import time
import threading


class MockChiller:
    def __init__(self, port: str = "MOCK"):
        self.port = port
        self._current_temperature: float = 25.0  # 室温开始
        self._target_temperature: float = 25.0
        self._status: str = "Idle"
        self._is_cooling: bool = False
        self._is_heating: bool = False
        self._power_on: bool = False

        # 模拟温度变化的线程
        self._temperature_thread = None
        self._running = False

    @property
    def current_temperature(self) -> float:
        """当前温度 - 会被自动识别的设备属性"""
        return self._current_temperature

    @property
    def target_temperature(self) -> float:
        """目标温度"""
        return self._target_temperature

    @property
    def status(self) -> str:
        """设备状态 - 会被自动识别的设备属性"""
        return self._status

    @property
    def power_on(self) -> bool:
        """电源状态"""
        return self._power_on

    @property
    def is_cooling(self) -> bool:
        """是否正在冷却"""
        return self._is_cooling

    @property
    def is_heating(self) -> bool:
        """是否正在加热"""
        return self._is_heating

    def set_temperature(self, temperature: float):
        """设置目标温度 - 需要在注册表添加的设备动作"""
        if not self._power_on:
            self._status = "Error: Power Off"
            return False

        # 将传入温度转换为 float，并限制在允许范围内
        temperature = float(temperature)
        self._target_temperature = temperature

        # 立即更新状态
        diff = self._target_temperature - self._current_temperature
        if abs(diff) < 0.1:
            self._status = "At Target Temperature"
            self._is_cooling = False
            self._is_heating = False
        elif diff < 0:
            self._status = "Cooling"
            self._is_cooling = True
            self._is_heating = False
        else:
            self._status = "Heating"
            self._is_heating = True
            self._is_cooling = False

        # 启动温度控制
        self._start_temperature_control()
        return True

    def power_on_off(self, power_state: str):
        """开关机控制"""
        if power_state == "on":
            self._power_on = True
            # 不在这里直接设置状态和加热/制冷标志
            self._start_temperature_control()
        else:
            self._power_on = False
            self._status = "Power Off"
            self._stop_temperature_control()
            self._is_cooling = False
            self._is_heating = False

    def _start_temperature_control(self):
        """启动温度控制线程"""
        if self._power_on:  # 移除 not self._running 检查
            self._running = True
            if self._temperature_thread is None or not self._temperature_thread.is_alive():
                self._temperature_thread = threading.Thread(target=self._temperature_control_loop)
                self._temperature_thread.daemon = True
                self._temperature_thread.start()

    def _stop_temperature_control(self):
        """停止温度控制"""
        self._running = False
        if self._temperature_thread:
            self._temperature_thread.join(timeout=1.0)

    def _temperature_control_loop(self):
        """温度控制循环 - 模拟真实冷却器的温度变化"""
        while self._running and self._power_on:
            temp_diff = self._target_temperature - self._current_temperature

            if abs(temp_diff) < 0.1:  # 将判断范围从0.5改小到0.1
                self._status = "At Target Temperature"
                self._is_cooling = False
                self._is_heating = False
            elif temp_diff < 0:  # 需要冷却
                self._status = "Cooling"
                self._is_cooling = True
                self._is_heating = False
                # 模拟冷却过程，每秒降低0.5度
                self._current_temperature -= 0.5
            else:  # 需要加热
                self._status = "Heating"
                self._is_heating = True
                self._is_cooling = False
                # 模拟加热过程，每秒升高0.3度
                self._current_temperature += 0.3

            # 限制温度范围
            self._current_temperature = max(-20.0, min(80.0, self._current_temperature))

            time.sleep(1.0)  # 每秒更新一次

    def emergency_stop(self):
        """紧急停止"""
        self._status = "Emergency Stop"
        self._stop_temperature_control()
        self._is_cooling = False
        self._is_heating = False

    def get_status_info(self) -> dict:
        """获取完整状态信息"""
        return {
            "current_temperature": self._current_temperature,
            "target_temperature": self._target_temperature,
            "status": self._status,
            "power_on": self._power_on,
            "is_cooling": self._is_cooling,
            "is_heating": self._is_heating,
        }


# 用于测试的主函数
if __name__ == "__main__":
    chiller = MockChiller()

    # 测试基本功能
    print("启动冷却器测试...")
    chiller.power_on_off("on")
    print(f"初始状态: {chiller.get_status_info()}")

    # 设置目标温度为5度
    chiller.set_temperature(5.0)

    # 模拟运行10秒
    for i in range(10):
        time.sleep(1)
        print(f"第{i+1}秒: 当前温度={chiller.current_temperature:.1f}°C, 状态={chiller.status}")

    chiller.emergency_stop()
    print("测试完成")