class DiscussionModel {
  constructor (discussionId) {
    this.id = discussionId;
    this.notes = {};
    this.loading = false;
    this.canResolve = false;
  }

  createNote (noteId, canResolve, resolved, resolved_by) {
    Vue.set(this.notes, noteId, new NoteModel(this.id, noteId, canResolve, resolved, resolved_by));
  }

  deleteNote (noteId) {
    Vue.delete(this.notes, noteId);
  }

  getNote (noteId) {
    return this.notes[noteId];
  }

  notesCount() {
    return Object.keys(this.notes).length;
  }

  isResolved () {
    for (const noteId in this.notes) {
      const note = this.notes[noteId];

      if (!note.resolved) {
        return false;
      }
    }
    return true;
  }

  resolveAllNotes (resolved_by) {
    for (const noteId in this.notes) {
      const note = this.notes[noteId];

      if (!note.resolved) {
        note.resolved = true;
        note.resolved_by = resolved_by;
      }
    }
  }

  unResolveAllNotes () {
    for (const noteId in this.notes) {
      const note = this.notes[noteId];

      if (note.resolved) {
        note.resolved = false;
        note.resolved_by = null;
      }
    }
  }

  updateHeadline (data) {
    const $discussionHeadline = $(`.discussion[data-discussion-id="${this.id}"] .js-discussion-headline`);

    if (data.discussion_headline_html) {
      if ($discussionHeadline.length) {
        $discussionHeadline.replaceWith(data.discussion_headline_html);
      } else {
        $(`.discussion[data-discussion-id="${this.id}"] .discussion-header`).append(data.discussion_headline_html);
      }
    } else {
       $discussionHeadline.remove();
    }
  }

  isResolvable () {
    if (!this.canResolve) {
      return false;
    }
    
    for (const noteId in this.notes) {
      const note = this.notes[noteId];

      if (note.canResolve) {
        return true;
      }
    }

    return false;
  }
}