import { Formatter } from "@ribajs/core";

/**
 * Return a resized shopify image URL
 * @see https://help.shopify.com/en/themes/liquid/filters/url-filters#img_url
 *
 * @param url
 * @param size
 * @param scale TODO
 * @param crop TODO
 * @param extension
 */
export const imgUrlFormatter: Formatter = {
  name: "img_url",
  read(
    url: string,
    size: string,
    scale?: number,
    crop?: string,
    extension?: string,
    // element?: HTMLImageElement
  ) {
    try {
      if (size === "original" || size === "master") {
        return url;
      }
      if (scale && scale !== 1) {
        size += "@" + scale + "x";
      }
      const result = url.match(/(.*\/[\w\-_.]+)\.(\w{2,4})/);

      if (!result || !result[1] || !result[2]) {
        throw new Error(`Can't match url ${url}`);
      }

      const path = result[1];
      extension = extension || result[2];
      return path + "_" + size + "." + extension;
    } catch (error) {
      console.error(error);
      return url;
    }
  },
};