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/* eslint no-await-in-loop: "warn" */
/* eslint no-restricted-syntax: "off" */
/* TODO: use promises for this */
import calculatorHandler from './calculatorHandler';
import fileExists from './fileExists';
import { requestBuffer } from '../services/request';
/**
* Gets animation length. If the animation cannot be found, it will
* silently fail and return 0 instead.
* @param {string} filename the animation file name
*/
const getAnimLength = async (url) => {
const extensions = ['.gif', '.webp', '.apng'];
for (const extension of extensions) {
const urlWithExtension = url + extension;
const exists = await fileExists(urlWithExtension);
if (exists) {
const fileBuffer = await requestBuffer(urlWithExtension);
const length = calculatorHandler[extension](fileBuffer);
return length;
}
}
return 0;
};
export default getAnimLength;
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