diff --git a/lesson_10/libraries/src/loaders/loaders.module.ts b/lesson_10/libraries/src/loaders/loaders.module.ts index 511f6294f..378260dd5 100644 --- a/lesson_10/libraries/src/loaders/loaders.module.ts +++ b/lesson_10/libraries/src/loaders/loaders.module.ts @@ -12,6 +12,7 @@ import { MercedesMathewsLoader } from './mercedes_mathews_loader.js'; import { RasheedMillerLoader } from './rasheed_miller_loader.js'; import { MontezBLoader } from './montez_b_loaders.js'; import { JasonWatsonLoader } from './jason_watson_loader.js'; +import { OliviaJamesLoader } from './olivia_james_loader.js'; export const Loaders = Symbol.for('Loaders'); @@ -28,7 +29,8 @@ const LOADER_PROVIDERS = [ KarenAlabiLoader, RasheedMillerLoader, DavidAdenaikeLoader, - MontezBLoader + MontezBLoader, + OliviaJamesLoader ]; @Module({ diff --git a/lesson_10/libraries/src/loaders/olivia_james_loader.ts b/lesson_10/libraries/src/loaders/olivia_james_loader.ts new file mode 100644 index 000000000..4d4b41f28 --- /dev/null +++ b/lesson_10/libraries/src/loaders/olivia_james_loader.ts @@ -0,0 +1,53 @@ +import csv from 'csv-parser'; +import fs from 'fs'; +import { Credit, MediaItem } from '../models/index.js'; +import { Loader } from './loader.js'; + + +export class OliviaJamesLoader implements Loader { + getLoaderName(): string { + return 'oliviajames'; + } + + + async loadData(): Promise { + 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 { + const Media = []; + const readable = fs + + + .createReadStream('data/media_items.csv', 'utf-8') + .pipe(csv()); + for await (const row of readable) { + const { id, title, type, year } = row; + Media.push(new MediaItem(id, title, type, year, [])); + } + return Media; + } + + + async loadCredits(): Promise { + 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; + } +}