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):
    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_start = serializers.IntegerField(help_text="起始", required=False)
    page_size = serializers.IntegerField(help_text="页长", required=False)

    def validate_page_size(self, value):
        if value > 100:
            raise serializers.ValidationError("超出设置阈值100")
        else:
            return value
    
    def validate_page_start(self, value):
        if value < 0:
            raise serializers.ValidationError("page_start不能小于0")
        else:
            return value
    
    def validate_page_size(self, value):
        if value < 1:
            raise serializers.ValidationError("page_start不能小于1")
        else:
            return value

    def validate(self, attrs):
        if attrs.get("start_timestamp") and attrs.get("end_timestamp"):
            if attrs["start_timestamp"] > attrs["end_timestamp"]:
                raise serializers.ValidationError({"timestamp":"结束时间不能小于开始时间"})
        elif not attrs.get("start_timestamp") and attrs.get("end_timestamp"):
            raise serializers.ValidationError({"start_timestamp":"结束时间存在，开始时间必须存在"})
        elif attrs.get("start_timestamp") and not attrs.get("end_timestamp"):
            raise serializers.ValidationError({"end_timestamp":"开始时间存在，结束时间必须存在"})
        elif not attrs.get("start_timestamp") and not attrs.get("end_timestamp"):
            attrs["start_timestamp"] = 0
            attrs["end_timestamp"] = 0
        if not attrs.get("page_start",""):
            attrs["page_start"] = 0
        if not attrs.get("page_size",""):
            attrs["page_size"] = 10
        return attrs