/*
 * 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 parseTeachers from "../utils/parseTeachers.js"
import fs from "fs/promises";

const PREVIOUS = "db/v3/_previous.json";

export default async function parseV3(fileV2Path) {
  const previousStr = fs.readFile(PREVIOUS, {
    encoding: "utf8",
  });
  const nowStr = fs.readFile(fileV2Path, {
    encoding: "utf8",
  })

  const previous = JSON.parse(previousStr);
  const previousDays = previous.props.map(prop => prop.date);
  const now = JSON.parse(nowStr);

  for (const prop of now.props) {
    if (!previousDays.includes(prop.date)) {
      doWholeDay(prop);
      continue;
    }

    // TODO: Check for changes for each class, if any change is do the class (will do someday)
  }

  // CHANGE PREVIOUS TO NOW
  fs.copyFile(fileV2Path, PREVIOUS);
}