Function compositeWithEntryConfig

eat/eat.ts:229–357

(parmas: {
  entry: EntryConfig;
  msg: Api.Message;
  isEat2: boolean;
  trigger?: Api.Message;
})

}

async function compositeWithEntryConfig(parmas: {
  entry: EntryConfig;
  msg: Api.Message;
  isEat2: boolean;
  trigger?: Api.Message;
}): Promise<void> {
  const { entry, msg, isEat2, trigger } = parmas;

  const youAvatarBuffer = await downloadAvatar(msg, isEat2);
  if (!youAvatarBuffer) return;

  if (entry.stamp) {
    const stampCfg = entry.stamp || {};
    const size = stampCfg.size ?? 512;
    const scale = stampCfg.scale ?? 0.9;
    const rotate = stampCfg.rotate ?? -12;
    const opacity = stampCfg.opacity ?? 0.6;

    const stampBuf = await getAssetBuffer(entry.url);

    const base = await sharp(youAvatarBuffer)
      .resize(size, size, { fit: "cover" })
      .png()
      .toBuffer();

    const stampRotated = await sharp(stampBuf)
      .resize({ width: Math.round(size * scale) })
      .rotate(rotate, { background: { r: 0, g: 0, b: 0, alpha: 0 } })
      .ensureAlpha()
      .linear([1, 1, 1, opacity], [0, 0, 0, 0])
      .png()
      .toBuffer();

    const stampFinal = await sharp(stampRotated)
      .resize({ width: size, height: size, fit: "inside" })
      .png()
      .toBuffer();

    const outBuffer = await sharp(base)
      .composite([{ input: stampFinal, gravity: "center" }])
      .webp({ lossless: true })
      .toBuffer();

    const file = new CustomFile("output.webp", outBuffer.length, "", outBuffer);
    const { width = size, height = size } = await sharp(outBuffer).metadata();

    const stickerAttr = new Api.DocumentAttributeSticker({
      alt: entry.name,
      stickerset: new Api.InputStickerSetEmpty(),
    });

    const imageSizeAttr = new Api.DocumentAttributeImageSize({
      w: width,
      h: height,
    });

    const filenameAttr = new Api.DocumentAttributeFilename({
      fileName: "output.webp",