Responding to "Thanks" with "You're welcome!"

dispatch.go

@@ -54,6 +54,9 @@ func (pl *PairingLogic) dispatch(ctx context.Context, cmd string, cmdArgs []stri
 	case "version":
 		return pl.version, nil
 
+	case "thanks":
+		return youreWelcomeMessage, nil
+
 	default:
 		// this won't execute because all input has been sanitized
 		// by parseCmd() and all cases are handled explicitly above

dispatch_test.go

@@ -38,4 +38,17 @@ func Test_dispatch(t *testing.T) {
 			t.Errorf("expected %q, got %q", expected, resp)
 		}
 	})
+
+	t.Run("thanks", func(t *testing.T) {
+		resp, err := pl.dispatch(ctx, "thanks", nil, rec)
+
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		expected := "You're welcome!"
+		if resp != expected {
+			t.Errorf("expected %q, got %q", expected, resp)
+		}
+	})
 }

messages.go

@@ -30,6 +30,7 @@ var subscribeMessage string
 var unsubscribeMessage string
 
 const notSubscribedMessage string = "You're not subscribed to Pairing Bot <3"
+const youreWelcomeMessage string = "You're welcome!"
 
 var writeErrorMessage = fmt.Sprintf("Something went sideways while writing to the database. You should probably ping %v", maintainersMention())
 var readErrorMessage = fmt.Sprintf("Something went sideways while reading from the database. You should probably ping %v", maintainersMention())

parse_cmd.go

@@ -77,7 +77,8 @@ func parseCmd(cmdStr string) (string, []string, error) {
 			return "help", nil, fmt.Errorf(`%w: wanted "tomorrow"`, ErrInvalidArguments)
 		}
 		return name, []string{"tomorrow"}, nil
-
+	case "thank", "thanks":
+		return "thanks", nil, nil
 	default:
 		return "help", nil, fmt.Errorf("%w: %q", ErrUnknownCommand, name)
 	}

parse_cmd_test.go

@@ -54,6 +54,10 @@ var acceptedCommands = map[string]parseResult{
 
 	// Review content *is* case-sensitive.
 	"add-review   I :heart: Pairing Bot!\n": {"add-review", []string{"I :heart: Pairing Bot!"}},
+
+	// We appreciate being appreciated
+	"thanks":    {"thanks", nil},
+	"thank you": {"thanks", nil},
 }
 
 func TestParseCmdAccept(t *testing.T) {