feat: add trending to discover page

server/routes/discover.ts

@@ -1,8 +1,24 @@
 import { Router } from 'express';
-import TheMovieDb from '../api/themoviedb';
-import { mapMovieResult, mapTvResult } from '../models/Search';
+import TheMovieDb, {
+  TmdbMovieResult,
+  TmdbTvResult,
+  TmdbPersonResult,
+} from '../api/themoviedb';
+import { mapMovieResult, mapTvResult, mapPersonResult } from '../models/Search';
 import Media from '../entity/Media';
 
+const isMovie = (
+  movie: TmdbMovieResult | TmdbTvResult | TmdbPersonResult
+): movie is TmdbMovieResult => {
+  return (movie as TmdbMovieResult).title !== undefined;
+};
+
+const isPerson = (
+  person: TmdbMovieResult | TmdbTvResult | TmdbPersonResult
+): person is TmdbPersonResult => {
+  return (person as TmdbPersonResult).known_for !== undefined;
+};
+
 const discoverRoutes = Router();
 
 discoverRoutes.get('/movies', async (req, res) => {
@@ -80,4 +96,36 @@ discoverRoutes.get('/tv', async (req, res) => {
   });
 });
 
+discoverRoutes.get('/trending', async (req, res) => {
+  const tmdb = new TheMovieDb();
+
+  const data = await tmdb.getAllTrending({
+    page: Number(req.query.page),
+    language: req.query.language as string,
+  });
+
+  const media = await Media.getRelatedMedia(
+    data.results.map((result) => result.id)
+  );
+
+  return res.status(200).json({
+    page: data.page,
+    totalPages: data.total_pages,
+    totalResults: data.total_results,
+    results: data.results.map((result) =>
+      isMovie(result)
+        ? mapMovieResult(
+            result,
+            media.find((req) => req.tmdbId === result.id)
+          )
+        : isPerson(result)
+        ? mapPersonResult(result)
+        : mapTvResult(
+            result,
+            media.find((req) => req.tmdbId === result.id)
+          )
+    ),
+  });
+});
+
 export default discoverRoutes;