#!/usr/bin/env python3
"""
Verification script for the Enhanced DOCX to PDF Converter
"""

import os
import sys
from pathlib import Path

def verify_directory_structure():
    """Verify that all required directories and files exist"""
    print("Verifying directory structure...")
    
    required_dirs = [
        "src",
        "src/api",
        "src/utils",
        "tests",
        "conversions"
    ]
    
    required_files = [
        "src/api/main.py",
        "src/api/app.py",
        "src/utils/config.py",
        "src/utils/converter.py",
        "src/utils/file_handler.py",
        "tests/test_converter.py",
        "Dockerfile",
        "docker-compose.yml",
        "requirements.txt",
        "README.md"
    ]
    
    # Check directories
    for dir_path in required_dirs:
        if not os.path.exists(dir_path):
            print(f"❌ Missing directory: {dir_path}")
            return False
        print(f"✅ Found directory: {dir_path}")
    
    # Check files
    for file_path in required_files:
        if not os.path.exists(file_path):
            print(f"❌ Missing file: {file_path}")
            return False
        print(f"✅ Found file: {file_path}")
    
    return True

def verify_python_compilation():
    """Verify that all Python files compile without syntax errors"""
    print("\nVerifying Python compilation...")
    
    python_files = [
        "src/api/main.py",
        "src/api/app.py",
        "src/utils/config.py",
        "src/utils/converter.py",
        "src/utils/file_handler.py",
        "tests/test_converter.py"
    ]
    
    for file_path in python_files:
        try:
            with open(file_path, 'r', encoding='utf-8') as f:
                compile(f.read(), file_path, 'exec')
            print(f"✅ Compiles successfully: {file_path}")
        except Exception as e:
            print(f"❌ Compilation error in {file_path}: {e}")
            return False
    
    return True

def verify_docker_files():
    """Verify Docker configuration files"""
    print("\nVerifying Docker configuration...")
    
    # Check if Dockerfile exists and is readable
    try:
        with open("Dockerfile", "r") as f:
            content = f.read()
            if "FROM ubuntu:22.04" in content and "libreoffice" in content:
                print("✅ Dockerfile appears to be correctly configured")
            else:
                print("⚠️ Dockerfile may be missing key components")
    except Exception as e:
        print(f"❌ Error reading Dockerfile: {e}")
        return False
    
    # Check if docker-compose.yml exists and is readable
    try:
        with open("docker-compose.yml", "r") as f:
            content = f.read()
            if "docx-to-pdf-enhanced" in content and "8000:8000" in content:
                print("✅ docker-compose.yml appears to be correctly configured")
            else:
                print("⚠️ docker-compose.yml may be missing key components")
    except Exception as e:
        print(f"❌ Error reading docker-compose.yml: {e}")
        return False
    
    return True

def verify_requirements():
    """Verify requirements file"""
    print("\nVerifying requirements...")
    
    try:
        with open("requirements.txt", "r") as f:
            content = f.read()
            required_packages = ["fastapi", "uvicorn", "python-multipart"]
            
            for package in required_packages:
                if package in content:
                    print(f"✅ Found required package: {package}")
                else:
                    print(f"❌ Missing required package: {package}")
                    return False
                    
        print("✅ All required packages found in requirements.txt")
        return True
    except Exception as e:
        print(f"❌ Error reading requirements.txt: {e}")
        return False

def main():
    """Main verification function"""
    print("Enhanced DOCX to PDF Converter - Setup Verification")
    print("=" * 50)
    
    # Run all verification checks
    checks = [
        verify_directory_structure,
        verify_python_compilation,
        verify_docker_files,
        verify_requirements
    ]
    
    all_passed = True
    for check in checks:
        if not check():
            all_passed = False
    
    print("\n" + "=" * 50)
    if all_passed:
        print("✅ All verification checks passed!")
        print("\nYour Enhanced DOCX to PDF Converter is ready for use.")
        print("To start the service, run:")
        print("  docker-compose up --build")
        print("\nThen access the API at http://localhost:8000")
        print("API documentation is available at http://localhost:8000/docs")
    else:
        print("❌ Some verification checks failed.")
        print("Please review the errors above and correct them before proceeding.")
    
    return all_passed

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