#!/usr/bin/env python3
"""
Unit tests for CLI tool
"""

import unittest
import tempfile
import os
import json
import shutil
from unittest.mock import patch, MagicMock
from io import StringIO
import sys
from pathlib import Path

# Add api directory to path
api_dir = Path(__file__).parent.parent / 'api'
sys.path.insert(0, str(api_dir))

# Import from api package instead of tests package
try:
    from cell_cli import api_request, show_status, list_peers, add_peer, remove_peer, show_config, update_config
except ImportError:
    # Fallback for when running from tests directory
    import sys
    sys.path.append('..')
    from api.cell_cli import api_request, show_status, list_peers, add_peer, remove_peer, show_config, update_config

class TestCLITool(unittest.TestCase):
    """Test cases for CLI tool functions"""
    
    def setUp(self):
        """Set up test environment"""
        self.test_dir = tempfile.mkdtemp()
        self.data_dir = os.path.join(self.test_dir, 'data')
        os.makedirs(self.data_dir, exist_ok=True)
    
    def tearDown(self):
        """Clean up test environment"""
        shutil.rmtree(self.test_dir)
    
    @patch('requests.get')
    def test_api_request_get_success(self, mock_get):
        """Test successful GET request"""
        mock_response = MagicMock()
        mock_response.json.return_value = {'status': 'success'}
        mock_response.raise_for_status.return_value = None
        mock_get.return_value = mock_response
        
        result = api_request('GET', '/test')
        self.assertEqual(result, {'status': 'success'})
    
    @patch('requests.get')
    def test_api_request_get_failure(self, mock_get):
        """Test failed GET request"""
        import requests
        mock_get.side_effect = requests.exceptions.RequestException("Connection error")
        result = api_request('GET', '/test')
        self.assertIsNone(result)
    
    @patch('requests.post')
    def test_api_request_post_success(self, mock_post):
        """Test successful POST request"""
        mock_response = MagicMock()
        mock_response.json.return_value = {'message': 'success'}
        mock_response.raise_for_status.return_value = None
        mock_post.return_value = mock_response
        
        result = api_request('POST', '/test', {'data': 'test'})
        self.assertEqual(result, {'message': 'success'})
    
    @patch('requests.put')
    def test_api_request_put_success(self, mock_put):
        """Test successful PUT request"""
        mock_response = MagicMock()
        mock_response.json.return_value = {'message': 'updated'}
        mock_response.raise_for_status.return_value = None
        mock_put.return_value = mock_response
        
        result = api_request('PUT', '/test', {'data': 'test'})
        self.assertEqual(result, {'message': 'updated'})
    
    @patch('requests.delete')
    def test_api_request_delete_success(self, mock_delete):
        """Test successful DELETE request"""
        mock_response = MagicMock()
        mock_response.json.return_value = {'message': 'deleted'}
        mock_response.raise_for_status.return_value = None
        mock_delete.return_value = mock_response
        
        result = api_request('DELETE', '/test')
        self.assertEqual(result, {'message': 'deleted'})
    
    @patch("api.cell_cli.api_request")
    def test_show_status(self, mock_api_request):
        """Test show_status function"""
        mock_api_request.return_value = {
            'cell_name': 'testcell',
            'domain': 'testcell.cell',
            'peers_count': 2,
            'uptime': 3600,
            'services': {
                'dns': True,
                'dhcp': True,
                'ntp': False
            }
        }
        
        # Capture stdout
        captured_output = StringIO()
        sys.stdout = captured_output
        
        show_status()
        
        # Restore stdout
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('testcell', output)
        self.assertIn('2', output)
        self.assertIn('3600', output)
    
    @patch("api.cell_cli.api_request")
    def test_list_peers_empty(self, mock_api_request):
        """Test list_peers with empty list"""
        mock_api_request.return_value = []
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        list_peers()
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('No peers configured', output)
    
    @patch("api.cell_cli.api_request")
    def test_list_peers_with_data(self, mock_api_request):
        """Test list_peers with peer data"""
        mock_api_request.return_value = [
            {
                'name': 'testpeer',
                'ip': '192.168.1.100',
                'public_key': 'testkey123456789',
                'added_at': '2024-01-01T00:00:00'
            }
        ]
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        list_peers()
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('testpeer', output)
        self.assertIn('192.168.1.100', output)
        self.assertIn('testkey123456789', output)
    
    @patch("api.cell_cli.api_request")
    def test_add_peer_success(self, mock_api_request):
        """Test add_peer success"""
        mock_api_request.return_value = {'message': 'Peer added successfully'}
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        add_peer('testpeer', '192.168.1.100', 'testkey123')
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('✅', output)
        self.assertIn('successfully', output)
    
    @patch("api.cell_cli.api_request")
    def test_add_peer_failure(self, mock_api_request):
        """Test add_peer failure"""
        mock_api_request.return_value = None
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        add_peer('testpeer', '192.168.1.100', 'testkey123')
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('❌', output)
        self.assertIn('Failed', output)
    
    @patch("api.cell_cli.api_request")
    def test_remove_peer_success(self, mock_api_request):
        """Test remove_peer success"""
        mock_api_request.return_value = {'message': 'Peer removed successfully'}
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        remove_peer('testpeer')
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('✅', output)
        self.assertIn('successfully', output)
    
    @patch("api.cell_cli.api_request")
    def test_show_config(self, mock_api_request):
        """Test show_config function"""
        mock_api_request.return_value = {
            'network': {
                'dns_port': 53,
                'dhcp_range': '192.168.1.100-200'
            },
            'wireguard': {
                'port': 51820,
                'address': '10.0.0.1/24'
            }
        }
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        show_config()
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('53', output)
        self.assertIn('51820', output)
    
