import json
import logging
import time

import requests
from bulk_update.helper import bulk_update
from django.db import transaction
from django.views import View

from Model.models import SerialNumberModel, UserModel, UserSerialNumberModel, CompanySerialModel, \
    MacModel, LogModel, CompanyModel
from Object.RedisObject import RedisObject
from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject
from Service.AlgorithmService import AlgorithmBaseOn35
from Service.CommonService import CommonService


class SerialNumberView(View):

    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.GET
        operation = kwargs.get('operation')
        return self.validate(request_dict, operation, request)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.POST
        operation = kwargs.get('operation')
        return self.validate(request_dict, operation, request)

    def validate(self, request_dict, operation, request):
        response = ResponseObject()
        if operation == 'create':
            return self.do_create(request_dict, response)
        elif operation == 'getSerial':  # 获取序列号
            return self.get_serial(request_dict, response)

        token = request_dict.get('token', None)
        token = TokenObject(token)
        if token.code != 0:
            return response.json(token.code)

        if operation == 'quantity':  # 查询当前可用的UID的数量
            return self.do_quantity(token.userID, response)
        elif operation == 'allot':   # 分配序列号
            return self.do_allot(request_dict, response)
        elif operation == 'createSerial':  # 生成序列号
            return self.create_serial(request_dict, response, request, token.userID)
        elif operation == 'serialCompany':  # 将序列号分匹配到指定企业
            return self.do_serial_company(request_dict, response, request, token.userID)
        elif operation == 'revise/state':  # 修改序列号状态
            return self.revise_state(request_dict, response, request)
        else:
            return response.json(309)

    def revise_state(self, request_dict, response, request):
        """
        修改序列号状态
        @param request_dict:请求参数
        @param response: 响应对象
        """
        use_status = request_dict.get('useStatus', None)  # 序列号表的状态
        status = request_dict.get('status', None)  # 关联企业序列号表的状态

        if not all([use_status, status]):
            return response.json(444)
        serial_number_qs = SerialNumberModel.objects.filter(use_status=use_status).values('serial_number')
        if not serial_number_qs.exists():
            return response.json(173)
        serial_list = [item[key] for item in serial_number_qs for key in item]
        try:
            country_serial_qs = CompanySerialModel.objects.filter(serial_number__in=serial_list).values('status')
            country_serial_qs.filter(status=status).update(status=2)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500)

    def do_serial_company(self, request_dict, response, request, user_id):
        """
        将序列号分匹配到指定企业
        :param request_dict: 请求参数
        :param response: 响应对象
        :param request: 请求
        :param user_id: 用户id
        :return:
        """
        id = request_dict.get('id', None)
        quantity = request_dict.get('quantity', None)

        if not all([id, quantity]):
            return response.json(444)

        company_qs = CompanyModel.objects.filter(id=id)
        if not company_qs.exists():
            return response.json(444)

        sum_Serial = SerialNumberModel.objects.filter().count()
        sum_Serial_company = CompanySerialModel.objects.filter().count()
        sum_bind = sum_Serial - sum_Serial_company  # 剩余可绑定的序列号
        if int(quantity) > int(sum_bind):
            return response.json(10041)

        try:
            company = company_qs[0]
            start_1 = sum_Serial_company
            end_1 = int(start_1) + int(quantity)
            serial_qs = SerialNumberModel.objects.filter()[start_1:end_1]
            if not serial_qs.exists():
                return response.json(173)
            company_serial_bulk = []
            now_time = int(time.time())
            for item in serial_qs:  # 更新状态为已分配但未使用
                company_serial_bulk.append(CompanySerialModel(
                    status=3,
                    add_time=now_time,
                    update_time=now_time,
                    company_id=company.id,
                    serial_number=item.serial_number,
                ))
                SerialNumberModel.objects.filter(serial_number=item.serial_number).update(
                    use_status=3,
                    add_time=now_time
                )

            # 记录操作日志
            ip = CommonService.get_ip_address(request)
            content = json.loads(json.dumps(request_dict))
            log = {
                'ip': ip,
                'user_id': user_id,
                'status': 200,
                'time': now_time,
                'url': 'serialNumber/serialCompany',
                'content': json.dumps(content),
                'operation': '{}生成{}个序列号{}: {}'.format(company.name, quantity, '成功', '同步更新成功'),
            }

            with transaction.atomic():
                CompanySerialModel.objects.bulk_create(company_serial_bulk)
                company.quantity = CompanySerialModel.objects.filter(company_id=id).count()
                company.save()
                Log = LogModel.objects.create(**log)

