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

import os
import sys

from concurrent.futures import ThreadPoolExecutor, Future

PROJECT_ROOT = os.path.join(os.path.abspath(os.path.split(os.path.realpath(__file__))[0] + "/.."), '..')
sys.path.insert(0, PROJECT_ROOT)

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'configs.production')

from script.base import init_env

init_env(False)

from django.conf import settings
from apps.web.device.models import Device, DeviceDict
from apps.web.core.networking import MessageSender
from apps.web.device.define import DeviceChannelType


def is_online(devNo):
    return bool(Device.get_dev(devNo).online)


def done_callback(f):  # type:(Future) -> None
    debug, devNo, old_port = f.result()
    if debug:
        print('{} debug.'.format(devNo))
    else:
        with open("e:\\temp\\change_ip\\done_{}.txt".format(old_port), "a") as f:
            f.write("{}\n".format(devNo))


def change_ip_and_record(devNo, debug, new_port, old_port):
    if debug:
        return debug, devNo
    else:
        device = Device.get_dev(devNo)  # type: DeviceDict

        if device.channelType == DeviceChannelType.Channel_BT:
            return debug, devNo

        if len(devNo) < 15:
            return debug, devNo

        serverIp, port = device.server.split(":")

        if serverIp != settings.MQTT_HOSTNAME:
            return debug, devNo

        if int(port) != old_port:
            print('{} is not in {}.'.format(device.devNo, old_port))
            return debug, devNo

        MessageSender.send_no_wait(
            device = device,
            cmd = 202,
            payload = {
                "IMEI": device.devNo,
                "addr_set": {"ip1": serverIp, "port1": new_port}
            },
            timeout = 5
        )

        return debug, device.devNo, old_port


def run(debug, devices, new_port, old_port):
    with ThreadPoolExecutor(max_workers = 20) as executor:
        for _dev in devices:  # type: Device
            if not is_online(_dev.devNo):
                continue

            if 'DUMMY' in _dev.devNo:
                continue

            if 'LuaRTOS' in _dev.coreVer:
                print('{} is lua os'.format(_dev.devNo))
                continue

            executor.submit(change_ip_and_record, _dev.devNo, debug, new_port, old_port).add_done_callback(
                done_callback)


if __name__ == '__main__':
    __list = []
    __done_list = []

    old_port = int(sys.argv[1])
    new_port = int(sys.argv[2])

    try:
        with open("e:\\temp\\change_ip\\done_{}.txt".format(old_port), "r") as f:
            lines = f.readlines()
            for line in lines:
                line = line.strip()
                __done_list.append(line)
    except Exception as e:
        pass

    try:
        with open("e:\\temp\\change_ip\\do_{}.txt".format(old_port), "r") as f:
            lines = f.readlines()
            for line in lines:
                line = line.strip()
                if line not in __done_list:
                    __list.append(line)
    except Exception as e:
        pass

    filter = {
        'devNo': {'$in': __list}
    }
    devices = [dev for dev in Device.objects(__raw__ = filter)]

    run(debug = False, devices = devices, new_port = new_port, old_port = old_port)