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+ * lunr.Vector
+ * Copyright (C) 2020 Oliver Nightingale
+ */,C.Vector=function(e){this._magnitude=0,this.elements=e||[]},C.Vector.prototype.positionForIndex=function(e){if(0==this.elements.length)return 0;for(var t=0,r=this.elements.length/2,n=r-t,i=Math.floor(n/2),s=this.elements[2*i];n>1&&(s<e&&(t=i),s>e&&(r=i),s!=e);)n=r-t,i=t+Math.floor(n/2),s=this.elements[2*i];return s==e||s>e?2*i:s<e?2*(i+1):void 0},C.Vector.prototype.insert=function(e,t){this.upsert(e,t,(function(){throw"duplicate index"}))},C.Vector.prototype.upsert=function(e,t,r){this._magnitude=0;var n=this.positionForIndex(e);this.elements[n]==e?this.elements[n+1]=r(this.elements[n+1],t):this.elements.splice(n,0,e,t)},C.Vector.prototype.magnitude=function(){if(this._magnitude)return this._magnitude;for(var e=0,t=this.elements.length,r=1;r<t;r+=2){var n=this.elements[r];e+=n*n}return this._magnitude=Math.sqrt(e)},C.Vector.prototype.dot=function(e){for(var t=0,r=this.elements,n=e.elements,i=r.length,s=n.length,o=0,a=0,u=0,l=0;u<i&&l<s;)(o=r[u])<(a=n[l])?u+=2:o>a?l+=2:o==a&&(t+=r[u+1]*n[l+1],u+=2,l+=2);return t},C.Vector.prototype.similarity=function(e){return this.dot(e)/this.magnitude()||0},C.Vector.prototype.toArray=function(){for(var e=new Array(this.elements.length/2),t=1,r=0;t<this.elements.length;t+=2,r++)e[r]=this.elements[t];return e},C.Vector.prototype.toJSON=function(){return this.elements}
+/*!
+ * lunr.stemmer
+ * Copyright (C) 2020 Oliver Nightingale
+ * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt
+ */,C.stemmer=(o={ational:"ate",tional:"tion",enci:"ence",anci:"ance",izer:"ize",bli:"ble",alli:"al",entli:"ent",eli:"e",ousli:"ous",ization:"ize",ation:"ate",ator:"ate",alism:"al",iveness:"ive",fulness:"ful",ousness:"ous",aliti:"al",iviti:"ive",biliti:"ble",logi:"log"},a={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},u="[aeiouy]",l="[^aeiou][^aeiouy]*",c=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),h=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),d=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*([aeiouy][aeiou]*)?$"),f=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy]"),p=/^(.+?)(ss|i)es$/,y=/^(.+?)([^s])s$/,m=/^(.+?)eed$/,v=/^(.+?)(ed|ing)$/,g=/.$/,x=/(at|bl|iz)$/,w=new RegExp("([^aeiouylsz])\\1$"),L=new RegExp("^"+l+u+"[^aeiouwxy]$"),E=/^(.+?[^aeiou])y$/,b=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,S=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,k=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,Q=/^(.+?)(s|t)(ion)$/,O=/^(.+?)e$/,P=/ll$/,T=new RegExp("^"+l+u+"[^aeiouwxy]$"),_=function(e){var t,r,n,i,s,u,l;if(e.length<3)return e;if("y"==(n=e.substr(0,1))&&(e=n.toUpperCase()+e.substr(1)),s=y,(i=p).test(e)?e=e.replace(i,"$1$2"):s.test(e)&&(e=e.replace(s,"$1$2")),s=v,(i=m).test(e)){var _=i.exec(e);(i=c).test(_[1])&&(i=g,e=e.replace(i,""))}else s.test(e)&&(t=(_=s.exec(e))[1],(s=f).test(t)&&(u=w,l=L,(s=x).test(e=t)?e+="e":u.test(e)?(i=g,e=e.replace(i,"")):l.test(e)&&(e+="e")));return(i=E).test(e)&&(e=(t=(_=i.exec(e))[1])+"i"),(i=b).test(e)&&(t=(_=i.exec(e))[1],r=_[2],(i=c).test(t)&&(e=t+o[r])),(i=S).test(e)&&(t=(_=i.exec(e))[1],r=_[2],(i=c).test(t)&&(e=t+a[r])),s=Q,(i=k).test(e)?(t=(_=i.exec(e))[1],(i=h).test(t)&&(e=t)):s.test(e)&&(t=(_=s.exec(e))[1]+_[2],(s=h).test(t)&&(e=t)),(i=O).test(e)&&(t=(_=i.exec(e))[1],s=d,u=T,((i=h).test(t)||s.test(t)&&!u.test(t))&&(e=t)),s=h,(i=P).test(e)&&s.test(e)&&(i=g,e=e.replace(i,"")),"y"==n&&(e=n.toLowerCase()+e.substr(1)),e},function(e){return e.update(_)}),C.Pipeline.registerFunction(C.stemmer,"stemmer")
+/*!
+ * lunr.stopWordFilter
+ * Copyright (C) 2020 Oliver Nightingale
+ */,C.generateStopWordFilter=function(e){var t=e.reduce((function(e,t){return e[t]=t,e}),{});return function(e){if(e&&t[e.toString()]!==e.toString())return e}},C.stopWordFilter=C.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),C.Pipeline.registerFunction(C.stopWordFilter,"stopWordFilter")
+/*!
+ * lunr.trimmer
+ * Copyright (C) 2020 Oliver Nightingale
+ */,C.trimmer=function(e){return e.update((function(e){return e.replace(/^\W+/,"").replace(/\W+$/,"")}))},C.Pipeline.registerFunction(C.trimmer,"trimmer")
+/*!
+ * lunr.TokenSet
+ * Copyright (C) 2020 Oliver Nightingale
+ */,C.TokenSet=function(){this.final=!1,this.edges={},this.id=C.TokenSet._nextId,C.TokenSet._nextId+=1},C.TokenSet._nextId=1,C.TokenSet.fromArray=function(e){for(var t=new C.TokenSet.Builder,r=0,n=e.length;r<n;r++)t.insert(e[r]);return t.finish(),t.root},C.TokenSet.fromClause=function(e){return"editDistance"in e?C.TokenSet.fromFuzzyString(e.term,e.editDistance):C.TokenSet.fromString(e.term)},C.TokenSet.fromFuzzyString=function(e,t){for(var r=new C.TokenSet,n=[{node:r,editsRemaining:t,str:e}];n.length;){var i=n.pop();if(i.str.length>0){var s,o=i.str.charAt(0);o in i.node.edges?s=i.node.edges[o]:(s=new C.TokenSet,i.node.edges[o]=s),1==i.str.length&&(s.final=!0),n.push({node:s,editsRemaining:i.editsRemaining,str:i.str.slice(1)})}if(0!=i.editsRemaining){if("*"in i.node.edges)var a=i.node.edges["*"];else{a=new C.TokenSet;i.node.edges["*"]=a}if(0==i.str.length&&(a.final=!0),n.push({node:a,editsRemaining:i.editsRemaining-1,str:i.str}),i.str.length>1&&n.push({node:i.node,editsRemaining:i.editsRemaining-1,str:i.str.slice(1)}),1==i.str.length&&(i.node.final=!0),i.str.length>=1){if("*"in i.node.edges)var u=i.node.edges["*"];else{u=new C.TokenSet;i.node.edges["*"]=u}1==i.str.length&&(u.final=!0),n.push({node:u,editsRemaining:i.editsRemaining-1,str:i.str.slice(1)})}if(i.str.length>1){var l,c=i.str.charAt(0),h=i.str.charAt(1);h in i.node.edges?l=i.node.edges[h]:(l=new C.TokenSet,i.node.edges[h]=l),1==i.str.length&&(l.final=!0),n.push({node:l,editsRemaining:i.editsRemaining-1,str:c+i.str.slice(2)})}}}return r},C.TokenSet.fromString=function(e){for(var t=new C.TokenSet,r=t,n=0,i=e.length;n<i;n++){var s=e[n],o=n==i-1;if("*"==s)t.edges[s]=t,t.final=o;else{var a=new C.TokenSet;a.final=o,t.edges[s]=a,t=a}}return r},C.TokenSet.prototype.toArray=function(){for(var e=[],t=[{prefix:"",node:this}];t.length;){var r=t.pop(),n=Object.keys(r.node.edges),i=n.length;r.node.final&&(r.prefix.charAt(0),e.push(r.prefix));for(var s=0;s<i;s++){var o=n[s];t.push({prefix:r.prefix.concat(o),node:r.node.edges[o]})}}return e},C.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",t=Object.keys(this.edges).sort(),r=t.length,n=0;n<r;n++){var i=t[n];e=e+i+this.edges[i].id}return e},C.TokenSet.prototype.intersect=function(e){for(var t=new C.TokenSet,r=void 0,n=[{qNode:e,output:t,node:this}];n.length;){r=n.pop();for(var i=Object.keys(r.qNode.edges),s=i.length,o=Object.keys(r.node.edges),a=o.length,u=0;u<s;u++)for(var l=i[u],c=0;c<a;c++){var h=o[c];if(h==l||"*"==l){var d=r.node.edges[h],f=r.qNode.edges[l],p=d.final&&f.final,y=void 0;h in r.output.edges?(y=r.output.edges[h]).final=y.final||p:((y=new C.TokenSet).final=p,r.output.edges[h]=y),n.push({qNode:f,output:y,node:d})}}}return t},C.TokenSet.Builder=function(){this.previousWord="",this.root=new C.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},C.TokenSet.Builder.prototype.insert=function(e){var t,r=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var n=0;n<e.length&&n<this.previousWord.length&&e[n]==this.previousWord[n];n++)r++;this.minimize(r),t=0==this.uncheckedNodes.length?this.root:this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(n=r;n<e.length;n++){var i=new C.TokenSet,s=e[n];t.edges[s]=i,this.uncheckedNodes.push({parent:t,char:s,child:i}),t=i}t.final=!0,this.previousWord=e},C.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},C.TokenSet.Builder.prototype.minimize=function(e){for(var t=this.uncheckedNodes.length-1;t>=e;t--){var r=this.uncheckedNodes[t],n=r.child.toString();n in this.minimizedNodes?r.parent.edges[r.char]=this.minimizedNodes[n]:(r.child._str=n,this.minimizedNodes[n]=r.child),this.uncheckedNodes.pop()}}
+/*!