                # 同步更新业务服务器和uid管理系统的企业序列号表
                url1 = 'http://test.zositechc.cn/company/createSerial'
                url2 = 'https://www.zositechc.cn/company/createSerial'
                url3 = 'http://www.dvema.com/company/createSerial'
                # url4 = 'http://www.zositeche.com/company/createSerial'
                requests_data = {'id': id, 'quantity': quantity}

                res1 = requests.post(url=url1, data=requests_data, timeout=2 * 60)
                if res1.status_code != 200:
                    fail_reason = '请求测试服务器生成序列号响应状态码异常'
                    return self.failResponse(company.name, quantity, fail_reason, Log, response)
                res1 = res1.json()
                if res1['result_code'] != 0:
                    fail_reason = '测试服务器生成序列号发生异常'
                    return self.failResponse(company.name, quantity, fail_reason, Log, response)

                res2 = requests.post(url=url2, data=requests_data, timeout=2 * 60)
                if res2.status_code != 200:
                    fail_reason = '请求国内服务器生成序列号响应状态码异常'
                    return self.failResponse(company.name, quantity, fail_reason, Log, response)
                res2 = res2.json()
                if res2['result_code'] != 0:
                    fail_reason = '国内服务器生成序列号发生异常'
                    return self.failResponse(company.name, quantity, fail_reason, Log, response)

                res3 = requests.post(url=url3, data=requests_data, timeout=2 * 60)
                if res3.status_code != 200:
                    fail_reason = '请求美国服务器生成序列号响应状态码异常'
                    return self.failResponse(company.name, quantity, fail_reason, Log, response)
                res3 = res3.json()
                if res3['result_code'] != 0:
                    fail_reason = '美国服务器生成序列号发生异常'
                    return self.failResponse(company.name, quantity, fail_reason, Log, response)

                # res4 = requests.post(url=url4, data=requests_data, timeout=2 * 60)
                # if res4.status_code != 200:
                #     fail_reason = '请求欧洲服务器生成序列号响应状态码异常'
                #     return self.failResponse(company.name, quantity, fail_reason, Log, response)
                # res4 = res4.json()
                # if res4['code'] != 0:
                #     fail_reason = '欧洲服务器生成序列号发生异常'
                #     return self.failResponse(company.name, quantity, fail_reason, Log, response)

                return response.json(0)

        except Exception as e:
            djangoLogger = logging.getLogger('django')
            djangoLogger.exception(repr(e))
            return response.json(176)

    def failResponse(self, company_name, quantity, fail_reason, Log, response):
        operation = '{}生成{}个序列号{}: {}'.format(company_name, quantity, '失败', fail_reason)
        Log.operation = operation
        Log.save()
        return response.json(177)

    def create_serial(self, request_dict, response, request, user_id):
        """
        生成序列号
        :param request_dict: 请求参数
        :param response: 响应对象
        :param request: 请求
        :param user_id: 用户id
        :return:
        """
        quantity = int(request_dict.get('quantity', 0))

        if not quantity:
            return response.json(444)

        try:
            try:
                sum = SerialNumberModel.objects.last().id
            except:
                sum = 0
            serial_number_bulk = []
            now_time = int(time.time())
            algorithm = AlgorithmBaseOn35()
            for i in range(quantity):
                serial_number = algorithm.getLetter(sum)
                sum += 1  # sum每次递增1
                # 前面补0至六位
                serial_number = (6 - len(serial_number)) * '0' + serial_number
                serial_number_bulk.append(SerialNumberModel(serial_number=serial_number, add_time=now_time))

            # 记录操作日志
            ip = CommonService.get_ip_address(request)
            content = json.loads(json.dumps(request_dict))
            log = {
                'ip': ip,
                'user_id': user_id,
                'status': 200,
                'time': now_time,
                'url': 'serialNumber/createSerial',
                'content': json.dumps(content),
                'operation': '生成{}个序列号{}: {}'.format(quantity, '成功', '同步更新成功'),
            }

            # 开启事务写入
            with transaction.atomic():
                SerialNumberModel.objects.bulk_create(serial_number_bulk)
                Log = LogModel.objects.create(**log)

                # 同步更新业务服务器和uid管理系统的序列号表
                url1 = 'http://test.zositechc.cn/serialNumber/create'
                url2 = 'https://www.zositechc.cn/serialNumber/create'
                url3 = 'http://www.dvema.com/serialNumber/create'
                # url4 = 'http://www.zositeche.com/company/createSerial'
                requests_data = {'quantity': quantity}

                res1 = requests.post(url=url1, data=requests_data, timeout=2 * 60)
                if res1.status_code != 200:
                    fail_reason = '请求测试服务器生成序列号响应状态码异常'
                    return self.generateFail(quantity, fail_reason, Log, response)
                res1 = res1.json()
                if res1['result_code'] != 0:
                    fail_reason = '测试服务器生成序列号发生异常'
                    return self.generateFail(quantity, fail_reason, Log, response)

