# @Author    : Rocky
# @File      : AlexaController.py
# @Time      : 2023/12/25 10:46
import requests
from django.views import View

from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject


class AppToAppView(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()
        token = TokenObject(request.META.get('HTTP_AUTHORIZATION'))
        if token.code != 0:
            return response.json(token.code)
        user_id = token.userID
        if operation == 'getAlexaAppURLAndLWAFallbackURL':  # 获取Alexa App和LWA fallback URL
            return self.get_alexa_app_url_and_lwa_fallback_url(response)
        elif operation == 'accountLinkWithAmazonAuthorizationCode':  # 通过亚马逊授权码连接账号
            return self.account_link_with_amazon_authorization_code(user_id, request_dict, response)
        elif operation == 'getSkillPageURL':  # 获取skill页面URL(取消链接)
            return self.get_skill_page_url(response)
        else:
            return response.json(414)

    @staticmethod
    def get_alexa_app_url_and_lwa_fallback_url(response):
        client_id = 'amzn1.application-oa2-client.98a01914518743e481d51115144dafb0'     # Alexa Client Id
        skill_stage = 'development'    # 开发中: development, 已上线: live
        redirect_uri = 'https://smart.loocam2.com'
        alexa_app_url = 'https://alexa.amazon.com/spa/skill-account-linking-consent?' \
                        'fragment=skill-account-linking-consent&client_id={}&' \
                        'scope=alexa::skills:account_linking&skill_stage={}&response_type=code&' \
                        'redirect_uri={}'.format(client_id, skill_stage, redirect_uri)
        lwa_fallback_url = 'https://www.amazon.com/ap/oa?' \
            'client_id={}&scope=alexa::skills:account_linking&response_type=code&redirect_uri={}&'.\
            format(client_id, redirect_uri)
        res = {
            'alexa_app_url': alexa_app_url,
            'lwa_fallback_url': lwa_fallback_url
        }
        return response.json(0, res)

    @staticmethod
    def account_link_with_amazon_authorization_code(user_id, request_dict, response):
        amazon_authorization_code = request_dict.get('amazon_authorization_code', None)
        if not amazon_authorization_code:
            return response.json(444)

        # 获取亚马逊访问令牌
        url = 'https://api.amazon.com/auth/o2/token'
        base_uri = 'https://smart.loocam2.com'
        data = {
            'grant_type': 'authorization_code',
            'code': amazon_authorization_code,
            'client_id': 'amzn1.application-oa2-client.98a01914518743e481d51115144dafb0',
            'client_secret': '43353cac67670aefd64a5f95309754ddd6bcfe8a087cc3cad1348b626f64b132',
            'redirect_uri': base_uri
        }
        try:
            r = requests.post(url=url, data=data, timeout=10)
            if r.status_code != 200:
                return response.json(10, '{}请求响应状态码错误:{}'.format(url, r.status_code))
            res_data = eval(r.content)
            print(res_data)
            if res_data.get('access_token'):
                amazon_access_token = res_data['access_token']
            else:
                return response.json(10, '{}请求响应缺失令牌:{}'.format(url, res_data))

            # 获取用户授权码
            url = base_uri + '/appToApp/oa2/getAuthCode'
            params = {
                'user_id': user_id
            }
            r = requests.get(url=url, params=params, timeout=10)
            if r.status_code != 200:
                return response.json(10, '{}请求响应状态码错误:{}'.format(url, r.status_code))
            res = eval(r.content)
            user_authorization_code = res['res']['user_authorization_code']
            data = {
                "stage": "development",
                "accountLinkRequest": {
                    "redirectUri": base_uri,
                    "authCode": user_authorization_code,
                    "type": "AUTH_CODE"
                }
            }
            # 请求连接skill
            headers = {
                'Content-Type': 'application/json',
                'Authorization': "Bearer {}".format(amazon_access_token)
            }
            skill_id = 'amzn1.ask.skill.ff5a5074-7ec7-442b-979b-cb57095f7a94'
            url = 'https://api.amazonalexa.com/v1/users/~current/skills/{}/enablement'.format(skill_id)
            get_token_res = requests.post(headers=headers, url=url, json=data, timeout=30)
            res_data = eval(get_token_res.content)
            print(res_data)
            return response.json(0)
        except Exception as e:
            print('error_line:{}, error_msg:{}'.format(e.__traceback__.tb_lineno, repr(e)))

    @staticmethod
    def get_skill_page_url(response):
        skill_asin = 'B0C94Q7H1L'
        skill_page_url = 'https://alexa.amazon.com/spa/index.html#skills/dp/{}'.format(skill_asin)
        lwa_page_url = 'https://www.amazon.com/dp/{}'.format(skill_asin)
        res = {
            'skill_page_url': skill_page_url,
            'lwa_page_url': lwa_page_url
        }
        return response.json(0, res)