import { Request, Response } from "express";
import { FileSystemHelper } from "../../../helpers/fileSystemHelper";
import BackupHelper from "../../../helpers/backupHelper";
import InternalException from "../../../exceptions/internalException";

/**
 * @description get generated backups
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getGeneratedBackups(req: Request, res: Response): Promise<any> {
  let filesInFolder = FileSystemHelper.getFilesInDirectory(`backup`);

  let sorted = filesInFolder.sort((a, b) => new Date(b.split(".")[0]).getTime() - new Date(a.split(".")[0]).getTime());

  res.json(sorted);
}

/**
 * @description download backup file
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function downloadBackupFile(req: Request, res: Response): Promise<any> {
  let filename = req.params.filename;

  let filepath = FileSystemHelper.formatPath("backup", filename);

  res.sendFile(filepath, {
    headers: {
      "Content-Type": "application/json",
    },
  });
}

/**
 * @description get uploaded backups
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getUploadedBackups(req: Request, res: Response): Promise<any> {
  let filesInFolder = FileSystemHelper.getFilesInDirectory("uploaded-backup");

  let sorted = filesInFolder.sort((a, b) => new Date(b.split("_")[0]).getTime() - new Date(a.split("_")[0]).getTime());

  res.json(sorted);
}

/**
 * @description download uploaded backup file
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function downloadUploadedBackupFile(req: Request, res: Response): Promise<any> {
  let filename = req.params.filename;

  let filepath = FileSystemHelper.formatPath("uploaded-backup", filename);

  res.sendFile(filepath, {
    headers: {
      "Content-Type": "application/json",
    },
  });
}

/**
 * @description create backup manually
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function createManualBackup(req: Request, res: Response): Promise<any> {
  await BackupHelper.createBackup({});

  res.sendStatus(204);
}

/**
 * @description restore backup by selected
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function restoreBackupByLocalFile(req: Request, res: Response): Promise<any> {
  let filename = req.body.filename;
  let partial = req.body.partial;
  let include = req.body.include;
  let overwrite = req.body.overwrite;

  await BackupHelper.loadBackup({ filename, include, partial, overwrite });

  res.sendStatus(204);
}

/**
 * @description restore uploaded backup by selected
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function restoreBackupByUploadedFile(req: Request, res: Response): Promise<any> {
  let filename = req.body.filename;
  let partial = req.body.partial;
  let include = req.body.include;

  await BackupHelper.loadBackup({ filename, path: "uploaded-backup", include, partial });

  res.sendStatus(204);
}

/**
 * @description upload backup
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function uploadBackupFile(req: Request, res: Response): Promise<any> {
  if (!req.file) {
    throw new InternalException("File upload failed");
  }
  res.sendStatus(204);
}