ConvertX/src/converters/sharp.ts

import sharp from "sharp";

// declare possible conversions
export const properties = {
  from: ["jpeg", "png", "webp", "gif", "avif", "tiff", "svg"],
  to: ["jpeg", "png", "webp", "gif", "avif", "tiff"],
  options: {
    svg: {
      scale: {
        description: "Scale the image up or down",
        type: "number",
        default: 1,
      },
    }
  }
}

export async function convert(filePath: string, fileType: string, convertTo: string, targetPath: string, options?: any) {
  if (fileType === "svg") {
    const scale = options.scale || 1;
    const metadata = await sharp(filePath).metadata();

    if (!metadata || !metadata.width || !metadata.height) {
      throw new Error("Could not get metadata from image");
    }

    const newWidth = Math.round(metadata.width * scale)
    const newHeight = Math.round(metadata.height * scale)

    return await sharp(filePath)
					.resize(newWidth, newHeight)
					.toFormat(convertTo)
					.toFile(targetPath);
  }

  return await sharp(filePath).toFormat(convertTo).toFile(targetPath);
}