import { Request, Response } from "express";
import fs from "fs-extra";
import path from "path";
import GenerateThumbnail from "../util/generateThumbnail";
import GenerateUrl from "../util/MediaUrlGen";
import { FolderPaths } from "../util/serverInit";
import multer from "multer";
import { JobsListMedia } from "./jobsListMedia";

export async function JobsMoveMedia(req: Request, res: Response) {
  const ro_number: string = (req.body.ro_number || "").trim();
  const from_ro: string = (req.body.from_ro || "").trim();
  const files: string[] = req.body.files; //Just file names.

  //Validate the request is valid and contains everything that it needs.

  if (from_ro === "") {
    res.status(400).json({ error: "from_ro must be specified. " });
    return;
  }
  if (files.length === 0) {
    res.status(400).json({ error: "files must be specified. " });
    return;
  }
  //Make sure the destination RO directory exists.
  await fs.ensureDir(path.join(FolderPaths.Jobs, ro_number));

  const movingQueue: Promise<void>[] = [];

  files.forEach((file) => {
    movingQueue.push(
      fs.move(
        path.join(FolderPaths.Jobs, from_ro, file),
        path.join(FolderPaths.Jobs, ro_number, file)
      )
    );

    movingQueue.push(
      fs.move(
        path.join(FolderPaths.Jobs, from_ro, FolderPaths.ThumbsSubDir, file),
        path.join(FolderPaths.Jobs, ro_number, FolderPaths.ThumbsSubDir, file)
      )
    );
  });

  //Use AllSettled as it allows for individual moves to fail.
  //e.g. if the thumbnail does not exist.
  await Promise.allSettled(movingQueue);

  try {
    JobsListMedia(req, res);
  } catch (err) {
    res.status(500).send(err);
  }
}