From 8ce37a96b2c1378cd0545eb91541be2eedfa7652 Mon Sep 17 00:00:00 2001
From: Zsolt Ero <zsolt.ero@gmail.com>
Date: Fri, 17 Oct 2025 11:46:44 +0200
Subject: [PATCH] debug

---
 website/public/debug/lang/colon.js | 39 ++++++++++++++++++++----------
 1 file changed, 26 insertions(+), 13 deletions(-)

diff --git a/website/public/debug/lang/colon.js b/website/public/debug/lang/colon.js
index 8c3b0d6..3214f73 100644
--- a/website/public/debug/lang/colon.js
+++ b/website/public/debug/lang/colon.js
@@ -29,17 +29,14 @@ function modifyStyle({ style, langCode }) {
       separator = '\n'
     }
 
-    // the default is "en", not "int"
-    let parts
-    if (langCode === 'int') {
-      parts = [['get', 'name']]
-    } else {
-      parts = [
-        ['get', `name_${langCode}`],
-        ['get', `name:${langCode}`],
-        ['get', 'name'],
-      ]
-    }
+    const nameUnderscore = `name_${langCode}`
+    const nameColon = `name:${langCode}`
+
+    // Construct parts with exactly name_ and name: versions only (no int special case, no 'name' fallback)
+    const parts = [
+      ['get', nameUnderscore],
+      ['get', nameColon],
+    ]
 
     layer.layout['text-field'] = [
       'case',
@@ -47,6 +44,22 @@ function modifyStyle({ style, langCode }) {
       ['concat', ['get', 'name:latin'], separator, ['get', 'name:nonlatin']],
       ['coalesce', ...parts],
     ]
+
+    // Set color to red if both exist and are different, black otherwise
+    if (!layer.paint) layer.paint = {}
+
+    layer.paint['text-color'] = [
+      'case',
+      // If both name_ and name: exist and are different, show red
+      [
+        'all',
+        ['has', nameUnderscore],
+        ['has', nameColon],
+        ['!=', ['get', nameUnderscore], ['get', nameColon]]
+      ],
+      '#ff0000', // Red when different
+      '#000000'  // Black when same or only one exists
+    ]
   }
 }
 
@@ -62,8 +75,8 @@ function applyLanguage() {
 map.on('load', () => {
   // Add default hash if not present
   if (!window.location.hash) {
-    alert('To change the map language, modify the language code in the URL.\n\nExamples:\n• #en → English\n• #de → German\n• #fr → French\n• #es → Spanish\n• #int → International names\n\nDefault language set to: en (English)')
-    window.location.hash = '#es'
+    alert('To change the map language, modify the language code in the URL #.\nLabels will be RED if name_xx and name:xx differ')
+    window.location.hash = '#en'
     // The hashchange event will trigger applyLanguage()
   } else {
     applyLanguage()