Add Azure region enum and helper methods to azurecore (#10776)

* Add Azure region enum and helper methods

* change module definition

* Add comments

* fix names

* Optional param

extensions/azurecore/src/utils.ts

@@ -0,0 +1,100 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as loc from './localizedConstants';
+import { AzureRegion } from './azurecore';
+
+/**
+ * Converts a region value (@see AzureRegion) into the localized Display Name
+ * @param region The region value
+ */
+export function getRegionDisplayName(region?: string): string {
+	region = (region ?? '');
+
+	switch (region.toLocaleLowerCase()) {
+		case AzureRegion.australiacentral:
+			return loc.australiaCentral;
+		case AzureRegion.australiacentral2:
+			return loc.australiaCentral2;
+		case AzureRegion.australiaeast:
+			return loc.australiaEast;
+		case AzureRegion.australiasoutheast:
+			return loc.australiaSouthEast;
+		case AzureRegion.brazilsouth:
+			return loc.brazilSouth;
+		case AzureRegion.canadacentral:
+			return loc.canadaCentral;
+		case AzureRegion.canadaeast:
+			return loc.canadaEast;
+		case AzureRegion.centralindia:
+			return loc.centralIndia;
+		case AzureRegion.centralus:
+			return loc.centralUS;
+		case AzureRegion.eastasia:
+			return loc.eastAsia;
+		case AzureRegion.eastus:
+			return loc.eastUS;
+		case AzureRegion.eastus2:
+			return loc.eastUS2;
+		case AzureRegion.francecentral:
+			return loc.franceCentral;
+		case AzureRegion.francesouth:
+			return loc.franceSouth;
+		case AzureRegion.germanynorth:
+			return loc.germanyNorth;
+		case AzureRegion.germanywestcentral:
+			return loc.germanyWestCentral;
+		case AzureRegion.japaneast:
+			return loc.japanEast;
+		case AzureRegion.japanwest:
+			return loc.japanWest;
+		case AzureRegion.koreacentral:
+			return loc.koreaCentral;
+		case AzureRegion.koreasouth:
+			return loc.koreaSouth;
+		case AzureRegion.northcentralus:
+			return loc.northCentralUS;
+		case AzureRegion.northeurope:
+			return loc.northEurope;
+		case AzureRegion.norwayeast:
+			return loc.norwayEast;
+		case AzureRegion.norwaywest:
+			return loc.norwayWest;
+		case AzureRegion.southafricanorth:
+			return loc.southAfricaNorth;
+		case AzureRegion.southafricawest:
+			return loc.southAfricaWest;
+		case AzureRegion.southcentralus:
+			return loc.southCentralUS;
+		case AzureRegion.southeastasia:
+			return loc.southEastAsia;
+		case AzureRegion.southindia:
+			return loc.southIndia;
+		case AzureRegion.switzerlandnorth:
+			return loc.switzerlandNorth;
+		case AzureRegion.switzerlandwest:
+			return loc.switzerlandWest;
+		case AzureRegion.uaecentral:
+			return loc.uaeCentral;
+		case AzureRegion.uaenorth:
+			return loc.uaeNorth;
+		case AzureRegion.uksouth:
+			return loc.ukSouth;
+		case AzureRegion.ukwest:
+			return loc.ukWest;
+		case AzureRegion.westcentralus:
+			return loc.westCentralUS;
+		case AzureRegion.westeurope:
+			return loc.westEurope;
+		case AzureRegion.westindia:
+			return loc.westIndia;
+		case AzureRegion.westus:
+			return loc.westUS;
+		case AzureRegion.westus2:
+			return loc.westUS2;
+	}
+	console.warn(`Unknown Azure region ${region}`);
+	return region;
+}