"""
Global pytest fixtures and configuration for Clean Tracks tests.
"""

import os
import sys
import tempfile
import shutil
from pathlib import Path
from unittest.mock import Mock, MagicMock

import pytest
from flask import Flask
from flask_socketio import SocketIO

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


# Test data directory
TEST_DATA_DIR = Path(__file__).parent / 'test_data'


@pytest.fixture(scope='session')
def test_data_dir():
    """Provide path to test data directory."""
    return TEST_DATA_DIR


@pytest.fixture
def temp_dir():
    """Create a temporary directory for test files."""
    temp_dir = tempfile.mkdtemp()
    yield Path(temp_dir)
    # Cleanup
    shutil.rmtree(temp_dir, ignore_errors=True)


@pytest.fixture
def sample_audio_file(test_data_dir):
    """Provide path to sample audio file for testing."""
    audio_file = test_data_dir / 'sample.mp3'
    if not audio_file.exists():
        # Create a minimal valid MP3 file for testing
        # (In real tests, you'd have actual test audio files)
        audio_file.parent.mkdir(parents=True, exist_ok=True)
        audio_file.write_bytes(b'ID3')  # Minimal MP3 header
    return audio_file


@pytest.fixture
def mock_whisper_model():
    """Mock Whisper model for testing without loading actual model."""
    mock_model = Mock()
    mock_model.transcribe = Mock(return_value={
        'text': 'This is a test transcription with some bad words.',
        'segments': [
            {
                'id': 0,
                'start': 0.0,
                'end': 5.0,
                'text': 'This is a test transcription with some bad words.',
                'words': [
                    {'word': 'This', 'start': 0.0, 'end': 0.5, 'confidence': 0.9},
                    {'word': 'is', 'start': 0.5, 'end': 0.8, 'confidence': 0.95},
                    {'word': 'a', 'start': 0.8, 'end': 1.0, 'confidence': 0.92},
                    {'word': 'test', 'start': 1.0, 'end': 1.5, 'confidence': 0.88},
                ]
            }
        ]
    })
    return mock_model


@pytest.fixture
def app():
    """Create Flask application for testing."""
    from api import create_app
    
    test_config = {
        'TESTING': True,
        'SECRET_KEY': 'test-secret-key',
        'DATABASE_URL': 'sqlite:///:memory:',
        'UPLOAD_FOLDER': '/tmp/test-uploads',
        'MAX_CONTENT_LENGTH': 10 * 1024 * 1024,  # 10MB for tests
        'CORS_ORIGINS': '*'
    }
    
    app, socketio = create_app(test_config)
    
    # Create application context
    with app.app_context():
        yield app


@pytest.fixture
def client(app):
    """Create Flask test client."""
    return app.test_client()


@pytest.fixture
def socketio_client(app):
    """Create Socket.IO test client."""
    socketio = app.socketio
    return socketio.test_client(app)


@pytest.fixture
def runner(app):
    """Create Flask CLI runner for testing CLI commands."""
    return app.test_cli_runner()


@pytest.fixture
def mock_audio_processor():
    """Mock AudioProcessor for testing."""
    mock_processor = Mock()
    mock_processor.process_file = Mock(return_value={
        'words_detected': 5,
        'words_censored': 5,
        'audio_duration': 30.0,
        'output_file': 'output.mp3'
    })
    return mock_processor


@pytest.fixture
def mock_word_list():
    """Mock word list for testing."""
    return [
        {'word': 'badword1', 'severity': 'high', 'category': 'profanity'},
        {'word': 'badword2', 'severity': 'medium', 'category': 'inappropriate'},
        {'word': 'badword3', 'severity': 'low', 'category': 'slang'}
    ]


@pytest.fixture
def mock_job_manager():
    """Mock JobManager for WebSocket testing."""
    from api.websocket_enhanced import JobManager, JobMetrics
    
    manager = JobManager()
    job_id = manager.create_job()
    return manager, job_id


@pytest.fixture
def mock_websocket_emitter():
    """Mock WebSocket event emitter."""
    emitter = Mock()
    emitter.emit_progress = Mock()
    emitter.emit_completed = Mock()
    emitter.emit_error = Mock()
    return emitter


# Pytest plugins and hooks

def pytest_configure(config):
    """Configure pytest with custom settings."""
    # Set environment variables for testing
    os.environ['TESTING'] = 'true'
    os.environ['DEBUG'] = 'false'
    
    # Create test data directory if it doesn't exist
    TEST_DATA_DIR.mkdir(parents=True, exist_ok=True)


def pytest_unconfigure(config):
    """Clean up after pytest."""
    # Remove test environment variables
    os.environ.pop('TESTING', None)


def pytest_collection_modifyitems(config, items):
    """Modify test collection to add markers."""
    for item in items:
        # Add markers based on test location
        if 'unit' in str(item.fspath):
            item.add_marker(pytest.mark.unit)
        elif 'integration' in str(item.fspath):
            item.add_marker(pytest.mark.integration)
        elif 'e2e' in str(item.fspath):
            item.add_marker(pytest.mark.e2e)
        
        # Add markers based on test name
        if 'test_cli' in item.name:
            item.add_marker(pytest.mark.cli)
        elif 'test_websocket' in item.name:
            item.add_marker(pytest.mark.websocket)
        elif 'test_security' in item.name:
            item.add_marker(pytest.mark.security)
        elif 'test_performance' in item.name:
            item.add_marker(pytest.mark.performance)


# Helper functions for tests

def create_test_audio_file(path: Path, duration: float = 10.0):
    """Create a test audio file."""
    # In real implementation, this would create an actual audio file
    # For now, just create a dummy file
    path.parent.mkdir(parents=True, exist_ok=True)
    path.write_bytes(b'RIFF' + b'\x00' * 100)  # Minimal WAV header
    return path


def create_test_word_list_file(path: Path, words: list):
    """Create a test word list CSV file."""
    import csv
    
    path.parent.mkdir(parents=True, exist_ok=True)
    with open(path, 'w', newline='') as f:
        writer = csv.DictWriter(f, fieldnames=['word', 'severity', 'category'])
        writer.writeheader()
        writer.writerows(words)
    return path


class AsyncMock(MagicMock):
    """Mock for async functions."""
    async def __call__(self, *args, **kwargs):
        return super(AsyncMock, self).__call__(*args, **kwargs)