"""
Setup script for BuildTheFuture application
Handles installation and initial configuration
"""

import os
import sys
import subprocess
import shutil
from pathlib import Path

def check_python_version():
    """Check if Python version is compatible"""
    if sys.version_info < (3, 8):
        print("❌ Python 3.8 or higher is required")
        print(f"Current version: {sys.version}")
        return False
    print(f"✅ Python version: {sys.version.split()[0]}")
    return True

def install_dependencies():
    """Install required dependencies"""
    print("📦 Installing dependencies...")
    try:
        subprocess.check_call([sys.executable, "-m", "pip", "install", "-r", "requirements.txt"])
        print("✅ Dependencies installed successfully")
        return True
    except subprocess.CalledProcessError as e:
        print(f"❌ Failed to install dependencies: {e}")
        return False

def setup_environment():
    """Set up environment file"""
    env_file = Path(".env")
    env_example = Path("env_example.txt")
    
    if env_file.exists():
        print("✅ .env file already exists")
        return True
    
    if env_example.exists():
        shutil.copy(env_example, env_file)
        print("✅ Created .env file from template")
        print("⚠️  Please edit .env file and add your API keys")
        return True
    else:
        print("❌ env_example.txt not found")
        return False

def create_directories():
    """Create necessary directories"""
    directories = ["samples", "outputs", "logs"]
    
    for directory in directories:
        Path(directory).mkdir(exist_ok=True)
        print(f"✅ Created directory: {directory}")

def run_tests():
    """Run basic tests"""
    print("🧪 Running tests...")
    try:
        result = subprocess.run([sys.executable, "test_app.py"], 
                              capture_output=True, text=True)
        if result.returncode == 0:
            print("✅ All tests passed")
            return True
        else:
            print("⚠️  Some tests failed:")
            print(result.stdout)
            print(result.stderr)
            return False
    except Exception as e:
        print(f"❌ Test execution failed: {e}")
        return False

def main():
    """Main setup function"""
    print("🏗️  BuildTheFuture Setup")
    print("=" * 50)
    
    steps = [
        ("Checking Python version", check_python_version),
        ("Installing dependencies", install_dependencies),
        ("Setting up environment", setup_environment),
        ("Creating directories", create_directories),
        ("Running tests", run_tests),
    ]
    
    for step_name, step_func in steps:
        print(f"\n{step_name}...")
        if not step_func():
            print(f"❌ Setup failed at: {step_name}")
            return False
    
    print("\n" + "=" * 50)
    print("🎉 Setup completed successfully!")
    print("\nNext steps:")
    print("1. Edit .env file and add your API keys:")
    print("   - GEMINI_API_KEY (required)")
    print("   - ELEVENLABS_API_KEY (optional)")
    print("2. Run the application:")
    print("   python app.py")
    print("3. Or create sample images first:")
    print("   python demo.py")
    
    return True

if __name__ == "__main__":
    success = main()
    sys.exit(0 if success else 1)