import { Documents, Prisma } from "@prisma/client";
import { Document } from "le-coffre-resources/dist/Admin";
import DocumentsRepository from "@Repositories/DocumentsRepository";
import BaseService from "@Services/BaseService";
import { Service } from "typedi";
import FilesRepository from "@Repositories/FilesRepository";

@Service()
export default class DocumentsService extends BaseService {
	constructor(private documentsRepository: DocumentsRepository, private filesRepository: FilesRepository) {
		super();
	}

	/**
	 * @description : Get all documents
	 * @throws {Error} If documents cannot be get
	 */
	public async get(query: Prisma.DocumentsFindManyArgs) {
		return this.documentsRepository.findMany(query);
	}

	/**
	 * @description : Create a new document
	 * @throws {Error} If document cannot be created
	 */
	public async create(document: Document): Promise<Documents> {
		return this.documentsRepository.create(document);
	}

	/**
	 * @description : Create new documents
	 * @throws {Error} If documents or one of them cannot be created
	 */
	public async createMany(documents: Document[]): Promise<Documents[]> {
		return this.documentsRepository.createMany(documents);
	}

	/**
	 * @description : Modify a document
	 * @throws {Error} If document cannot be modified
	 */
	public async update(uid: string, document: Partial<Document>): Promise<Documents> {
		return this.documentsRepository.update(uid, document);
	}

	public async refuse(uid: string, document: Partial<Document>, refused_reason: string): Promise<Documents> {
		if (document.files) {
			for (let i = 0; i < document.files.length; i++) {
				await this.filesRepository.deleteKeyAndArchive(document.files[i]?.uid as string);
			}
		}

		return this.documentsRepository.refuse(uid, refused_reason);
	}

	/**
	 * @description : Delete a document
	 * @throws {Error} If document cannot be deleted
	 */
	public async delete(uid: string): Promise<Documents> {
		const documentEntity = await this.documentsRepository.findOneByUid(uid, { files: true });
		if (!documentEntity) throw new Error("document not found");
		const document = Document.hydrate<Document>(documentEntity, { strategy: "excludeAll" });

		const isDocumentEmpty = document.files && !document!.files.find((file) => file.archived_at === null);
		
		if (!isDocumentEmpty) {
			throw new Error("Can't delete a document with file");
		}
		return this.documentsRepository.delete(uid);
	}

	/**
	 * @description : Get a document by uid
	 * @throws {Error} If document cannot be get by uid
	 */
	public async getByUid(uid: string, query?: Prisma.DocumentsInclude): Promise<Documents | null> {
		return this.documentsRepository.findOneByUid(uid, query);
	}

	/**
	 * @description : Get a document by uid
	 * @throws {Error} If document cannot be get by uid
	 */
	public async getByUidWithOffice(uid: string) {
		return this.documentsRepository.findOneByUidWithOffice(uid);
	}
}