# -*- coding: utf-8 -*-
"""
@Author ： Rocky
@Time ： 2022/10/18 9:48
@File ：KVSController.py
"""
import hashlib
import time
import uuid
import datetime

from django.http import HttpResponse
from django.views import View

from Model.models import KVS, Device_User, Device_Info
from Object.AWS.AmazonKinesisVideoUtil import AmazonKinesisVideoObject, AmazonKVAMObject
from Object.RedisObject import RedisObject
from Object.ResponseObject import ResponseObject
from Ansjer.config import ACCESS_KEY_ID, SECRET_ACCESS_KEY, REGION_NAME, SERVER_DOMAIN
from Object.TokenObject import TokenObject


class UserRelatedView(View):
    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.GET, operation, request)

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

    def validation(self, request_dict, operation, request):
        response = ResponseObject()
        if operation == 'generate-qr-code':  # 网页生成二维码
            return self.generate_qr_code(response)
        elif operation == 'get-scanning-status':  # 确认app是否扫码
            return self.get_scanning_status(request_dict, response)
        elif operation == 'web-login':  # 网页登录
            return self.web_login(request_dict, response)
        elif operation == 'pc-login':  # pc端登录
            return self.pc_login(request_dict, response)
        elif operation == 'confirm-login':  # app确认登录
            return self.confirm_login(request_dict, response)
        else:
            tko = TokenObject(
                request.META.get('HTTP_AUTHORIZATION'),
                returntpye='pc')
            if tko.code != 0:
                return response.json(tko.code)
            response.lang = tko.lang
            user_id = tko.userID
            if operation == 'get-device':  # 获取设备列表
                return self.get_device(response, user_id)
            else:
                return response.json(404)

    @staticmethod
    def get_user_info(user_id):
        """
        获取用户信息
        @param user_id: 用户id
        @return: response
        """
        device_user_qs = Device_User.objects.filter(userID=user_id).values('NickName', 'userIconPath',
                                                                           'userIconUrl')
        if not device_user_qs.exists():
            user_icon_url = ''
            nick_name = ''
        else:
            users = device_user_qs.first()
            nick_name = users['NickName']
            user_icon_path = str(users['userIconPath'])
            if user_icon_path:
                user_icon_path = user_icon_path.replace('static/', '').replace('\\', '/')
                user_icon_url = SERVER_DOMAIN + 'account/getAvatar/' + user_icon_path
            else:
                user_icon_url = ''
        return user_icon_url, nick_name

    @staticmethod
    def generate_qr_code(response):
        """
        网页生成二维码
        @param response: 响应对象
        @return: response
        """
        nwo_time = time.time()
        redis_obj = RedisObject()
        try:
            uuid_number = hashlib.md5((str(uuid.uuid1()) + str(nwo_time)).encode('utf-8')).hexdigest()
            flag = redis_obj.set_ex_data(uuid_number, 0, 300)  # redis记录uuid，状态为生成二维码
            res = {'type': 'autologin', 'id': uuid_number}
            if flag:
                return response.json(0, res)
            else:
                return response.json(119)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def get_scanning_status(request_dict, response):
        """
        获取app扫码状态
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @param response: 响应对象
        @return: response
        """
        uuid_number = request_dict.get('uuid', None)
        if not uuid_number:
            return response.json(444, {'error param': 'uuid'})
        try:
            redis_obj = RedisObject()
            status = redis_obj.get_data(uuid_number)
            if status is False:
                return response.json(119)
            elif status == '1' or status == '2':
                res = {'status': 1}  # 已扫码
            else:
                res = {'status': 0}  # 未扫码
            return response.json(0, res)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def pc_login(request_dict, response):
        """
        pc端登录
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @param response: 响应对象
        @return: response
        """
        uuid_number = request_dict.get('uuid', None)
        if not uuid_number:
            return response.json(444, {'error param': 'uuid'})
        try:
            redis_obj = RedisObject()
            status = redis_obj.get_data(uuid_number)
            token = redis_obj.get_data(uuid_number + 'token')
            if status is False or token is False:
                return response.json(119)
            elif status == '2':  # 已登录
                token_obj = TokenObject(token)
                response.lang = token_obj.lang
                if token_obj.code != 0:
                    return response.json(token_obj.code)
                user_id = token_obj.userID
                user_icon_url, nick_name = UserRelatedView.get_user_info(user_id)
                res = {'status': 1, 'userIconUrl': user_icon_url, 'nickName': nick_name, 'token': token}
                redis_obj.del_data(uuid_number)
                redis_obj.del_data(uuid_number + 'token')
            else:  # 未登录
                res = {'status': 0}
            return response.json(0, res)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def web_login(request_dict, response):
        """
        网页登录
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @param response: 响应对象
        @return: response
        """
        uuid_number = request_dict.get('uuid', None)
        confirm = request_dict.get('confirm', None)
        if not all([uuid_number, confirm]):
            return response.json(444, {'error param': 'uuid or confirm'})
        try:
            redis_obj = RedisObject()
            if confirm == '1':  # 取消登录
                redis_obj.del_data(uuid_number)
                redis_obj.del_data(uuid_number + 'token')
                return response.json(0)
            token = redis_obj.get_data(uuid_number + 'token')
            ttl = redis_obj.get_ttl(uuid_number)
            if token is False or ttl <= 0:
                return response.json(119)
            result = redis_obj.set_ex_data(uuid_number, 2, ttl)  # 修改uuid状态为已登录
            if result is False:
                return response.json(119)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def confirm_login(request_dict, response):
        """
        app确认登录
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @param response: 响应对象
        @return: response
        """
        uuid_number = request_dict.get('uuid', None)
        token = request_dict.get('token', None)
        if not all([uuid_number, token]):
            return response.json(444, {'error param': 'uuid or token'})
        redis_obj = RedisObject()
        try:
            status = redis_obj.get_data(uuid_number)
            ttl = redis_obj.get_ttl(uuid_number)
            if status is False or ttl <= 0:
                return response.json(119)
            result1 = redis_obj.set_ex_data(uuid_number, 1, ttl)  # 修改uuid状态为已扫码
            result2 = redis_obj.set_ex_data(uuid_number + 'token', token, ttl)
            if result1 is False or result2 is False:
                return response.json(119)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def get_device(response, user_id):
        """
        获取设备列表
        @param response: 响应对象
        @param user_id: 用户id
        @return: response
        """
        try:
            device_qs = Device_Info.objects.filter(userID=user_id).values('serial_number', 'NickName')
            return response.json(0, list(device_qs))
        except Exception as e:
            print(e)
            return response.json(500)


