add query to save profile data

relates #36

src/model/queries/saveProfileData.js

@@ -0,0 +1,78 @@
+const dbConnection = require('../database/db_connection');
+
+const toResObj = res => res[0];
+
+const addFacCode = codeName => dbConnection.query(
+  'INSERT INTO fac_code (code) VALUES ($1) RETURNING id',
+  [codeName],
+).then(toResObj);
+
+const makeFacCodeName = (facCampus, facNumber) => {
+  const prefix = {
+    london: 'FAC',
+    nazareth: 'FACN',
+    gaza: 'FACG',
+  }[facCampus.toLowerCase()];
+  return `${prefix}${facNumber}`;
+};
+
+const getFacCodeID = (facCampus, facNumber) => {
+  const codeName = makeFacCodeName(facCampus, facNumber);
+  return dbConnection.query('SELECT id FROM fac_code WHERE code = $1', [codeName])
+    .then(res => res[0] || addFacCode(codeName))
+    .then(o => o.id);
+};
+
+const updateMemberGetID = (obj, facCodeID, githubID) => dbConnection.query(`
+    UPDATE members
+    SET full_name = $/full_name/,
+        github_handle = $/github_handle/,
+        fac_campus = $/fac_campus/,
+        fac_code_id = $/facCodeID/,
+        linkedin_url = $/linkedin_url/,
+        twitter_handle = $/twitter_handle/
+    WHERE github_id = $/githubID/ RETURNING id
+    `, { ...obj, facCodeID, githubID })
+  .then(toResObj)
+  .then((res) => {
+    const o = {};
+    o.member_id = res.id;
+    return o;
+  });
+
+const addTechStack = name => dbConnection.query(
+  'INSERT INTO tech_stack (tech) VALUES ($1) RETURNING id',
+  [name],
+).then(toResObj);
+
+const getTechStackID = tech => dbConnection.query(
+  'SELECT id FROM tech_stack WHERE tech = $1',
+  [tech],
+)
+  .then(res => res[0] || addTechStack(tech))
+  .then((res) => {
+    const o = {};
+    o.stack_id = res.id;
+    return o;
+  });
+
+const promiseAllResultToObj = arr => arr.reduce((acc, curr) => Object.assign(acc, curr), {});
+
+const addMemberTechStack = idObj => dbConnection.query(
+  'INSERT INTO member_tech_stack ($/this:name/) VALUES ($/this:csv/) RETURNING *',
+  idObj,
+)
+  .then(toResObj);
+
+
+// module.exports = saveProfileData;
+module.exports = (dataObj, githubID) => {
+  const objClone = JSON.parse(JSON.stringify(dataObj));
+  return getFacCodeID(objClone.fac_campus, objClone.fac_number)
+    .then(facCodeID => Promise.all([
+      updateMemberGetID(objClone, facCodeID, githubID),
+      getTechStackID(objClone.tech_stack),
+    ]))
+    .then(promiseAllResultToObj)
+    .then(addMemberTechStack);
+};