bookshop/simulations/serializers.py

from rest_framework import serializers
from .models import SimulationMethod, SimulationRun


class SimulationMethodSerializer(serializers.ModelSerializer):
    class Meta:
        model = SimulationMethod
        fields = [
            'id', 'name', 'slug', 'description', 'theory',
            'parameters_schema', 'default_parameters',
            'is_active', 'created_at', 'updated_at'
        ]
        read_only_fields = ['id', 'created_at', 'updated_at']


class SimulationRunSerializer(serializers.ModelSerializer):
    method_name = serializers.CharField(source='method.name', read_only=True)
    method_slug = serializers.CharField(source='method.slug', read_only=True)
    
    class Meta:
        model = SimulationRun
        fields = [
            'id', 'method', 'method_name', 'method_slug',
            'name', 'parameters', 'status', 'progress',
            'logs', 'result_data', 'error_message',
            'input_file', 'output_file', 'created_at',
            'started_at', 'completed_at'
        ]
        read_only_fields = [
            'id', 'status', 'progress', 'logs',
            'result_data', 'error_message', 'output_file',
            'created_at', 'started_at', 'completed_at'
        ]


class SimulationRunCreateSerializer(serializers.ModelSerializer):
    class Meta:
        model = SimulationRun
        fields = ['method', 'name', 'parameters', 'input_file']
    
    def validate_parameters(self, value):
        method = self.initial_data.get('method')
        if method:
            try:
                sim_method = SimulationMethod.objects.get(pk=method)
                schema = sim_method.parameters_schema
            except SimulationMethod.DoesNotExist:
                pass
        return value


class SimulationRunDetailSerializer(serializers.ModelSerializer):
    method = SimulationMethodSerializer(read_only=True)
    
    class Meta:
        model = SimulationRun
        fields = '__all__'