"""GIF 倒放 —— 触发器(Trigger)层。"""

from __future__ import annotations

from nonebot import require
from nonebot.adapters.onebot.v11 import MessageEvent, Bot
from nonebot.log import logger
from nonebot.plugin.on import on_keyword
from nonebot_plugin_alconna import UniMessage

from hexi.core.message_utils import get_reply_message

from ..services.gif import reverse_gif_bytes

require("nonebot_plugin_alconna")

re_gif = on_keyword({"倒放"})


@re_gif.handle()
async def rev_gif(event: MessageEvent, bot: Bot):
    # 情况1，用户对需要倒放的gif进行回复
    messages = get_reply_message(event)
    await match_revgif(messages)


async def match_revgif(messages):
    img_urls = []
    for message in messages:
        logger.info(f"遍历消息: {message}")
        if message.type != "image":
            continue
        url = message.data.get("url")
        if url:
            img_urls.append(url)
    if not img_urls:
        logger.info("消息中没有图片")
        return
    for url in img_urls:
        logger.info(f"获取到的图片链接：{url}")
    await UniMessage.text("ℹ正在翻转图片序列，请稍候").send()
    data, err = await reverse_gif_bytes(img_urls)
    if err:
        await UniMessage.text(err).send()
        return
    await UniMessage.image(raw=data).send()