import { ApiService } from '../abstractions/api.service';
import { FileUploadService as FileUploadServiceAbstraction } from '../abstractions/fileUpload.service';
import { LogService } from '../abstractions/log.service';

import { FileUploadType } from '../enums/fileUploadType';

import { EncArrayBuffer } from '../models/domain/encArrayBuffer';
import { EncString } from '../models/domain/encString';

import { AttachmentUploadDataResponse } from '../models/response/attachmentUploadDataResponse';
import { SendFileUploadDataResponse } from '../models/response/sendFileUploadDataResponse';

import { AzureFileUploadService } from './azureFileUpload.service';
import { BitwardenFileUploadService } from './bitwardenFileUpload.service';

export class FileUploadService implements FileUploadServiceAbstraction {
    private azureFileUploadService: AzureFileUploadService;
    private bitwardenFileUploadService: BitwardenFileUploadService;

    constructor(private logService: LogService, private apiService: ApiService) {
        this.azureFileUploadService = new AzureFileUploadService(logService);
        this.bitwardenFileUploadService = new BitwardenFileUploadService(apiService);
    }

    async uploadSendFile(uploadData: SendFileUploadDataResponse, fileName: EncString, encryptedFileData: EncArrayBuffer) {
        try {
            switch (uploadData.fileUploadType) {
                case FileUploadType.Direct:
                    await this.bitwardenFileUploadService.upload(fileName.encryptedString, encryptedFileData,
                        fd => this.apiService.postSendFile(uploadData.sendResponse.id, uploadData.sendResponse.file.id, fd));
                    break;
                case FileUploadType.Azure:
                    const renewalCallback = async () => {
                        const renewalResponse = await this.apiService.renewSendFileUploadUrl(uploadData.sendResponse.id,
                            uploadData.sendResponse.file.id);
                        return renewalResponse.url;
                    };
                    await this.azureFileUploadService.upload(uploadData.url, encryptedFileData,
                        renewalCallback);
                    break;
                default:
                    throw new Error('Unknown file upload type');
            }
        } catch (e) {
            await this.apiService.deleteSend(uploadData.sendResponse.id);
            throw e;
        }
    }

    async uploadCipherAttachment(admin: boolean, uploadData: AttachmentUploadDataResponse, encryptedFileName: string, encryptedFileData: EncArrayBuffer) {
        const response = admin ? uploadData.cipherMiniResponse : uploadData.cipherResponse;
        try {
            switch (uploadData.fileUploadType) {
                case FileUploadType.Direct:
                    await this.bitwardenFileUploadService.upload(encryptedFileName, encryptedFileData,
                        fd => this.apiService.postAttachmentFile(response.id, uploadData.attachmentId, fd));
                    break;
                case FileUploadType.Azure:
                    const renewalCallback = async () => {
                        const renewalResponse = await this.apiService.renewAttachmentUploadUrl(response.id,
                            uploadData.attachmentId);
                        return renewalResponse.url;
                    };
                    await this.azureFileUploadService.upload(uploadData.url, encryptedFileData, renewalCallback);
                    break;
                default:
                    throw new Error('Unknown file upload type.');
            }
        } catch (e) {
            if (admin) {
                await this.apiService.deleteCipherAttachmentAdmin(response.id, uploadData.attachmentId);
            } else {
                await this.apiService.deleteCipherAttachment(response.id, uploadData.attachmentId);
            }
            throw e;
        }
    }
}