Code refactor

src/PowerShell/Utilities/ScriptBuilder.ts

@@ -0,0 +1,16 @@
+export default class ScriptBuilder {
+    script: string;
+    getScript(scheme: string, tenantId: string, servicePrincipalId: string, servicePrincipalKey: string, subscriptionId: string, environment: string, scopeLevel: string): string {
+        this.script += `Clear-AzContext -Scope Process; Clear-AzContext -Scope CurrentUser -Force -ErrorAction SilentlyContinue;`;
+        if (scheme === "ServicePrincipal") {
+            this.script += `Connect-AzAccount -ServicePrincipal -Tenant ${tenantId} -Credential \
+            (New-Object System.Management.Automation.PSCredential('${servicePrincipalId}',(ConvertTo-SecureString ${servicePrincipalKey} -AsPlainText -Force))) \
+                -Environment ${environment};`;
+            if (scopeLevel === "Subscription") {
+                this.script += `Set-AzContext -SubscriptionId ${subscriptionId} -TenantId ${tenantId};`;
+            }
+        }
+        this.script += `Get-AzContext`;
+        return this.script;
+    }
+}