from rest_framework import serializers
import time
# import ast
# from .models import Device


class SearchEquipSerializer(serializers.Serializer):
    device_id = serializers.CharField(help_text="搜索设备号", required=True)
    isfullId = serializers.IntegerField(help_text="是否完整搜索固定值1", required=False)

    def validate_device_id(self, value):
        value = value.strip()
        if len(value) < 4:
            raise serializers.ValidationError("设备号长度不能小于4位")
        else:
            return value


# class DeviceDetailSerializer(serializers.Serializer):
#     req = serializers.CharField(help_text="类型", required=True)
#     device_id = serializers.CharField(help_text="设备号", required=True)
#     start_timestamp = serializers.IntegerField(help_text="开始时间戳(秒级)", required=True)
#     end_timestamp = serializers.IntegerField(help_text="结束时间戳(秒级)", required=True)
#     page = serializers.IntegerField(help_text="页码", required=True)
#     page_size = serializers.IntegerField(help_text="页长", required=True)

#     def validate_page(self, value):
#         if value<1:
#             raise serializers.ValidationError("页码不能小于1")
#         return value
    
#     def validate_page_size(self, value):
#         if value<1:
#             raise serializers.ValidationError("每页数据不能小于1")
#         return value


class DeviceDetailSerializer(serializers.Serializer):
    req = serializers.CharField(help_text="类型", required=True)
    device_id = serializers.CharField(help_text="设备号", required=True)
    start_timestamp = serializers.IntegerField(help_text="开始时间戳(秒级)", required=False)
    end_timestamp = serializers.IntegerField(help_text="结束时间戳(秒级)", required=False)
    page = serializers.IntegerField(help_text="页码", required=False)
    page_size = serializers.IntegerField(help_text="页长", required=False)

    def validate(self, attrs):
        if attrs.get("req")=="history":
            if not attrs.get("start_timestamp",""):
                raise serializers.ValidationError({"start_timestamp":"参数为必填项"})
            if  not attrs.get("end_timestamp",""):
                raise serializers.ValidationError({"end_timestamp":"参数为必填项"})
            if attrs["start_timestamp"] > attrs["end_timestamp"]:
                raise serializers.ValidationError({"timestamp":"结束时间不能小于开始时间"})
            if not attrs.get("page",""):
                attrs["page"] = 1
            if not attrs.get("page_size",""):
                attrs["page_size"] = 10
        elif attrs.get("req")=="new":
            if not attrs.get("page_size",""):
                attrs["page_size"] = 1
            if not attrs.get("offset",""):
                attrs["offset"] = 0
        else:
            raise serializers.ValidationError({"req":"参数超出阈值"})
        return attrs