#!/usr/bin/env python
"""
Test runner script for vgui-cicd project.
Provides convenient shortcuts for running different test suites.
"""

import sys
import os
from django.core.management import execute_from_command_line


def main():
    """Run tests based on command line arguments."""
    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'VorgabenUI.settings')
    
    if len(sys.argv) > 1:
        command = sys.argv[1]
        
        if command == 'all':
            # Run all tests
            execute_from_command_line(['manage.py', 'test', '--verbosity=2'])
        
        elif command == 'cache':
            # Run only cache tests
            execute_from_command_line(['manage.py', 'test', 'diagramm_proxy', '--verbosity=2'])
        
        elif command == 'render':
            # Run only rendering tests
            execute_from_command_line(['manage.py', 'test', 'abschnitte.tests', '--verbosity=2'])
        
        elif command == 'commands':
            # Run only management command tests
            execute_from_command_line(['manage.py', 'test', 'abschnitte.management.commands', '--verbosity=2'])
        
        elif command == 'coverage':
            # Run tests with coverage
            try:
                import coverage
                cov = coverage.Coverage(source=['.'])
                cov.start()
                
                execute_from_command_line(['manage.py', 'test', '--verbosity=2'])
                
                cov.stop()
                cov.save()
                
                print('\n' + '='*70)
                print('COVERAGE REPORT')
                print('='*70)
                cov.report()
                
                print('\nHTML coverage report generated in htmlcov/')
                cov.html_report()
                
            except ImportError:
                print('ERROR: coverage.py not installed.')
                print('Install with: pip install coverage')
                sys.exit(1)
        
        elif command == 'fast':
            # Run tests with failfast
            execute_from_command_line(['manage.py', 'test', '--failfast', '--verbosity=2'])
        
        elif command == 'help':
            print_help()
        
        else:
            # Pass through to Django test runner
            execute_from_command_line(['manage.py', 'test'] + sys.argv[1:])
    
    else:
        print_help()


def print_help():
    """Print help message."""
    help_text = """
Usage: python run_tests.py [command]

Commands:
  all         Run all tests
  cache       Run diagram cache tests only
  render      Run rendering tests only
  commands    Run management command tests only
  coverage    Run tests with coverage report
  fast        Run tests with fail-fast option
  help        Show this help message

Advanced:
  You can also pass standard Django test arguments:
    python run_tests.py <app_label>
    python run_tests.py <app_label.TestCase>
    python run_tests.py <app_label.TestCase.test_method>

Examples:
  python run_tests.py all
  python run_tests.py cache
  python run_tests.py coverage
  python run_tests.py diagramm_proxy.test_diagram_cache.DiagramCacheTestCase
  python run_tests.py abschnitte.tests.RenderTextabschnitteTestCase.test_render_diagram_success

For more options, see Documentation/TESTING.md
"""
    print(help_text)


if __name__ == '__main__':
    main()