udemy-node-notes/notes.js
2017-11-20 21:59:31 -05:00

64 lines
1.2 KiB
JavaScript

const fs = require('fs');
var fetchNotes = () => {
try {
var notesString = fs.readFileSync('notes-data.json');
return JSON.parse(notesString);
} catch (e) {
console.log("File doesn't exist, making new file.");
return [];
}
}
var saveNotes = (notes) => {
fs.writeFileSync(
'notes-data.json',
JSON.stringify(notes)
);
}
var addNote = (title, body) => {
var notes = fetchNotes();
var note = {
title,
body,
};
var duplicateNotes = notes.filter((note) => note.title === title);
if (duplicateNotes.length === 0) {
notes.push(note);
saveNotes(notes);
console.log(`Added note: ${note.title}`);
console.log("--");
return note;
}
}
var getAll = () => {
return fetchNotes();
}
var getNote = (title) => {
var notes = fetchNotes().filter((note) => note.title === title);
return notes[0];
}
var removeNote = (title) => {
var notes = fetchNotes();
filteredNotes = notes.filter((note) => note.title !== title);
saveNotes(filteredNotes);
return notes.length !== filteredNotes.length;
}
var logNote = (note) => {
console.log(`Title: ${note.title}`);
console.log(`Body: ${note.body}`);
}
module.exports = {
logNote,
addNote,
getAll,
getNote,
removeNote,
}