utils.selectionMessage: add support for multiple values

src/lib/utils.js

@@ -160,7 +160,13 @@ async function hastebin(body) {
 }
 
 hf.selectionMessages = hf.selectionMessages || new Eris.Collection();
-async function selectionMessage(msg, heading, options, timeout = 30000) {
+async function selectionMessage(
+  msg,
+  heading,
+  options,
+  timeout = 30000,
+  maxItems = 1
+) {
   const data = {
     content: heading,
     allowedMentions: {
@@ -177,6 +183,7 @@ async function selectionMessage(msg, heading, options, timeout = 30000) {
             type: 3,
             custom_id: msg.id,
             options: [],
+            max_values: maxItems,
           },
         ],
       },
@@ -193,15 +200,15 @@ async function selectionMessage(msg, heading, options, timeout = 30000) {
       },
     ],
   };
-  options.slice(0, 20).forEach((value) => {
+  options.slice(0, 25).forEach((value) => {
     data.components[0].components[0].options.push({
       label: value.display,
       value: value.key,
       description: value.description,
     });
   });
-  if (options.length > 20) {
+  if (options.length > 25) {
-    data.content += `\n\nDisplaying 20/${options.length} results`;
+    data.content += `\n\nDisplaying 25/${options.length} results`;
   }
 
   const displayMessage = await msg.channel.createMessage(data);
@@ -235,9 +242,17 @@ async function selectionMessage(msg, heading, options, timeout = 30000) {
 
             displayMessage.delete();
 
-            const result = options.filter(
+            let result;
+
+            if (maxItems > 1) {
+              result = options
+                .filter((opt) => interaction.data.values.includes(opt.key))
+                .map((opt) => opt.value);
+            } else {
+              result = options.filter(
                 (opt) => opt.key == interaction.data.values[0]
               )[0].value;
+            }
 
             resolve(result);
           }