#!/usr/bin/env node
// Generates static company directory pages at dist/directory/{slug}/index.html.
import { mkdirSync, readFileSync, writeFileSync } from 'node:fs';
import { resolve } from 'node:path';
import { TeknavData } from '../teknav-data.js';
import { renderStaticFallback, replaceStaticFallback } from './static-fallback.mjs';

const SITE_URL = (process.env.TEKNAV_SITE_URL || process.env.VITE_SITE_URL || 'https://www.teknav.ir').replace(/\/$/, '');
const companies = TeknavData.companies ?? [];

if (!companies.length) {
  console.log('[company-pages] no companies defined — skipping');
  process.exit(0);
}

const template = readFileSync(resolve('dist/index.html'), 'utf8');

function esc(value) {
  return String(value ?? '')
    .replace(/&/g, '&')
    .replace(/"/g, '"')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;');
}

function clean(value) {
  return String(value ?? '').replace(/<[^>]+>/g, ' ').replace(/\s+/g, ' ').trim();
}

function truncate(value, max = 155) {
  const text = clean(value);
  return text.length > max ? `${text.slice(0, max - 1).trim()}…` : text;
}

function buildPage(company) {
  const canonical = `${SITE_URL}/directory/${company.slug}`;
  const title = esc(`${company.name} | دایرکتوری شرکت‌های فناوری | تکناو`);
  const description = esc(truncate(company.metaDescription || company.description, 160));
  const keywords = esc([company.name, 'شرکت فناوری', ...(company.techStack || [])].slice(0, 10).join(', '));

  const jsonLd = JSON.stringify({
    '@context': 'https://schema.org',
    '@graph': [
      {
        '@type': ['Organization', 'NewsMediaOrganization'],
        '@id': `${SITE_URL}/#organization`,
        name: 'تکناو',
        url: SITE_URL,
        logo: { '@type': 'ImageObject', url: `${SITE_URL}/favicon.png` },
      },
      {
        '@type': 'Organization',
        name: company.name,
        description: clean(company.description),
        url: company.websiteUrl || canonical,
        sameAs: company.websiteUrl ? [company.websiteUrl] : [],
      },
      {
        '@type': 'BreadcrumbList',
        itemListElement: [
          { '@type': 'ListItem', position: 1, name: 'تکناو', item: SITE_URL },
          { '@type': 'ListItem', position: 2, name: 'دایرکتوری', item: `${SITE_URL}/directory` },
          { '@type': 'ListItem', position: 3, name: company.name },
        ],
      },
    ],
  });

  let html = template;
  html = html.replace(/<html lang="[^"]*" dir="[^"]*">/, '<html lang="fa" dir="rtl">');
  html = html.replace(/<title>[^<]*<\/title>/, `<title>${title}</title>`);
  html = html.replace(/(<meta name="description" content=")[^"]*(")/,       `$1${description}$2`);
  html = html.replace(/(<meta name="keywords" content=")[^"]*(")/,          `$1${keywords}$2`);
  html = html.replace(/(<meta property="og:locale" content=")[^"]*(")/,     '$1fa_IR$2');
  html = html.replace(/(<meta property="og:title" content=")[^"]*(")/,      `$1${title}$2`);
  html = html.replace(/(<meta property="og:description" content=")[^"]*(")/,`$1${description}$2`);
  html = html.replace(/(<meta property="og:url" content=")[^"]*(")/,        `$1${esc(canonical)}$2`);
  html = html.replace(/(<link rel="canonical" href=")[^"]*(")/,             `$1${esc(canonical)}$2`);
  html = html.replace(/<link rel="alternate" hreflang="[^"]+" href="[^"]+" \/>/, `<link rel="alternate" hreflang="fa" href="${esc(canonical)}" />`);
  html = html.replace(/<script type="application\/ld\+json">[\s\S]*?<\/script>/,
    `<script type="application/ld+json">${jsonLd}</script>`);
  html = replaceStaticFallback(html, renderStaticFallback({
    eyebrow: 'دایرکتوری شرکت‌های فناوری',
    title: clean(company.name),
    description: clean(company.description || company.metaDescription),
    facts: [
      company.category ? { label: 'دسته', value: company.category } : null,
      company.location ? { label: 'موقعیت', value: company.location } : null,
      company.techStack?.length ? { label: 'فناوری‌ها', value: company.techStack.join('، ') } : null,
      company.websiteUrl ? { label: 'وب‌سایت', value: company.websiteUrl } : null,
    ].filter(Boolean),
    links: [
      company.websiteUrl ? { href: company.websiteUrl, label: `وب‌سایت ${company.name}`, text: 'لینک رسمی شرکت' } : null,
      { href: '/directory', label: 'دایرکتوری شرکت‌ها', text: 'فهرست شرکت‌های فناوری' },
      { href: '/articles', label: 'مقاله‌های فناوری', text: 'تحلیل‌های تکناو' },
    ].filter(Boolean),
  }));

  return html;
}

let count = 0;
for (const company of companies) {
  const dir = resolve(`dist/directory/${company.slug}`);
  mkdirSync(dir, { recursive: true });
  writeFileSync(`${dir}/index.html`, buildPage(company), 'utf8');
  count++;
}

console.log(`[company-pages] generated ${count} company pages in dist/directory/`);