fix(lang): #140 - Added lang field

Author: Ahmed Sameh Mahmoud Ahmed Shehata

src/api/__tests__/config_service_tests.js

@@ -44,6 +44,26 @@ test('Should return current locale, language and country code according to Sales
 
 });
 
+test('Should override language', async t => {
+  fetchMock.get('https://atlas-config-api.dc.zalan.do/api/config/CLIENT_ID-staging.json', configJson);
+
+  const sdk = await AtlasSDK.configure({
+    client_id: 'CLIENT_ID',
+    sales_channel: 'SALES_CHANNEL',
+    is_sandbox: true,
+    lang: 'en'
+  }).catch(error => {
+    t.fail(error);
+  });
+
+  t.is(sdk.getLocale(), 'de_DE');
+  t.is(sdk.getLanguage(), 'en');
+  t.is(sdk.getCountryCode(), 'DE');
+  t.is(sdk.getConfig().clientId, 'CLIENT_ID');
+  t.is(sdk.getConfig().salesChannel, 'SALES_CHANNEL');
+
+});
+
 test.afterEach.always(() => {
   fetchMock.restore();
 });

src/api/atlas_sdk_client.js

@@ -110,7 +110,7 @@ class AtlasSDKClient {
   getLanguage() {
     const startPosition = 0;
 
-    return this.getLocale().substring(startPosition, this.getLocale().indexOf('_'));
+    return this.config.lang ? this.config.lang : this.getLocale().substring(startPosition, this.getLocale().indexOf('_'));
   }
 
   /**

src/models/__tests__/config_service_models_tests.js

@@ -29,6 +29,7 @@ test('Config should be initialized from JSON object', t => {
     client_id: 'CLIENT_ID',
     sales_channel: 'SALES_CHANNEL',
     is_sandbox: true,
+    lang: 'en',
     'atlas-catalog-api': {
       url: 'https://catalog_api.com/api'
     },
@@ -60,6 +61,7 @@ test('Config should be initialized from JSON object', t => {
   t.is(config.catalogApi.url, 'https://catalog_api.com/api');
   t.is(config.atlasCheckoutGateway.url, 'https://atlas-checkout-gateway.com');
   t.is(config.salesChannels[0].locale, 'de_DE');
+  t.is(config.lang, 'en');
   t.is(config.salesChannels[0].channel, '11111111-1111-1111-1111-111111111111');
   t.is(config.salesChannels[0].tocURL, 'https://m.zalando.de/agb/');
 });

src/models/config_models.js

@@ -48,6 +48,7 @@ const Config = createModel({
   atlasCheckoutApi: { key: 'atlas-checkout-api', type: 'object', optional: true },
   salesChannels: { key: 'sales-channels', type: 'object', model: SalesChannel },
   clientId: { key: 'client_id', type: 'string' },
+  lang: { key: 'lang', type: 'string', optional: true },
   salesChannel: { key: 'sales_channel', type: 'string' },
   recommendations: { key: 'recommendations', type: 'object', model: Recommendations },
   isSandbox: { key: 'is_sandbox', type: 'boolean' }