+ * lunr.Index
+ * Copyright (C) 2020 Oliver Nightingale
+ */,C.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},C.Index.prototype.search=function(e){return this.query((function(t){new C.QueryParser(e,t).parse()}))},C.Index.prototype.query=function(e){for(var t=new C.Query(this.fields),r=Object.create(null),n=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=0;a<this.fields.length;a++)n[this.fields[a]]=new C.Vector;e.call(t,t);for(a=0;a<t.clauses.length;a++){var u=t.clauses[a],l=null,c=C.Set.empty;l=u.usePipeline?this.pipeline.runString(u.term,{fields:u.fields}):[u.term];for(var h=0;h<l.length;h++){var d=l[h];u.term=d;var f=C.TokenSet.fromClause(u),p=this.tokenSet.intersect(f).toArray();if(0===p.length&&u.presence===C.Query.presence.REQUIRED){for(var y=0;y<u.fields.length;y++){s[R=u.fields[y]]=C.Set.empty}break}for(var m=0;m<p.length;m++){var v=p[m],g=this.invertedIndex[v],x=g._index;for(y=0;y<u.fields.length;y++){var w=g[R=u.fields[y]],L=Object.keys(w),E=v+"/"+R,b=new C.Set(L);if(u.presence==C.Query.presence.REQUIRED&&(c=c.union(b),void 0===s[R]&&(s[R]=C.Set.complete)),u.presence!=C.Query.presence.PROHIBITED){if(n[R].upsert(x,u.boost,(function(e,t){return e+t})),!i[E]){for(var S=0;S<L.length;S++){var k,Q=L[S],O=new C.FieldRef(Q,R),P=w[Q];void 0===(k=r[O])?r[O]=new C.MatchData(v,R,P):k.add(v,R,P)}i[E]=!0}}else void 0===o[R]&&(o[R]=C.Set.empty),o[R]=o[R].union(b)}}}if(u.presence===C.Query.presence.REQUIRED)for(y=0;y<u.fields.length;y++){s[R=u.fields[y]]=s[R].intersect(c)}}var T=C.Set.complete,_=C.Set.empty;for(a=0;a<this.fields.length;a++){var R;s[R=this.fields[a]]&&(T=T.intersect(s[R])),o[R]&&(_=_.union(o[R]))}var I=Object.keys(r),j=[],F=Object.create(null);if(t.isNegated()){I=Object.keys(this.fieldVectors);for(a=0;a<I.length;a++){O=I[a];var N=C.FieldRef.fromString(O);r[O]=new C.MatchData}}for(a=0;a<I.length;a++){var D=(N=C.FieldRef.fromString(I[a])).docRef;if(T.contains(D)&&!_.contains(D)){var A,z=this.fieldVectors[N],q=n[N.fieldName].similarity(z);if(void 0!==(A=F[D]))A.score+=q,A.matchData.combine(r[N]);else{var V={ref:D,score:q,matchData:r[N]};F[D]=V,j.push(V)}}}return j.sort((function(e,t){return t.score-e.score}))},C.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map((function(e){return[e,this.invertedIndex[e]]}),this),t=Object.keys(this.fieldVectors).map((function(e){return[e,this.fieldVectors[e].toJSON()]}),this);return{version:C.version,fields:this.fields,fieldVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},C.Index.load=function(e){var t={},r={},n=e.fieldVectors,i=Object.create(null),s=e.invertedIndex,o=new C.TokenSet.Builder,a=C.Pipeline.load(e.pipeline);e.version!=C.version&&C.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+C.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<n.length;u++){var l=(h=n[u])[0],c=h[1];r[l]=new C.Vector(c)}for(u=0;u<s.length;u++){var h,d=(h=s[u])[0],f=h[1];o.insert(d),i[d]=f}return o.finish(),t.fields=e.fields,t.fieldVectors=r,t.invertedIndex=i,t.tokenSet=o.root,t.pipeline=a,new C.Index(t)}
+/*!
