#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import time
import boto3
import botocore
from django.views.generic.base import View
from Model.models import DeviceLogModel
from Service.CommonService import CommonService
from Object.ResponseObject import ResponseObject
from Ansjer.config import REGION_NAME, ACCESS_KEY_ID, SECRET_ACCESS_KEY, LOG_BUCKET


class DeviceLogView(View):

    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation', None)
        return self.validate(request, request.GET, operation)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation', None)
        return self.validate(request, request.POST, operation)

    def validate(self, request, request_dict, operation):
        response = ResponseObject()
        token = request_dict.get('token', None)
        time_stamp = request_dict.get('time_stamp', None)
        # 时间戳token校验
        if not CommonService.check_time_stamp_token(token, time_stamp):
            return response.json(13)

        if operation == 'getUploadUrl':
            return self.getUploadUrl(request_dict, response)
        elif operation == 'uploaded':
            return self.uploaded(request, request_dict, response)
        else:
            return response.json(414)

    def getUploadUrl(self, request_dict, response):
        uid = request_dict.get('uid', None)
        file_type = request_dict.get('file_type', None)

        if not all([uid, file_type]):
            return response.json(444)

        try:
            uid = CommonService.decode_data(uid)
            # 日志文件名
            name = CommonService.createOrderID()
            filename = str(name) + '.' + file_type
            obj = 'device_log/{uid}/'.format(uid=uid) + filename
            aws_s3_client = boto3.client(
                's3',
                region_name=REGION_NAME,
                aws_access_key_id=ACCESS_KEY_ID,
                aws_secret_access_key=SECRET_ACCESS_KEY,
                config=botocore.client.Config(signature_version='s3v4'),
            )
            put_url = aws_s3_client.generate_presigned_url(
                ClientMethod='put_object',
                Params={
                    'Bucket': LOG_BUCKET,
                    'Key': obj
                },
                ExpiresIn=3600
            )
            return response.json(0, {'put_url': put_url, 'filename': filename})
        except Exception as e:
            print(e)
            return response.json(500, repr(e))

    def uploaded(self, request, request_dict, response):
        uid = request_dict.get('uid', None)
        status = request_dict.get('status', None)
        filename = request_dict.get('filename', None)

        if not all([uid, status, filename]):
            return response.json(444)

        try:
            status = int(status)
            uid = CommonService.decode_data(uid)
            ip = CommonService.get_ip_address(request)
            DeviceLogModel.objects.create(uid=uid, ip=ip, status=status, filename=filename)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500, repr(e))