🥅 Catch errors caused by null config (#682)

Fixes #682

src/router.js

@@ -19,7 +19,17 @@ import { metaTagData, startingView, routePaths } from '@/utils/defaults';
 import ErrorHandler from '@/utils/ErrorHandler';
 
 // Import data from users conf file. Note that rebuild is required for this to update.
-import { pages, pageInfo, appConfig } from '../public/conf.yml';
+import conf from '../public/conf.yml';
+
+if (!conf) {
+  ErrorHandler('You\'ve not got any data in your config file yet.');
+}
+
+// Assign top-level config fields, check not null
+const config = conf || {};
+const pages = config.pages || [];
+const pageInfo = config.pageInfo || {};
+const appConfig = config.appConfig || {};
 
 Vue.use(Router);
 const progress = new Progress({ color: 'var(--progress-bar)' });

src/store.js

@@ -56,9 +56,11 @@ const store = new Vuex.Store({
       return state.config;
     },
     pageInfo(state) {
+      if (!state.config) return {};
       return state.config.pageInfo || {};
     },
     appConfig(state) {
+      if (!state.config) return {};
       return state.config.appConfig || {};
     },
     sections(state) {
@@ -140,8 +142,9 @@ const store = new Vuex.Store({
       state.config = config;
     },
     [SET_REMOTE_CONFIG](state, config) {
-      if (!config.appConfig) config.appConfig = {};
-      state.remoteConfig = config;
+      const notNullConfig = config || {};
+      if (!notNullConfig.appConfig) notNullConfig.appConfig = {};
+      state.remoteConfig = notNullConfig;
     },
     [SET_LANGUAGE](state, lang) {
       const newConfig = state.config;

src/utils/ConfigAccumalator.js

@@ -31,7 +31,11 @@ export default class ConfigAccumulator {
   appConfig() {
     let appConfigFile = {};
     // Set app config from file
-    if (this.conf) appConfigFile = this.conf.appConfig || buildConf.appConfig || {};
+    if (this.conf && this.conf.appConfig) {
+      appConfigFile = this.conf.appConfig;
+    } else if (buildConf && buildConf.appConfig) {
+      appConfigFile = buildConf.appConfig;
+    }
     // Fill in defaults if anything missing
     let usersAppConfig = defaultAppConfig;
     if (localStorage[localStorageKeys.APP_CONFIG]) {