from __future__ import annotations

from functools import lru_cache
from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")

    app_env: str = "dev"
    app_base_url: str = "http://localhost:8000"
    app_timezone: str = "UTC"
    app_internal_url: str = "http://app:8000"
    app_port: int = 8000

    telegram_bot_token: str

    spotify_client_id: str
    spotify_client_secret: str
    spotify_redirect_uri: str
    spotify_default_market: str = "US"

    lastfm_api_key: str | None = None

    internal_job_token: str
    db_path: str = "/data/app.db"

    default_playlist_size: int = 30
    min_new_ratio: float = Field(default=0.8, ge=0.0, le=1.0)
    recent_days_window: int = 5
    playlist_visibility: str = "private"

    @property
    def database_url(self) -> str:
        return f"sqlite+aiosqlite:///{self.db_path}"


@lru_cache
def get_settings() -> Settings:
    return Settings()