feat: add collections (#484)

closes #418

server/routes/collection.ts

@@ -0,0 +1,27 @@
+import { Router } from 'express';
+import TheMovieDb from '../api/themoviedb';
+import Media from '../entity/Media';
+import { mapCollection } from '../models/Collection';
+
+const collectionRoutes = Router();
+
+collectionRoutes.get<{ id: string }>('/:id', async (req, res, next) => {
+  const tmdb = new TheMovieDb();
+
+  try {
+    const collection = await tmdb.getCollection({
+      collectionId: Number(req.params.id),
+      language: req.query.language as string,
+    });
+
+    const media = await Media.getRelatedMedia(
+      collection.parts.map((part) => part.id)
+    );
+
+    return res.status(200).json(mapCollection(collection, media));
+  } catch (e) {
+    return next({ status: 404, message: 'Collection does not exist' });
+  }
+});
+
+export default collectionRoutes;

server/routes/index.ts

@@ -12,6 +12,7 @@ import movieRoutes from './movie';
 import tvRoutes from './tv';
 import mediaRoutes from './media';
 import personRoutes from './person';
+import collectionRoutes from './collection';
 
 const router = Router();
 
@@ -34,6 +35,7 @@ router.use('/movie', isAuthenticated(), movieRoutes);
 router.use('/tv', isAuthenticated(), tvRoutes);
 router.use('/media', isAuthenticated(), mediaRoutes);
 router.use('/person', isAuthenticated(), personRoutes);
+router.use('/collection', isAuthenticated(), collectionRoutes);
 router.use('/auth', authRoutes);
 
 router.get('/', (_req, res) => {