+ * lunr.Builder
+ * Copyright (C) 2020 Oliver Nightingale
+ */,C.Builder=function(){this._ref="id",this._fields=Object.create(null),this._documents=Object.create(null),this.invertedIndex=Object.create(null),this.fieldTermFrequencies={},this.fieldLengths={},this.tokenizer=C.tokenizer,this.pipeline=new C.Pipeline,this.searchPipeline=new C.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},C.Builder.prototype.ref=function(e){this._ref=e},C.Builder.prototype.field=function(e,t){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=t||{}},C.Builder.prototype.b=function(e){this._b=e<0?0:e>1?1:e},C.Builder.prototype.k1=function(e){this._k1=e},C.Builder.prototype.add=function(e,t){var r=e[this._ref],n=Object.keys(this._fields);this._documents[r]=t||{},this.documentCount+=1;for(var i=0;i<n.length;i++){var s=n[i],o=this._fields[s].extractor,a=o?o(e):e[s],u=this.tokenizer(a,{fields:[s]}),l=this.pipeline.run(u),c=new C.FieldRef(r,s),h=Object.create(null);this.fieldTermFrequencies[c]=h,this.fieldLengths[c]=0,this.fieldLengths[c]+=l.length;for(var d=0;d<l.length;d++){var f=l[d];if(null==h[f]&&(h[f]=0),h[f]+=1,null==this.invertedIndex[f]){var p=Object.create(null);p._index=this.termIndex,this.termIndex+=1;for(var y=0;y<n.length;y++)p[n[y]]=Object.create(null);this.invertedIndex[f]=p}null==this.invertedIndex[f][s][r]&&(this.invertedIndex[f][s][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var v=this.metadataWhitelist[m],g=f.metadata[v];null==this.invertedIndex[f][s][r][v]&&(this.invertedIndex[f][s][r][v]=[]),this.invertedIndex[f][s][r][v].push(g)}}}},C.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),t=e.length,r={},n={},i=0;i<t;i++){var s=C.FieldRef.fromString(e[i]),o=s.fieldName;n[o]||(n[o]=0),n[o]+=1,r[o]||(r[o]=0),r[o]+=this.fieldLengths[s]}var a=Object.keys(this._fields);for(i=0;i<a.length;i++){var u=a[i];r[u]=r[u]/n[u]}this.averageFieldLength=r},C.Builder.prototype.createFieldVectors=function(){for(var e={},t=Object.keys(this.fieldTermFrequencies),r=t.length,n=Object.create(null),i=0;i<r;i++){for(var s=C.FieldRef.fromString(t[i]),o=s.fieldName,a=this.fieldLengths[s],u=new C.Vector,l=this.fieldTermFrequencies[s],c=Object.keys(l),h=c.length,d=this._fields[o].boost||1,f=this._documents[s.docRef].boost||1,p=0;p<h;p++){var y,m,v,g=c[p],x=l[g],w=this.invertedIndex[g]._index;void 0===n[g]?(y=C.idf(this.invertedIndex[g],this.documentCount),n[g]=y):y=n[g],m=y*((this._k1+1)*x)/(this._k1*(1-this._b+this._b*(a/this.averageFieldLength[o]))+x),m*=d,m*=f,v=Math.round(1e3*m)/1e3,u.insert(w,v)}e[s]=u}this.fieldVectors=e},C.Builder.prototype.createTokenSet=function(){this.tokenSet=C.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},C.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new C.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},C.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},C.MatchData=function(e,t,r){for(var n=Object.create(null),i=Object.keys(r||{}),s=0;s<i.length;s++){var o=i[s];n[o]=r[o].slice()}this.metadata=Object.create(null),void 0!==e&&(this.metadata[e]=Object.create(null),this.metadata[e][t]=n)},C.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),r=0;r<t.length;r++){var n=t[r],i=Object.keys(e.metadata[n]);null==this.metadata[n]&&(this.metadata[n]=Object.create(null));for(var s=0;s<i.length;s++){var o=i[s],a=Object.keys(e.metadata[n][o]);null==this.metadata[n][o]&&(this.metadata[n][o]=Object.create(null));for(var u=0;u<a.length;u++){var l=a[u];null==this.metadata[n][o][l]?this.metadata[n][o][l]=e.metadata[n][o][l]:this.metadata[n][o][l]=this.metadata[n][o][l].concat(e.metadata[n][o][l])}}}},C.MatchData.prototype.add=function(e,t,r){if(!(e in this.metadata))return this.metadata[e]=Object.create(null),void(this.metadata[e][t]=r);if(t in this.metadata[e])for(var n=Object.keys(r),i=0;i<n.length;i++){var s=n[i];s in this.metadata[e][t]?this.metadata[e][t][s]=this.metadata[e][t][s].concat(r[s]):this.metadata[e][t][s]=r[s]}else this.metadata[e][t]=r},C.Query=function(e){this.clauses=[],this.allFields=e},C.Query.wildcard=new String("*"),C.Query.wildcard.NONE=0,C.Query.wildcard.LEADING=1,C.Query.wildcard.TRAILING=2,C.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},C.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),"wildcard"in e||(e.wildcard=C.Query.wildcard.NONE),e.wildcard&C.Query.wildcard.LEADING&&e.term.charAt(0)!=C.Query.wildcard&&(e.term="*"+e.term),e.wildcard&C.Query.wildcard.TRAILING&&e.term.slice(-1)!=C.Query.wildcard&&(e.term=e.term+"*"),"presence"in e||(e.presence=C.Query.presence.OPTIONAL),this.clauses.push(e),this},C.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=C.Query.presence.PROHIBITED)return!1;return!0},C.Query.prototype.term=function(e,t){if(Array.isArray(e))return e.forEach((function(e){this.term(e,C.utils.clone(t))}),this),this;var r=t||{};return r.term=e.toString(),this.clause(r),this},C.QueryParseError=function(e,t,r){this.name="QueryParseError",this.message=e,this.start=t,this.end=r},C.QueryParseError.prototype=new Error,C.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},C.QueryLexer.prototype.run=function(){for(var e=C.QueryLexer.lexText;e;)e=e(this)},C.QueryLexer.prototype.sliceString=function(){for(var e=[],t=this.start,r=this.pos,n=0;n<this.escapeCharPositions.length;n++)r=this.escapeCharPositions[n],e.push(this.str.slice(t,r)),t=r+1;return e.push(this.str.slice(t,this.pos)),this.escapeCharPositions.length=0,e.join("")},C.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},C.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},C.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return C.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},C.QueryLexer.prototype.width=function(){return this.pos-this.start},C.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},C.QueryLexer.prototype.backup=function(){this.pos-=1},C.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do{t=(e=this.next()).charCodeAt(0)}while(t>47&&t<58);e!=C.QueryLexer.EOS&&this.backup()},C.QueryLexer.prototype.more=function(){return this.pos<this.length},C.QueryLexer.EOS="EOS",C.QueryLexer.FIELD="FIELD",C.QueryLexer.TERM="TERM",C.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",C.QueryLexer.BOOST="BOOST",C.QueryLexer.PRESENCE="PRESENCE",C.QueryLexer.lexField=function(e){return e.backup(),e.emit(C.QueryLexer.FIELD),e.ignore(),C.QueryLexer.lexText},C.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(C.QueryLexer.TERM)),e.ignore(),e.more())return C.QueryLexer.lexText},C.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(C.QueryLexer.EDIT_DISTANCE),C.QueryLexer.lexText},C.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(C.QueryLexer.BOOST),C.QueryLexer.lexText},C.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(C.QueryLexer.TERM)},C.QueryLexer.termSeparator=C.tokenizer.separator,C.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==C.QueryLexer.EOS)return C.QueryLexer.lexEOS;if(92!=t.charCodeAt(0)){if(":"==t)return C.QueryLexer.lexField;if("~"==t)return e.backup(),e.width()>0&&e.emit(C.QueryLexer.TERM),C.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),e.width()>0&&e.emit(C.QueryLexer.TERM),C.QueryLexer.lexBoost;if("+"==t&&1===e.width())return e.emit(C.QueryLexer.PRESENCE),C.QueryLexer.lexText;if("-"==t&&1===e.width())return e.emit(C.QueryLexer.PRESENCE),C.QueryLexer.lexText;if(t.match(C.QueryLexer.termSeparator))return C.QueryLexer.lexTerm}else e.escapeCharacter()}},C.QueryParser=function(e,t){this.lexer=new C.QueryLexer(e),this.query=t,this.currentClause={},this.lexemeIdx=0},C.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=C.QueryParser.parseClause;e;)e=e(this);return this.query},C.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},C.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},C.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},C.QueryParser.parseClause=function(e){var t=e.peekLexeme();if(null!=t)switch(t.type){case C.QueryLexer.PRESENCE:return C.QueryParser.parsePresence;case C.QueryLexer.FIELD:return C.QueryParser.parseField;case C.QueryLexer.TERM:return C.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+t.type;throw t.str.length>=1&&(r+=" with value '"+t.str+"'"),new C.QueryParseError(r,t.start,t.end)}},C.QueryParser.parsePresence=function(e){var t=e.consumeLexeme();if(null!=t){switch(t.str){case"-":e.currentClause.presence=C.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=C.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+t.str+"'";throw new C.QueryParseError(r,t.start,t.end)}var n=e.peekLexeme();if(null==n){r="expecting term or field, found nothing";throw new C.QueryParseError(r,t.start,t.end)}switch(n.type){case C.QueryLexer.FIELD:return C.QueryParser.parseField;case C.QueryLexer.TERM:return C.QueryParser.parseTerm;default:r="expecting term or field, found '"+n.type+"'";throw new C.QueryParseError(r,n.start,n.end)}}},C.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(null!=t){if(-1==e.query.allFields.indexOf(t.str)){var r=e.query.allFields.map((function(e){return"'"+e+"'"})).join(", "),n="unrecognised field '"+t.str+"', possible fields: "+r;throw new C.QueryParseError(n,t.start,t.end)}e.currentClause.fields=[t.str];var i=e.peekLexeme();if(null==i){n="expecting term, found nothing";throw new C.QueryParseError(n,t.start,t.end)}switch(i.type){case C.QueryLexer.TERM:return C.QueryParser.parseTerm;default:n="expecting term, found '"+i.type+"'";throw new C.QueryParseError(n,i.start,i.end)}}},C.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(null!=t){e.currentClause.term=t.str.toLowerCase(),-1!=t.str.indexOf("*")&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(null!