feat(route): ✨ add delete route for chapters

src/config/routes/books/chapters/delete.ts

@@ -0,0 +1,33 @@
+import { FastifyInstance } from 'fastify'
+
+import { RequestGeneric } from '#config/typing/requests'
+import ChapterDeleteHelper from '#helpers/routes/ChapterDeleteHelper'
+import SharedHelper from '#helpers/shared'
+
+async function _delete(fastify: FastifyInstance) {
+	fastify.delete<RequestGeneric>('/books/:asin/chapters', async (request, reply) => {
+		// Setup common helper first
+		const commonHelpers = new SharedHelper()
+		// First, check ASIN validity
+		if (!commonHelpers.checkAsinValidity(request.params.asin)) {
+			reply.code(400)
+			throw new Error('Bad ASIN')
+		}
+
+		// Setup helper
+		const { redis } = fastify
+		const helper = new ChapterDeleteHelper(request.params.asin, redis)
+
+		// Call helper handler
+		const isHandled = await helper.handler()
+
+		if (!isHandled) {
+			reply.code(404)
+			throw new Error(`${request.params.asin} not found in the database`)
+		}
+
+		return { message: `${request.params.asin} deleted` }
+	})
+}
+
+export default _delete

src/helpers/routes/ChapterDeleteHelper.ts

@@ -0,0 +1,49 @@
+import { FastifyRedis } from '@fastify/redis'
+
+import { ChapterDocument } from '#config/models/Chapter'
+import PaprAudibleChapterHelper from '#helpers/database/audible/PaprAudibleChapterHelper'
+import RedisHelper from '#helpers/database/RedisHelper'
+
+export default class ChapterDeleteHelper {
+	asin: string
+	paprHelper: PaprAudibleChapterHelper
+	redisHelper: RedisHelper
+	originalChapter: ChapterDocument | null = null
+	constructor(asin: string, redis: FastifyRedis | null) {
+		this.asin = asin
+		this.paprHelper = new PaprAudibleChapterHelper(this.asin, {
+			update: undefined
+		})
+		this.redisHelper = new RedisHelper(redis, 'chapter', this.asin)
+	}
+
+	async getChaptersFromPapr(): Promise<ChapterDocument | null> {
+		return (await this.paprHelper.findOne()).data
+	}
+
+	/**
+	 * Actions to run when a deletion is requested
+	 */
+	async deleteActions() {
+		// 1. Delete the chapter from cache
+		await this.redisHelper.deleteOne()
+
+		// 2. Delete the chapter from DB
+		return (await this.paprHelper.delete()).modified
+	}
+
+	/**
+	 * Main handler for the chapter delete route
+	 */
+	async handler() {
+		this.originalChapter = await this.getChaptersFromPapr()
+
+		// If the chapter is already present
+		if (this.originalChapter) {
+			return this.deleteActions()
+		}
+
+		// If the chapter is not present
+		return false
+	}
+}

src/server.ts

@@ -9,6 +9,7 @@ import { initialize } from '#config/papr'
 import deleteAuthor from '#config/routes/authors/delete'
 import searchAuthor from '#config/routes/authors/search/show'
 import showAuthor from '#config/routes/authors/show'
+import deleteChapter from '#config/routes/books/chapters/delete'
 import showChapter from '#config/routes/books/chapters/show'
 import deleteBook from '#config/routes/books/delete'
 import showBook from '#config/routes/books/show'
@@ -25,8 +26,9 @@ const server = fastify({
 // Register routes
 server
 	.register(showBook)
-	.register(showChapter)
 	.register(deleteBook)
+	.register(showChapter)
+	.register(deleteChapter)
 	.register(showAuthor)
 	.register(deleteAuthor)
 	.register(searchAuthor)