"""
Base Configuration for NCAkit
Provides centralized configuration management for all modules.
"""
import os
from pathlib import Path
from pydantic_settings import BaseSettings
from typing import Optional, Dict, Any


class BaseConfig(BaseSettings):
    """
    Base configuration class that all module configs should extend.
    Provides common settings and utilities.
    """
    
    # Server Configuration
    port: int = 8880
    log_level: str = "info"
    debug: bool = False
    
    # Environment
    docker: bool = False
    dev: bool = False
    data_dir_path: Optional[str] = None
    
    class Config:
        env_file = ".env"
        case_sensitive = False
        extra = "ignore"
    
    @property
    def base_data_dir(self) -> Path:
        """Get the base data directory path"""
        if self.data_dir_path:
            return Path(self.data_dir_path)
        
        if self.docker:
            return Path("/data")
        
        # For local development
        home = Path.home()
        return home / ".ncakit"
    
    def ensure_base_directories(self):
        """Ensure base directories exist"""
        self.base_data_dir.mkdir(parents=True, exist_ok=True)


class NCAkitConfig(BaseConfig):
    """
    Main NCAkit configuration.
    Aggregates all module-specific settings.
    """
    
    # ===================
    # Video Creator Module Config
    # ===================
    pexels_api_key: Optional[str] = None
    pixabay_api_key: Optional[str] = None  # Optional: Pixabay API for additional video source
    hf_tts: Optional[str] = None
    whisper_model: str = "tiny.en"
    whisper_verbose: bool = False
    concurrency: int = 1
    video_cache_size_in_bytes: int = 2684354560  # 2.5GB
    
    # ===================
    # Add new module configs here
    # Example:
    # openai_api_key: Optional[str] = None
    # ===================
    
    # ===================
    # Story Reels Module Config
    # ===================
    nvidia_api_key: Optional[str] = None  # NVIDIA API key (primary)
    cf_url: Optional[str] = None  # Cloudflare Worker URL (fallback)
    cf_api: Optional[str] = None  # Cloudflare API key (fallback)
    gemini_api_key: Optional[str] = None  # For AI script generation (fallback)
    groq_api: Optional[str] = None  # Groq API key (primary for script generation)
    
    # ===================
    # HF Cloud Storage (Optional)
    # ===================
    hf_repo: Optional[str] = None  # HF repo for videos (e.g., "username/ncakit-videos")
    # Note: Uses HF_TOKEN from environment for auth
    @property
    def videos_dir_path(self) -> Path:
        """Directory for storing generated videos"""
        path = self.base_data_dir / "videos"
        path.mkdir(parents=True, exist_ok=True)
        return path
    
    @property
    def temp_dir_path(self) -> Path:
        """Directory for temporary files"""
        path = self.base_data_dir / "temp"
        path.mkdir(parents=True, exist_ok=True)
        return path
    
    @property
    def whisper_model_dir(self) -> Path:
        """Directory for Whisper models"""
        path = self.base_data_dir / "whisper_models"
        path.mkdir(parents=True, exist_ok=True)
        return path
    
    @property
    def music_dir_path(self) -> Path:
        """Directory for music files"""
        return Path(__file__).parent / "static" / "music"
    
    def ensure_directories(self):
        """Ensure all required directories exist"""
        self.ensure_base_directories()
        self.videos_dir_path.mkdir(parents=True, exist_ok=True)
        self.temp_dir_path.mkdir(parents=True, exist_ok=True)
        self.whisper_model_dir.mkdir(parents=True, exist_ok=True)


# Global config instance
config = NCAkitConfig()