=r)switch(r.type){case C.QueryLexer.TERM:return e.nextClause(),C.QueryParser.parseTerm;case C.QueryLexer.FIELD:return e.nextClause(),C.QueryParser.parseField;case C.QueryLexer.EDIT_DISTANCE:return C.QueryParser.parseEditDistance;case C.QueryLexer.BOOST:return C.QueryParser.parseBoost;case C.QueryLexer.PRESENCE:return e.nextClause(),C.QueryParser.parsePresence;default:var n="Unexpected lexeme type '"+r.type+"'";throw new C.QueryParseError(n,r.start,r.end)}else e.nextClause()}},C.QueryParser.parseEditDistance=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var n="edit distance must be numeric";throw new C.QueryParseError(n,t.start,t.end)}e.currentClause.editDistance=r;var i=e.peekLexeme();if(null!=i)switch(i.type){case C.QueryLexer.TERM:return e.nextClause(),C.QueryParser.parseTerm;case C.QueryLexer.FIELD:return e.nextClause(),C.QueryParser.parseField;case C.QueryLexer.EDIT_DISTANCE:return C.QueryParser.parseEditDistance;case C.QueryLexer.BOOST:return C.QueryParser.parseBoost;case C.QueryLexer.PRESENCE:return e.nextClause(),C.QueryParser.parsePresence;default:n="Unexpected lexeme type '"+i.type+"'";throw new C.QueryParseError(n,i.start,i.end)}else e.nextClause()}},C.QueryParser.parseBoost=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var n="boost must be numeric";throw new C.QueryParseError(n,t.start,t.end)}e.currentClause.boost=r;var i=e.peekLexeme();if(null!=i)switch(i.type){case C.QueryLexer.TERM:return e.nextClause(),C.QueryParser.parseTerm;case C.QueryLexer.FIELD:return e.nextClause(),C.QueryParser.parseField;case C.QueryLexer.EDIT_DISTANCE:return C.QueryParser.parseEditDistance;case C.QueryLexer.BOOST:return C.QueryParser.parseBoost;case C.QueryLexer.PRESENCE:return e.nextClause(),C.QueryParser.parsePresence;default:n="Unexpected lexeme type '"+i.type+"'";throw new C.QueryParseError(n,i.start,i.end)}else e.nextClause()}},void 0===(i="function"==typeof(n=function(){return C})?n.call(t,r,t,e):n)||(e.exports=i)}()},function(e,t,r){},function(e,t,r){"use strict";r.r(t);var n=[];function i(e,t){n.push({selector:t,constructor:e})}var s,o,a=function(){function e(){this.createComponents(document.body)}return e.prototype.createComponents=function(e){n.forEach((function(t){e.querySelectorAll(t.selector).forEach((function(e){e.dataset.hasInstance||(new t.constructor({el:e}),e.dataset.hasInstance=String(!0))}))}))},e}(),u=function(e){this.el=e.el},l=r(0),c=(s=function(e,t){return(s=Object.setPrototypeOf||{__proto__:[]}instanceof 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+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>State | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
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+								<span class="tsd-select-label">All</span>
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+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
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+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
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+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.state.html">State</a>
+				</li>
+			</ul>
+			<h1>Enumeration State</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
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+						<p>Describe possible states</p>
+					</div>
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+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Enumeration members</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-enum-member tsd-parent-kind-enum"><a href="_interfaces_.state.html#failure" class="tsd-kind-icon">Failure</a></li>
+								<li class="tsd-kind-enum-member tsd-parent-kind-enum"><a href="_interfaces_.state.html#pending" class="tsd-kind-icon">Pending</a></li>
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+				<h2>Enumeration members</h2>
+				<section class="tsd-panel tsd-member tsd-kind-enum-member tsd-parent-kind-enum">
+					<a name="failure" class="tsd-anchor"></a>
+					<h3>Failure</h3>
+					<div class="tsd-signature tsd-kind-icon">Failure<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol"> = &quot;Failure&quot;</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L41">interfaces.ts:41</a></li>
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+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L41">interfaces.ts:41</a></li>
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+					<div class="tsd-signature tsd-kind-icon">Success<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol"> = &quot;Success&quot;</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L41">interfaces.ts:41</a></li>
+						</ul>
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+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
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+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
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+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
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+						<a href="_interfaces_.state.html" class="tsd-kind-icon">State</a>
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+							<li class=" tsd-kind-enum-member tsd-parent-kind-enum">
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
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new file mode 100644
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+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
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+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
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+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
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+				<li>
+					<a href="globals.html">Globals</a>
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+			<h1>epm-mentoring-program-2020-be</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
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+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Modules</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-module"><a href="modules/_interfaces_.html" class="tsd-kind-icon">&quot;interfaces&quot;</a></li>
+							</ul>
+						</section>
+					</div>
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+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals current ">
+						<a href="globals.html"><em>Globals</em></a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
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+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
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diff --git a/BE/docs/index.html b/BE/docs/index.html
new file mode 100644
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+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="assets/js/search.json" data-base=".">
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+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
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+								<span class="tsd-select-label">All</span>
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+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
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+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
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+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
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+	<div class="tsd-page-title">
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+				<li>
+					<a href="globals.html">Globals</a>
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+			<h1>epm-mentoring-program-2020-be</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<div class="tsd-panel tsd-typography">
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+					<h1>epm-mentoring-program-2020</h1>
+				</a>
+			</div>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="globals.html"><em>Globals</em></a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="modules/_interfaces_.html">&quot;interfaces&quot;</a>
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+				</ul>
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+			<nav class="tsd-navigation secondary menu-sticky">
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+		<div class="tsd-legend-group">
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+			</ul>
+			<ul class="tsd-legend">
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diff --git a/BE/docs/interfaces/_interfaces_.achievements.html b/BE/docs/interfaces/_interfaces_.achievements.html
new file mode 100644
index 0000000..a1246fb
--- /dev/null
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@@ -0,0 +1,257 @@
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+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>Achievements | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
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+<body>
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+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
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+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
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+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
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+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.achievements.html">Achievements</a>
+				</li>
+			</ul>
+			<h1>Interface Achievements</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>Achievement describes a set of several tasks accomplished in the specific way.
