/*
 * Copyright (C) 2025 Jakub Žitník
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

import ExcelJS from "exceljs"

import generateArchivedV1_V2 from "./parse/archived/v1_v2.js";
import parseV3 from "./parse/v3.js";
import fs from "fs/promises";
import { fileURLToPath } from "url";

type Save = {
  filePath: string | string[],
  parser: (workbook: ExcelJS.Workbook, downloadedFilePath: string) => Promise<any>
}

async function doAll(saves: Save[], workbook: ExcelJS.Workbook, downloadedFilePath: string) {
  const promises = saves.map(save => {
    return (async function() {
      const res = await save.parser(workbook, downloadedFilePath);

      if (typeof save.filePath === "string") {
        save.filePath = [save.filePath];
      }

      await Promise.all(
        save.filePath.map(filePath => fs.writeFile(filePath, JSON.stringify(res)))
      );
    })()
  })

  await Promise.all(promises);
}

export default async function parseAll(downloadedFilePath: string) {
  const workbook = new ExcelJS.Workbook();
  await workbook.xlsx.readFile(downloadedFilePath);

  await doAll([
    {
      filePath: ["volume/db/v1.json", "volume/db/v2.json"],
      parser: generateArchivedV1_V2,
    },
    {
      filePath: "volume/db/v3.json",
      parser: parseV3
    },
  ], workbook, downloadedFilePath);
}

if (process.argv[1] === fileURLToPath(import.meta.url)) {
  await parseAll("volume/db/current.xlsx");
}