notes.js

const chalk = require('chalk');
const fs = require('fs');

const listNotes = () => {
    const notes = loadNotes();

    console.log(chalk.blue.inverse('Your notes:'));

    return notes.forEach( (note) => console.log(chalk.blue(note.title)))
}

const addNote = (title, body) => {
    const notes = loadNotes();
    const duplicateNote = notes.find((note) => note.title === title)

    if (!duplicateNote) {
        notes.push({
            title: title,
            body: body
        });
    
        saveNotes(notes);
        console.log(chalk.green.inverse('New note added!'))
    } else {
        console.log(chalk.red.inverse('Note title taken....'))
    }
}

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


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

const removeNote = (title) => {
    const notes = loadNotes();
    const notesToKeep = notes.filter( (note) => note.title !== title)

    if (notes.length > notesToKeep.length) {
        console.log(chalk.green.inverse('Note Removed!'))
        saveNotes(notesToKeep);
    } else {
        console.log(chalk.red.inverse('No note found!'))
    }
}

const readNote = (title) => {
    const notes = loadNotes();
    const noteToRead = notes.find((note) => note.title === title)
    if (!noteToRead) {
        console.log(chalk.red.inverse('NOTE NOT FOUND'))
    } else {
        console.log(chalk.magenta.inverse(noteToRead.title))
        console.log(chalk.magenta(noteToRead.body))
    }

}

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