#coding=utf-8

from rest_framework import serializers
from apps.exceptions import CustomError
from django.db.models import Q

from apps.foundation.models import BizLog
from .models import *
from apps.serializer_errors import dump_serializer_errors
from apps.foundation.models import BizLog

class BranchSerializer(serializers.ModelSerializer):
    enabled_text = serializers.SerializerMethodField()

    class Meta:
        model = Branch
        fields = '__all__'

    def get_enabled_text(self, obj):
        if obj.enabled:
            return u'是'
        return u'否'

    @staticmethod
    def factory(user, data, id=None):
        if id:
            instance = Branch.getById(id)
        else:
            instance = None
        serializer = BranchSerializer(instance, data=data)
        serializer.user = user
        return serializer

    def validSave(self):
        if self.is_valid():
            return self.save()
        else:
            raise CustomError(dump_serializer_errors(self))


    def create(self, validated_data):
        instance = super(BranchSerializer, self).create(validated_data)
        instance.save()
        BizLog.objects.addnew(self.user, BizLog.INSERT, u"添加门店[%s],id=%s" % (instance.name, instance.id),validated_data)
        return instance

    def update(self, instance, validated_data):
        BizLog.objects.addnew(self.user, BizLog.UPDATE, u"修改门店[%s],id=%s" % (instance.name, instance.id),validated_data)
        instance = super(BranchSerializer, self).update(instance, validated_data)
        return instance


class MemberSerializer(serializers.ModelSerializer):
    create_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M', read_only=True)

    class Meta:
        model = Member
        fields = '__all__'


class MemberCouponSerializer(serializers.ModelSerializer):
    activity_name = serializers.CharField(source='activity.title', read_only=True)
    coupon_name = serializers.CharField(source='coupon.name', read_only=True)
    write_off_text = serializers.SerializerMethodField()
    write_off_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M', read_only=True)

    class Meta:
        model = MemberCoupon
        fields = '__all__'

    def get_write_off_text(self, obj):
        if obj.write_off:
            return u'是'
        return u'否'


class OrderSerializer(serializers.ModelSerializer):
    activity_name = serializers.CharField(source='activity.title', read_only=True)
    member_name = serializers.CharField(source='member.nickname', read_only=True)
    member_tel = serializers.CharField(source='member.tel', read_only=True)
    status_text = serializers.CharField(source='get_status_display', read_only=True)
    delete_text = serializers.SerializerMethodField()
    create_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M', read_only=True)

    class Meta:
        model = Order
        fields = '__all__'

    def get_delete_text(self, obj):
        if obj.delete:
            return u'是'
        return u'否'