Feat : Lesson-10 adding Yafiah Loader provider

lesson_10/libraries/src/loaders/loaders.module.ts

@@ -15,12 +15,12 @@ import { PabloLimonParedesLoader } from './pablo_limon_paredes_loader.js';
 import { ShawnDunsmoreLoader } from './shawn_dunsmore_loader.js';
 import { TommyTranLoader } from './tommy_tran_loader.js';
 import { XavierCruzLoader } from './xavier_cruz_loader.js';
+import { YafiahAbdullahLoader } from './yafiah_abdullah_loader.js';
 import { ZionBuchananLoader } from './zion_buchanan_loader.js';
 
 export const Loaders = Symbol.for('Loaders');
 
 // Add your quiz provider here.
-
 const LOADER_PROVIDERS = [
   AmiyahJonesLoader,
   AngelicaCastilloLoader,
@@ -37,6 +37,7 @@ const LOADER_PROVIDERS = [
   ShawnDunsmoreLoader,
   TommyTranLoader,
   XavierCruzLoader,
+  YafiahAbdullahLoader,
   ZionBuchananLoader,
 ];
 

lesson_10/libraries/src/loaders/yafiah_abdullah_loader.ts

@@ -0,0 +1,47 @@
+import csv from 'csv-parser';
+import fs from 'fs';
+import { Credit, MediaItem } from '../models/index.js';
+import { Loader } from './loader.js';
+
+export class YafiahAbdullahLoader implements Loader {
+  getLoaderName(): string {
+    return 'yafiahabdullah';
+  }
+
+  async loadData(): Promise<MediaItem[]> {
+    const [credits, mediaItems] = await Promise.all([
+      this.loadCredits(),
+      this.loadMediaItems(),
+    ]);
+
+    console.log(
+      `Loaded ${credits.length} credits and ${mediaItems.length} media items`,
+    );
+
+    return [...mediaItems.values()];
+  }
+
+  async loadMediaItems(): Promise<MediaItem[]> {
+    const media = [];
+    const readable = fs
+      .createReadStream('data/media_items.csv', 'utf-8')
+      .pipe(csv());
+    for await (const row of readable) {
+      const { id, type, title, year } = row;
+      media.push(new MediaItem(id, title, type, year, []));
+    }
+    return media;
+  }
+
+  async loadCredits(): Promise<Credit[]> {
+    const credits = [];
+    const readable = fs
+      .createReadStream('data/credits.csv', 'utf-8')
+      .pipe(csv());
+    for await (const row of readable) {
+      const { media_item_id, role, name } = row;
+      credits.push(new Credit(media_item_id, name, role));
+    }
+    return credits;
+  }
+}