import os
from pathlib import Path
from dotenv import load_dotenv

load_dotenv()


def _env(key: str, default: str = "") -> str:
    return os.getenv(key, default)


def _env_bool(key: str, default: bool = True) -> bool:
    val = os.getenv(key, "").lower()
    if val in ("0", "false", "no"):
        return False
    if val in ("1", "true", "yes"):
        return True
    return default


def _env_int(key: str, default: int) -> int:
    try:
        return int(os.getenv(key, ""))
    except (ValueError, TypeError):
        return default


# WeChat Work Bot
WECOM_BOT_ID = _env("WECOM_BOT_ID")
WECOM_BOT_SECRET = _env("WECOM_BOT_SECRET")

# Windows Local TTS
TTS_VOICE_NAME = _env("TTS_VOICE_NAME", "")  # empty = system default voice
TTS_RATE = _env_int("TTS_RATE", 0)            # SAPI rate: -10 (slowest) to 10 (fastest), default 0

# TTS
TTS_ENABLED = _env_bool("TTS_ENABLED", True)
TTS_MAX_TEXT_LENGTH = _env_int("TTS_MAX_TEXT_LENGTH", 500)