"""Конфигурация из переменных окружения."""
import os
from pathlib import Path

from dotenv import load_dotenv

load_dotenv(Path(__file__).resolve().parent / ".env")

# Gitea
GITEA_URL = os.getenv("GITEA_URL", "").rstrip("/")
GITEA_TOKEN = os.getenv("GITEA_TOKEN") or os.getenv("TOKEN")
REPO_OWNER = os.getenv("REPO_OWNER", "")
REPO_NAME = os.getenv("REPO_NAME", "")

# LLM (Ollama / OpenAI-compatible)
OPENAI_API_KEY = os.getenv("OPENAI_API_KEY", "ollama")
OPENAI_BASE_URL = os.getenv("OPENAI_BASE_URL", "")
OPENAI_MODEL = os.getenv("OPENAI_MODEL", "qwen3")

# Telegram
TELEGRAM_BOT_TOKEN = os.getenv("TELEGRAM_BOT_TOKEN", "")
TELEGRAM_TO_GITEA_USERNAME = os.getenv("TELEGRAM_TO_GITEA_USERNAME", "")

# Whisper (голосовые)
WHISPER_MODEL = os.getenv("WHISPER_MODEL", "small")


def validate() -> None:
    """Проверка обязательных переменных при старте."""
    missing = []
    if not GITEA_URL:
        missing.append("GITEA_URL")
    if not GITEA_TOKEN:
        missing.append("GITEA_TOKEN")
    if not REPO_OWNER:
        missing.append("REPO_OWNER")
    if not REPO_NAME:
        missing.append("REPO_NAME")
    if not TELEGRAM_BOT_TOKEN:
        missing.append("TELEGRAM_BOT_TOKEN")
    if missing:
        raise RuntimeError(f"Не заданы: {', '.join(missing)}. Проверьте .env")


def get_gitea_username(telegram_username: str | None, telegram_id: int | None) -> str:
    """Gitea username для текущего пользователя Telegram (для «на меня»)."""
    if TELEGRAM_TO_GITEA_USERNAME:
        # Один username для всех или JSON — пока только одна строка
        try:
            import json
            m = json.loads(TELEGRAM_TO_GITEA_USERNAME)
            if isinstance(m, dict) and telegram_username and telegram_username in m:
                return m[telegram_username]
            if isinstance(m, dict) and telegram_id is not None and str(telegram_id) in m:
                return m[str(telegram_id)]
        except (json.JSONDecodeError, TypeError):
            pass
        return TELEGRAM_TO_GITEA_USERNAME
    return telegram_username or ""