feat: Adding lesson10 - load media item implementation by Yemi (#333)

* feat: Adding homework10 - load media item implementation - Yemi

* feat: updated homework10 - removed all comments by Yemi

---------

Co-authored-by: Anthony D. Mays <[email protected]>

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

@@ -11,6 +11,7 @@ import { JamesCapparellLoader } from './james_capparell_loader.js';
 import { JosephCaballeroLoader } from './joseph_caballero_loader.js';
 import { KimberleeHaldaneLoader } from './kimberlee_haldane_loader.js';
 import { NileJacksonLoader } from './nile_jackson_loader.js';
+import { OyeyemiJimohLoader } from './oyeyemi_jimoh_loader.js';
 import { PabloLimonParedesLoader } from './pablo_limon_paredes_loader.js';
 import { ShawnDunsmoreLoader } from './shawn_dunsmore_loader.js';
 import { TommyTranLoader } from './tommy_tran_loader.js';
@@ -20,7 +21,6 @@ import { ZionBuchananLoader } from './zion_buchanan_loader.js';
 
 export const Loaders = Symbol.for('Loaders');
 
-// Add your quiz provider here.
 const LOADER_PROVIDERS = [
   AmiyahJonesLoader,
   AngelicaCastilloLoader,
@@ -33,6 +33,7 @@ const LOADER_PROVIDERS = [
   JosephCaballeroLoader,
   KimberleeHaldaneLoader,
   NileJacksonLoader,
+  OyeyemiJimohLoader,
   PabloLimonParedesLoader,
   ShawnDunsmoreLoader,
   TommyTranLoader,

lesson_10/libraries/src/loaders/oyeyemi_jimoh_loader.ts

@@ -0,0 +1,45 @@
+import csv from 'csv-parser';
+import fs from 'fs';
+import { Credit, MediaItem } from '../models/index.js';
+import { Loader } from './loader.js';
+
+export class OyeyemiJimohLoader implements Loader {
+  getLoaderName(): string {
+    return 'oyeyemijimoh';
+  }
+
+  async loadData(): Promise<MediaItem[]> {
+    const credits = await this.loadCredits();
+    const mediaItems = await this.loadMediaItems();
+
+    console.log(
+      `Loaded ${credits.length} credits and ${mediaItems.length} media items`,
+    );
+
+    return [...mediaItems.values()];
+  }
+
+  async loadMediaItems(): Promise<MediaItem[]> {
+    const mediaItems = [];
+    const readable = fs
+      .createReadStream('data/media_items.csv', 'utf-8')
+      .pipe(csv());
+    for await (const row of readable) {
+      const { id, type, title, year } = row;
+      mediaItems.push(new MediaItem(id, title, type, year, []));
+    }
+    return mediaItems;
+  }
+
+  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;
+  }
+}