"""OCR Service Configuration."""
import os


class Settings:
    """Application settings loaded from environment variables."""

    def __init__(self) -> None:
        self.log_level: str = os.getenv("LOG_LEVEL", "info")
        self.host: str = os.getenv("HOST", "0.0.0.0")
        self.port: int = int(os.getenv("PORT", "8000"))
        # OCR engine configuration
        self.ocr_primary_engine: str = os.getenv("OCR_PRIMARY_ENGINE", "paddleocr")
        self.ocr_confidence_threshold: float = float(
            os.getenv("OCR_CONFIDENCE_THRESHOLD", "0.6")
        )

        # Cloud fallback configuration (disabled by default)
        self.ocr_fallback_engine: str = os.getenv("OCR_FALLBACK_ENGINE", "none")
        self.ocr_fallback_threshold: float = float(
            os.getenv("OCR_FALLBACK_THRESHOLD", "0.6")
        )
        self.google_vision_key_path: str = os.getenv(
            "GOOGLE_VISION_KEY_PATH", "/run/secrets/google-wif-config.json"
        )

        # Google Vision monthly usage cap (requests per calendar month)
        self.vision_monthly_limit: int = int(
            os.getenv("VISION_MONTHLY_LIMIT", "1000")
        )

        # Google GenAI / Gemini configuration
        self.vertex_ai_project: str = os.getenv("VERTEX_AI_PROJECT", "")
        self.vertex_ai_location: str = os.getenv(
            "VERTEX_AI_LOCATION", "global"
        )
        self.gemini_model: str = os.getenv("GEMINI_MODEL", "gemini-2.5-flash")

        # Redis configuration for job queue
        self.redis_host: str = os.getenv("REDIS_HOST", "mvp-redis")
        self.redis_port: int = int(os.getenv("REDIS_PORT", "6379"))
        self.redis_db: int = int(os.getenv("REDIS_DB", "1"))


settings = Settings()