Created Source Model for Analytics region

Author: mohitalgolia

Model/Source/AnalyticsRegion.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Algolia\AlgoliaSearch\Model\Source;
+
+use Magento\Framework\Option\ArrayInterface;
+
+class AnalyticsRegion implements ArrayInterface
+{
+    public function toOptionArray()
+    {
+        return [
+            ['value' => 'us', 'label' => __('United States')],
+            ['value' => 'de', 'label' => __('Europe (Germany)')],
+        ];
+    }
+}

etc/adminhtml/system.xml

@@ -111,13 +111,13 @@
                 </field>
             </group>
             <group id="algolia_cookie_configuration" translate="label" type="text" sortOrder="70" showInDefault="1" showInWebsite="1" showInStore="1">
-                <label>Algolia Cookie Configuration</label>    
+                <label>Algolia Cookie Configuration</label>
                 <attribute type="expanded">1</attribute>
                 <comment>
                     <![CDATA[
                          If your Magento cookie settings, specifically <b>General > Web > Default Cookie Settings > Cookie Restriction Mode</b> is set to "No," we will consider it as Implicit Cookie Consent. In this case, the useCookie will be set to True by default for all insight events. Conversely, if <b>Cookie Restriction Mode is set to 'Yes,'</b> Insight events will not be allowed without explicit cookie consent.
                         ]]>
-                </comment>    
+                </comment>
                 <field id="default_consent_cookie_name" translate="label comment" type="text" sortOrder="10" showInDefault="1" showInWebsite="1" showInStore="1">
                     <label>Consent Cookie Name</label>
                     <comment>
@@ -1170,7 +1170,7 @@
                 <field id="customer_groups_enable" translate="label comment" type="select" sortOrder="20" showInDefault="1" showInWebsite="1" showInStore="1">
                     <label>Enable Customer Groups</label>
                     <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
-                    <backend_model>Algolia\AlgoliaSearch\Model\Backend\Replica</backend_model>    
+                    <backend_model>Algolia\AlgoliaSearch\Model\Backend\Replica</backend_model>
                     <comment>
                         <![CDATA[
                             Do you want to take into account customer groups and display the price of the logged-in group instead of the default price?
@@ -1259,11 +1259,9 @@
                             If your Algolia plan allows a higher record size limit, you can customize the record size limit.]]>
                     </comment>
                 </field>
-                <field id="analytics_region" translate="label comment" type="text" sortOrder="96" showInDefault="1">
+                <field id="analytics_region" translate="label comment" type="select" sortOrder="96" showInDefault="1">
                     <label>Analytics Region</label>
-                    <comment>
-                        <![CDATA[Default value is 'us']]>
-                    </comment>
+                    <source_model>Algolia\AlgoliaSearch\Model\Source\AnalyticsRegion</source_model>
                 </field>
             </group>
             <group id="queue" translate="label" type="text" sortOrder="20" showInDefault="1" showInWebsite="1" showInStore="1">