Put api keys directly in js layer definitions

Also don't generate definitions for layers that have require missing api keys.

app/assets/javascripts/leaflet.map.js

@@ -18,19 +18,13 @@ L.OSM.Map = L.Map.extend({
     this.baseLayers = [];
 
     for (const layerDefinition of OSM.LAYER_DEFINITIONS) {
-      if (layerDefinition.apiKeyId && !OSM[layerDefinition.apiKeyId]) continue;
-
-      const layerOptions = {
+      const layer = new L.OSM[layerDefinition.leafletOsmId]({
         attribution: makeAttribution(layerDefinition.credit),
         code: layerDefinition.code,
         keyid: layerDefinition.keyId,
-        name: I18n.t(`javascripts.map.base.${layerDefinition.nameId}`)
-      };
-      if (layerDefinition.apiKeyId) {
-        layerOptions.apikey = OSM[layerDefinition.apiKeyId];
-      }
-
-      const layer = new L.OSM[layerDefinition.leafletOsmId](layerOptions);
+        name: I18n.t(`javascripts.map.base.${layerDefinition.nameId}`),
+        apikey: layerDefinition.apiKey
+      });
       this.baseLayers.push(layer);
     }
 

app/assets/javascripts/osm.js.erb

@@ -23,15 +23,7 @@ OSM = {
   FOSSGIS_VALHALLA_URL:    <%= Settings.fossgis_valhalla_url.to_json %>,
   DEFAULT_LOCALE:          <%= I18n.default_locale.to_json %>,
 
-<% if Settings.key?(:thunderforest_key) %>
-  THUNDERFOREST_KEY:       <%= Settings.thunderforest_key.to_json %>,
-<% end %>
-
-<% if Settings.key?(:tracestrack_key) %>
-  TRACESTRACK_KEY:         <%= Settings.tracestrack_key.to_json %>,
-<% end %>
-
-  LAYER_DEFINITIONS:       <%= YAML.load_file(Rails.root.join("config/layers.yml")).to_json %>,
+  LAYER_DEFINITIONS:       <%= MapLayers::definitions("config/layers.yml").to_json %>,
   LAYERS_WITH_MAP_KEY:     <%= YAML.load_file(Rails.root.join("config/key.yml")).keys.to_json %>,
 
   MARKER_GREEN:            <%= image_path("marker-green.png").to_json %>,

config/layers.yml

@@ -25,7 +25,7 @@
   code: "C"
   keyId: "cyclemap"
   nameId: "cycle_map"
-  apiKeyId: "THUNDERFOREST_KEY"
+  apiKeyId: "thunderforest_key"
   credit:
     id: "thunderforest_credit"
     children:
@@ -37,7 +37,7 @@
   code: "T"
   keyId: "transportmap"
   nameId: "transport_map"
-  apiKeyId: "THUNDERFOREST_KEY"
+  apiKeyId: "thunderforest_key"
   credit:
     id: "thunderforest_credit"
     children:
@@ -49,7 +49,7 @@
   code: "P"
   keyId: "tracestracktopo"
   nameId: "tracestracktop_topo"
-  apiKeyId: "TRACESTRACK_KEY"
+  apiKeyId: "tracestrack_key"
   credit:
     id: "tracestrack_credit"
     children:

lib/map_layers.rb

@@ -0,0 +1,15 @@
+module MapLayers
+  def self.definitions(layers_filename)
+    YAML.load_file(Rails.root.join(layers_filename)).filter_map do |layer|
+      if layer["apiKeyId"]
+        if Settings.key?(layer["apiKeyId"].to_sym)
+          layer["apiKey"] = Settings[layer["apiKeyId"]]
+          layer.delete "apiKeyId"
+          layer
+        end
+      else
+        layer
+      end
+    end
+  end
+end