notes.js

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

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

  if (!duplicateNote) {
    notes.push({
      title,
      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 listNotes = () => {
  const notes = loadNotes();
  console.log(chalk.yellow("Your notes"));
  notes.forEach((note) => console.log(note.title));
};

const readNotes = (title) => {
  const notes = loadNotes();
  const noteToRead = notes.find((note) => note.title === title);
  if (noteToRead) {
    console.log(chalk.yellow.inverse(noteToRead.title));
    console.log(noteToRead.body);
  } else {
    console.log(chalk.red.inverse("Note not find"));
  }
};

module.exports = { addNote, removeNote, listNotes, readNotes };