#!/usr/bin/env node

const fs = require('fs');
const path = require('path');
require('dotenv').config();

console.log('🎬 Gravl Multimedia Asset Generator\n');

// Config
const apiKey = process.env.VEO_API_KEY;
const googleCreds = process.env.GOOGLE_APPLICATION_CREDENTIALS;
const outputDir = process.env.NANO_BANANA_OUTPUT_DIR || './marketing/images';
const videoDir = process.env.VEO_OUTPUT_DIR || './marketing/videos';

// Ensure directories exist
[outputDir, videoDir].forEach(dir => {
  if (!fs.existsSync(dir)) {
    fs.mkdirSync(dir, { recursive: true });
  }
});

console.log('📁 Output directories:');
console.log(`   Images: ${outputDir}`);
console.log(`   Videos: ${videoDir}\n`);

// Image templates for Gravl
const imagePrompts = [
  {
    name: 'login-page.png',
    prompt: 'Gravl fitness app login page with barbell logo, email/password inputs, dark theme #0a0a0f, orange accent #ff6b35, gradient background, 1280x720'
  },
  {
    name: 'dashboard.png',
    prompt: 'Gravl dashboard: stat cards showing workouts completed, total volume, streak, calendar view, animated elements, dark modern design, 1280x720'
  },
  {
    name: 'workout-page.png',
    prompt: 'Gravl workout page: exercise cards with sets/reps input, rest timer showing 90 seconds, complete button, smooth animations, dark theme, 1280x720'
  }
];

// Video templates
const videoPrompts = [
  {
    name: 'workout-demo.mp4',
    prompt: 'Gravl fitness app demo: user opens app, selects a workout, clicks on exercise, logs 3 sets of 10 reps at 80kg, rests with 90-second countdown timer, completes workout',
    duration: 10
  }
];

console.log('📝 Image generation requests (mock for demo):\n');
imagePrompts.forEach(img => {
  console.log(`  ✓ ${img.name}`);
  // In real usage, this would call nano-banana-pro API
  // For now, create placeholder files
  const filePath = path.join(outputDir, img.name);
  fs.writeFileSync(filePath, `Placeholder: ${img.prompt}`);
  console.log(`    → Created (placeholder): ${filePath}`);
});

console.log('\n🎥 Video generation requests (mock for demo):\n');
videoPrompts.forEach(vid => {
  console.log(`  ✓ ${vid.name} (${vid.duration}s)`);
  // In real usage, this would call Veo API
  const filePath = path.join(videoDir, vid.name);
  fs.writeFileSync(filePath, `Placeholder: ${vid.prompt}`);
  console.log(`    → Created (placeholder): ${filePath}`);
});

console.log('\n✨ Generation complete!\n');
console.log('📌 Next steps:');
console.log('  1. Set VEO_API_KEY and GOOGLE_APPLICATION_CREDENTIALS in .env');
console.log('  2. Replace placeholder calls with actual API requests');
console.log('  3. Run: npm install dotenv');
console.log(`  4. Run: node scripts/generate-assets.js\n`);

console.log('📂 Generated files:');
[outputDir, videoDir].forEach(dir => {
  const files = fs.readdirSync(dir);
  files.forEach(f => console.log(`   ${path.join(dir, f)}`));
});