"""
Pytest 配置文件
提供全局的 fixture 和测试工具
"""
import os
import sys
import pytest
from pathlib import Path
import tempfile
import shutil

# 添加项目根目录到 Python 路径
project_root = Path(__file__).parent.parent.absolute()
sys.path.insert(0, str(project_root))
os.chdir(project_root)

from main import create_app
from app.settings import config


@pytest.fixture(scope='session')
def app():
    """创建 Flask 应用实例"""
    app = create_app()
    app.config['TESTING'] = True
    app.config['OUTPUT_DIR'] = tempfile.mkdtemp()
    app.config['INPUT_DIR'] = tempfile.mkdtemp()
    yield app


@pytest.fixture(scope='function')
def client(app):
    """创建测试客户端"""
    with app.test_client() as client:
        yield client


@pytest.fixture(scope='session')
def temp_dirs():
    """创建临时目录用于测试"""
    temp_dir = tempfile.mkdtemp()
    dirs = {
        'root': Path(temp_dir),
        'input': Path(temp_dir) / 'input',
        'output': Path(temp_dir) / 'output',
        'temp': Path(temp_dir) / 'temp'
    }
    for d in dirs.values():
        d.mkdir(parents=True, exist_ok=True)
    yield dirs
    shutil.rmtree(temp_dir)


@pytest.fixture(scope='function')
def clean_temp(temp_dirs):
    """清理临时目录"""
    yield temp_dirs
    for d in temp_dirs.values():
        if d.exists():
            for f in d.glob('*'):
                if f.is_file():
                    f.unlink()


@pytest.fixture
def sample_audio_file(temp_dirs):
    """创建示例音频文件路径（不实际创建文件）"""
    audio_path = temp_dirs['input'] / 'test_audio.wav'
    yield audio_path


@pytest.fixture
def sample_video_file(temp_dirs):
    """创建示例视频文件路径（不实际创建文件）"""
    video_path = temp_dirs['input'] / 'test_video.mp4'
    yield video_path