class KVSView(View):
    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.GET, request, operation)

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

    def validation(self, request_dict, request, operation):
        response = ResponseObject()
        if operation == 'create-media':  # 创建视频流
            return self.create_media(request_dict, response)
        elif operation == 'update-data-retention':  # 修改视频流数据保留时间
            return self.update_data_retention(request_dict, response)
        else:
            # tko = TokenObject(request.META.get('HTTP_AUTHORIZATION'))
            # if tko.code != 0:
            #     return response.json(tko.code)
            # response.lang = tko.lang
            # user_id = tko.userID
            if operation == 'get-device-midea-list':  # 获取设备列表
                return self.get_device_midea_list(request_dict, response)
            elif operation == 'get-hls-midea':  # 获取视频播放地址
                return self.get_hls_midea_url(request_dict, response)
            elif operation == 'download-clip':  # 获取视频播放地址
                return self.download_clip(request_dict, response)
            else:
                return response.json(404)

    @staticmethod
    def create_media(request_dict, response):
        """
        创建视频流
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @param response: 响应对象
        @return: response
        """
        serial_number = request_dict.get('serial_number', None)

        try:
            kvs_qs = KVS.objects.filter(stream_name=serial_number)
            if kvs_qs.exists():
                return response.json(174)
            kinesis_video_obj = AmazonKinesisVideoObject(
                aws_access_key_id=ACCESS_KEY_ID,
                secret_access_key=SECRET_ACCESS_KEY,
                region_name=REGION_NAME
            )
            stream_arn = kinesis_video_obj.create_stream(stream_name=serial_number)
            if stream_arn:
                now_time = int(time.time())
                KVS.objects.create(stream_name=serial_number, stream_arn=stream_arn, created_time=now_time,
                                   updated_time=now_time)
                return response.json(0)
            else:
                return response.json(178)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def update_data_retention(request_dict, response):
        """
        修改视频流数据保留时间
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @request_dict operation: 操作,增加/减少
        @request_dict data_retention_change_in_hours: 修改的时间
        @param response: 响应对象
        @return: response
        """
        serial_number = request_dict.get('serial_number', None)
        operation = request_dict.get('operation', None)
        data_retention_change_in_hours = request_dict.get('data_retention_change_in_hours', None)

        try:
            kvs_qs = KVS.objects.filter(stream_name=serial_number)
            if not kvs_qs.exists():
                return response.json(174)
            kinesis_video_obj = AmazonKinesisVideoObject(
                aws_access_key_id=ACCESS_KEY_ID,
                secret_access_key=SECRET_ACCESS_KEY,
                region_name=REGION_NAME
            )
            now_time = int(time.time())
            data_retention_change_in_hours = int(data_retention_change_in_hours)
            kinesis_video_obj.update_data_retention(stream_name=serial_number, operation=operation,
                                                    data_retention_change_in_hours=data_retention_change_in_hours)
            kvs_qs.update(data_retention_in_hours=data_retention_change_in_hours, updated_time=now_time)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500)

