feat: use cases de processamento de documento WEB e PDF

Author: renanjava

src/application/common/utils/http-service.interface.ts

@@ -0,0 +1,3 @@
+export interface IHttpService {
+  get(url: string)
+}

src/application/common/utils/pdf-processing.interface.ts

@@ -0,0 +1,3 @@
+export interface IPdfProcessing {
+  parse(file: Buffer<ArrayBufferLike>)
+}

src/application/common/utils/rxjs.interface.ts

@@ -0,0 +1,3 @@
+export interface IRxjs {
+  lastValueFrom(axiosResponseUrl: any): Promise<any>
+}

src/application/common/utils/web-processing.interface.ts

@@ -0,0 +1,3 @@
+export interface IWebProcessing {
+  load(responseData: any)
+}

src/application/controllers/auth-controller.interface.ts

@@ -1,4 +1,4 @@
-import { AcessToken } from '../services/acess-token.interface'
+import { AcessToken } from '@/application/services/acess-token.interface'
 
 export interface IAuthController<T> {
   login(data: T): Promise<AcessToken>

src/application/errors/documents/documento-conteudo-invalido.error.ts

@@ -0,0 +1,6 @@
+export class DocumentoConteudoInvalidoError extends Error {
+  constructor() {
+    super('Documento não contém conteúdo válido')
+    this.name = 'DocumentoConteudoInvalidoException'
+  }
+}

src/application/errors/documents/documento-pdf-invalido.error.ts

@@ -0,0 +1,8 @@
+export class DocumentoPdfInvalidoError extends Error {
+  constructor(tipoDocumento: string) {
+    super(
+      `O arquivo enviado não é um PDF válido. Tipo recebido: ${tipoDocumento}`,
+    )
+    this.name = 'DocumentoPdfInvalidoException'
+  }
+}

src/application/errors/documents/documento-titulo-invalido.error.ts

@@ -0,0 +1,6 @@
+export class DocumentoTituloInvalidoError extends Error {
+  constructor() {
+    super('Documento não contém título válido')
+    this.name = 'DocumentoTituloInvalidoError'
+  }
+}

src/application/services/jwt-service.interface.ts

@@ -1,4 +1,4 @@
-import { UserPayload } from '../controllers/user-payload.props'
+import { UserPayload } from '@/application/controllers/user-payload.props'
 
 export interface IJwtService {
   signAsync(payload: UserPayload): Promise<string>

src/application/usecases/documents/pdf-processing.use-case.ts

@@ -0,0 +1,29 @@
+import { IPdfProcessing } from '@/application/common/utils/pdf-processing.interface'
+import { DocumentoConteudoInvalidoError } from '@/application/errors/documents/documento-conteudo-invalido.error'
+import { DocumentoPdfInvalidoError } from '@/application/errors/documents/documento-pdf-invalido.error'
+import { DocumentoTituloInvalidoError } from '@/application/errors/documents/documento-titulo-invalido.error'
+import { ExtractedDocumentProps } from '@/application/services/extracted-document.props'
+import { IUseCase } from '@/application/usecases/use-case.interface'
+
+export class PdfProcessingUseCase implements IUseCase {
+  constructor(private readonly pdfProcessing: IPdfProcessing) {}
+  async execute(file: Express.Multer.File): Promise<ExtractedDocumentProps> {
+    if (!file.mimetype || file.mimetype !== 'application/pdf') {
+      throw new DocumentoPdfInvalidoError(file.mimetype)
+    }
+
+    const data = await this.pdfProcessing.parse(file.buffer)
+    const title = data.info.Title || 'Título não encontrado'
+    const content = data.text
+
+    if (!content || content.trim() === '') {
+      throw new DocumentoConteudoInvalidoError()
+    }
+
+    if (!title || title.trim() === 'Título não encontrado') {
+      throw new DocumentoTituloInvalidoError()
+    }
+
+    return { title, content } as ExtractedDocumentProps
+  }
+}