+						For example: “Complete each task 7 days in a row” or “Complete 5 tasks before 8:00 AM”</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<a href="_interfaces_.task.html" class="tsd-signature-type">Task</a>
+						<ul class="tsd-hierarchy">
+							<li>
+								<span class="target">Achievements</span>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.achievements.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.achievements.html#id" class="tsd-kind-icon">id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.achievements.html#image" class="tsd-kind-icon">image</a></li>
+							</ul>
+						</section>
+						<section class="tsd-index-section ">
+							<h3>Methods</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-method tsd-parent-kind-interface"><a href="_interfaces_.achievements.html#checkcomplete" class="tsd-kind-icon">check<wbr>Complete</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#description">description</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L7">interfaces.ts:7</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#id">id</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L6">interfaces.ts:6</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="image" class="tsd-anchor"></a>
+					<h3>image</h3>
+					<div class="tsd-signature tsd-kind-icon">image<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.image.html" class="tsd-signature-type">Image</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L16">interfaces.ts:16</a></li>
+						</ul>
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+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Methods</h2>
+				<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface">
+					<a name="checkcomplete" class="tsd-anchor"></a>
+					<h3>check<wbr>Complete</h3>
+					<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface">
+						<li class="tsd-signature tsd-kind-icon">check<wbr>Complete<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></li>
+					</ul>
+					<ul class="tsd-descriptions">
+						<li class="tsd-description">
+							<aside class="tsd-sources">
+								<ul>
+									<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L18">interfaces.ts:18</a></li>
+								</ul>
+							</aside>
+							<h4 class="tsd-returns-title">Returns <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></h4>
+						</li>
+					</ul>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.achievements.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.achievements.html#id" class="tsd-kind-icon">id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.achievements.html#image" class="tsd-kind-icon">image</a>
+							</li>
+							<li class=" tsd-kind-method tsd-parent-kind-interface">
+								<a href="_interfaces_.achievements.html#checkcomplete" class="tsd-kind-icon">check<wbr>Complete</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+				<li class="tsd-kind-method tsd-parent-kind-interface"><span class="tsd-kind-icon">Method</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
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+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.actualachievement.html b/BE/docs/interfaces/_interfaces_.actualachievement.html
new file mode 100644
index 0000000..7e4c470
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.actualachievement.html
@@ -0,0 +1,242 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>ActualAchievement | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.actualachievement.html">ActualAchievement</a>
+				</li>
+			</ul>
+			<h1>Interface ActualAchievement</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>ActualAchievement provides information about an achievement and its current
+						status in scope of the challenge</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<a href="_interfaces_.actualtask.html" class="tsd-signature-type">ActualTask</a>
+						<ul class="tsd-hierarchy">
+							<li>
+								<span class="target">ActualAchievement</span>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.actualachievement.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.actualachievement.html#id" class="tsd-kind-icon">id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.actualachievement.html#image" class="tsd-kind-icon">image</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.actualachievement.html#status" class="tsd-kind-icon">status</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#description">description</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L7">interfaces.ts:7</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#id">id</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L6">interfaces.ts:6</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="image" class="tsd-anchor"></a>
+					<h3>image</h3>
+					<div class="tsd-signature tsd-kind-icon">image<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.image.html" class="tsd-signature-type">Image</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L79">interfaces.ts:79</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="status" class="tsd-anchor"></a>
+					<h3>status</h3>
+					<div class="tsd-signature tsd-kind-icon">status<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.actualtask.html">ActualTask</a>.<a href="_interfaces_.actualtask.html#status">status</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L64">interfaces.ts:64</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.actualachievement.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.actualachievement.html#id" class="tsd-kind-icon">id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.actualachievement.html#image" class="tsd-kind-icon">image</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.actualachievement.html#status" class="tsd-kind-icon">status</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
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+<script src="../assets/js/main.js"></script>
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+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.actualtask.html b/BE/docs/interfaces/_interfaces_.actualtask.html
new file mode 100644
index 0000000..115f835
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.actualtask.html
@@ -0,0 +1,234 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>ActualTask | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
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+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
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+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
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+				<li>
+					<a href="_interfaces_.actualtask.html">ActualTask</a>
+				</li>
+			</ul>
+			<h1>Interface ActualTask</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>ActualTask provides information about a task and its current status in scope of the challenge</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<a href="_interfaces_.task.html" class="tsd-signature-type">Task</a>
+						<ul class="tsd-hierarchy">
+							<li>
+								<span class="target">ActualTask</span>
+								<ul class="tsd-hierarchy">
+									<li>
+										<a href="_interfaces_.archiveitem.html" class="tsd-signature-type">ArchiveItem</a>
+									</li>
+									<li>
+										<a href="_interfaces_.actualachievement.html" class="tsd-signature-type">ActualAchievement</a>
+									</li>
+								</ul>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.actualtask.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.actualtask.html#id" class="tsd-kind-icon">id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.actualtask.html#status" class="tsd-kind-icon">status</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#description">description</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L7">interfaces.ts:7</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#id">id</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L6">interfaces.ts:6</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="status" class="tsd-anchor"></a>
+					<h3>status</h3>
+					<div class="tsd-signature tsd-kind-icon">status<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L64">interfaces.ts:64</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.actualtask.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.actualtask.html#id" class="tsd-kind-icon">id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.actualtask.html#status" class="tsd-kind-icon">status</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.archiveitem.html b/BE/docs/interfaces/_interfaces_.archiveitem.html
new file mode 100644
index 0000000..f0aa63e
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.archiveitem.html
@@ -0,0 +1,241 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>ArchiveItem | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.archiveitem.html">ArchiveItem</a>
+				</li>
+			</ul>
+			<h1>Interface ArchiveItem</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>ArchiveItem describes a task and its status for all past tasks in the challenge</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<a href="_interfaces_.actualtask.html" class="tsd-signature-type">ActualTask</a>
+						<ul class="tsd-hierarchy">
+							<li>
+								<span class="target">ArchiveItem</span>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.archiveitem.html#challengeid" class="tsd-kind-icon">challenge<wbr>Id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.archiveitem.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.archiveitem.html#id" class="tsd-kind-icon">id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.archiveitem.html#status" class="tsd-kind-icon">status</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="challengeid" class="tsd-anchor"></a>
+					<h3>challenge<wbr>Id</h3>
+					<div class="tsd-signature tsd-kind-icon">challenge<wbr>Id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L71">interfaces.ts:71</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#description">description</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L7">interfaces.ts:7</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#id">id</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L6">interfaces.ts:6</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="status" class="tsd-anchor"></a>
+					<h3>status</h3>
+					<div class="tsd-signature tsd-kind-icon">status<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.actualtask.html">ActualTask</a>.<a href="_interfaces_.actualtask.html#status">status</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L64">interfaces.ts:64</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.archiveitem.html#challengeid" class="tsd-kind-icon">challenge<wbr>Id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.archiveitem.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.archiveitem.html#id" class="tsd-kind-icon">id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.archiveitem.html#status" class="tsd-kind-icon">status</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.challenge.html b/BE/docs/interfaces/_interfaces_.challenge.html
new file mode 100644
index 0000000..0ad53e6
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.challenge.html
@@ -0,0 +1,266 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>Challenge | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.challenge.html">Challenge</a>
+				</li>
+			</ul>
+			<h1>Interface Challenge</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>Challenge describes a 30-days period, during which randomly
+							chosen 30 tasks and 5 achievements are assigned for the user.
+							Starting from the first day, the user will receive a new task every day,
+							which should be completed before the midnight, overwise it will be marked as failed.
+							Achievements status is calculated based on tasks completion. After 30 days the
+						challenge could be successful (&gt;= 90% tasks completed) or failed (&lt;90% tasks completed)</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<span class="target">Challenge</span>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.challenge.html#achievementsstatus" class="tsd-kind-icon">achievements<wbr>Status</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.challenge.html#id" class="tsd-kind-icon">id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.challenge.html#startdate" class="tsd-kind-icon">start<wbr>Date</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.challenge.html#state" class="tsd-kind-icon">state</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.challenge.html#tasksorder" class="tsd-kind-icon">tasks<wbr>Order</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.challenge.html#tasksstatus" class="tsd-kind-icon">tasks<wbr>Status</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="achievementsstatus" class="tsd-anchor"></a>
+					<h3>achievements<wbr>Status</h3>
+					<div class="tsd-signature tsd-kind-icon">achievements<wbr>Status<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L57">interfaces.ts:57</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L52">interfaces.ts:52</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="startdate" class="tsd-anchor"></a>
+					<h3>start<wbr>Date</h3>
+					<div class="tsd-signature tsd-kind-icon">start<wbr>Date<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Date</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L54">interfaces.ts:54</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="state" class="tsd-anchor"></a>
+					<h3>state</h3>
+					<div class="tsd-signature tsd-kind-icon">state<span class="tsd-signature-symbol">:</span> <a href="../enums/_interfaces_.state.html" class="tsd-signature-type">State</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L53">interfaces.ts:53</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="tasksorder" class="tsd-anchor"></a>
+					<h3>tasks<wbr>Order</h3>
+					<div class="tsd-signature tsd-kind-icon">tasks<wbr>Order<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.task.html" class="tsd-signature-type">Task</a><span class="tsd-signature-symbol">[]</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L55">interfaces.ts:55</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="tasksstatus" class="tsd-anchor"></a>
+					<h3>tasks<wbr>Status</h3>
+					<div class="tsd-signature tsd-kind-icon">tasks<wbr>Status<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L56">interfaces.ts:56</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.challenge.html#achievementsstatus" class="tsd-kind-icon">achievements<wbr>Status</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.challenge.html#id" class="tsd-kind-icon">id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.challenge.html#startdate" class="tsd-kind-icon">start<wbr>Date</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.challenge.html#state" class="tsd-kind-icon">state</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.challenge.html#tasksorder" class="tsd-kind-icon">tasks<wbr>Order</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.challenge.html#tasksstatus" class="tsd-kind-icon">tasks<wbr>Status</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.image.html b/BE/docs/interfaces/_interfaces_.image.html
new file mode 100644
index 0000000..c1d8aaf
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.image.html
@@ -0,0 +1,205 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>Image | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.image.html">Image</a>
+				</li>
+			</ul>
+			<h1>Interface Image</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>Describes an image type. Contains path to an image and short description</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<span class="target">Image</span>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.image.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.image.html#path" class="tsd-kind-icon">path</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L26">interfaces.ts:26</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="path" class="tsd-anchor"></a>
+					<h3>path</h3>
+					<div class="tsd-signature tsd-kind-icon">path<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L25">interfaces.ts:25</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.image.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.image.html#path" class="tsd-kind-icon">path</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.status.html b/BE/docs/interfaces/_interfaces_.status.html
new file mode 100644
index 0000000..7eaeee8
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.status.html
@@ -0,0 +1,206 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>Status | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.status.html">Status</a>
+				</li>
+			</ul>
+			<h1>Interface Status</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>Status describes a state of some item (a task or anachievement)
+						and a timestamp, when this state was updated</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<span class="target">Status</span>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.status.html#state" class="tsd-kind-icon">state</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.status.html#updated" class="tsd-kind-icon">updated</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="state" class="tsd-anchor"></a>
+					<h3>state</h3>
+					<div class="tsd-signature tsd-kind-icon">state<span class="tsd-signature-symbol">:</span> <a href="../enums/_interfaces_.state.html" class="tsd-signature-type">State</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L34">interfaces.ts:34</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="updated" class="tsd-anchor"></a>
+					<h3>updated</h3>
+					<div class="tsd-signature tsd-kind-icon">updated<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Date</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L35">interfaces.ts:35</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
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+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
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+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.status.html#state" class="tsd-kind-icon">state</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.status.html#updated" class="tsd-kind-icon">updated</a>
+							</li>
+						</ul>
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
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+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.task.html b/BE/docs/interfaces/_interfaces_.task.html
new file mode 100644
index 0000000..7c97884
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.task.html
@@ -0,0 +1,217 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>Task | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.task.html">Task</a>
+				</li>
+			</ul>
+			<h1>Interface Task</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>Task describes a single action that should be done by the user.
