import os
from pathlib import Path
from pydantic_settings import BaseSettings
from typing import ClassVar, Optional

class Settings(BaseSettings):
    """Uygulama genelinde kullanılan ayarlar."""
    
    # Temel ayarlar
    ENVIRONMENT: str = "production"
    DEBUG: bool = False
    ENCRYPTION_KEY: str = os.environ.get("ENCRYPTION_KEY", "your-secret-key-here")
    API_PREFIX: str = "/api/v1"
    
    # Hugging Face ayarları
    HF_TOKEN: str = ""  # Hugging Face API token'ı
    HF_CACHE_DIR: Path = Path("/root/.cache/huggingface")  # Hugging Face cache dizini
    
    # ASR ve Diarization ayarları
    ASR_MODEL: str = "small"  # Whisper model (tiny, base, small, medium, large-v3)
    DIARIZATION_MODEL: str = "pyannote/speaker-diarization-3.0"
    
    # İşlem ayarları
    ANONYMIZE_DATA: bool = True
    ENHANCE_AUDIO: bool = True
    
    # Dosya ayarları
    MAX_UPLOAD_SIZE: int = 25 * 1024 * 1024  # 25 MB
    ALLOWED_EXTENSIONS: set[str] = {"wav", "mp3", "m4a", "ogg"}
    
    # Dil ayarları
    LANGUAGE: str = "tr"
    SPACY_MODEL: str = "tr_core_news_sm"  # Küçük Türkçe model
    
    # Özel tıbbi terimler dosyası
    MEDICAL_TERMS_FILE: str = "medical_terms.json"
    
    # Diarization ayarları
    MIN_SPEAKER_DURATION: float = 1.0
    MAX_SPEAKERS: int = 5
    SAMPLE_RATE: int = 16000
    
    # Cache ayarları
    CACHE_DIR: Path = Path("/tmp/voice_to_write_cache")
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"

settings = Settings()