import { Request, Response } from "express";
import fs from "fs-extra";
import path from "path";
import GenerateThumbnail from "../util/generateThumbnail";
import MediaFile from "../util/interfaces/MediaFile";
import GenerateUrl from "../util/MediaUrlGen";
import { PathToRoBillsFolder, PathToRoFolder } from "../util/pathGenerators";
import { FolderPaths } from "../util/serverInit";

/** @description Bills will use the hierarchy of PDFs stored under the Job first, and then the Bills folder. */
export async function BillsListMedia(req: Request, res: Response) {
  const jobid: string = (req.body.jobid || "").trim();
  const vendor: string = (req.body.vendor || "").trim();
  const invoice_number: string = (req.body.invoice_number || "").trim();

  //Ensure all directories exist.
  await fs.ensureDir(PathToRoBillsFolder(jobid));

  const filesList: fs.Dirent[] = (
    await fs.readdir(PathToRoBillsFolder(jobid), {
      withFileTypes: true,
    })
  ).filter((f) => f.isFile() && !/(^|\/)\.[^\/\.]/g.test(f.name));

  const ret: MediaFile[] = await Promise.all(
    filesList.map(async (file) => {
      const relativeThumbPath: string = await GenerateThumbnail(
        path.join(PathToRoBillsFolder(jobid), file.name)
      );
      return {
        src: GenerateUrl([
          FolderPaths.StaticPath,
          FolderPaths.JobsFolder,
          jobid,
          FolderPaths.BillsSubDir,
          file.name,
        ]),
        thumbnail: GenerateUrl([
          FolderPaths.StaticPath,
          FolderPaths.JobsFolder,
          jobid,
          FolderPaths.BillsSubDir,
          relativeThumbPath,
        ]),
        thumbnailHeight: 250,
        thumbnailWidth: 250,
      };
    })
  );

  res.json(ret);
}