#coding=utf-8

import traceback
import json

from django.utils import timezone
from libs import utils
from libs.http import JSONError, JSONResponse,DataGridJSONResponse
from apps.account.decorators import token_required
from django.db import transaction, IntegrityError
from apps.exceptions import CustomError

from apps.foundation.models import BizLog

from django.db.models import Q
from django.conf import settings
from .models import *
from .serializers import *
from .filters import *


@token_required
def branch_list(request):
    f = BranchFilter(request.GET, queryset=Branch.objects.filter())
    rows, total = utils.get_page_data(request, f.qs)
    serializer = BranchSerializer(rows, many=True)
    return DataGridJSONResponse(serializer.data, total)


@token_required
def branch_save(request):
    id = request.GET.get('id')
    data = json.loads(request.body)

    try:
        with transaction.atomic():
            serializer = BranchSerializer.factory(request.user, data, id)
            serializer.validSave()
        return JSONResponse(serializer.data)
    except CustomError as e:
        return JSONError(e.get_error_msg())
    except Exception as e:
        traceback.print_exc()
        return JSONError(u'保存失败！')


@token_required
def member_list(request):
    f = MemberFilter(request.GET, queryset=Member.objects.filter(branch=request.user.branch))
    rows, total = utils.get_page_data(request, f.qs)
    serializer = MemberSerializer(rows, many=True)
    return DataGridJSONResponse(serializer.data, total)


@token_required
def member_coupon_list(request):
    f = MemberCouponFilter(request.GET, queryset=MemberCoupon.objects.filter(member__branch=request.user.branch))
    rows, total = utils.get_page_data(request, f.qs)
    serializer = MemberCouponSerializer(rows, many=True)
    return DataGridJSONResponse(serializer.data, total)


@token_required
def coupon_write_off(request):
    id = request.GET.get('id')
    try:
        with transaction.atomic():
            instance = MemberCoupon.getById(id)
            if instance.member.branch and instance.member.branch_id != request.user.branch_id:
                raise CustomError(u'禁止跨店操作!')
            instance.writeOff()
            BizLog.objects.addnew(request.user, BizLog.CHECK, u"核销会员优惠券,id=%d" % instance.id)
    except CustomError as e:
        return JSONError(e.get_error_msg())
    except Exception as e:
        traceback.print_exc()
        return JSONError(u'核销失败！')
    return JSONResponse()


@token_required
def coupon_cancel_write_off(request):
    id = request.GET.get('id')
    try:
        with transaction.atomic():
            instance = MemberCoupon.getById(id)
            if instance.member.branch and instance.member.branch_id != request.user.branch_id:
                raise CustomError(u'禁止跨店操作！')
            instance.cancelWriteOff()
            BizLog.objects.addnew(request.user, BizLog.CHECK, u"撤销核销会员优惠券,id=%d" % instance.id)
    except CustomError as e:
        return JSONError(e.get_error_msg())
    except Exception as e:
        traceback.print_exc()
        return JSONError(u'撤销核销失败！')
    return JSONResponse()


@token_required
def order_list(request):
    f = OrderFilter(request.GET, queryset=Order.objects.filter(branch=request.user.branch))
    rows, total = utils.get_page_data(request, f.qs)
    serializer = OrderSerializer(rows, many=True)
    return DataGridJSONResponse(serializer.data, total)