import argparse
import sys
from runner import TestRunner


def main():
    """Command-line interface for HTTP API testing framework."""
    parser = argparse.ArgumentParser(
        description="HTTP API Testing Framework",
        formatter_class=argparse.RawDescriptionHelpFormatter,
        epilog="""
Examples:
  python cli.py --suite tests.yaml
  python cli.py --suite tests.yaml --base-url https://api.example.com
  python cli.py --suite tests.yaml --base-url https://api.example.com --verbose
  python cli.py --suite tests.yaml --output report.txt
        """
    )
    
    parser.add_argument(
        '--suite',
        required=True,
        help='Path to YAML test suite file'
    )
    
    parser.add_argument(
        '--base-url',
        help='Base URL for API endpoints (can be overridden by suite file)'
    )
    
    parser.add_argument(
        '--verbose', '-v',
        action='store_true',
        help='Show detailed test results including passed tests'
    )
    
    parser.add_argument(
        '--output', '-o',
        help='Save report to specified file'
    )
    
    parser.add_argument(
        '--quiet', '-q',
        action='store_true',
        help='Suppress console output except for final summary'
    )
    
    args = parser.parse_args()
    
    try:
        # Initialize test runner
        runner = TestRunner(base_url=args.base_url or "")
        
        if not args.quiet:
            print(f"Loading test suite: {args.suite}")
            if args.base_url:
                print(f"Base URL: {args.base_url}")
            print("Starting test execution...")
            print()
        
        # Execute tests
        reporter = runner.run_test_suite(args.suite)
        
        # Generate and display report
        if not args.quiet:
            print(reporter.generate_report(verbose=args.verbose))
        else:
            reporter.print_summary()
        
        # Save report to file if requested
        if args.output:
            reporter.save_report(args.output, verbose=args.verbose)
            if not args.quiet:
                print(f"Report saved to: {args.output}")
        
        # Exit with appropriate code
        failed_tests = len(reporter.get_failed_tests())
        if failed_tests > 0:
            sys.exit(1)
        else:
            sys.exit(0)
            
    except FileNotFoundError as e:
        print(f"Error: {e}", file=sys.stderr)
        sys.exit(2)
    except ValueError as e:
        print(f"Error: {e}", file=sys.stderr)
        sys.exit(2)
    except KeyboardInterrupt:
        print("\nTest execution interrupted by user", file=sys.stderr)
        sys.exit(130)
    except Exception as e:
        print(f"Unexpected error: {e}", file=sys.stderr)
        sys.exit(1)


if __name__ == '__main__':
    main()