"""
测试工具配置管理模块
"""

import os
import re
from pathlib import Path
from typing import Dict, Any
import yaml


class TestConfig:
    """测试配置类"""
    
    def __init__(self, config_path: str = None):
        """
        初始化配置
        
        Args:
            config_path: 配置文件路径，默认为config/test_config.yaml
        """
        if config_path is None:
            config_path = Path(__file__).parent.parent / "config" / "test_config.yaml"
        
        self.config_path = Path(config_path)
        self.config = self._load_config()
    
    def _load_config(self) -> Dict[str, Any]:
        """
        加载配置文件
        
        Returns:
            配置字典
        """
        if not self.config_path.exists():
            return self._get_default_config()
        
        try:
            with open(self.config_path, 'r', encoding='utf-8') as f:
                config = yaml.safe_load(f)
                return self._resolve_env_vars(config)
        except Exception as e:
            print(f"加载配置文件失败: {e}")
            return self._get_default_config()
    
    def _resolve_env_vars(self, config: Any) -> Any:
        """
        解析环境变量
        
        Args:
            config: 配置对象
            
        Returns:
            解析后的配置对象
        """
        if isinstance(config, dict):
            return {k: self._convert_type(self._resolve_env_vars(v)) for k, v in config.items()}
        elif isinstance(config, list):
            return [self._convert_type(self._resolve_env_vars(item)) for item in config]
        elif isinstance(config, str):
            return self._convert_type(self._parse_env_var(config))
        else:
            return self._convert_type(config)
    
    def _parse_env_var(self, value: str) -> str:
        """
        解析环境变量
        
        Args:
            value: 配置值
            
        Returns:
            解析后的值
        """
        pattern = r'\$\{([^:}]+)(?::([^}]*))?\}'
        match = re.search(pattern, value)
        
        if match:
            env_var = match.group(1)
            default_value = match.group(2) if match.group(2) else ""
            return os.getenv(env_var, default_value)
        
        return value
    
    def _convert_type(self, value: Any) -> Any:
        """
        类型转换
        
        Args:
            value: 配置值
            
        Returns:
            转换后的值
        """
        if isinstance(value, str):
            if value.isdigit():
                return int(value)
            try:
                return float(value)
            except ValueError:
                pass
            if value.lower() in ('true', 'false'):
                return value.lower() == 'true'
        return value
    
    def _get_default_config(self) -> Dict[str, Any]:
        """
        获取默认配置
        
        Returns:
            默认配置字典
        """
        return {
            "api": {
                "base_url": os.getenv("TEST_TOOLS_API_BASE_URL", "http://127.0.0.1:8080/api"),
                "timeout": int(os.getenv("TEST_TOOLS_API_TIMEOUT", "30")),
                "max_retries": int(os.getenv("TEST_TOOLS_API_MAX_RETRIES", "3"))
            },
            "auth": {
                "login_endpoint": "/sys/auth/login",
                "username": os.getenv("TEST_TOOLS_AUTH_USERNAME", "admin"),
                "password": os.getenv("TEST_TOOLS_AUTH_PASSWORD", "admin123"),
                "token_storage": "memory"
            },
            "test": {
                "data_dir": "data",
                "test_cases_dir": "test_cases",
                "parallel": True,
                "retry_count": 2
            },
            "report": {
                "output_dir": "../test-results/test-tools/reports",
                "formats": ["json", "html"],
                "include_details": True
            },
            "logging": {
                "level": "INFO",
                "file": "../test-results/test-tools/logs/test.log",
                "format": "%(asctime)s - %(name)s - %(levelname)s - %(message)s",
                "console": True
            }
        }
    
    def get(self, key: str, default: Any = None) -> Any:
        """
        获取配置值
        
        Args:
            key: 配置键，支持点号分隔的嵌套键（如"api.base_url"）
            default: 默认值
            
        Returns:
            配置值
        """
        keys = key.split('.')
        value = self.config
        
        for k in keys:
            if isinstance(value, dict) and k in value:
                value = value[k]
            else:
                return default
        
        return value
    
    def set(self, key: str, value: Any) -> None:
        """
        设置配置值
        
        Args:
            key: 配置键，支持点号分隔的嵌套键
            value: 配置值
        """
        keys = key.split('.')
        config = self.config
        
        for k in keys[:-1]:
            if k not in config:
                config[k] = {}
            config = config[k]
        
        config[keys[-1]] = value
    
    def save(self) -> None:
        """保存配置到文件"""
        self.config_path.parent.mkdir(parents=True, exist_ok=True)
        
        with open(self.config_path, 'w', encoding='utf-8') as f:
            yaml.dump(self.config, f, default_flow_style=False, allow_unicode=True)
    
    @property
    def api_base_url(self) -> str:
        """获取API基础URL"""
        return self.get("api.base_url")
    
    @property
    def api_timeout(self) -> int:
        """获取API超时时间"""
        return self.get("api.timeout")
    
    @property
    def api_max_retries(self) -> int:
        """获取API最大重试次数"""
        return self.get("api.max_retries")
    
    @property
    def auth_login_endpoint(self) -> str:
        """获取登录端点"""
        return self.get("auth.login_endpoint")
    
    @property
    def auth_username(self) -> str:
        """获取测试用户名"""
        return self.get("auth.username")
    
    @property
    def auth_password(self) -> str:
        """获取测试密码"""
        return self.get("auth.password")
    
    @property
    def report_output_dir(self) -> str:
        """获取报告输出目录"""
        return self.get("report.output_dir")
    
    @property
    def report_formats(self) -> list:
        """获取报告格式"""
        return self.get("report.formats")
    
    @property
    def logging_level(self) -> str:
        """获取日志级别"""
        return self.get("logging.level")
    
    @property
    def logging_file(self) -> str:
        """获取日志文件路径"""
        return self.get("logging.file")
    
    @property
    def logging_console(self) -> bool:
        """获取是否输出到控制台"""
        return self.get("logging.console", True)


# 全局配置实例
config = TestConfig()