    @patch("api.cell_cli.api_request")
    def test_update_config_success(self, mock_api_request):
        """Test update_config success"""
        mock_api_request.return_value = {'message': 'Configuration updated successfully'}
        
        captured_output = StringIO()
        sys.stdout = captured_output
        
        update_config('network', {'dns_port': 5353})
        
        sys.stdout = sys.__stdout__
        
        output = captured_output.getvalue()
        self.assertIn('✅', output)
        self.assertIn('successfully', output)

class TestEnhancedCLI(unittest.TestCase):
    """Test the enhanced CLI functionality"""
    
    def setUp(self):
        self.temp_dir = tempfile.mkdtemp()
        self.config_file = os.path.join(self.temp_dir, 'cli_config.json')
        
        # Mock API client
        self.mock_api_client = MagicMock()
        self.mock_api_client.get.return_value = {'status': 'ok'}
        self.mock_api_client.post.return_value = {'success': True}
    
    def tearDown(self):
        shutil.rmtree(self.temp_dir)
    
    def test_api_client(self):
        """Test API client functionality"""
        with patch('enhanced_cli.requests.get') as mock_get, \
             patch('enhanced_cli.requests.post') as mock_post:
            
            mock_get.return_value.json.return_value = {'status': 'ok'}
            mock_get.return_value.status_code = 200
            
            mock_post.return_value.json.return_value = {'success': True}
            mock_post.return_value.status_code = 200
            
            client = EnhancedCLI('http://localhost:5000')
            
            # Test GET request
            response = client.get('/api/status')
            self.assertEqual(response['status'], 'ok')
            
            # Test POST request
            response = client.post('/api/config', {'test': 'data'})
            self.assertEqual(response['success'], True)
    
    def test_cli_config_manager(self):
        """Test CLI config manager"""
        config_manager = CLIConfigManager(self.config_file)
        
        # Test setting and getting config
        config_manager.set('api_url', 'http://localhost:5000')
        config_manager.set('timeout', 30)
        
        self.assertEqual(config_manager.get('api_url'), 'http://localhost:5000')
        self.assertEqual(config_manager.get('timeout'), 30)
        
        # Test default values
        self.assertEqual(config_manager.get('nonexistent', 'default'), 'default')
        
        # Test saving and loading
        config_manager.save()
        
        new_config_manager = CLIConfigManager(self.config_file)
        self.assertEqual(new_config_manager.get('api_url'), 'http://localhost:5000')
    
    def test_cli_commands(self):
        """Test CLI commands"""
        with patch('enhanced_cli.APIClient') as mock_client_class:
            mock_client = MagicMock()
            mock_client_class.return_value = mock_client
            
            # Mock API responses
            mock_client.get.return_value = {
                'status': 'online',
                'services': ['network', 'wireguard']
            }
            mock_client.post.return_value = {'success': True}
            
            cli = EnhancedCLI('http://localhost:5000')
            
            # Test status command
            with patch('builtins.print') as mock_print:
                cli.show_status()
                mock_print.assert_called()
            
            # Test service commands
            with patch('builtins.print') as mock_print:
                cli.list_services()
                mock_print.assert_called()
            
            # Test configuration commands
            with patch('builtins.print') as mock_print:
                cli.show_config()
                mock_print.assert_called()
    
    def test_interactive_mode(self):
        """Test interactive mode"""
        with patch('enhanced_cli.APIClient') as mock_client_class:
            mock_client = MagicMock()
            mock_client_class.return_value = mock_client
            mock_client.get.return_value = {'status': 'ok'}
            
            cli = EnhancedCLI('http://localhost:5000')
            
            # Test interactive mode setup
            with patch('builtins.input', return_value='quit'), \
                 patch('builtins.print') as mock_print:
                cli.interactive_mode()
                mock_print.assert_called()
    
    def test_batch_operations(self):
        """Test batch operations"""
        with patch('enhanced_cli.APIClient') as mock_client_class:
            mock_client = MagicMock()
            mock_client_class.return_value = mock_client
            mock_client.post.return_value = {'success': True}
            
            cli = EnhancedCLI('http://localhost:5000')
            
            # Test batch service start
            services = ['network', 'wireguard']
            with patch('builtins.print') as mock_print:
                cli.batch_start_services(services)
                mock_print.assert_called()
            
            # Test batch service stop
            with patch('builtins.print') as mock_print:
                cli.batch_stop_services(services)
                mock_print.assert_called()
    
    def test_service_wizards(self):
        """Test service wizards"""
        with patch('enhanced_cli.APIClient') as mock_client_class:
            mock_client = MagicMock()
            mock_client_class.return_value = mock_client
            mock_client.post.return_value = {'success': True}
            
            cli = EnhancedCLI('http://localhost:5000')
            
            # Test network setup wizard
            with patch('builtins.input', side_effect=['192.168.1.1', '255.255.255.0', '53']), \
                 patch('builtins.print') as mock_print:
                cli.network_setup_wizard()
                mock_print.assert_called()
            
            # Test WireGuard setup wizard
            with patch('builtins.input', side_effect=['51820', '10.0.0.1/24']), \
                 patch('builtins.print') as mock_print:
                cli.wireguard_setup_wizard()
                mock_print.assert_called()
    
    def test_error_handling(self):
        """Test error handling"""
        with patch('enhanced_cli.APIClient') as mock_client_class:
            mock_client = MagicMock()
            mock_client_class.return_value = mock_client
            mock_client.get.side_effect = Exception("Connection failed")
            
            cli = EnhancedCLI('http://localhost:5000')
            
            # Test error handling in status command
            with patch('builtins.print') as mock_print:
                cli.show_status()
                # Should handle the exception gracefully
                mock_print.assert_called()

if __name__ == '__main__':
    unittest.main()