Some echo tests added.

internal/input/messaging.go

@@ -0,0 +1,32 @@
+// Copyright (c) 2026 Storm Dragon
+// Authors: Storm Dragon, Angus Kola
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package input
+
+import "strings"
+
+// Message commands are independent of the physical key. Configured bindings,
+// learn mode and both keyboard layouts use the same numbered requests.
+func MessageCommand(index int, copyMessage bool) Command {
+	if index < 0 || index >= 9 {
+		return ""
+	}
+	action := "review"
+	if copyMessage {
+		action = "copy"
+	}
+	return Command(action + "-chat-message-" + string(rune('1'+index)))
+}
+
+func MessageCommandIndex(command Command) (index int, copyMessage, ok bool) {
+	number, found := strings.CutPrefix(string(command), "review-chat-message-")
+	if !found {
+		number, found = strings.CutPrefix(string(command), "copy-chat-message-")
+		copyMessage = true
+	}
+	if !found || len(number) != 1 || number[0] < '1' || number[0] > '9' {
+		return 0, false, false
+	}
+	return int(number[0] - '1'), copyMessage, true
+}