/**
 * SEO Audit Script
 * Runs comprehensive SEO audits across all content
 */
import { db } from '../db/index.js';
import { pages, translations } from '../db/schema.js';
import { eq } from 'drizzle-orm';
import { runSeoAudit, generateSitemap } from '../services/seo-service.js';
import { ALL_SITES } from '../config/sites.js';
import { writeFileSync, mkdirSync } from 'fs';
import { join } from 'path';

async function runSeoAuditBatch(options: {
  domain?: string;
  language?: string;
  generateSitemaps?: boolean;
  outputDir?: string;
} = {}) {
  console.log('🔍 Starting SEO audit...\n');

  const outputDir = options.outputDir || './output/seo';
  mkdirSync(outputDir, { recursive: true });

  // Audit source pages
  const sourcePages = db.select().from(pages)
    .where(eq(pages.status, 'published'))
    .all();

  console.log(`Auditing ${sourcePages.length} source pages...\n`);

  const results: Array<{
    url: string;
    language: string;
    score: number;
    issues: number;
  }> = [];

  for (let i = 0; i < sourcePages.length; i++) {
    const page = sourcePages[i];
    console.log(`  [${i + 1}/${sourcePages.length}] ${page.title}`);

    try {
      // Audit source
      const sourceAudit = runSeoAudit(page.id);
      results.push({
        url: sourceAudit.url,
        language: sourceAudit.language,
        score: sourceAudit.score,
        issues: sourceAudit.issues.length
      });

      // Audit translations
      const pageTranslations = db.select().from(translations)
        .where(eq(translations.pageId, page.id))
        .all();

      for (const translation of pageTranslations) {
        if (options.language && translation.targetLanguage !== options.language) continue;

        const transAudit = runSeoAudit(page.id, translation.targetLanguage);
        results.push({
          url: transAudit.url,
          language: transAudit.language,
          score: transAudit.score,
          issues: transAudit.issues.length
        });
      }
    } catch (err) {
      console.log(`    ✗ Error: ${err instanceof Error ? err.message : 'Unknown'}`);
    }
  }

  // Summary
  const avgScore = results.length > 0
    ? results.reduce((sum, r) => sum + r.score, 0) / results.length
    : 0;

  const lowScorePages = results.filter(r => r.score < 70);

  console.log(`\n📊 SEO Audit Summary`);
  console.log(`  Total audited: ${results.length}`);
  console.log(`  Average score: ${Math.round(avgScore * 10) / 10}/100`);
  console.log(`  Pages needing attention: ${lowScorePages.length}`);

  if (lowScorePages.length > 0) {
    console.log(`\n⚠️  Low scores:`);
    lowScorePages.forEach(r => {
      console.log(`  - ${r.url} (${r.language}): ${Math.round(r.score)}/100`);
    });
  }

  // Generate sitemaps
  if (options.generateSitemaps) {
    console.log(`\n🗺️  Generating sitemaps...`);

    for (const site of ALL_SITES) {
      const sitemap = generateSitemap(site.domain);
      const filename = join(outputDir, `sitemap-${site.domain}.xml`);
      writeFileSync(filename, sitemap);
      console.log(`  ✓ ${filename}`);
    }
  }

  // Save report
  const report = {
    timestamp: new Date().toISOString(),
    summary: {
      totalAudited: results.length,
      averageScore: Math.round(avgScore * 10) / 10,
      needsAttention: lowScorePages.length
    },
    results
  };

  const reportFile = join(outputDir, `audit-report-${new Date().toISOString().split('T')[0]}.json`);
  writeFileSync(reportFile, JSON.stringify(report, null, 2));
  console.log(`\n📝 Report saved: ${reportFile}`);

  console.log('\n✅ SEO audit complete!');
}

// CLI
const args = process.argv.slice(2);
const options: {
  domain?: string;
  language?: string;
  generateSitemaps?: boolean;
} = {};

if (args.includes('--sitemaps')) options.generateSitemaps = true;

const domainArg = args.find(a => a.startsWith('--domain='));
if (domainArg) options.domain = domainArg.split('=')[1];

const langArg = args.find(a => a.startsWith('--lang='));
if (langArg) options.language = langArg.split('=')[1];

runSeoAuditBatch(options).catch(console.error);