from rest_framework import serializers
from apps.core.serializers import AsyncModelSerializer
from .models import APIKey


class APIKeySerializer(AsyncModelSerializer):
    class Meta:
        model = APIKey
        fields = [
            "id", "name", "prefix", "scopes", "is_active",
            "rate_limit", "expires_at", "last_used_at",
            "created_at", "updated_at",
        ]
        read_only_fields = ["id", "prefix", "last_used_at", "created_at", "updated_at"]


class APIKeyCreateInputSerializer(serializers.Serializer):
    name = serializers.CharField(max_length=128)
    scopes = serializers.ListField(child=serializers.CharField(), required=False)
    expires_at = serializers.DateTimeField(required=False, allow_null=True)
    rate_limit = serializers.IntegerField(required=False, min_value=1)


class ExternalOrderLineInputSerializer(serializers.Serializer):
    product_code = serializers.CharField(max_length=64)
    quantity = serializers.DecimalField(max_digits=18, decimal_places=4)
    unit_price = serializers.DecimalField(max_digits=18, decimal_places=4, required=False)


class ExternalOrderCreateSerializer(serializers.Serializer):
    customer_code = serializers.CharField(max_length=64)
    warehouse_code = serializers.CharField(max_length=64, required=False)
    remark = serializers.CharField(max_length=255, required=False, allow_blank=True, default="")
    lines = ExternalOrderLineInputSerializer(many=True)