// Deletes all notes in "Top Secret" tasks.
const tasks = rtm.getTasks('name:"Bob\'s Top Secret Notes"');

tasks.forEach(task => {
  task.getNotes().forEach(note => note.delete());
});

console.log('Deleted all notes in %d top secret task(s). Phew!', tasks.length);

// Outputs the author of the longest note.
const tasks = rtm.getTasks('hasNotes:true AND status:incomplete');

let longestNote = null;

tasks.forEach(task => {
  task.getNotes().forEach(note => {
    if (longestNote == null ||
        note.getContent().length > longestNote.getContent().length) {
      longestNote = note;
    }
  });
});

if (longestNote != null) {
  console.log('"%s" is the author of the longest note (%d characters).',
    longestNote.getAuthor().getUsername(), longestNote.getContent().length);
} else {
  console.log('You have no tasks with notes.');
}

// Outputs the content of the oldest note.
const tasks = rtm.getTasks('hasNotes:true');

let oldestTask = null;

tasks.forEach(task => {
  if (oldestTask == null ||
      oldestTask.getCreatedDate().getTime() >
        task.getCreatedDate().getTime()) {
    oldestTask = task;
  }
});

if (oldestTask != null) {
  let oldestNote = null;

  oldestTask.getNotes().forEach(note => {
    if (oldestNote == null ||
        note.getCreatedDate().getTime() <
          oldestNote.getCreatedDate().getTime()) {
      oldestNote = note;
    }
  });

  console.log(
    '---------------Your oldest note---------------\nDate: %s\n\n%s\n\n',
    oldestNote.getCreatedDate(), oldestNote.getContent());
} else {
  console.log('You have no tasks with notes.');
}

// Outputs when your latest note was added.
const tasks = rtm.getTasks('hasNotes:true AND status:incomplete');

let latestNote = null;

tasks.forEach(task => {
  task.getNotes().forEach(note => {
    if (latestNote == null ||
        note.getCreatedDate().getTime() >
          latestNote.getCreatedDate().getTime()) {
      latestNote = note;
    }
  });
});

if (latestNote != null) {
  console.log('Your latest note was created on %s',
    latestNote.getCreatedDate());
} else {
  console.log('You have no tasks with notes.');
}

// Outputs the list of users who edited notes today.
const now = new Date();

const tasks = rtm.getTasks('hasNotes:true AND updated:today"');

const editedNotes = [];

tasks.forEach(task => {
  task.getNotes().forEach(note => {
    if (note.getModifiedDate().getFullYear() === now.getFullYear() &&
        note.getModifiedDate().getMonth() === now.getMonth() &&
        note.getModifiedDate().getDate() === now.getDate()) {
      editedNotes.push(note);
    }
  });
});

if (editedNotes.length === 0) {
  console.log("No one edited notes today.");
} else {
  editedNotes.sort((a, b) =>
    a.getModifiedDate().getTime() - b.getModifiedDate().getTime());
    
  editedNotes.forEach(note => console.log("%s - %s",
    note.getModifiedDate(), note.getLastEditor().getUsername()));
}

// Outputs the number of notes edited today.
const now = new Date();

const tasks = rtm.getTasks('hasNotes:true AND updated:today"');

let count = 0;

tasks.forEach(task => {
  task.getNotes().forEach(note => {
    if (note.getModifiedDate().getFullYear() === now.getFullYear() &&
        note.getModifiedDate().getMonth() === now.getMonth() &&
        note.getModifiedDate().getDate() === now.getDate()) {
      ++count;
    }
  });
});

console.log('You have edited %d note(s) today.', count);

// Changes "bananas" in all notes to "BANANAS".
const tasks = rtm.getTasks('noteContains:bananas');

let count = 0;

tasks.forEach(task => {
  task.getNotes().forEach(note => {
    if (note.getContent().indexOf('bananas') >= 0) {
      note.setContent(note.getContent().replaceAll('bananas', 'BANANAS'));
      ++count;
    }
  });
});

console.log("Updated %d note(s).", count);