#!/usr/bin/env python3
"""
Basic test script for core functionality without GUI dependencies.
"""

import sys
from pathlib import Path

# Add project root to path
project_root = Path(__file__).parent.parent
sys.path.insert(0, str(project_root))

def test_imports():
    """Test that core modules can be imported."""
    print("Testing core module imports...")

    try:
        from core.credentials import CredentialManager
        print("✓ CredentialManager import successful")

        from utils.validators import validate_page_range, validate_username, validate_password
        print("✓ Validators import successful")

        from core.scraper import Scraper
        print("✓ Scraper import successful")

        return True
    except Exception as e:
        print(f"✗ Import failed: {e}")
        return False

def test_credential_manager():
    """Test basic credential manager functionality."""
    print("\nTesting credential manager...")

    try:
        from core.credentials import CredentialManager
        cm = CredentialManager("test_app")

        # Test default settings
        defaults = cm.get_default_settings()
        print(f"✓ Default settings: {len(defaults)} items")

        # Test validation
        validation = cm.validate_credentials("testuser", "testpass")
        print(f"✓ Credential validation: {validation['valid']}")

        # Test config file path
        config_path = cm.get_config_file_path()
        print(f"✓ Config file path: {config_path}")

        return True
    except Exception as e:
        print(f"✗ Credential manager test failed: {e}")
        return False

def test_validators():
    """Test validation functions."""
    print("\nTesting validators...")

    try:
        from utils.validators import validate_page_range, validate_username, validate_password

        # Test page range validation
        valid_range = validate_page_range(1, 5)
        print(f"✓ Valid page range (1-5): {valid_range['valid']}")

        invalid_range = validate_page_range(5, 1)
        print(f"✓ Invalid page range (5-1): {not invalid_range['valid']}")

        # Test username validation
        valid_username = validate_username("testuser")
        print(f"✓ Valid username: {valid_username['valid']}")

        invalid_username = validate_username("")
        print(f"✓ Invalid username (empty): {not invalid_username['valid']}")

        # Test password validation
        valid_password = validate_password("password123")
        print(f"✓ Valid password: {valid_password['valid']}")

        invalid_password = validate_password("")
        print(f"✓ Invalid password (empty): {not invalid_password['valid']}")

        return True
    except Exception as e:
        print(f"✗ Validator test failed: {e}")
        return False

def test_scraper_init():
    """Test scraper initialization without actually running it."""
    print("\nTesting scraper initialization...")

    try:
        # Test importing selenium
        import selenium
        print(f"✓ Selenium available: {selenium.__version__}")

        # Test callback mechanism
        events = []

        def test_callback(event_type, data):
            events.append((event_type, data))

        print("✓ Callback mechanism ready")

        # We won't actually create a Scraper instance since it requires Chrome
        # but we can test that the class is properly defined
        from core.scraper import Scraper

        # Check that the class has the expected methods
        expected_methods = ['login', 'scrape', 'trigger_download', 'human_delay', 'close']
        for method in expected_methods:
            if hasattr(Scraper, method):
                print(f"✓ Scraper has {method} method")
            else:
                print(f"✗ Scraper missing {method} method")
                return False

        return True
    except Exception as e:
        print(f"✗ Scraper test failed: {e}")
        return False

def test_project_structure():
    """Test that all expected files are present."""
    print("\nTesting project structure...")

    expected_files = [
        "core/__init__.py",
        "core/scraper.py",
        "core/credentials.py",
        "core/scraper_thread.py",
        "gui/__init__.py",
        "gui/main_window.py",
        "gui/login_dialog.py",
        "gui/progress_dialog.py",
        "utils/__init__.py",
        "utils/validators.py",
        "gui_main.py",
        "requirements.txt",
        "install_and_run.bat",
        "install_and_run.sh"
    ]

    missing_files = []
    for file_path in expected_files:
        full_path = project_root / file_path
        if full_path.exists():
            print(f"✓ {file_path}")
        else:
            print(f"✗ {file_path} missing")
            missing_files.append(file_path)

    if missing_files:
        print(f"\nMissing files: {len(missing_files)}")
        return False
    else:
        print(f"\n✓ All {len(expected_files)} expected files present")
        return True

def main():
    """Run all tests."""
    print("=== EBoek.info Scraper Core Test ===\n")

    tests = [
        ("Project Structure", test_project_structure),
        ("Module Imports", test_imports),
        ("Credential Manager", test_credential_manager),
        ("Validators", test_validators),
        ("Scraper Initialization", test_scraper_init),
    ]

    results = []

    for test_name, test_func in tests:
        print(f"\n{'='*50}")
        print(f"Running: {test_name}")
        print('='*50)

        try:
            result = test_func()
            results.append((test_name, result))
        except Exception as e:
            print(f"✗ Test '{test_name}' crashed: {e}")
            results.append((test_name, False))

    # Summary
    print(f"\n{'='*50}")
    print("TEST SUMMARY")
    print('='*50)

    passed = 0
    failed = 0

    for test_name, result in results:
        status = "PASS" if result else "FAIL"
        symbol = "✓" if result else "✗"
        print(f"{symbol} {test_name}: {status}")

        if result:
            passed += 1
        else:
            failed += 1

    print(f"\nResults: {passed} passed, {failed} failed")

    if failed == 0:
        print("\n🎉 All tests passed! The core functionality is ready.")
        print("\nNext steps:")
        print("1. Install PyQt5: pip install PyQt5")
        print("2. Run the GUI: python3 gui_main.py")
        print("3. Or use the installer: ./install_and_run.sh")
    else:
        print(f"\n⚠️  {failed} test(s) failed. Please check the errors above.")

    return failed == 0

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