# test_config.py - 配置模組測試
"""
Tests for Config class.
"""

import os
import pytest
from pathlib import Path

import sys
sys.path.insert(0, str(Path(__file__).parent.parent))

from src.config import Config


class TestConfig:
    """Config 測試套件"""
    
    def test_default_values(self):
        """測試默認值"""
        assert Config.DEVICE_ID == os.getenv("MATRIX_DEVICE_ID", "PROJECT_M_BOT")
        assert Config.STORE_PATH == os.getenv("STORE_PATH", "store")
    
    def test_token_json_key(self):
        """測試 Token JSON Key 路徑"""
        assert Config.TOKEN_JSON_KEY == "channels.matrix.accessToken"
    
    def test_validate_missing_config(self):
        """測試配置驗證（缺少配置時）"""
        # 臨時清空環境變量
        original_server = os.environ.get("MATRIX_SERVER")
        original_user = os.environ.get("MATRIX_USER_ID")
        original_password = os.environ.get("MATRIX_PASSWORD")
        
        try:
            os.environ["MATRIX_SERVER"] = ""
            os.environ["MATRIX_USER_ID"] = ""
            os.environ["MATRIX_PASSWORD"] = ""
            
            # 重新載入配置類的值
            Config.MATRIX_SERVER = ""
            Config.MATRIX_USER_ID = ""
            Config.MATRIX_PASSWORD = ""
            
            is_valid, missing = Config.validate()
            
            assert is_valid is False
            assert "MATRIX_SERVER" in missing
            assert "MATRIX_USER_ID" in missing
            assert "MATRIX_PASSWORD" in missing
        finally:
            # 恢復原值
            if original_server:
                os.environ["MATRIX_SERVER"] = original_server
            if original_user:
                os.environ["MATRIX_USER_ID"] = original_user
            if original_password:
                os.environ["MATRIX_PASSWORD"] = original_password
    
    def test_get_openclaw_path_with_tilde(self):
        """測試 ~ 路徑展開"""
        Config.OPENCLAW_JSON_PATH = "~/.openclaw/openclaw.json"
        
        path = Config.get_openclaw_path()
        
        assert isinstance(path, Path)
        assert str(path).startswith(str(Path.home()))
        assert "~" not in str(path)
    
    def test_get_openclaw_path_absolute(self):
        """測試絕對路徑"""
        Config.OPENCLAW_JSON_PATH = "/tmp/test/openclaw.json"
        
        path = Config.get_openclaw_path()
        
        assert path == Path("/tmp/test/openclaw.json")