# @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
from Ansjer.config import SERVER_DOMAIN_SSL


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)
        if operation == 'getAlexaAppURLAndLWAFallbackURL':  # 获取Alexa App和LWA fallback URL
            return self.get_alexa_app_url_and_lwa_fallback_url(response)
        elif operation == 'exchangesTheAmazonAuthorizationCode':  # 根据亚马逊验证码获取亚马逊访问令牌
            return self.exchanges_the_amazon_authorization_code(request_dict, 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
        """
        Alexa Redirect URLs
        https://pitangui.amazon.com/api/skill/link/M1GQ2T9YG53MFV
        https://alexa.amazon.co.jp/api/skill/link/M1GQ2T9YG53MFV
        https://layla.amazon.com/api/skill/link/M1GQ2T9YG53MFV
        """
        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 exchanges_the_amazon_authorization_code(request_dict, response):
        amazon_authorization_code = request_dict.get('amazon_authorization_code', None)
        if not amazon_authorization_code:
            return response.json(444)

        url = 'https://api.amazon.com/auth/o2/token'
        data = {
            'grant_type': 'authorization_code',
            'code': amazon_authorization_code,
            'client_id': 'amzn1.application-oa2-client.98a01914518743e481d51115144dafb0',
            'client_secret': '43353cac67670aefd64a5f95309754ddd6bcfe8a087cc3cad1348b626f64b132',
            'redirect_uri': amazon_authorization_code,
        }
        requests.post(url=url, data=data)
        return response.json(0)