const fs = require("fs");
const path = require("path");

const mappings = [
  { pkg: "@fullcalendar/core", target: "fullcalendar-core.css" },
  { pkg: "@fullcalendar/daygrid", target: "fullcalendar-daygrid.css" },
  { pkg: "@fullcalendar/timegrid", target: "fullcalendar-timegrid.css" },
  { pkg: "@fullcalendar/list", target: "fullcalendar-list.css" }
];

const candidates = [
  "main.css",
  "index.css",
  "style.css",
  "styles.css",
  "main.min.css",
  "index.min.css",
  "dist/main.css",
  "dist/index.css"
];

const root = path.resolve(__dirname, "..");
const targetDir = path.join(root, "public", "vendor", "fullcalendar");

if (!fs.existsSync(targetDir)) {
  fs.mkdirSync(targetDir, { recursive: true });
}

let missing = 0;

mappings.forEach(({ pkg, target }) => {
  const basePath = path.join(root, "node_modules", pkg);
  const sourcePath =
    candidates
      .map((candidate) => path.join(basePath, candidate))
      .find((candidatePath) => fs.existsSync(candidatePath)) || null;
  const targetPath = path.join(targetDir, target);

  if (!sourcePath) {
    console.error(`Missing FullCalendar CSS for ${pkg}`);
    missing += 1;
    return;
  }

  fs.copyFileSync(sourcePath, targetPath);
});

if (missing > 0) {
  process.exit(1);
}