From 540801aaf7f833c4132f4bbab06846cb1332134a Mon Sep 17 00:00:00 2001
From: Andrei Gonchar <jeron312@gmail.com>
Date: Sat, 4 May 2024 14:22:42 +0300
Subject: [PATCH] Add status message about wrong layout

---
 choose/choose.go |  3 +++
 play/bindings.go | 16 +++++++++++++++-
 play/play.go     |  2 ++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/choose/choose.go b/choose/choose.go
index b7830a7..6a5a17f 100644
--- a/choose/choose.go
+++ b/choose/choose.go
@@ -61,6 +61,9 @@ func (c choose) Update(msg tea.Msg) (m tea.Model, cmd tea.Cmd) {
 		)
 
 	case tea.KeyMsg:
+		if play.ValidateBindings(msg) {
+			return c, c.list.NewStatusMessage(play.LayoutErrStatus)
+		}
 		if msg.String() == "enter" {
 			return play.New(
 				challenge.Challenge(c.list.SelectedItem().(item)),
diff --git a/play/bindings.go b/play/bindings.go
index 5f83dcb..137eea8 100644
--- a/play/bindings.go
+++ b/play/bindings.go
@@ -1,6 +1,13 @@
 package play
 
-import "github.com/charmbracelet/bubbles/key"
+import (
+	"unicode"
+
+	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+const LayoutErrStatus = "Change keyboard layout to english"
 
 type keyBindings struct {
 	short      key.Binding
@@ -53,6 +60,13 @@ func newBindings() keyBindings {
 	}
 }
 
+func ValidateBindings(msg tea.KeyMsg) bool {
+	return msg.Type == tea.KeyRunes &&
+		len(msg.Runes) == 1 &&
+		unicode.IsLetter(msg.Runes[0]) &&
+		!unicode.Is(unicode.Latin, msg.Runes[0])
+}
+
 func copyKey(k key.Binding, desc string) key.Binding {
 	k.SetHelp(k.Help().Key, desc)
 
diff --git a/play/play.go b/play/play.go
index c7f7a88..3b9f3eb 100644
--- a/play/play.go
+++ b/play/play.go
@@ -137,6 +137,8 @@ func (m model) Update(msg tea.Msg) (r tea.Model, cmd tea.Cmd) {
 
 	case tea.KeyMsg:
 		switch {
+		case ValidateBindings(msg):
+			return m, m.l.NewStatusMessage(LayoutErrStatus)
 		case key.Matches(msg, m.b.Next):
 			if m.question.questionFullyAnswered() && (!m.question.isLast) {
 				m.currentQuestion++