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46 changes: 46 additions & 0 deletions lesson_10/libraries/src/loaders/evan_philakhong_loader.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@
import csv from 'csv-parser';
import fs from 'fs';
import { Credit, MediaItem } from '../models/index.js';
import { Loader } from './loader.js';

export class EvanPhilakhongLoader implements Loader {
getLoaderName(): string {
return 'evanphilakhong';
}

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;
}
}
2 changes: 2 additions & 0 deletions lesson_10/libraries/src/loaders/loaders.module.ts
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ import { KarenAlabiLoader } from './karen_alabi_loader.js';
import { MercedesMathewsLoader } from './mercedes_mathews_loader.js';
import { RasheedMillerLoader } from './rasheed_miller_loader.js';
import { MontezBLoader } from './montez_b_loaders.js';
import { EvanPhilakhongLoader } from './evan_philakhong_loader.js';
import { JasonWatsonLoader } from './jason_watson_loader.js';
import { OliviaJamesLoader } from './olivia_james_loader.js';

Expand All @@ -30,6 +31,7 @@ const LOADER_PROVIDERS = [
JBeyLoader,
JustinEklundLoader,
MercedesMathewsLoader,
EvanPhilakhongLoader,
JasonWatsonLoader,
KarenAlabiLoader,
RasheedMillerLoader,
Expand Down