refactor: collection controllers and service

app/collections/services/collection_service.ts

@@ -0,0 +1,70 @@
+import { Visibility } from '#collections/enums/visibility';
+import Collection from '#collections/models/collection';
+import { HttpContext } from '@adonisjs/core/http';
+import db from '@adonisjs/lucid/services/db';
+
+type CreateCollectionPayload = {
+	name: string;
+	description: string | null;
+	visibility: Visibility;
+};
+
+type UpdateCollectionPayload = CreateCollectionPayload;
+
+export class CollectionService {
+	async getCollectionById(id: Collection['id']) {
+		const context = this.getAuthContext();
+		return await Collection.query()
+			.where('id', id)
+			.andWhere('author_id', context.auth.user!.id)
+			.firstOrFail();
+	}
+
+	async getCollectionsByAuthorId() {
+		const context = this.getAuthContext();
+		return await Collection.query()
+			.where('author_id', context.auth.user!.id)
+			.orderBy('created_at')
+			.preload('links');
+	}
+
+	async getTotalCollectionsCount() {
+		const totalCount = await db.from('collections').count('* as total');
+		return Number(totalCount[0].total);
+	}
+
+	createCollection(payload: CreateCollectionPayload) {
+		const context = this.getAuthContext();
+		return Collection.create({
+			...payload,
+			authorId: context.auth.user!.id,
+		});
+	}
+
+	async updateCollection(
+		id: Collection['id'],
+		payload: UpdateCollectionPayload
+	) {
+		const context = this.getAuthContext();
+		return await Collection.query()
+			.where('id', id)
+			.andWhere('author_id', context.auth.user!.id)
+			.update(payload);
+	}
+
+	deleteCollection(id: Collection['id']) {
+		const context = this.getAuthContext();
+		return Collection.query()
+			.where('id', id)
+			.andWhere('author_id', context.auth.user!.id)
+			.delete();
+	}
+
+	getAuthContext() {
+		const context = HttpContext.getOrFail();
+		if (!context.auth.user || !context.auth.user.id) {
+			throw new Error('User not authenticated');
+		}
+		return context;
+	}
+}