#!/usr/bin/env python3
from __future__ import annotations

import os
from dataclasses import dataclass
from pathlib import Path


def load_dotenv(path: str = ".env") -> None:
    dotenv_path = Path(path)
    if not dotenv_path.exists():
        return

    for raw_line in dotenv_path.read_text(encoding="utf-8").splitlines():
        line = raw_line.strip()
        if not line or line.startswith("#") or "=" not in line:
            continue

        key, value = line.split("=", 1)
        key = key.strip()
        value = value.strip().strip('"').strip("'")
        if key and key not in os.environ:
            os.environ[key] = value


@dataclass(frozen=True)
class AppSettings:
    discord_bot_token: str
    discord_guild_id: str
    locale: str
    animeschedule_api_token: str
    tmdb_read_access_token: str


def get_settings() -> AppSettings:
    load_dotenv()
    return AppSettings(
        discord_bot_token=os.environ.get("DISCORD_BOT_TOKEN", "").strip(),
        discord_guild_id=os.environ.get("DISCORD_GUILD_ID", "").strip(),
        locale=os.environ.get("LOCALE", "de-DE").strip() or "de-DE",
        animeschedule_api_token=os.environ.get("ANIMESCHEDULE_API_TOKEN", "").strip(),
        tmdb_read_access_token=os.environ.get("TMDB_READ_ACCESS_TOKEN", "").strip(),
    )