"""
AI Settings - Centralized model configurations and limits
Uses IntegrationSettings only - no hardcoded defaults or fallbacks.
"""
from typing import Dict, Any
import logging

logger = logging.getLogger(__name__)

# Function name aliases (for backward compatibility)
FUNCTION_ALIASES = {
    "cluster_keywords": "auto_cluster",
    "auto_cluster_keywords": "auto_cluster",
    "auto_generate_ideas": "generate_ideas",
    "auto_generate_content": "generate_content",
    "auto_generate_images": "generate_images",
}


def get_model_config(function_name: str, account) -> Dict[str, Any]:
    """
    Get model configuration from IntegrationSettings only.
    No fallbacks - account must have IntegrationSettings configured.
    
    Args:
        function_name: Name of the AI function
        account: Account instance (required)
    
    Returns:
        dict: Model configuration with 'model', 'max_tokens', 'temperature'
    
    Raises:
        ValueError: If account not provided or IntegrationSettings not configured
    """
    if not account:
        raise ValueError("Account is required for model configuration")
    
    # Resolve function alias
    actual_name = FUNCTION_ALIASES.get(function_name, function_name)
    
    # Get IntegrationSettings for OpenAI
    try:
        from igny8_core.modules.system.models import IntegrationSettings
        integration_settings = IntegrationSettings.objects.get(
            integration_type='openai',
            account=account,
            is_active=True
        )
    except IntegrationSettings.DoesNotExist:
        raise ValueError(
            f"OpenAI IntegrationSettings not configured for account {account.id}. "
            f"Please configure OpenAI settings in the integration page."
        )
    
    config = integration_settings.config or {}
    
    # Get model from config
    model = config.get('model')
    if not model:
        raise ValueError(
            f"Model not configured in IntegrationSettings for account {account.id}. "
            f"Please set 'model' in OpenAI integration settings."
        )
    
    # Validate model is in our supported list (optional validation)
    try:
        from igny8_core.utils.ai_processor import MODEL_RATES
        if model not in MODEL_RATES:
            logger.warning(
                f"Model '{model}' for account {account.id} is not in supported list. "
                f"Supported models: {list(MODEL_RATES.keys())}"
            )
    except ImportError:
        # MODEL_RATES not available - skip validation
        pass
    
    # Get max_tokens and temperature from config (with reasonable defaults for API)
    max_tokens = config.get('max_tokens', 4000)  # Reasonable default for API limits
    temperature = config.get('temperature', 0.7)  # Reasonable default
    
    # Build response format based on model (JSON mode for supported models)
    response_format = None
    try:
        from igny8_core.ai.constants import JSON_MODE_MODELS
        if model in JSON_MODE_MODELS:
            response_format = {"type": "json_object"}
    except ImportError:
        # JSON_MODE_MODELS not available - skip
        pass
    
    return {
        'model': model,
        'max_tokens': max_tokens,
        'temperature': temperature,
        'response_format': response_format,
    }