from time import sleep

import ujson
from machine import Pin,reset
import time
import network
from config import getConfig,saveConfig
from umqtt.simple import MQTTClient
import _thread
from dispatcher import Dispatcher
import urequests
import os
import device

led = Pin(8, Pin.OUT)
led.value(1)
tasks = Dispatcher()
def changeLed():
    """
    改变led
    :param t:
    :return:
    """
    if led.value() == 1:
        led.value(0)
    else:
        led.value(1)
def onFlickerLed(period):
    """
    闪烁led
    :param period: 周期 毫秒
    :return:
    """
    offFlickerLed()
    tasks.add_work(changeLed, period)

def offFlickerLed():
    """
    关闭闪烁
    :return:
    """
    tasks.del_work(changeLed)
def onLed():
    offFlickerLed()
    led.value(0)
def offLed():
    offFlickerLed()
    led.value(1)
def getLed():
    return led.value()

ap = None
# 开启热点
def openAp():
    global ap
    if not getConfig().openAp:
        ssid = getConfig().ap.ssid + '-' + getConfig().model + '-' + getConfig().id
        ap = network.WLAN(network.AP_IF) # 创捷一个AP热点接口
        ap.ifconfig(('192.168.5.1', '255.255.255.0', '192.168.5.1', '114.114.114.114'))
        ap.active(True)         # 激活接口
        ap.config(essid=ssid, authmode=network.AUTH_WPA_WPA2_PSK, password=getConfig().ap.pwd) # 设置AP的ESSID名称
        getConfig().openAp = True
        print('热点已开启', ssid, getConfig().ap.pwd)
def closeAp():
    if getConfig().openAp:
        ap.active(False)
        getConfig().openAp = False
        print('关闭热点')

# 创建 WIFI 连接对象
wlan = network.WLAN(network.STA_IF)
wlan.active(False)#先进行wlan的清除
wlan.active(True)#再激活

def scanWifi():
    """扫描WiFi"""
    wifis = wlan.scan()
    print("扫描WiFi结果：", wifis)
    return wifis

def getStatus():
    """获取WiFi连接状态"""
    return wlan.isconnected()

def getWifiConnectInfo():
    """获取已连接的WiFi信息"""
    return wlan.ifconfig()

def disconnectWifi():
    """断开当前连接的无线网络"""
    wlan.disconnect()

def connectWifi(ssid, pwd):
    """
    连接wifi
    :param ssid:
    :param pwd:
    :return:
    """
    print("开始连接", ssid, pwd)
    onFlickerLed(200)
    wlan.disconnect()
    getConfig().connectWifi.ssid = None
    getConfig().connectWifi.pwd = None
    wlan.connect(ssid, pwd)
    timeout = 0
    while not wlan.isconnected() and timeout < 10:
        timeout += 1
        time.sleep(1)
    offFlickerLed()
    if wlan.isconnected():
        print('WiFi已连接', wlan.ifconfig())
        getConfig().connectWifi.ssid = ssid
        getConfig().connectWifi.ip = wlan.ifconfig()[0]
        return True
    print('连接'+ssid+' 失败！')
    return False

def autoConnectWifi():
    """
    连接附近WiFi
    :return:
    """
    for item in scanWifi():
        try:
            ssid = str(item[0].decode('utf-8'))
            if ssid in getConfig().wifi:
                pwd = getConfig().wifi[ssid]
                print('连接WiFi：', ssid, pwd)
                if connectWifi(ssid, pwd):
                    return True
        except:
            pass
    print('连接附近WiFi失败')
    return False

client = None
def send_ping():
    try:
        client.ping()
    except Exception as e:
        print(e)
        getConfig().mqttStatus = False


def connectMQTT(keepalive):
    """
    连接MQTT
    :return:
    """
    global client
    onFlickerLed(1000)
    try:
        client.disconnect()
    except Exception as e:
        pass
    try:
        client = None
    except:
        pass

