"""otto 活字印刷 —— 业务逻辑(Service 层)。"""

from __future__ import annotations

import asyncio
import os
from pathlib import Path

from ..res.HuoZiYinShua.huoZiYinShua import huoZiYinShua

_PLUGIN_ROOT = Path(__file__).resolve().parents[1]

_settings = {
    "sourceDirectory": str(_PLUGIN_ROOT / "res" / "HuoZiYinShua" / "sources") + os.sep,
    "ysddSourceDirectory": str(_PLUGIN_ROOT / "res" / "HuoZiYinShua" / "ysddSources") + os.sep,
    "dictFile": str(_PLUGIN_ROOT / "res" / "HuoZiYinShua" / "dictionary.json"),
    "ysddTableFile": str(_PLUGIN_ROOT / "res" / "HuoZiYinShua" / "ysddTable.json"),
}

_HZYS = huoZiYinShua(_settings)


async def synthesize(txt: str, reverse: bool) -> bytes:
    """合成 otto 语音,返回 base64(原声大碟模式);同步调用放入线程避免阻塞事件循环。"""
    return await asyncio.to_thread(
        _HZYS.export, txt, True, 1, 1, False, reverse
    )