utility.banner: guild banners exposed finally

src/modules/utility.js

@@ -1010,21 +1010,50 @@ banner.callback = async function (msg, line, [user], {server, guild}) {
     true
   );
 
-  if (!userObj.banner) return "This user does not have a banner.";
+  let memberObj;
+  if (msg.guildID) {
+    memberObj = await hf.bot.requestHandler.request(
+      "GET",
+      `/guilds/${msg.guildID}/members/${id}`,
+      true
+    );
+  }
 
-  const url = `${BANNER_BASE}${userObj.id}/${userObj.banner}.${
-    userObj.banner.startsWith("a_") ? "gif?size=4096&_=.gif" : "png?size=4096"
-  }`;
+  if (!userObj.banner && !memberObj?.banner)
+    return "This user does not have a banner.";
+
+  const url =
+    userObj.banner &&
+    `${BANNER_BASE}${userObj.id}/${userObj.banner}.${
+      userObj.banner.startsWith("a_") ? "gif?size=4096&_=.gif" : "png?size=4096"
+    }`;
+
+  const guildUrl =
+    memberObj?.banner &&
+    `${CDN}guilds/${msg.guildID}/users/${userObj.id}/banners/${
+      memberObj.banner
+    }.${
+      memberObj.banner.startsWith("a_")
+        ? "gif?size=4096&_=.gif"
+        : "png?size=4096"
+    }`;
   return {
     embeds: [
-      {
+      url && {
         title: `Banner for \`${formatUsername(userObj)}\``,
         url,
         image: {
           url,
         },
       },
-    ],
+      guildUrl && {
+        title: `Server banner for \`${formatUsername(userObj)}\``,
+        url: guildUrl,
+        image: {
+          url: guildUrl,
+        },
+      },
+    ].filter((x) => !!x),
   };
 };
 hf.registerCommand(banner);