#!/usr/bin/env node
/**
 * Scans src/app for public static routes and writes
 * src/generated/sitemap-config.json for Meshkee sync.
 */
const fs = require("fs");
const path = require("path");

const appDir = path.join(__dirname, "../src/app");
const outDir = path.join(__dirname, "../src/generated");
const outFile = path.join(outDir, "sitemap-config.json");

const EXCLUDE_PREFIXES = [
  "/meshkee",
  "/api",
  "/auth",
  "/login",
  "/checkout",
  "/cart",
  "/account",
  "/admin",
  "/customer",
];

function walk(dir, base = "") {
  const entries = fs.readdirSync(dir, { withFileTypes: true });
  const routes = [];

  for (const entry of entries) {
    if (entry.name.startsWith("_") || entry.name.startsWith(".")) continue;
    const full = path.join(dir, entry.name);

    if (entry.isDirectory()) {
      if (entry.name.startsWith("[") && entry.name.endsWith("]")) continue;
      const segment = entry.name.startsWith("(") ? "" : `/${entry.name}`;
      routes.push(...walk(full, `${base}${segment}`));
      continue;
    }

    if (entry.name === "page.tsx" || entry.name === "page.ts" || entry.name === "page.jsx") {
      const routePath = base || "/";
      if (EXCLUDE_PREFIXES.some((p) => routePath === p || routePath.startsWith(`${p}/`))) {
        continue;
      }
      routes.push(routePath);
    }
  }

  return routes;
}

function priorityFor(route) {
  if (route === "/") return 1.0;
  if (route === "/products") return 0.8;
  if (route === "/blog") return 0.7;
  if (route === "/about-us") return 0.6;
  if (route === "/contact-us") return 0.5;
  return 0.5;
}

function changefreqFor(route) {
  if (route === "/" || route === "/blog") return "daily";
  return undefined;
}

const routes = [...new Set(walk(appDir))].sort((a, b) => {
  if (a === "/") return -1;
  if (b === "/") return 1;
  return a.localeCompare(b);
});

const staticPages = routes.map((routePath) => {
  const page = {
    path: routePath,
    priority: priorityFor(routePath),
  };
  const cf = changefreqFor(routePath);
  if (cf) page.changefreq = cf;
  return page;
});

const config = {
  baseUrl: "https://www.plift.ir",
  staticPages,
};

fs.mkdirSync(outDir, { recursive: true });
fs.writeFileSync(outFile, `${JSON.stringify(config, null, 2)}\n`, "utf8");
console.log(`Wrote ${outFile} (${staticPages.length} static pages)`);