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

from django.conf import settings
from django.http import JsonResponse

from message.models import UserMessageInfo

from utils.errno_utils import MessageStatusCode
from utils.response_utils import response
from utils.page_utils import pagination


def message_list_api(request):
    user_id = request.POST.get('user_id', '') or request.GET.get('user_id', '')

    messages = UserMessageInfo.MESSAGE_TYPE_INFO

    final_messages = []
    for message in messages:
        type_messages = UserMessageInfo.objects.filter(
            to_uid=user_id,
            msg_type=message['msg_type'],
        ).order_by(
            '-pk'
        )[:settings.MESSAGE_NUM_PER_PAGE]
        type_messages = [msg.msg_info for msg in type_messages]
        message['msg_list'] = type_messages
        final_messages.append(message)

    return JsonResponse({
        'status': 200,
        'message': u'获取消息列表成功',
        'data': {
            'messages': final_messages,
        },
    })


def message_type_list_api(request, msg_type):
    user_id = request.POST.get('user_id', '') or request.GET.get('user_id', '')
    page = int(request.POST.get('page', 0) or request.GET.get('page', 0) or 1)
    num = int(request.POST.get('num', 0) or request.GET.get('num', 0) or settings.MESSAGE_NUM_PER_PAGE)

    type_messages = UserMessageInfo.objects.filter(
        to_uid=user_id,
        msg_type=msg_type,
    ).order_by(
        '-pk'
    )
    type_messages, left = pagination(type_messages, page, num)
    type_messages = [msg.msg_info for msg in type_messages]

    return JsonResponse({
        'status': 200,
        'message': u'获取消息列表成功',
        'data': {
            'messages': type_messages,
            'left': left,
        },
    })


def message_read_api(request):
    pk = int(request.POST.get('pk', 0) or request.GET.get('pk', 0) or -1)
    user_id = request.POST.get('user_id', '') or request.GET.get('user_id', '')

    try:
        message = UserMessageInfo.objects.get(pk=pk, to_uid=user_id)
    except UserMessageInfo.DoesNotExist:
        return response(MessageStatusCode.MESSAGE_NOT_FOUND)

    message.read = True
    message.save()

    return JsonResponse({
        'status': 200,
        'message': u'已读消息成功',
    })