from rest_framework import serializers
from core.apps.payment.models import PaymentModel

class BasePaymentSerializer(serializers.ModelSerializer):
    payment_method_display = serializers.CharField(source="get_payment_method_display", read_only=True)
    status_display = serializers.CharField(source="get_status_display", read_only=True)
    payer_name = serializers.CharField(source="payer.get_full_name", read_only=True)
    valuation_number = serializers.CharField(source="valuation.conclusion_number", read_only=True)

    class Meta:
        model = PaymentModel
        fields = [
            "id",
            "valuation",
            "valuation_number",
            "payer",
            "payer_name",
            "amount",
            "payment_method",
            "payment_method_display",
            "status",
            "status_display",
            "transaction_id",
            "paid_at",
            "created_at",
        ]

class ListPaymentSerializer(BasePaymentSerializer):
    class Meta(BasePaymentSerializer.Meta):
        fields = [
            "id",
            "valuation_number",
            "payer_name",
            "amount",
            "payment_method_display",
            "status_display",
            "paid_at",
        ]

class RetrievePaymentSerializer(BasePaymentSerializer):
    class Meta(BasePaymentSerializer.Meta):
        fields = BasePaymentSerializer.Meta.fields + [
            "note",
            "updated_at",
        ]

class CreatePaymentSerializer(BasePaymentSerializer):
    class Meta(BasePaymentSerializer.Meta):
        fields = [
            "valuation",
            "payer",
            "amount",
            "payment_method",
            "status",
            "transaction_id",
            "paid_at",
            "note",
        ]