// Quick audit script to inspect all lesson packages
const fs = require("fs");
const path = require("path");

// Generated packages
const genDir = path.join(__dirname, "../../data/teaching/social-science/generated");
const histDir = path.join(__dirname, "../../data/teaching/history");

function auditPackage(filePath) {
  const d = JSON.parse(fs.readFileSync(filePath, "utf8"));
  const visualKinds = {};
  d.scenes.forEach(s => {
    visualKinds[s.visual.kind] = (visualKinds[s.visual.kind] || 0) + 1;
  });
  const sections = [...new Set(d.scenes.map(s => s.section))];
  const hasImages = d.scenes.filter(s => s.visual.image).length;
  const totalWords = d.scenes.reduce((sum, s) => sum + s.narration.split(/\s+/).length, 0);
  
  return {
    file: path.basename(filePath),
    chapterId: d.chapterId,
    subject: d.subject,
    discipline: d.discipline || "unknown",
    chapterTitle: d.chapterTitle,
    chapterNumber: d.chapterNumber,
    bookPart: d.bookPart,
    targetDuration: d.targetDurationMinutes,
    teachingMode: d.teachingMode,
    sceneCount: d.scenes.length,
    totalWords,
    sections,
    visualKinds,
    scenesWithImages: hasImages,
    sourceEdition: d.sourceEdition,
  };
}

console.log("=== GENERATED PACKAGES ===");
const genFiles = fs.readdirSync(genDir).filter(f => f.endsWith(".json")).sort();
genFiles.forEach(f => {
  const info = auditPackage(path.join(genDir, f));
  console.log(`\n--- ${info.chapterId} ---`);
  console.log(`  Title: ${info.chapterTitle}`);
  console.log(`  Discipline: ${info.discipline} | Book: ${info.bookPart} | Ch#: ${info.chapterNumber}`);
  console.log(`  Scenes: ${info.sceneCount} | Words: ${info.totalWords} | Images: ${info.scenesWithImages}`);
  console.log(`  Target: ${info.targetDuration}min | Mode: ${info.teachingMode}`);
  console.log(`  Visual kinds:`, JSON.stringify(info.visualKinds));
  console.log(`  Sections: [${info.sections.join(", ")}]`);
});

console.log("\n\n=== HISTORY PACKAGES ===");
const histFiles = fs.readdirSync(histDir).filter(f => f.endsWith(".json")).sort();
histFiles.forEach(f => {
  const info = auditPackage(path.join(histDir, f));
  console.log(`\n--- ${info.chapterId} ---`);
  console.log(`  Title: ${info.chapterTitle}`);
  console.log(`  Discipline: ${info.discipline} | Book: ${info.bookPart} | Ch#: ${info.chapterNumber}`);
  console.log(`  Scenes: ${info.sceneCount} | Words: ${info.totalWords} | Images: ${info.scenesWithImages}`);
  console.log(`  Target: ${info.targetDuration}min | Mode: ${info.teachingMode}`);
  console.log(`  Visual kinds:`, JSON.stringify(info.visualKinds));
  console.log(`  Sections: [${info.sections.join(", ")}]`);
});

// Check existing 1080p outputs
console.log("\n\n=== EXISTING 1080p MP4 OUTPUTS ===");
const outputRoot = path.join(__dirname, "../../outputs/video/social-science");
function findMp4s(dir) {
  if (!fs.existsSync(dir)) return [];
  const results = [];
  for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
    const full = path.join(dir, entry.name);
    if (entry.isDirectory()) results.push(...findMp4s(full));
    else if (entry.name.endsWith("-1080p.mp4")) results.push(full);
  }
  return results;
}
const mp4s = findMp4s(outputRoot);
mp4s.forEach(f => {
  const stat = fs.statSync(f);
  console.log(`  ${path.relative(outputRoot, f)} (${(stat.size / 1024 / 1024).toFixed(1)} MB)`);
});
console.log(`\nTotal 1080p MP4s found: ${mp4s.length}`);

// Check existing audio manifests
console.log("\n\n=== EXISTING AUDIO MANIFESTS ===");
function findManifests(dir) {
  if (!fs.existsSync(dir)) return [];
  const results = [];
  for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
    const full = path.join(dir, entry.name);
    if (entry.isDirectory()) results.push(...findManifests(full));
    else if (entry.name === "manifest.json" && full.includes("kokoro")) results.push(full);
  }
  return results;
}
const manifests = findManifests(outputRoot);
manifests.forEach(f => {
  try {
    const m = JSON.parse(fs.readFileSync(f, "utf8"));
    console.log(`  ${path.relative(outputRoot, f)} (${m.sceneCount} scenes, ${(m.totalDurationSeconds / 60).toFixed(1)}min, voice: ${m.voice})`);
  } catch { console.log(`  ${path.relative(outputRoot, f)} (parse error)`); }
});
console.log(`\nTotal audio manifests: ${manifests.length}`);