feat: add find books use case

src/core/book/application/find-books.use-case.ts

@@ -0,0 +1,18 @@
+import Books from '@/core/book/domain/services/book.repository'
+
+import { FindBookResponse } from './types'
+
+export default class FindBooksUseCase {
+  constructor(private readonly booksRepository: Books) {}
+
+  async with(): Promise<FindBookResponse[]> {
+    const books = await this.booksRepository.findAll()
+
+    return books.map((book) => ({
+      authors: book.authors,
+      id: book.id,
+      image: book.image,
+      title: book.tittle,
+    }))
+  }
+}

src/core/book/application/types.ts

@@ -4,3 +4,6 @@ export interface FindBookResponse {
   image: string
   title: string
 }
+export class FindBooksCommand {
+  constructor() {}
+}

src/core/book/domain/services/book.repository.ts

@@ -2,7 +2,7 @@ import Book from '@/core/book/domain/model/book.entity'
 
 export default interface Books {
   // Finds a user by email
-  findAll(): Promise<Book[] | null>
+  findAll(): Promise<Book[]>
 
   // Saves a user
   save(user: Book): Promise<void>