Localized station names

For #409

Work in progress

Author: hiddewie

import/sql/tile_views.sql

@@ -361,6 +361,7 @@ CREATE OR REPLACE VIEW railway_text_stations AS
       ELSE 'small'
     END AS station_size,
     name,
+    name_tags,
     CASE
       WHEN state != 'present' THEN 100
       WHEN feature = 'station' AND station = 'light_rail' THEN 450
@@ -667,7 +668,7 @@ DO $do$ BEGIN
   $$::json || '$tj$';
 END $do$;
 
-CREATE OR REPLACE FUNCTION standard_railway_text_stations(z integer, x integer, y integer)
+CREATE OR REPLACE FUNCTION standard_railway_text_stations(z integer, x integer, y integer, query json)
   RETURNS bytea
   LANGUAGE SQL
   IMMUTABLE
@@ -688,6 +689,7 @@ RETURN (
       station_size,
       railway_ref as label,
       name,
+      name_tags['name:' || (query->>'lang')::text] as localized_name,
       count,
       uic_ref,
       operator,
@@ -727,6 +729,7 @@ DO $do$ BEGIN
           "station_size": "string",
           "label": "string",
           "name": "string",
+          "localized_name": "string",
           "operator": "string",
           "operator_hash": "string",
           "network": "string",

proxy/js/styles.mjs

@@ -2425,7 +2425,7 @@ const layers = {
         'text-field': ['step', ['zoom'],
           ['get', ['global-state', 'stationLowZoomLabel']],
           10,
-          ['get', 'name'],
+          ['get', 'localized_name'],
         ],
         'text-font': ['case',
           ['in', ['get', 'state'], ['literal', ['construction', 'proposed']]], ['literal', font.italic],
@@ -2470,11 +2470,11 @@ const layers = {
       layout: {
         'symbol-z-order': 'source',
         'text-field': ['step', ['zoom'],
-          ['get', 'name'],
+          ['get', 'localized_name'],
           15,
           ['case',
-            ['>', ['coalesce', ['get', 'count'], 0], 1], ['concat', ['get', 'name'], ' (', ['get', 'count'], ')'],
-            ['get', 'name'],
+            ['>', ['coalesce', ['get', 'count'], 0], 1], ['concat', ['get', 'localized_name'], ' (', ['get', 'count'], ')'],
+            ['get', 'localized_name'],
           ],
         ],
         'text-font': ['case',