# -*- coding: utf-8 -*-

from django.db import transaction
from django.http import JsonResponse

from rest_framework import viewsets

from account.models import UserInfo
from group.models import GroupInfo, GroupUserInfo, GroupPhotoInfo
from group.serializers import GroupInfoSerializer, GroupUserInfoSerializer, GroupPhotoInfoSerializer

from utils.ip_utils import ip_addr

from curtail_uuid import CurtailUUID
from TimeConvert import TimeConvert as tc


@transaction.atomic
def group_create_api(request):
    user_id = request.POST.get('user_id', '')

    try:
        user = UserInfo.objects.get(user_id=user_id)
    except UserInfo.DoesNotExist:
        return JsonResponse({
            'status': 4011,
            'message': u'用户不存在',
        })

    group_id = CurtailUUID.uuid(GroupInfo, 'group_id')
    group = GroupInfo.objects.create(
        group_id=group_id,
        group_from=GroupInfo.APP_GROUP,
    )
    GroupUserInfo.objects.create(
        group_id=group_id,
        user_id=user_id,
        nickname=user.username,
        admin=True,
        user_status=GroupUserInfo.PASSED,
        passed_at=tc.utc_datetime(),
    )

    return JsonResponse({
        'status': 200,
        'message': u'群组创建成功',
        'data': {
            'group_id': group_id,
            'users': group.users
        },
    })


def group_join_api(request):
    group_id = request.POST.get('group_id', '')
    user_id = request.POST.get('user_id', '')
    nickname = request.POST.get('nickname', '')

    try:
        user = UserInfo.objects.get(user_id=user_id)
    except UserInfo.DoesNotExist:
        return JsonResponse({
            'status': 4011,
            'message': u'用户不存在',
        })

    try:
        group = GroupInfo.objects.get(group_id=group_id)
    except GroupInfo.DoesNotExist:
        return JsonResponse({
            'status': 4020,
            'message': u'群组不存在',
        })
    if group.group_lock:
        return JsonResponse({
            'status': 4021,
            'message': u'群组已锁定',
        })

    GroupUserInfo.objects.create(
        group_id=group_id,
        user_id=user_id,
        nickname=nickname or user.username,
        admin=False,
        user_status=GroupUserInfo.APPLYING,
    )

    return JsonResponse({
        'status': 200,
        'message': u'申请已提交',
    })


class GroupInfoViewSet(viewsets.ModelViewSet):
    queryset = GroupInfo.objects.all().order_by('-created_at')
    serializer_class = GroupInfoSerializer


class GroupUserInfoViewSet(viewsets.ModelViewSet):
    queryset = GroupUserInfo.objects.all().order_by('-created_at')
    serializer_class = GroupUserInfoSerializer


class GroupPhotoInfoViewSet(viewsets.ModelViewSet):
    queryset = GroupPhotoInfo.objects.all().order_by('-created_at')
    serializer_class = GroupPhotoInfoSerializer