const fetch = require("node-fetch"); const fileType = require("file-type"); // this checks if the file is, in fact, an image const typeCheck = async (image) => { // download the file to a buffer const imageRequest = await fetch(image); const imageBuffer = await imageRequest.buffer(); try { // get the file type const imageType = fileType(imageBuffer); // check if the file is a jpeg, png, or webp if (imageType && ["image/jpeg", "image/png", "image/webp"].includes(imageType.mime)) { // if it is, then return the url with the file type return { type: imageType.ext, url: image }; } else { // if not, then return a message return "Not the correct file type"; } } catch (error) { if (error) console.error; } }; // this checks for the latest message containing an image and returns the url of the image module.exports = async (cmdMessage) => { // we start by getting the messages const messages = await cmdMessage.channel.getMessages(); // iterate over each message for (const message of messages) { // check the attachments first if (message.attachments.length !== 0) { // get type of file const type = await typeCheck(message.attachments[0].url); // move to the next message if the file isn't an image if (type === "Not the correct file type") continue; // if the file is an image then return it return type; // if there's nothing in the attachments check the embeds next } else if (message.embeds.length !== 0) { // embeds can have 2 possible entries with images, we check the thumbnail first if (message.embeds[0].thumbnail) { const type = await typeCheck(message.embeds[0].thumbnail.url); if (type === "Not the correct file type") continue; return type; // if there isn't a thumbnail check the image area } else if (message.embeds[0].image) { const type = await typeCheck(message.embeds[0].image.url); if (type === "Not the correct file type") continue; return type; } } } };