    @staticmethod
    def get_hls_midea_url(request_dict, response):
        """
        获取视频播放地址
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @request_dict startTime: 开始时间
        @request_dict endTime: 结束时间
        @request_dict playMode: 播放模式
        @param response: 响应对象
        @return: response
        """
        serial_number = request_dict.get('serial_number', None)
        start_time = request_dict.get('startTime', None)
        end_time = request_dict.get('endTime', None)
        play_mode = request_dict.get('playMode', None)
        if not all([serial_number, start_time, end_time, play_mode]):
            return response.json(444)
        start_time = datetime.datetime.fromtimestamp(int(start_time)) - datetime.timedelta(hours=8)
        end_time = datetime.datetime.fromtimestamp(int(end_time)) - datetime.timedelta(hours=8)
        play_mode = int(play_mode)
        play_mode = 'ON_DEMAND' if play_mode == 0 else 'LIVE_REPLAY'
        try:
            # kvs_qs = KVS.objects.filter(stream_name=serial_number)
            # if not kvs_qs.exists():
            #     return response.json(174)
            kinesis_video_obj = AmazonKVAMObject(
                aws_access_key_id='AKIA2E67UIMD45Y3HL53',
                secret_access_key='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',
                region_name='us-east-1',
                stream_name=serial_number,
                api_name='GET_HLS_STREAMING_SESSION_URL'
            )
            hls_streaming_session_url = kinesis_video_obj.get_hls_streaming_session_url(serial_number, start_time,
                                                                                        end_time, play_mode)
            return response.json(0, {"HlsStreamingSessionUrl": hls_streaming_session_url})
        except Exception as e:
            print(e)
            return response.json(500, repr(e))

    @staticmethod
    def get_device_midea_list(request_dict, response):
        """
        获取视频播放列表
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @request_dict startTime: 开始时间
        @request_dict endTime: 结束时间
        @param response: 响应对象
        @return: response
        """
        serial_number = request_dict.get('serial_number', None)
        start_time = request_dict.get('startTime', None)
        end_time = request_dict.get('endTime', None)
        page = request_dict.get('page', None)
        size = request_dict.get('size', None)
        if not all([serial_number, start_time, end_time, page, size]):
            return response.json(444)
        page = int(page)
        size = int(size)
        start_time = datetime.datetime.fromtimestamp(int(start_time)) - datetime.timedelta(hours=8)
        end_time = datetime.datetime.fromtimestamp(int(end_time)) - datetime.timedelta(hours=8)
        try:
            # kvs_qs = KVS.objects.filter(stream_name=serial_number)
            # if not kvs_qs.exists():
            #     return response.json(174)
            kinesis_fragments_obj = AmazonKVAMObject(
                aws_access_key_id='AKIA2E67UIMD45Y3HL53',
                secret_access_key='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',
                region_name='us-east-1',
                stream_name=serial_number,
                api_name='LIST_FRAGMENTS'
            )
            kinesis_images_obj = AmazonKVAMObject(
                aws_access_key_id='AKIA2E67UIMD45Y3HL53',
                secret_access_key='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',
                region_name='us-east-1',
                stream_name=serial_number,
                api_name='GET_IMAGES'
            )
            stream_list = kinesis_fragments_obj.get_list_fragments(serial_number, start_time, end_time)
            total_page = len(stream_list)
            stream_list = stream_list[(page - 1) * size:page * size]
            for item in stream_list:
                temp_start_time = (item['startTime'] - datetime.timedelta(hours=8)).replace(tzinfo=datetime.timezone.utc)
                temp_end_time = temp_start_time + datetime.timedelta(seconds=300)
                item['image'] = kinesis_images_obj.get_images(serial_number, temp_start_time, temp_end_time)
                item['startTime'] = int(item['startTime'].timestamp())
                item['endTime'] = int(item['endTime'].timestamp())
            res = {
                'totalPage': total_page,
                'fragments': stream_list
            }
            return response.json(0, res)
        except Exception as e:
            print(e)
            return response.json(500, repr(e))

    @staticmethod
    def download_clip(request_dict, response):
        """
        获取视频播放地址
        @param request_dict: 请求参数
        @request_dict serial_number: 序列号
        @request_dict startTime: 开始时间
        @request_dict endTime: 结束时间
        @param response: 响应对象
        @return: response
        """
        serial_number = request_dict.get('serial_number', None)
        start_time = request_dict.get('startTime', None)
        end_time = request_dict.get('endTime', None)
        if not all([serial_number, start_time, end_time]):
            return response.json(444)
        start_time = datetime.datetime.fromtimestamp(int(start_time)) - datetime.timedelta(hours=8)
        end_time = datetime.datetime.fromtimestamp(int(end_time)) - datetime.timedelta(hours=8)
        try:
            # kvs_qs = KVS.objects.filter(stream_name=serial_number)
            # if not kvs_qs.exists():
            #     return response.json(174)
            kinesis_video_obj = AmazonKVAMObject(
                aws_access_key_id='AKIA2E67UIMD45Y3HL53',
                secret_access_key='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',
                region_name='us-east-1',
                stream_name=serial_number,
                api_name='GET_CLIP'
            )
            clip_obj, clip_size = kinesis_video_obj.get_clip(serial_number, start_time, end_time)
            res = HttpResponse(clip_obj.read())
            res["content_type"] = "video/mp4"
            res["Content-Disposition"] = "attachment;filename=video.mp4"
            res['Content-Length'] = str(clip_size)
            return res
        except Exception as e:
            print(e)
            return response.json(500, repr(e))