notes.js

const fs=require("fs")
const chalk=require("chalk")

const addNote=(title,body)=>{     
     const notes=loadNotes();
     const duplicateNotes=notes.filter((note)=>(note.title===title));
     if(duplicateNotes.length===0){

        notes.push((
            {
                title:title,
                body: body
            }
        ))
        saveNotes(notes);
        console.log(chalk.green.inverse("Note added"));
     }else  {
         console.log(chalk.red.inverse("Note Title Taken!"));
     }
}

const loadNotes=function(){
    try{
        const databuffer=fs.readFileSync('notes.json');
        const dataJSON=databuffer.toString();
        return JSON.parse(dataJSON);
    }catch(e){
        return [];
    }
} 


const saveNotes=(notes)=>{
    const dataJSON=JSON.stringify(notes);
    fs.writeFileSync("notes.json",dataJSON);
}

const removeNote=(title)=>{
    const notes=loadNotes();
    const duplicateNote=notes.find((note)=>(note.title!==title));
   if(!duplicateNote)
   {
    saveNotes(notes);
    console.log(chalk.green.inverse("Note Removed!"));
   }
   else  
   {
    console.log(chalk.red.inverse("No Note found!"));
   }
}


const listNotes=()=>{
     const nodes=loadNotes();
     console.log(chalk.green.inverse("Your Notes!"));
     nodes.forEach(note => {
        console.log(note.title);  
     });
}

const readNote=(title)=>{
    const notes=loadNotes();
    const foundNote=notes.find((note)=>(note.title===title));
   if(foundNote)
   {
    //saveNotes(notes);
    console.log(chalk.green.inverse("Title :"+foundNote.title));
    console.log("Summary: "+foundNote.body);
   }
   else  
   {
    console.log(chalk.red.inverse("No Note found!"));
   }

}


module.exports={
    getNotes: getNotes,
    addNote : addNote,
    removeNote : removeNote,
    listNotes : listNotes,
    readNote: readNote
};