"""
Minimal deployment verification script for GAIA Agent
"""

import os
import sys
from datetime import datetime
import traceback

def print_header(message):
    print("\n" + "=" * 50)
    print(message)
    print("=" * 50)

def check_file_structure():
    """Check if critical files are present."""
    print_header("Checking file structure")
    
    critical_files = [
        "app.py",
        "requirements.txt",
        "agent/config.py",
        "agent/agent.py"
    ]
    
    missing_files = []
    for file_path in critical_files:
        if not os.path.exists(file_path):
            missing_files.append(file_path)
            print(f"[FAIL] Missing critical file: {file_path}")
        else:
            print(f"[PASS] Found file: {file_path}")
    
    return len(missing_files) == 0, missing_files

def check_env_vars():
    """Check if critical environment variables are accessible."""
    print_header("Checking environment variables")
    
    critical_vars = [
        "OPENAI_API_KEY",
        "SUPABASE_URL",
        "SUPABASE_KEY"
    ]
    
    missing_vars = []
    for var_name in critical_vars:
        var_value = os.getenv(var_name, "")
        if not var_value:
            missing_vars.append(var_name)
            print(f"[FAIL] Missing environment variable: {var_name}")
        else:
            print(f"[PASS] Found environment variable: {var_name}")
    
    return len(missing_vars) == 0, missing_vars

def check_packages():
    """Check if requirements.txt contains critical packages."""
    print_header("Checking requirements.txt packages")
    
    critical_packages = [
        "openai",
        "gradio",
        "langchain"
    ]
    
    if not os.path.exists("requirements.txt"):
        print("[FAIL] requirements.txt file not found")
        return False, ["requirements.txt file not found"]
    
    try:
        with open("requirements.txt", "r") as f:
            content = f.read().lower()
        
        missing_packages = []
        for package in critical_packages:
            if package.lower() not in content:
                missing_packages.append(package)
                print(f"[FAIL] Missing package in requirements.txt: {package}")
            else:
                print(f"[PASS] Found package in requirements.txt: {package}")
        
        return len(missing_packages) == 0, missing_packages
    except Exception as e:
        print(f"[ERROR] Error reading requirements.txt: {str(e)}")
        return False, [f"Error reading requirements.txt: {str(e)}"]

def main():
    """Run minimal verification checks."""
    try:
        print_header(f"GAIA Agent Minimal Verification - {datetime.now()}")
        
        # Run checks
        file_check = check_file_structure()
        env_check = check_env_vars()
        pkg_check = check_packages()
        
        # Print summary
        print_header("Verification Summary")
        print(f"File structure check: {'[PASS]' if file_check[0] else '[FAIL]'}")
        print(f"Environment variables check: {'[PASS]' if env_check[0] else '[FAIL]'}")
        print(f"Package requirements check: {'[PASS]' if pkg_check[0] else '[FAIL]'}")
        
        # Overall status
        if file_check[0] and env_check[0] and pkg_check[0]:
            print("\n[SUCCESS] All checks passed. Basic deployment verification successful.")
            return 0
        else:
            print("\n[FAILURE] Some checks failed. Please address the issues before deployment.")
            return 1
            
    except Exception as e:
        print_header("ERROR OCCURRED")
        print(f"Error during verification: {str(e)}")
        print("\nTraceback:")
        traceback.print_exc()
        return 1

if __name__ == "__main__":
    sys.exit(main())