#!/usr/bin/env node
/** Ensure app/beauty routes remain wired and URLs are preserved. */
import { existsSync, readFileSync, readdirSync, statSync } from "node:fs";
import { join, relative, sep } from "node:path";
import { fileURLToPath } from "node:url";

const ROOT = join(fileURLToPath(new URL(".", import.meta.url)), "..");
const BEAUTY_APP = join(ROOT, "app", "beauty");

const REQUIRED_LAYOUTS = [
  "layout.tsx",
  "admin/layout.tsx",
  "customer/layout.tsx",
  "owner/layout.tsx",
  "(owner)/layout.tsx",
  "reception/layout.tsx",
  "staff-portal/layout.tsx",
  "site/layout.tsx",
];

/** @type {string[]} */
const issues = [];

function walkPages(dir, pages = []) {
  for (const entry of readdirSync(dir)) {
    const full = join(dir, entry);
    if (statSync(full).isDirectory()) walkPages(full, pages);
    else if (entry === "page.tsx") pages.push(full);
  }
  return pages;
}

if (!existsSync(BEAUTY_APP)) {
  console.error("❌ app/beauty missing");
  process.exit(1);
}

for (const layout of REQUIRED_LAYOUTS) {
  const p = join(BEAUTY_APP, layout);
  if (!existsSync(p)) issues.push(`Missing layout: app/beauty/${layout}`);
}

const pages = walkPages(BEAUTY_APP);
if (pages.length < 90) {
  issues.push(`Expected ~100 beauty pages, found ${pages.length}`);
}

for (const page of pages) {
  const rel = relative(ROOT, page).split(sep).join("/");
  const content = readFileSync(page, "utf8");
  if (!/export\s+(default|\{)/.test(content)) {
    issues.push(`${rel}: no default export`);
  }
  // Route files should not contain heavy business logic (>80 lines)
  const lines = content.split("\n").length;
  if (lines > 80 && !rel.includes("(owner)")) {
    // owner routes recreated as thin - warn only for non-owner
    if (lines > 15 && !content.includes("@/modules/beauty")) {
      issues.push(`${rel}: ${lines} lines — route should re-export from modules/beauty`);
    }
  }
}

// Hub entry redirect
const rootPage = join(BEAUTY_APP, "page.tsx");
if (existsSync(rootPage)) {
  const c = readFileSync(rootPage, "utf8");
  if (!c.includes("/beauty/hub") && !c.includes("redirect")) {
    issues.push("app/beauty/page.tsx should redirect to hub");
  }
}

console.log("Beauty Route Validation\n");
console.log(`Pages: ${pages.length}`);
console.log(`Layouts checked: ${REQUIRED_LAYOUTS.length}`);

if (issues.length) {
  console.error(`\n❌ ${issues.length} issue(s):`);
  for (const i of issues) console.error(`   - ${i}`);
  process.exit(1);
}

console.log("\n✅ All beauty routes and layouts present");
console.log("✅ Route files are thin adapters");
process.exit(0);