Adjust Region class with valid regions plus endpoint mappings for terminal api live

src/main/java/com/adyen/Client.java

@@ -13,6 +13,10 @@ public class Client {
     public static final String LIB_VERSION = "32.0.0";
     public static final String TERMINAL_API_ENDPOINT_TEST = "https://terminal-api-test.adyen.com";
     public static final String TERMINAL_API_ENDPOINT_LIVE = "https://terminal-api-live.adyen.com";
+    public static final String ENDPOINT_TERMINAL_CLOUD_LIVE = "https://terminal-api-live.adyen.com";
+    public static final String ENDPOINT_TERMINAL_CLOUD_US_LIVE = "https://terminal-api-live-us.adyen.com";
+    public static final String ENDPOINT_TERMINAL_CLOUD_AU_LIVE = "https://terminal-api-live-au.adyen.com";
+    public static final String ENDPOINT_TERMINAL_CLOUD_APSE_LIVE = "https://terminal-api-live-apse.adyen.com";
 
     public Client() {
         this.config = new Config();

src/main/java/com/adyen/enums/Region.java

@@ -1,8 +1,59 @@
 package com.adyen.enums;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import com.adyen.Client;
 
-public enum Region {
-    EU,
-    AU,
-    US,
-    IN
-}
+public final class Region {
+
+    // Prevent instantiation
+    private Region() {
+        throw new UnsupportedOperationException("Utility class");
+    }
+
+    /**
+     * European Union region
+     */
+    public static final String EU = "eu";
+
+    /**
+     * United States region
+     */
+    public static final String US = "us";
+
+    /**
+     * Australia region
+     */
+    public static final String AU = "au";
+
+    /**
+     * India region
+     */
+    public static final String IN = "in";
+
+    /**
+     * Asia-Pacific, South East region
+     */
+    public static final String APSE = "apse";
+
+    /**
+     * List of all valid regions
+     */
+    public static final List<String> VALID_REGIONS =
+            Collections.unmodifiableList(List.of(EU, US, AU, IN, APSE));
+
+    /**
+     * Maps regions to their respective Terminal API endpoints.
+     */
+    public static final Map<String, String> TERMINAL_API_ENDPOINTS_MAPPING;
+
+    static {
+        Map<String, String> endpointsMapping = new HashMap<>();
+        endpointsMapping.put(EU, Client.ENDPOINT_TERMINAL_CLOUD_LIVE);
+        endpointsMapping.put(US, Client.ENDPOINT_TERMINAL_CLOUD_US_LIVE);
+        endpointsMapping.put(AU, Client.ENDPOINT_TERMINAL_CLOUD_AU_LIVE);
+        endpointsMapping.put(APSE, Client.ENDPOINT_TERMINAL_CLOUD_APSE_LIVE);
+        TERMINAL_API_ENDPOINTS_MAPPING = Collections.unmodifiableMap(endpointsMapping);
+    }
+}

src/test/java/com/adyen/RegionTest.java

@@ -0,0 +1,54 @@
+/**
+ * Adyen Java API Library
+ * Copyright (c) 2022 Adyen N.V.
+ * This file is open source and available under the MIT license.
+ * See the LICENSE file for more info.
+ */
+package com.adyen;
+
+import com.adyen.enums.Region;
+import org.junit.Test;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.Assert.assertEquals;
+
+public class RegionTest {
+    @Test
+    public void testValidRegions() {
+        // Define the expected list of valid regions
+        List<String> expected = List.of(
+            "eu",
+            "us",
+            "au",
+            "in",
+            "apse"
+        );
+
+        // Assert that the VALID_REGIONS in Region matches the expected list
+        assertEquals(
+            "VALID_REGIONS should match the expected regions.",
+            expected,
+            Region.VALID_REGIONS
+        );
+    }
+
+    @Test
+    public void testTerminalApiEndpointsMapping() {
+        // Define the expected map of region to endpoint mappings
+        Map<String, String> expected = Map.of(
+            "eu", "https://terminal-api-live.adyen.com",
+            "us", "https://terminal-api-live-us.adyen.com",
+            "au", "https://terminal-api-live-au.adyen.com",
+            "apse", "https://terminal-api-live-apse.adyen.com"
+        );
+
+        // Assert that the TERMINAL_API_ENDPOINTS_MAPPING in Region matches the expected map
+        assertEquals(
+            "TERMINAL_API_ENDPOINTS_MAPPING should match the expected mappings.",
+            expected,
+            Region.TERMINAL_API_ENDPOINTS_MAPPING
+        );
+    }
+}