"""
Configuration de l'API Cheque Scanner
"""

import os
from pydantic_settings import BaseSettings
from dotenv import load_dotenv

# Charger les variables d'environnement depuis le fichier .env
load_dotenv()

class Settings(BaseSettings):
    """Configuration de l'application"""
    
    # Informations de base
    APP_NAME: str = "Cheque Scanner API"
    API_VERSION: str = "v1"
    API_PREFIX: str = f"/api/{API_VERSION}"
    DEBUG: bool = os.getenv("DEBUG", "False").lower() == "true"
    
    # Sécurité
    API_KEY: str = os.getenv("API_KEY", "your-secret-api-key")
    
    # Configuration du serveur
    HOST: str = os.getenv("HOST", "0.0.0.0")
    PORT: int = int(os.getenv("PORT", "8000"))
    
    # Configuration Redis
    REDIS_HOST: str = os.getenv("REDIS_HOST", "redis")
    REDIS_PORT: int = int(os.getenv("REDIS_PORT", "6379"))
    REDIS_DB: int = int(os.getenv("REDIS_DB", "0"))
    REDIS_URL: str = os.getenv("REDIS_URL", f"redis://{REDIS_HOST}:{REDIS_PORT}/{REDIS_DB}")
    
    # Configuration des files d'attente
    QUEUE_NAME: str = os.getenv("QUEUE_NAME", "cheque_processing")
    HIGH_PRIORITY_QUEUE_NAME: str = os.getenv("HIGH_PRIORITY_QUEUE_NAME", "cheque_processing_high")
    
    # Configuration du stockage
    UPLOAD_FOLDER: str = os.getenv("UPLOAD_FOLDER", "/app/data/uploads")
    RESULT_FOLDER: str = os.getenv("RESULT_FOLDER", "/app/data/results")
    TEMP_FOLDER: str = os.getenv("TEMP_FOLDER", "/app/data/tmp")
    MAX_CONTENT_LENGTH: int = int(os.getenv("MAX_CONTENT_LENGTH", "16777216"))  # 16MB
    ALLOWED_EXTENSIONS: set = {"png", "jpg", "jpeg", "gif", "tiff", "pdf"}
    
    # Configuration du traitement d'image
    DEFAULT_OCR_LANGUAGE: str = os.getenv("DEFAULT_OCR_LANGUAGE", "eng")
    ALTERNATIVE_OCR_LANGUAGE: str = os.getenv("ALTERNATIVE_OCR_LANGUAGE", "fra")
    TESSERACT_DATA_PATH: str = os.getenv("TESSERACT_DATA_PATH", "/usr/share/tesseract-ocr/4.00/tessdata")
    
    # Délais et timeouts
    JOB_TIMEOUT: int = int(os.getenv("JOB_TIMEOUT", "300"))  # 5 minutes
    RESULT_TTL: int = int(os.getenv("RESULT_TTL", "86400"))  # 24 heures
    
    # Limites
    MAX_WORKERS: int = int(os.getenv("MAX_WORKERS", "3"))
    RATE_LIMIT: int = int(os.getenv("RATE_LIMIT", "100"))  # requêtes par heure

    class Config:
        env_file = ".env"
        case_sensitive = True


# Instance de configuration globale
settings = Settings()

# Créer les dossiers nécessaires s'ils n'existent pas
os.makedirs(settings.UPLOAD_FOLDER, exist_ok=True)
os.makedirs(settings.RESULT_FOLDER, exist_ok=True)
os.makedirs(settings.TEMP_FOLDER, exist_ok=True)