#!/usr/bin/env node
/**
 * Validate translations completeness and HTML output
 */

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

const LANGUAGES = ['zh-cn', 'zh-tw', 'ja', 'ko', 'th', 'vi', 'id', 'ms', 'hi'];
const REQUIRED_KEYS = [
  'TITLE', 'META_DESC', 'NAV_HOW', 'NAV_MISSIONS', 'NAV_EARNINGS',
  'NAV_LANDVEX', 'NAV_FAQ', 'CTA_START', 'HERO_BADGE', 'HERO_H1',
  'HERO_H1_EMPH', 'HERO_SUB', 'EMAIL_PLACEHOLDER', 'TRUST_LINE',
  'STAT1_NUM', 'STAT1_LBL', 'STAT2_NUM', 'STAT2_LBL', 'STAT3_NUM', 'STAT3_LBL',
  'STATS_1_VAL', 'STATS_1_LBL', 'STATS_2_VAL', 'STATS_2_LBL',
  'STATS_3_VAL', 'STATS_3_LBL', 'STATS_4_VAL', 'STATS_4_LBL',
  'HOW_TITLE', 'HOW_SUB', 'STEP1_TITLE', 'STEP1_DESC',
  'STEP2_TITLE', 'STEP2_DESC', 'STEP3_TITLE', 'STEP3_DESC',
  'MISSIONS_TITLE', 'MISSIONS_SUB', 'M1_TITLE', 'M1_DESC', 'M1_CHIP',
  'M2_TITLE', 'M2_DESC', 'M2_CHIP', 'M3_TITLE', 'M3_DESC', 'M3_CHIP',
  'EARNINGS_TITLE', 'EARNINGS_SUB', 'TIER1_NAME', 'TIER1_MISSIONS',
  'TIER1_F1', 'TIER1_F2', 'TIER1_F3', 'TIER2_NAME', 'TIER2_MISSIONS',
  'TIER2_F1', 'TIER2_F2', 'TIER2_F3', 'TIER3_NAME', 'TIER3_MISSIONS',
  'TIER3_F1', 'TIER3_F2', 'TIER3_F3',
  'AUTH_TITLE', 'AUTH_SUB', 'AUTH_VISUAL_TITLE', 'AUTH_VISUAL_DESC',
  'AUTH_B1', 'AUTH_B2', 'AUTH_B3', 'AUTH_B4',
  'AUTH_S1_TITLE', 'AUTH_S1_DESC', 'AUTH_S2_TITLE', 'AUTH_S2_DESC',
  'AUTH_S3_TITLE', 'AUTH_S3_DESC', 'AUTH_S4_TITLE', 'AUTH_S4_DESC', 'AUTH_CTA',
  'FAQ_TITLE', 'FAQ_SUB', 'FAQ_Q1', 'FAQ_A1', 'FAQ_Q2', 'FAQ_A2',
  'FAQ_Q3', 'FAQ_A3', 'FAQ_Q4', 'FAQ_A4', 'FAQ_Q5', 'FAQ_A5',
  'FOOTER_TAGLINE', 'FOOTER_COL1_TITLE', 'FOOTER_COL1_L1', 'FOOTER_COL1_L2',
  'FOOTER_COL1_L3', 'FOOTER_COL1_L4', 'FOOTER_COL2_TITLE', 'FOOTER_COL2_L1',
  'FOOTER_COL2_L2', 'FOOTER_COL2_L3', 'FOOTER_COL3_TITLE', 'FOOTER_COL3_L1',
  'FOOTER_COL3_L2', 'FOOTER_COL3_L3', 'COPYRIGHT', 'LANG_LABEL',
  'PHONE_MISSION', 'PHONE_ADDR', 'PHONE_REWARD', 'PHONE_META',
];

let errors = 0;

console.log('🔍 Validating translations...\n');

for (const lang of LANGUAGES) {
  const transPath = path.join(__dirname, `../src/translations/${lang}.json`);
  if (!fs.existsSync(transPath)) {
    console.error(`❌ Missing: ${lang}.json`);
    errors++;
    continue;
  }

  const trans = JSON.parse(fs.readFileSync(transPath, 'utf8'));
  const missing = REQUIRED_KEYS.filter(k => !trans[k] || trans[k].trim() === '');

  if (missing.length > 0) {
    console.error(`❌ ${lang}: Missing ${missing.length} keys`);
    for (const key of missing.slice(0, 5)) {
      console.error(`   - ${key}`);
    }
    if (missing.length > 5) console.error(`   ... and ${missing.length - 5} more`);
    errors++;
  } else {
    console.log(`✅ ${lang}: Complete`);
  }
}

// Check for placeholder leaks
const distDir = path.join(__dirname, '../dist');
if (fs.existsSync(distDir)) {
  console.log('\n🔍 Checking for placeholder leaks in dist/...');
  for (const lang of LANGUAGES) {
    const htmlPath = path.join(distDir, lang, 'index.html');
    if (fs.existsSync(htmlPath)) {
      const html = fs.readFileSync(htmlPath, 'utf8');
      const leaks = html.match(/\{\{\w+\}\}/g);
      if (leaks) {
        console.error(`❌ ${lang}: ${leaks.length} placeholders leaked`);
        errors++;
      }
    }
  }
}

if (errors > 0) {
  console.log(`\n❌ ${errors} error(s) found`);
  process.exit(1);
} else {
  console.log('\n✅ All validations passed');
}