#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
模拟设备模块，用于创建和管理模拟设备
"""

import random
import time
import logging

# 配置日志
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


class SimulatedDevice:
    """模拟设备类"""
    
    def __init__(self, device_id, device_type, status="stopped"):
        """
        初始化模拟设备
        
        Args:
            device_id (str): 设备ID
            device_type (str): 设备类型
            status (str): 初始状态
        """
        self.device_id = device_id
        self.device_type = device_type
        self.status = status
        self.created_at = time.time()
        logger.info(f"创建模拟设备: ID={device_id}, 类型={device_type}, 状态={status}")
    
    def control(self, action):
        """
        控制设备
        
        Args:
            action (str): 控制动作 ('on' 或 'off')
            
        Returns:
            dict: 控制结果
        """
        logger.info(f"控制设备 {self.device_id}: 动作={action}")
        
        if action == "on":
            self.status = "running"
            result = {
                "device_id": self.device_id,
                "status": "success",
                "message": f"设备 {self.device_id} 已开启"
            }
            logger.info(f"设备 {self.device_id} 开启成功")
            return result
        elif action == "off":
            self.status = "stopped"
            result = {
                "device_id": self.device_id,
                "status": "success",
                "message": f"设备 {self.device_id} 已关闭"
            }
            logger.info(f"设备 {self.device_id} 关闭成功")
            return result
        else:
            result = {
                "device_id": self.device_id,
                "status": "failed",
                "message": f"不支持的操作: {action}"
            }
            logger.warning(f"设备 {self.device_id} 不支持的操作: {action}")
            return result
    
    def get_status(self):
        """
        获取设备状态
        
        Returns:
            dict: 设备状态信息
        """
        logger.info(f"查询设备 {self.device_id} 状态")
        
        # 模拟一些随机的设备数据
        if self.status == "running":
            power = random.randint(200, 240)
            current = random.uniform(4.0, 6.0)
            result = {
                "device_id": self.device_id,
                "status": self.status,
                "power": power,
                "current": round(current, 2)
            }
            logger.info(f"设备 {self.device_id} 状态: 运行中, 功率={power}V, 电流={round(current, 2)}A")
            return result
        else:
            result = {
                "device_id": self.device_id,
                "status": self.status,
                "power": 0,
                "current": 0.0
            }
            logger.info(f"设备 {self.device_id} 状态: 已停止")
            return result


class DeviceManager:
    """设备管理器"""
    
    def __init__(self):
        """初始化设备管理器"""
        self.devices = {}
        logger.info("初始化设备管理器")
    
    def add_device(self, device):
        """
        添加设备
        
        Args:
            device (SimulatedDevice): 模拟设备实例
        """
        self.devices[device.device_id] = device
        logger.info(f"添加设备到管理器: {device.device_id}")
    
    def remove_device(self, device_id):
        """
        移除设备
        
        Args:
            device_id (str): 设备ID
        """
        if device_id in self.devices:
            del self.devices[device_id]
            logger.info(f"从管理器移除设备: {device_id}")
    
    def get_device(self, device_id):
        """
        获取设备
        
        Args:
            device_id (str): 设备ID
            
        Returns:
            SimulatedDevice: 设备实例，如果不存在则返回None
        """
        device = self.devices.get(device_id)
        if device:
            logger.debug(f"获取设备: {device_id}")
        else:
            logger.warning(f"尝试获取不存在的设备: {device_id}")
        return device
    
    def get_all_devices(self):
        """
        获取所有设备
        
        Returns:
            list: 所有设备实例的列表
        """
        logger.info(f"获取所有设备，共 {len(self.devices)} 个设备")
        return list(self.devices.values())
    
    def control_device(self, device_id, action):
        """
        控制指定设备
        
        Args:
            device_id (str): 设备ID
            action (str): 控制动作
            
        Returns:
            dict: 控制结果
        """
        logger.info(f"控制设备: ID={device_id}, 动作={action}")
        device = self.get_device(device_id)
        if device:
            return device.control(action)
        else:
            result = {
                "device_id": device_id,
                "status": "failed",
                "message": f"设备 {device_id} 不存在"
            }
            logger.error(f"控制设备失败: 设备 {device_id} 不存在")
            return result
    
    def query_device_status(self, device_id):
        """
        查询指定设备状态
        
        Args:
            device_id (str): 设备ID
            
        Returns:
            dict: 设备状态信息
        """
        logger.info(f"查询设备状态: ID={device_id}")
        device = self.get_device(device_id)
        if device:
            return device.get_status()
        else:
            result = {
                "device_id": device_id,
                "status": "failed",
                "message": f"设备 {device_id} 不存在"
            }
            logger.error(f"查询设备状态失败: 设备 {device_id} 不存在")
            return result
    
    def query_all_device_status(self):
        """
        查询所有设备状态
        
        Returns:
            list: 所有设备状态信息列表
        """
        logger.info("查询所有设备状态")
        statuses = []
        for device in self.devices.values():
            status_info = {
                "device_id": device.device_id,
                "device_type": device.device_type,
                "status": device.status
            }
            statuses.append(status_info)
            logger.debug(f"设备 {device.device_id} 状态: {device.status}")
        logger.info(f"查询所有设备状态完成，共 {len(statuses)} 个设备")
        return statuses