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src/models/favorite.ts

@@ -1,5 +1,7 @@
 import * as mongo from 'mongodb';
+import deepcopy = require('deepcopy');
 import db from '../db/mongodb';
+import { pack as packNote } from './note';
 
 const Favorite = db.get<IFavorite>('favorites');
 Favorite.createIndex(['userId', 'noteId'], { unique: true });
@@ -38,3 +40,35 @@ export async function deleteFavorite(favorite: string | mongo.ObjectID | IFavori
 		_id: f._id
 	});
 }
+
+/**
+ * Pack a favorite for API response
+ */
+export const pack = (
+	favorite: any,
+	me: any
+) => new Promise<any>(async (resolve, reject) => {
+	let _favorite: any;
+
+	// Populate the favorite if 'favorite' is ID
+	if (mongo.ObjectID.prototype.isPrototypeOf(favorite)) {
+		_favorite = await Favorite.findOne({
+			_id: favorite
+		});
+	} else if (typeof favorite === 'string') {
+		_favorite = await Favorite.findOne({
+			_id: new mongo.ObjectID(favorite)
+		});
+	} else {
+		_favorite = deepcopy(favorite);
+	}
+
+	// Rename _id to id
+	_favorite.id = _favorite._id;
+	delete _favorite._id;
+
+	// Populate note
+	_favorite.note = await packNote(_favorite.noteId, me);
+
+	resolve(_favorite);
+});