                res2 = requests.post(url=url2, data=requests_data, timeout=2 * 60)
                if res2.status_code != 200:
                    fail_reason = '请求国内服务器生成序列号响应状态码异常'
                    return self.generateFail(quantity, fail_reason, Log, response)
                res2 = res2.json()
                if res2['result_code'] != 0:
                    fail_reason = '国内服务器生成序列号发生异常'
                    return self.generateFail(quantity, fail_reason, Log, response)

                res3 = requests.post(url=url3, data=requests_data, timeout=2 * 60)
                if res3.status_code != 200:
                    fail_reason = '请求美国服务器生成序列号响应状态码异常'
                    return self.generateFail(quantity, fail_reason, Log, response)
                res3 = res3.json()
                if res3['result_code'] != 0:
                    fail_reason = '美国服务器生成序列号发生异常'
                    return self.generateFail(quantity, fail_reason, Log, response)
                # res4 = requests.post(url=url4, data=requests_data, timeout=2 * 60)
                # if res4.status_code != 200:
                #     fail_reason = '请求欧洲服务器生成序列号响应状态码异常'
                #     return self.generateFail(quantity, fail_reason, Log, response)
                # res4 = res4.json()
                # if res4['code'] != 0:
                #     fail_reason = '欧洲服务器生成序列号发生异常'
                #     return self.generateFail(quantity, fail_reason, Log, response)
                return response.json(0)

        except Exception as e:
            djangoLogger = logging.getLogger('django')
            djangoLogger.exception(repr(e))
            return response.json(176)

    def generateFail(self, quantity, fail_reason, Log, response):
        operation = '生成{}个序列号{}: {}'.format(quantity, '失败', fail_reason)
        Log.operation = operation
        Log.save()
        return response.json(177)

    def do_quantity(self, userID, response):
        """
        查询当前可用的UID的数量
        :param userID: 响应对象
        :param response: 请求
        :return:
        """
        user_qs = UserModel.objects.filter(id=userID)
        if not user_qs.exists():
            return response.json(9)

        unused_serial_number_count = SerialNumberModel.objects.filter(use_status=0).count()
        remain_qs = CompanySerialModel.objects.filter(status=1).count()
        company_qs = CompanyModel.objects.values('id', 'name')
        try:
            company_serial_list = []  # 剩余已分配未使用的序列号数量
            company_not_used_list = []  # 已使用的序列号数量
            for company in company_qs:
                id = company['id']
                name = company['name']
                not_used_qs = CompanySerialModel.objects.filter(status=3, company_id=id).count()
                res = {
                    'name': name,
                    'number': not_used_qs
                }
                company_not_used_list.append(res)

            for company in company_qs:
                id = company['id']
                name = company['name']
                count = CompanySerialModel.objects.filter(status=1, company_id=id).count()
                # 获取最后一个序列号
                if count == 0:
                    last_serial = ''
                else:
                    last_serial = CompanySerialModel.objects.filter(status=1, company_id=id).order_by('-id').values(
                        'serial_number')[:1][0]['serial_number']
                res = {
                    'name': name,
                    'numbers': count,
                    'lastSerial': last_serial
                }
                company_serial_list.append(res)
            res_data = {'code': 0, 'companyRemainCount': company_not_used_list, 'companyRemain': company_serial_list,
                        'unused_serial_number_count': unused_serial_number_count,
                        'unused_all_count': remain_qs}
            return response.json(0, {'data': res_data})
        except Exception as e:
            print(e)
            return response.json(500)

    def do_create(self, request_dict, response):
        quantity = int(request_dict.get('quantity', 0))

        if not quantity:
            return response.json(444)

        try:
            try:
                sum = SerialNumberModel.objects.last().id
            except:
                sum = 0
            serial_number_bulk = []
            now_time = int(time.time())
            algorithm = AlgorithmBaseOn35()
            for i in range(quantity):
                serial_number = algorithm.getLetter(sum)
                sum += 1  # sum每次递增1
                # 前面补0至六位
                serial_number = (6 - len(serial_number)) * '0' + serial_number
                serial_number_bulk.append(SerialNumberModel(serial_number=serial_number, add_time=now_time))
            # 开启事务写入
            with transaction.atomic():
                SerialNumberModel.objects.bulk_create(serial_number_bulk)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500, repr(e))

    @transaction.atomic
    def do_allot(self, request_dict, response):
        username = request_dict.get('username', None)
        quantity = int(request_dict.get('quantity', None))
        token = request_dict.get('token', None)

        token = TokenObject(token)
        if token.code != 0:
            return response.json(token.code)
        user = UserModel.objects.get(id=token.userID)
        if not user or '0' not in user.permission:
            return response.json(404)

        # 要分配的对象
        allot_user_qs = UserModel.objects.filter(username=username)
        if not allot_user_qs.exists():
            return response.json(444, 'username')

