a lot of thingssss

labscore/utils/attachment.js

@@ -0,0 +1,57 @@
+
+
+const attachmentTypes = Object.freeze({
+  image: ["image/png", "image/jpeg", "image/gif"]
+})
+
+async function getRecentMedia(context, limit){
+  if (!context.message.channel) {
+    return undefined;
+  } else if (context.message.attachments.length > 0) {
+    return context.message.attachments.first();
+  }
+  const messages = await context.message.channel.fetchMessages({
+    limit
+  });
+
+  if (!messages) {
+    return undefined;
+  }
+
+  let attachments = [];
+  for(const m of messages){
+    let message = m[1]
+    if ( // First the attachment on the message
+      message.attachments.first()
+    ) { attachments.push(message.attachments.first())
+    } else if ( // Then the embed image
+      message.embeds.length > 0 &&
+      message.embeds.toArray()[0].image
+    ) { attachments.push(message.embeds.toArray()[0].image) 
+    } else if (
+      message.embeds.length > 0 &&
+      message.embeds.toArray()[0].thumbnail
+    ) { attachments.push(message.embeds.toArray()[0].thumbnail) }
+  }
+  return attachments;
+}
+
+// simple helpers
+
+async function getRecentImage(context, limit){
+  let attachments = await getRecentMedia(context, limit)
+  let at;
+  let validImages = attachmentTypes.image
+  for(const a of attachments){
+    if(a.contentType && validImages.includes(a.contentType) && at === undefined){ // discord attachment
+      at = a.url
+    } else if (!a.content_type && at === undefined){ // other form of media
+      at = a.url
+    }
+  }
+  return at;
+}
+
+module.exports = {
+  getRecentImage
+}