    topic = getConfig().id
    client = MQTTClient(getConfig().id, getConfig().mqtt.host, getConfig().mqtt.port, 'esp', 'Mqtt.158747928', keepalive=keepalive)
    client.set_callback(mqCallback)
    try:
        print('连接mqtt中......')
        client.connect()
        print('mqtt连接成功')
        client.subscribe(topic, 1)
        sleep(1)
        onLed()
    except Exception as e:
        print('MQTT连接失败：', getConfig().id, getConfig().mqtt.host, getConfig().mqtt.port, topic)
        print(e)
        return False
    getConfig().mqtt.subTopic = topic
    getConfig().mqttStatus = True
    # 启动定时任务定时ping
    # tasks.add_work(send_ping, 30000)
    # 启动多线程检查待处理消息
    _thread.start_new_thread(checkMsg, ())
    # 上报状态
    reportConfig()
    print("已连接到MQTT：", topic)
    return True

def checkMsg():
    """
    检查服务器是否有待处理的消息
    :return:
    """
    while getConfig().mqttStatus:
        try:
            client.check_msg()
        except Exception as e:
            print(e)
            print('MQTT断开')
            getConfig().mqttStatus = False
            break
heartbeat = 1
def mqCallback(topic, msg):
    print(topic, msg)
    msg = msg.decode('utf-8').split("@")
    com = msg[0]
    logId = msg[1] if len(msg) > 1 else None

    # 执行命令
    if not sysCom(com):
        device.command(com)
        # 执行完命令上报状态
        reportLog(logId)

def sysCom(com):
    """
    判断是不是系统命令，如果不是就调用模块去执行
    """
    if com == 'updateSystem':
        checkUpdate()
        return True
    elif com == 'heartbeat':
        return True

    return False

def sendMqtt(msg):
    """
    发送mqtt消息
    :param msg:
    :return:
    """
    client.publish(getConfig().mqtt.sendTopic, msg, False)

def reportHeartbeat():
    sendMqtt('heartbeat')

def reportConfig():
    data = getConfig().toJson()
    data['report'] = 'reportConfig'
    sendMqtt(ujson.dumps(data))
    print('reportConfig')


def reportLog(logId):
    """
    上报状态
    """
    data = {'device': device.status()}
    data['logId'] = logId
    data['report'] = 'reportLog'
    sendMqtt(ujson.dumps(data))
    print('reportLog')

# 读取文件内容
def openFile(path):
    file=open(path, 'r')
    text = file.read()
    file.close()
    return text

# 写文件
def writeFile(path, content):
    # 判断是否在文件夹下
    index = path.rfind('/')
    if index != -1:
        try:
            os.mkdir(path[:index])
        except OSError as e:
            pass
    file=open(path, 'w')
    text = file.write(content)
    file.close()
    return True

def checkUpdate():
    """
    检查系统更新
    """
    try:
        version = urequests.get("http://v-kun.com:3000/hk/smart-home-version-release/raw/master/version.json").text
        print(version)
        if version is not None and version != '':
            v = ujson.loads(version)
            isSave = False
            if v["system"] > getConfig().version.system:
                if updateSystem(str(v["system"]), 'system'):
                    getConfig().version.system = v["system"]
                    isSave = True
            if v[getConfig().model] > getConfig().version.model:
                if updateSystem(str(v[getConfig().model]), getConfig().model):
                    getConfig().version.model = v[getConfig().model]
                    isSave = True
            if isSave:
                saveConfig()
                reset()
    except Exception as e:
        print(e)

def updateSystem(version, name):
    print('更新', name, version)
    try:
        # 获取要更新的文件列表
        files = urequests.get("http://v-kun.com:3000/hk/smart-home-version-release/raw/master/"+name+"/v"+version+"/fileList.json").text
        files = ujson.loads(files)
        for file in files:
            print(file)
            text = urequests.get("http://v-kun.com:3000/hk/smart-home-version-release/raw/master/" + name + "/v" + version + "/"+file).text
            writeFile(file, text)
        return True
    except Exception as e:
        print(e)
        return False