+						For example: “Go for a 10 minutes run” or “Go to bed before 11:00 PM”</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<span class="target">Task</span>
+						<ul class="tsd-hierarchy">
+							<li>
+								<a href="_interfaces_.achievements.html" class="tsd-signature-type">Achievements</a>
+							</li>
+							<li>
+								<a href="_interfaces_.actualtask.html" class="tsd-signature-type">ActualTask</a>
+							</li>
+							<li>
+								<a href="_interfaces_.taskwithstatus.html" class="tsd-signature-type">TaskWithStatus</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.task.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.task.html#id" class="tsd-kind-icon">id</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L7">interfaces.ts:7</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L6">interfaces.ts:6</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.task.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.task.html#id" class="tsd-kind-icon">id</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/interfaces/_interfaces_.taskwithstatus.html b/BE/docs/interfaces/_interfaces_.taskwithstatus.html
new file mode 100644
index 0000000..b14304e
--- /dev/null
+++ b/BE/docs/interfaces/_interfaces_.taskwithstatus.html
@@ -0,0 +1,226 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>TaskWithStatus | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+				<li>
+					<a href="_interfaces_.taskwithstatus.html">TaskWithStatus</a>
+				</li>
+			</ul>
+			<h1>Interface TaskWithStatus</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-comment">
+				<div class="tsd-comment tsd-typography">
+					<div class="lead">
+						<p>describe task with status</p>
+					</div>
+				</div>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<a href="_interfaces_.task.html" class="tsd-signature-type">Task</a>
+						<ul class="tsd-hierarchy">
+							<li>
+								<span class="target">TaskWithStatus</span>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.taskwithstatus.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface tsd-is-inherited"><a href="_interfaces_.taskwithstatus.html#id" class="tsd-kind-icon">id</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-interface"><a href="_interfaces_.taskwithstatus.html#status" class="tsd-kind-icon">status</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="description" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#description">description</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L7">interfaces.ts:7</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+					<a name="id" class="tsd-anchor"></a>
+					<h3>id</h3>
+					<div class="tsd-signature tsd-kind-icon">id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="_interfaces_.task.html">Task</a>.<a href="_interfaces_.task.html#id">id</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L6">interfaces.ts:6</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface">
+					<a name="status" class="tsd-anchor"></a>
+					<h3>status</h3>
+					<div class="tsd-signature tsd-kind-icon">status<span class="tsd-signature-symbol">:</span> <a href="_interfaces_.status.html" class="tsd-signature-type">Status</a></div>
+					<aside class="tsd-sources">
+						<ul>
+							<li>Defined in <a href="https://github.com/lodka/epm-mentoring-program-2020/blob/7002d68/BE/src/interfaces/interfaces.ts#L86">interfaces.ts:86</a></li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.status.html" class="tsd-kind-icon">Status</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.task.html" class="tsd-kind-icon">Task</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-interface tsd-parent-kind-module">
+						<a href="_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a>
+						<ul>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.taskwithstatus.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface tsd-is-inherited">
+								<a href="_interfaces_.taskwithstatus.html#id" class="tsd-kind-icon">id</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-interface">
+								<a href="_interfaces_.taskwithstatus.html#status" class="tsd-kind-icon">status</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+				<li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
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+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
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+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/docs/modules/_interfaces_.html b/BE/docs/modules/_interfaces_.html
new file mode 100644
index 0000000..15046d6
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+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>&quot;interfaces&quot; | epm-mentoring-program-2020-be</title>
+	<meta name="description" content="Documentation for epm-mentoring-program-2020-be">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
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+					<a href="../index.html" class="title">epm-mentoring-program-2020-be</a>
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+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+							<input type="checkbox" id="tsd-filter-only-exported" />
+							<label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../globals.html">Globals</a>
+				</li>
+				<li>
+					<a href="_interfaces_.html">&quot;interfaces&quot;</a>
+				</li>
+			</ul>
+			<h1>Module &quot;interfaces&quot;</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section ">
+							<h3>Enumerations</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-enum tsd-parent-kind-module"><a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a></li>
+							</ul>
+						</section>
+						<section class="tsd-index-section ">
+							<h3>Interfaces</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.image.html" class="tsd-kind-icon">Image</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.status.html" class="tsd-kind-icon">Status</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.task.html" class="tsd-kind-icon">Task</a></li>
+								<li class="tsd-kind-interface tsd-parent-kind-module"><a href="../interfaces/_interfaces_.taskwithstatus.html" class="tsd-kind-icon">Task<wbr>With<wbr>Status</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class="globals  ">
+						<a href="../globals.html"><em>Globals</em></a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="_interfaces_.html">&quot;interfaces&quot;</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-enum tsd-parent-kind-module">
+						<a href="../enums/_interfaces_.state.html" class="tsd-kind-icon">State</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.achievements.html" class="tsd-kind-icon">Achievements</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.actualachievement.html" class="tsd-kind-icon">Actual<wbr>Achievement</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.actualtask.html" class="tsd-kind-icon">Actual<wbr>Task</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.archiveitem.html" class="tsd-kind-icon">Archive<wbr>Item</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.challenge.html" class="tsd-kind-icon">Challenge</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.image.html" class="tsd-kind-icon">Image</a>