        # 取出对应区域可用的UID分配给allot_user
        sn_qs = SerialNumberModel.objects.filter(use_status=3)[0:quantity]
        sns = []
        for sn in sn_qs:
            sns.append(sn.serial_number)

        cs_qs = CompanySerialModel.objects.filter(serial_number__in=sns, status=3)

        sns = []
        for cs in cs_qs:
            sns.append(cs.serial_number)
        sn_qs = SerialNumberModel.objects.filter(serial_number__in=sns)

        count = sn_qs.count()
        if count < quantity:
            return response.json(444, '序列号不足')
        try:
            updates = []
            datas = []
            if not sn_qs.exists():
                return response.json(444)
            sn_qs = sn_qs[0:quantity]
            now_time = int(time.time())
            for i in range(len(sn_qs)):
                item = sn_qs[i]
                serialNumberModel = SerialNumberModel(
                    id=item.id,
                    serial_number=item.serial_number,
                    status=item.status,
                    use_status=1,
                    add_time=item.add_time
                )
                CompanySerialModel.objects.filter(serial_number=item.serial_number).update(status=1)
                user_serial_number = UserSerialNumberModel()
                user_serial_number.serial_number = serialNumberModel
                user_serial_number.user = allot_user_qs[0]
                user_serial_number.add_time = now_time
                user_serial_number.update_time = now_time

                datas.append(user_serial_number)
                updates.append(serialNumberModel)

            if len(updates) > 0:
                bulk_update(updates)
                UserSerialNumberModel.objects.bulk_create(datas)

            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def get_serial(request_dict, response):
        """
        获取序列号
        @param request_dict: 请求数据
        @param response: 响应
        @return: response
        """
        token = request_dict.get('token', None)
        time_stamp = request_dict.get('time_stamp', None)
        company_secret = request_dict.get('company_id', None)

        if not all([token, time_stamp, company_secret]):
            return response.json(444)

        # 时间戳token校验
        if not CommonService.check_time_stamp_token(token, time_stamp):
            return response.json(13)

        redis_obj = RedisObject()
        # redis加锁,防止同时进行其他操作
        serial_operate_lock_key = 'serial_operate_lock'
        serial_operate_lock = redis_obj.CONN.setnx(serial_operate_lock_key, 1)
        if not serial_operate_lock:
            return response.json(5)
        redis_obj.CONN.expire(serial_operate_lock_key, 60)

        # 查询可用的序列号
        company_serial_qs = CompanySerialModel.objects.filter(company__secret=company_secret, status=1).first()
        if company_serial_qs is None:
            redis_obj.del_data(key=serial_operate_lock_key)  # redis解锁
            return response.json(14)

        serial_number = company_serial_qs.serial_number
        company_mark = company_serial_qs.company.mark

        user_serial_number_qs = UserSerialNumberModel.objects.filter(user__id=3,
                                                                     serial_number__serial_number=serial_number,
                                                                     serial_number__use_status=1)
        if not user_serial_number_qs.exists():
            redis_obj.del_data(key=serial_operate_lock_key)  # redis解锁
            return response.json(14)

        # 防止重复获取序列号
        serial_number_lock = redis_obj.CONN.setnx(serial_number + 'serial_number_lock', 1)
        redis_obj.CONN.expire(serial_number + 'serial_number_lock', 60)
        if not serial_number_lock:
            return response.json(5)

        # 获取mac
        mac_qs = MacModel.objects.filter(is_active=True).values('value')
        if not mac_qs.exists():
            return response.json(175)

        mac = mac_qs[0]['value']
        # 绑定mac地址成功后更新mac表
        next_mac = CommonService.updateMac(mac)
        now_time = int(time.time())
        mac_data = {
            'update_time': now_time
        }
        if next_mac:
            mac_data['value'] = next_mac
        else:
            mac_data['is_active'] = False

        # 操作日志数据
        operation = '获取序列号:{}'.format(serial_number)
        log = {
            'user_id': 3,
            'time': now_time,
            'operation': operation,
            'url': 'serialNumber/getSerial',
        }

        try:
            with transaction.atomic():
                # 更新和创建数据
                MacModel.objects.filter().update(**mac_data)
                SerialNumberModel.objects.filter(serial_number=serial_number).update(use_status=2, add_time=now_time)
                CompanySerialModel.objects.filter(serial_number=serial_number).update(status=2, update_time=now_time)
                LogModel.objects.create(**log)

                redis_obj.del_data(key=serial_operate_lock_key)  # redis解锁
                return response.json(0, {'serial_number': serial_number + company_mark, 'mac': mac})
        except Exception as e:
            redis_obj.del_data(key=serial_operate_lock_key)  # redis解锁
            return response.json(500, repr(e))