"""Application configuration using Pydantic Settings."""
from typing import List
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    """Application settings loaded from environment variables."""

    # Database
    DATABASE_URL: str = "postgresql://audio_user:audio_password@localhost:5432/audio_classifier"

    # API Configuration
    # Comma-separated list of allowed origins, or use "*" to allow all
    CORS_ORIGINS: str = "*"
    API_HOST: str = "0.0.0.0"
    API_PORT: int = 8000

    # Audio Analysis Configuration
    ANALYSIS_USE_CLAP: bool = False
    ANALYSIS_NUM_WORKERS: int = 4
    ESSENTIA_MODELS_PATH: str = "./models"
    AUDIO_LIBRARY_PATH: str = "/audio"

    # Authentication
    ADMIN_EMAIL: str = "admin@example.com"
    ADMIN_PASSWORD: str = "changeme"
    JWT_SECRET_KEY: str = "your-secret-key-change-in-production"
    JWT_EXPIRATION_HOURS: int = 24

    # Application
    APP_NAME: str = "Audio Classifier API"
    APP_VERSION: str = "1.0.0"
    DEBUG: bool = False

    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=True
    )

    @property
    def cors_origins_list(self) -> List[str]:
        """Parse CORS origins string to list.

        If CORS_ORIGINS is "*", allow all origins.
        Otherwise, parse comma-separated list.
        """
        if self.CORS_ORIGINS.strip() == "*":
            return ["*"]
        return [origin.strip() for origin in self.CORS_ORIGINS.split(",")]


# Global settings instance
settings = Settings()