Add notice in case argument is empty for !afterstream command (fixed #26

)

CHANGELOG.md

@@ -8,10 +8,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - `!promo` now uses hangout detection determined by the `irc/idle-detection/threshold` setting.
+- `!afterstream` command without argument now prints a help message ([#26]).
 
 ### Changed
 - Fixed bug where `Settings` frontend would make the value into a string before sending it to backend.
 
+[#26]: https://github.com/udoprog/setmod/issues/26
+
 [Unreleased]: https://github.com/udoprog/setmod/compare/0.2.4...HEAD
 
 ## [0.2.4]

bot/src/irc/after_stream.rs

@@ -13,6 +13,14 @@ impl command::Handler for AfterStream {
             return Ok(());
         }
 
+        if ctx.rest().trim().is_empty() {
+            ctx.respond(
+                "You add a reminder by calling !afterstream <reminder>, \
+                 like \"!afterstream remember that you are awesome <3\"",
+            );
+            return Ok(());
+        }
+
         self.after_streams
             .push(ctx.user.target, ctx.user.name, ctx.rest())?;
         ctx.respond("Reminder added.");