+					</li>
+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.status.html" class="tsd-kind-icon">Status</a>
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
+						<a href="../interfaces/_interfaces_.task.html" class="tsd-kind-icon">Task</a>
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+					<li class=" tsd-kind-interface tsd-parent-kind-module">
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+</div>
+<footer class="with-border-bottom">
+	<div class="container">
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+		<div class="tsd-legend-group">
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+				<li class="tsd-kind-enum"><span class="tsd-kind-icon">Enumeration</span></li>
+			</ul>
+			<ul class="tsd-legend">
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+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/BE/package-lock.json b/BE/package-lock.json
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+      "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==",
+      "dev": true
     },
     "slice-ansi": {
       "version": "2.1.0",
@@ -5764,6 +5895,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dev": true,
       "requires": {
         "is-number": "^7.0.0"
       }
@@ -5840,12 +5972,14 @@
     "tslib": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
-      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "dev": true
     },
     "tsutils": {
       "version": "3.17.1",
       "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-3.17.1.tgz",
       "integrity": "sha512-kzeQ5B8H3w60nFY2g8cJIuH7JDpsALXySGtwGJ0p2LSjLgay3NdIpqq5SoOBe46bKDW2iq25irHCr8wjomUS2g==",
+      "dev": true,
       "requires": {
         "tslib": "^1.8.1"
       }
@@ -5895,17 +6029,51 @@
         "is-typedarray": "^1.0.0"
       }
     },
+    "typedoc": {
+      "version": "0.19.2",
+      "resolved": "https://registry.npmjs.org/typedoc/-/typedoc-0.19.2.tgz",
+      "integrity": "sha512-oDEg1BLEzi1qvgdQXc658EYgJ5qJLVSeZ0hQ57Eq4JXy6Vj2VX4RVo18qYxRWz75ifAaYuYNBUCnbhjd37TfOg==",
+      "dev": true,
+      "requires": {
+        "fs-extra": "^9.0.1",
+        "handlebars": "^4.7.6",
+        "highlight.js": "^10.2.0",
+        "lodash": "^4.17.20",
+        "lunr": "^2.3.9",
+        "marked": "^1.1.1",
+        "minimatch": "^3.0.0",
+        "progress": "^2.0.3",
+        "semver": "^7.3.2",
+        "shelljs": "^0.8.4",
+        "typedoc-default-themes": "^0.11.4"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "7.3.2",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.2.tgz",
+          "integrity": "sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==",
+          "dev": true
+        }
+      }
+    },
+    "typedoc-default-themes": {
+      "version": "0.11.4",
+      "resolved": "https://registry.npmjs.org/typedoc-default-themes/-/typedoc-default-themes-0.11.4.tgz",
+      "integrity": "sha512-Y4Lf+qIb9NTydrexlazAM46SSLrmrQRqWiD52593g53SsmUFioAsMWt8m834J6qsp+7wHRjxCXSZeiiW5cMUdw==",
+      "dev": true
+    },
     "typescript": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.3.tgz",
       "integrity": "sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==",
       "dev": true
     },
-    "typescript-eslint": {
-      "version": "0.0.1-alpha.0",
-      "resolved": "https://registry.npmjs.org/typescript-eslint/-/typescript-eslint-0.0.1-alpha.0.tgz",
-      "integrity": "sha512-1hNKM37dAWML/2ltRXupOq2uqcdRQyDFphl+341NTPXFLLLiDhErXx8VtaSLh3xP7SyHZdcCgpt9boYYVb3fQg==",
-      "dev": true
+    "uglify-js": {
+      "version": "3.11.4",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.11.4.tgz",
+      "integrity": "sha512-FyYnoxVL1D6+jDGQpbK5jW6y/2JlVfRfEeQ67BPCUg5wfCjaKOpr2XeceE4QL+MkhxliLtf5EbrMDZgzpt2CNw==",
+      "dev": true,
+      "optional": true
     },
     "undefsafe": {
       "version": "2.0.3",
@@ -5954,6 +6122,12 @@
         "crypto-random-string": "^2.0.0"
       }
     },
+    "universalify": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-1.0.0.tgz",
+      "integrity": "sha512-rb6X1W158d7pRQBg5gkR8uPaSfiids68LTJQYOtEUhoJUWBdaQHsuT/EUduxXYxcrt4r5PJ4fuHW1MHT6p0qug==",
+      "dev": true
+    },
     "unset-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unset-value/-/unset-value-1.0.0.tgz",
@@ -6205,6 +6379,12 @@
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
+    "wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
     "wrap-ansi": {
       "version": "6.2.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
diff --git a/BE/package.json b/BE/package.json
index 951c678..075a044 100644
--- a/BE/package.json
+++ b/BE/package.json
@@ -11,7 +11,8 @@
     "prettier:exec": "./node_modules/.bin/prettier --check src",
     "lint:fix": "./node_modules/.bin/eslint --fix src --ext .ts ",
     "lint:exec": "./node_modules/.bin/eslint src --ext .ts",
-    "test": "./node_modules/.bin/jest --passWithNoTests"
+    "test": "./node_modules/.bin/jest --passWithNoTests",
+    "doc": "./node_modules/.bin/typedoc --out docs src/interfaces"
   },
   "repository": {
     "type": "git",
@@ -26,6 +27,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.15",
     "@types/node": "^14.14.2",
+    "@typescript-eslint/parser": "^4.5.0",
     "babel-eslint": "^10.1.0",
     "eslint": "^7.12.0",
     "eslint-config-google": "^0.14.0",
@@ -36,13 +38,13 @@
     "nodemon": "^2.0.6",
     "prettier": "2.1.2",
     "ts-jest": "^26.4.2",
-    "typescript": "^4.0.3",
-    "@typescript-eslint/parser": "^4.5.0"
-
+    "typedoc": "^0.19.2",
+    "typescript": "^4.0.3"
   },
   "husky": {
     "hooks": {
       "pre-commit": "npm run lint && npm run test"
     }
-  }
+  },
+  "dependencies": {}
 }
diff --git a/BE/src/interfaces/interfaces.ts b/BE/src/interfaces/interfaces.ts
new file mode 100644
index 0000000..d78a854
--- /dev/null
+++ b/BE/src/interfaces/interfaces.ts
@@ -0,0 +1,87 @@
+/**
+ * Task describes a single action that should be done by the user.
+ * For example: “Go for a 10 minutes run” or “Go to bed before 11:00 PM”
+ */
+export interface Task {
+    id: number;
+    description: string;
+}
+
+
+/**
+ * Achievement describes a set of several tasks accomplished in the specific way.
+ * For example: “Complete each task 7 days in a row” or “Complete 5 tasks before 8:00 AM”
+ */
+export interface Achievements extends Task {
+    image: Image;
+
+    checkComplete(): Status;
+}
+
+/**
+ * Describes an image type. Contains path to an image and short description
+ */
+export interface Image {
+    path: string;
+    description: string;
+}
+
+/**
+ * Status describes a state of some item (a task or anachievement)
+ * and a timestamp, when this state was updated
+ */
+export interface Status {
+    state: State;
+    updated: Date;
+}
+
+/**
+ * Describe possible states
+ */
+export enum State { Pending = 'Pending', Success = 'Success', Failure = 'Failure'}
+
+/**
+ * Challenge describes a 30-days period, during which randomly
+ * chosen 30 tasks and 5 achievements are assigned for the user.
+ * Starting from the first day, the user will receive a new task every day,
+ * which should be completed before the midnight, overwise it will be marked as failed.
