"""
System module serializers
"""
from rest_framework import serializers
from .models import AIPrompt, AuthorProfile, Strategy


class AIPromptSerializer(serializers.ModelSerializer):
    """Serializer for AI Prompts"""
    
    prompt_type_display = serializers.CharField(source='get_prompt_type_display', read_only=True)
    default_prompt = serializers.SerializerMethodField()
    
    class Meta:
        model = AIPrompt
        fields = [
            'id',
            'prompt_type',
            'prompt_type_display',
            'prompt_value',
            'default_prompt',
            'is_active',
            'updated_at',
            'created_at',
        ]
        read_only_fields = ['id', 'created_at', 'updated_at', 'default_prompt']
    
    def get_default_prompt(self, obj):
        """Get live default prompt from GlobalAIPrompt"""
        from .global_settings_models import GlobalAIPrompt
        try:
            global_prompt = GlobalAIPrompt.objects.get(
                prompt_type=obj.prompt_type,
                is_active=True
            )
            return global_prompt.prompt_value
        except GlobalAIPrompt.DoesNotExist:
            return f"ERROR: Global prompt '{obj.prompt_type}' not configured in admin"


class AuthorProfileSerializer(serializers.ModelSerializer):
    """Serializer for AuthorProfile"""
    
    class Meta:
        model = AuthorProfile
        fields = [
            'id', 'name', 'description', 'tone', 'language',
            'structure_template', 'is_active',
            'created_at', 'updated_at'
        ]
        read_only_fields = ['id', 'created_at', 'updated_at']


class StrategySerializer(serializers.ModelSerializer):
    """Serializer for Strategy"""
    sector_name = serializers.CharField(source='sector.name', read_only=True)
    
    class Meta:
        model = Strategy
        fields = [
            'id', 'name', 'description', 'sector', 'sector_name',
            'prompt_types', 'section_logic', 'is_active',
            'created_at', 'updated_at'
        ]
        read_only_fields = ['id', 'created_at', 'updated_at']