from rest_framework import serializers

from apps.processing.models import StepExecution


class StepExecutionSerializer(serializers.ModelSerializer):
    order_number = serializers.CharField(source="order.order_number", read_only=True)
    step_key = serializers.CharField(source="step.key", read_only=True)
    assigned_to_name = serializers.CharField(source="assigned_to.username", read_only=True)

    class Meta:
        model = StepExecution
        fields = [
            "id", "order", "order_number", "step", "step_key", "state", "attempt",
            "assigned_to", "assigned_to_name", "started_at", "completed_at",
        ]