+ * Achievements status is calculated based on tasks completion. After 30 days the
+ * challenge could be successful (>= 90% tasks completed) or failed (<90% tasks completed)
+ */
+export interface Challenge {
+    id: number;
+    state: State;
+    startDate: Date;
+    tasksOrder: Task[];
+    tasksStatus: Status;
+    achievementsStatus: Status;
+}
+
+/**
+ * ActualTask provides information about a task and its current status in scope of the challenge
+ */
+export interface ActualTask extends Task {
+    status: Status;
+}
+
+/**
+ * ArchiveItem describes a task and its status for all past tasks in the challenge
+ */
+export interface ArchiveItem extends ActualTask {
+    challengeId: number
+}
+
+/**
+ ActualAchievement provides information about an achievement and its current
+ status in scope of the challenge
+ */
+export interface ActualAchievement extends ActualTask {
+    image: Image;
+}
+
+/**
+ describe task with status
+ */
+export interface TaskWithStatus extends Task {
+    status: Status;
+}
diff --git a/BE/tsconfig.json b/BE/tsconfig.json
index 2c3e319..d0e4724 100644
--- a/BE/tsconfig.json
+++ b/BE/tsconfig.json
@@ -2,7 +2,10 @@
   "extends": "../tsconfig.base",
   "compilerOptions": {
     "outDir": "dist",
-    "rootDir": "src"
+    "rootDir": "src",
+    "module": "ES6",
+    "target": "ES5",
+    "pretty": true
   },
   "include": ["src/**/*"],
   "exclude": ["**/__tests__/**/*"]
diff --git a/FE/package-lock.json b/FE/package-lock.json
index 5cd19c1..d98bb4a 100644
--- a/FE/package-lock.json
+++ b/FE/package-lock.json
@@ -1500,6 +1500,12 @@
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
       "dev": true
     },
+    "at-least-node": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/at-least-node/-/at-least-node-1.0.0.tgz",
+      "integrity": "sha512-+q/t7Ekv1EDY2l6Gda6LLiX14rU9TV20Wa3ofeQmwPFZbOMo9DXrLbOjFaaclkXKWidIaopwAObQDqwWtGUjqg==",
+      "dev": true
+    },
     "atob": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
@@ -4304,6 +4310,18 @@
         }
       }
     },
+    "fs-extra": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-9.0.1.tgz",
+      "integrity": "sha512-h2iAoN838FqAFJY2/qVpzFXy+EBxfVE220PalAqQLDVsFOHLJrZvut5puAbCdNv6WJk+B8ihI+k0c7JK5erwqQ==",
+      "dev": true,
+      "requires": {
+        "at-least-node": "^1.0.0",
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^1.0.0"
+      }
+    },
     "fs-write-stream-atomic": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz",
@@ -4541,6 +4559,19 @@
       "integrity": "sha512-9Qn4yBxelxoh2Ow62nP+Ka/kMnOXRi8BXnRaUwezLNhqelnN49xKz4F/dPP8OYLxLxq6JDtZb2i9XznUQbNPTg==",
       "dev": true
     },
+    "handlebars": {
+      "version": "4.7.6",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.6.tgz",
+      "integrity": "sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==",
+      "dev": true,
+      "requires": {
+        "minimist": "^1.2.5",
+        "neo-async": "^2.6.0",
+        "source-map": "^0.6.1",
+        "uglify-js": "^3.1.4",
+        "wordwrap": "^1.0.0"
+      }
+    },
     "har-schema": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-2.0.0.tgz",
@@ -4657,6 +4688,12 @@
       "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==",
       "dev": true
     },
+    "highlight.js": {
+      "version": "10.3.2",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-10.3.2.tgz",
+      "integrity": "sha512-3jRT7OUYsVsKvukNKZCtnvRcFyCJqSEIuIMsEybAXRiFSwpt65qjPd/Pr+UOdYt7WJlt+lj3+ypUsHiySBp/Jw==",
+      "dev": true
+    },
     "hmac-drbg": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
@@ -6056,6 +6093,24 @@
         "minimist": "^1.2.0"
       }
     },
+    "jsonfile": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
+      "integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.6",
+        "universalify": "^2.0.0"
+      },
+      "dependencies": {
+        "universalify": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",
+          "integrity": "sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==",
+          "dev": true
+        }
+      }
+    },
     "jsprim": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -6203,6 +6258,12 @@
         "yallist": "^3.0.2"
       }
     },
+    "lunr": {
+      "version": "2.3.9",
+      "resolved": "https://registry.npmjs.org/lunr/-/lunr-2.3.9.tgz",
+      "integrity": "sha512-zTU3DaZaF3Rt9rhN3uBMGQD3dD2/vFQqnvZCDv4dl5iOzq2IZQqTxu90r4E5J+nP70J3ilqVCrbho2eWaeW8Ow==",
+      "dev": true
+    },
     "make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
@@ -6250,6 +6311,12 @@
         "object-visit": "^1.0.0"
       }
     },
+    "marked": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-1.2.2.tgz",
+      "integrity": "sha512-5jjKHVl/FPo0Z6ocP3zYhKiJLzkwJAw4CZoLjv57FkvbUuwOX4LIBBGGcXjAY6ATcd1q9B8UTj5T9Umauj0QYQ==",
+      "dev": true
+    },
     "md5.js": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/md5.js/-/md5.js-1.3.5.tgz",
@@ -7643,6 +7710,15 @@
         "picomatch": "^2.2.1"
       }
     },
+    "rechoir": {
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz",
+      "integrity": "sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=",
+      "dev": true,
+      "requires": {
+        "resolve": "^1.1.6"
+      }
+    },
     "regex-not": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/regex-not/-/regex-not-1.0.2.tgz",
@@ -8379,6 +8455,17 @@
       "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
       "dev": true
     },
+    "shelljs": {
+      "version": "0.8.4",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
+      "integrity": "sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.0.0",
+        "interpret": "^1.0.0",
+        "rechoir": "^0.6.2"
+      }
+    },
     "shellwords": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/shellwords/-/shellwords-0.1.1.tgz",
@@ -9578,12 +9665,44 @@
         "is-typedarray": "^1.0.0"
       }
     },
+    "typedoc": {
+      "version": "0.19.2",
+      "resolved": "https://registry.npmjs.org/typedoc/-/typedoc-0.19.2.tgz",
+      "integrity": "sha512-oDEg1BLEzi1qvgdQXc658EYgJ5qJLVSeZ0hQ57Eq4JXy6Vj2VX4RVo18qYxRWz75ifAaYuYNBUCnbhjd37TfOg==",
+      "dev": true,
+      "requires": {
+        "fs-extra": "^9.0.1",
+        "handlebars": "^4.7.6",
+        "highlight.js": "^10.2.0",
+        "lodash": "^4.17.20",
+        "lunr": "^2.3.9",
+        "marked": "^1.1.1",
+        "minimatch": "^3.0.0",
+        "progress": "^2.0.3",
+        "semver": "^7.3.2",
+        "shelljs": "^0.8.4",
+        "typedoc-default-themes": "^0.11.4"
+      }
+    },
+    "typedoc-default-themes": {
+      "version": "0.11.4",
+      "resolved": "https://registry.npmjs.org/typedoc-default-themes/-/typedoc-default-themes-0.11.4.tgz",
+      "integrity": "sha512-Y4Lf+qIb9NTydrexlazAM46SSLrmrQRqWiD52593g53SsmUFioAsMWt8m834J6qsp+7wHRjxCXSZeiiW5cMUdw==",
+      "dev": true
+    },
     "typescript": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.3.tgz",
       "integrity": "sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==",
       "dev": true
     },
+    "uglify-js": {
+      "version": "3.11.4",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.11.4.tgz",
+      "integrity": "sha512-FyYnoxVL1D6+jDGQpbK5jW6y/2JlVfRfEeQ67BPCUg5wfCjaKOpr2XeceE4QL+MkhxliLtf5EbrMDZgzpt2CNw==",
+      "dev": true,
+      "optional": true
+    },
     "union-value": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
@@ -9620,6 +9739,12 @@
         "imurmurhash": "^0.1.4"
       }
     },
+    "universalify": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-1.0.0.tgz",
+      "integrity": "sha512-rb6X1W158d7pRQBg5gkR8uPaSfiids68LTJQYOtEUhoJUWBdaQHsuT/EUduxXYxcrt4r5PJ4fuHW1MHT6p0qug==",
+      "dev": true
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -11272,6 +11397,12 @@
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
+    "wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
     "worker-farm": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.7.0.tgz",
diff --git a/FE/package.json b/FE/package.json
index 79478ee..8db5def 100644
--- a/FE/package.json
+++ b/FE/package.json
@@ -14,7 +14,8 @@
     "prettier:exec": "./node_modules/.bin/prettier --check src",
     "lint:fix": "./node_modules/.bin/eslint --fix src --ext .ts ",
     "lint:exec": "./node_modules/.bin/eslint src --ext .ts",
-    "test": "./node_modules/.bin/jest"
+    "test": "./node_modules/.bin/jest",
+    "doc": "./node_modules/.bin/typedoc --out docs src/interfaces"
   },
   "repository": {
     "type": "git",
@@ -44,6 +45,7 @@
     "style-loader": "^2.0.0",
     "ts-jest": "^26.4.2",
     "ts-loader": "^8.0.7",
+    "typedoc": "^0.19.2",
     "typescript": "^4.0.3",
     "webpack": "^4.41.3",
     "webpack-cli": "^3.3.10",
@@ -54,5 +56,6 @@
     "hooks": {
       "pre-commit": "npm run lint && npm run test"
     }
-  }
+  },
+  "dependencies": {}
 }
diff --git a/FE/tsconfig.json b/FE/tsconfig.json
index 2c3e319..60ba7a3 100644
--- a/FE/tsconfig.json
+++ b/FE/tsconfig.json
@@ -2,7 +2,11 @@
   "extends": "../tsconfig.base",
   "compilerOptions": {
     "outDir": "dist",
-    "rootDir": "src"
+    "rootDir": "src",
+    "module": "ES6",
+    "target": "ES5",
+    "pretty": true,
+    "jsx": "react"
   },
   "include": ["src/**/*"],
   "exclude": ["**/__tests__/**/*"]