feat: adds joseph_caballero_loader.ts and modifies loaders.module.ts for lesson_10 homework -Joseph Caballero

lesson_10/libraries/src/loaders/joseph_caballero_loader.ts

@@ -0,0 +1,86 @@
+import fs from 'fs';
+import { Credit, MediaItem, MediaType, Role } from '../models/index.js';
+import { Loader } from './loader.js';
+
+export class JosephCaballeroLoader implements Loader {
+  getLoaderName(): string {
+    return 'josephcaballero';
+  }
+
+  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`,
+    );
+    mediaItems.forEach((item) => {
+      credits.forEach((id) => {
+        if (id.getMediaItemId() == item.getId()) {
+          item.addCredit(id);
+        }
+      });
+    });
+
+    return [...mediaItems.values()];
+  }
+
+  async loadMediaItems(): Promise<MediaItem[]> {
+    // TODO: Implement this method.
+    const items = [];
+    const load = fs
+      .readFileSync('data/media_items.csv', {
+        encoding: 'utf-8',
+      })
+      .split('\n')
+      .map((row: string): string[] => {
+        return row.split(',');
+      });
+    load.splice(0, 1);
+    interface arrayObj {
+      id: string;
+      title: string;
+      type: MediaType.Documentary | MediaType.Movie | MediaType.TVShow;
+      year: number;
+    }
+    const obj: arrayObj[] = load.map((row: string[]): arrayObj => {
+      return {
+        id: row[0],
+        title: row[2],
+        type: row[1] as MediaType,
+        year: Number(row[4]),
+      };
+    });
+    for await (const row of obj) {
+      const { id, type, title, year } = row;
+      items.push(new MediaItem(id, title, type, year, []));
+    }
+    return items;
+  }
+
+  async loadCredits(): Promise<Credit[]> {
+    const credits = [];
+    const load = fs
+      .readFileSync('data/media_items.csv', {
+        encoding: 'utf-8',
+      })
+      .split('\n')
+      .map((row: string): string[] => {
+        return row.split(',');
+      });
+    load.splice(0, 1);
+    interface arrayObj {
+      media_Item_Id: string;
+      type: string;
+      role: Role;
+    }
+    const obj: arrayObj[] = load.map((row: string[]): arrayObj => {
+      return { media_Item_Id: row[0], type: row[1], role: row[2] as Role };
+    });
+    for await (const row of obj) {
+      const { media_Item_Id, type, role } = row;
+      credits.push(new Credit(media_Item_Id, type, role));
+    }
+    return credits;
+  }
+}

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

@@ -4,6 +4,7 @@ import { AnthonyMaysLoader } from './anthony_mays_loader.js';
 import { DavidSmithLoader } from './david_smith_loader.js';
 import { DwightBlueLoader } from './dwight_blue_loader.js';
 import { JamesCapparellLoader } from './james_capparell_loader.js';
+import { JosephCaballeroLoader } from './joseph_caballero_loader.js';
 import { NileJacksonLoader } from './nile_jackson_loader.js';
 import { PabloLimonParedesLoader } from './pablo_limon_paredes_loader.js';
 import { XavierCruzLoader } from './xavier_cruz_loader.js';
@@ -18,6 +19,7 @@ const LOADER_PROVIDERS = [
   DavidSmithLoader,
   DwightBlueLoader,
   JamesCapparellLoader,
+  JosephCaballeroLoader,
   NileJacksonLoader,
   PabloLimonParedesLoader,
   XavierCruzLoader,