"""
Model manager for handling multiple models
"""
from typing import Dict, Optional
import logging
from config import MODELS
from .musicgen_model import MusicGenModel
from .audioldm_model import AudioLDMModel

logger = logging.getLogger(__name__)

class ModelManager:
    def __init__(self):
        self.models = {}
        self.current_model = None
    
    def load_model(self, model_key: str) -> bool:
        """Load a specific model"""
        try:
            if model_key not in MODELS:
                raise ValueError(f"Unknown model: {model_key}")
            
            config = MODELS[model_key]
            
            logger.info(f"Loading model: {config.name}")
            
            if "musicgen" in model_key:
                self.models[model_key] = MusicGenModel(config.repo_id)
            elif "audioldm" in model_key:
                self.models[model_key] = AudioLDMModel(config.repo_id)
            
            self.current_model = model_key
            logger.info(f"Model {config.name} loaded successfully")
            return True
            
        except Exception as e:
            logger.error(f"Failed to load model {model_key}: {str(e)}")
            return False
    
    def get_model(self, model_key: Optional[str] = None):
        """Get a loaded model"""
        key = model_key or self.current_model
        if key not in self.models:
            self.load_model(key)
        return self.models.get(key)
    
    def list_models(self) -> Dict[str, str]:
        """List available models"""
        return {key: config.name for key, config in MODELS.items()}
    
    def get_model_info(self, model_key: str) -> Dict:
        """Get model information"""
        if model_key in MODELS:
            config = MODELS[model_key]
            return {
                "name": config.name,
                "max_duration": config.max_duration,
                "description": config.description,
                "default_params": config.default_params
            }
        return {}