"""
设备模块序列化器
"""
from rest_framework import serializers
from .models import DeviceType, DeviceBatch, Device, UserDevice


class DeviceTypeSerializer(serializers.ModelSerializer):
    """设备类型序列化器"""
    
    class Meta:
        model = DeviceType
        fields = ['id', 'brand', 'product_code', 'name', 'is_network_required', 'is_active', 'created_at']
        read_only_fields = ['id', 'is_network_required', 'created_at']


class DeviceBatchSerializer(serializers.ModelSerializer):
    """设备批次序列化器"""
    
    device_type_info = DeviceTypeSerializer(source='device_type', read_only=True)
    
    class Meta:
        model = DeviceBatch
        fields = ['id', 'device_type', 'device_type_info', 'batch_no', 'production_date', 
                  'production_week', 'quantity', 'remark', 'status', 'created_at']
        read_only_fields = ['id', 'production_week', 'status', 'created_at']


class DeviceBatchCreateSerializer(serializers.ModelSerializer):
    """创建设备批次序列化器"""
    
    class Meta:
        model = DeviceBatch
        fields = ['device_type', 'batch_no', 'production_date', 'quantity', 'remark']


class DeviceSerializer(serializers.ModelSerializer):
    """设备序列化器"""
    
    device_type_info = DeviceTypeSerializer(source='device_type', read_only=True)
    
    class Meta:
        model = Device
        fields = ['id', 'sn', 'device_type', 'device_type_info', 'mac_address', 
                  'name', 'status', 'firmware_version', 'last_online_at', 'created_at']


class DeviceSimpleSerializer(serializers.ModelSerializer):
    """设备简单序列化器"""
    
    class Meta:
        model = Device
        fields = ['id', 'sn', 'mac_address', 'status', 'created_at']


class UserDeviceSerializer(serializers.ModelSerializer):
    """用户设备绑定序列化器"""
    
    device = DeviceSerializer(read_only=True)
    spirit_name = serializers.CharField(source='spirit.name', read_only=True, allow_null=True)
    
    class Meta:
        model = UserDevice
        fields = ['id', 'device', 'spirit', 'spirit_name', 'bind_type', 'bind_time', 'is_active']


class BindDeviceSerializer(serializers.Serializer):
    """绑定设备序列化器"""
    
    sn = serializers.CharField(max_length=50, help_text='设备SN码')
    spirit_id = serializers.IntegerField(required=False, allow_null=True, help_text='智能体ID')


class DeviceVerifySerializer(serializers.Serializer):
    """验证设备SN序列化器"""
    
    sn = serializers.CharField(max_length=50, help_text='设备SN码')


class QueryByMacSerializer(serializers.Serializer):
    """通过MAC查询SN序列化器"""
    
    mac = serializers.CharField(max_length=20, help_text='MAC地址')
    
    def validate_mac(self, value):
        # 统一MAC地址格式
        value = value.upper().replace('-', ':')
        return value