Clean up define command

src/commands/define.rs

@@ -1,5 +1,5 @@
 use serenity::{
-    framework::standard::{macros::command, Args, CommandResult},
+    framework::standard::{macros::command, Args, CommandError, CommandResult},
     model::channel::Message,
     prelude::*,
 };
@@ -8,36 +8,32 @@ use serenity::{
 #[command]
 #[aliases("what's this")]
 async fn define(ctx: &Context, message: &Message, args: Args) -> CommandResult {
-    let text: String = args.rest().trim().to_string();
+    if args.is_empty() {
-    let defs = &urbandict::get_definitions(&text);
+        return Err("No arguments!".into());
-    if !args.is_empty() {
-        match defs {
-            Err(_e) => {
-                return Err("Invalid query >w<".into());
-            }
-            Ok(v) => {
-                if !v.is_empty() {
-                    let def = &v[0];
-                    let _ = message
-                        .channel_id
-                        .send_message(&ctx.http, |m| {
-                            m.embed(|e| {
-                                e.title(format!("Query: {}, Author: {}", text, def.author))
-                                    .field(
-                                        "Definition: ",
-                                        def.definition.replace(|c| c == '[' || c == ']', ""),
-                                        false,
-                                    )
-                                    .color(0xffd1dc)
-                            })
-                        })
-                        .await;
-                } else {
-                    return Err("No results!".into());
-                }
-            }
-        }
     }
 
+    let text: String = args.rest().trim().to_string();
+    let defs =
+        urbandict::get_definitions(&text).map_err(|_| CommandError::from("Invalid query >w<"))?;
+
+    let def = defs
+        .first()
+        .ok_or_else(|| CommandError::from("No results!"))?;
+
+    let _ = message
+        .channel_id
+        .send_message(&ctx.http, |m| {
+            m.embed(|e| {
+                e.title(format!("Query: {}, Author: {}", text, def.author))
+                    .field(
+                        "Definition: ",
+                        def.definition.replace(|c| c == '[' || c == ']', ""),
+                        false,
+                    )
+                    .color(0xffd1dc)
+            })
+        })
+        .await;
+
     Ok(())
 }