Adding windows auth support to sql-migration and misc bug fixes. (#14816)

* - Added coming soon message for learn more.
- Potential fix for learn more message

* Renaming of controller to sqlMigrationService

* Surfacing some errors
-Azure account is stale error
-Migration Service creation error.

* Adding refresh azure token validation.

* Fixing some errors pointed during PR
-Fixing property names
-Fixing count

* Fixing migration status
- Adding special error handling for resource not found error
- Deleting unfound migrations from local cache
- Using prefetched migration status for view all

Misc fixes:
- Using SQL server version name instead of number
- Fixing Icons on sku recommendation page
- Fixing table column width in cutover dialog
- Adding spinner button to refresh.

* Fixing all strings in migration service page and dialog

* fixed a string error in create service dialog

* Adding source config page to migration to support windows auth
Some refactorings for sqlDatabaseTree (still WIP)

* refactoring assessments code 1
introducing new interface for server assessments

* Filtering out non windows sql vms
Retaining selections made by user on assessments dialog

* Fix compile errors on sqlDatabaseTree

* Exposing migration status errors in cutover dialog

* Updating extension verion

* Correcting typos
Fixing compilation erros
Removing en-us from url
Fixing function names
Make UI calls unblocking

* Unblocking dialog in case of failed assessments
Localizing string
removing blocking code from UI
Fixing comments

* Fixed broken assessment page logic

extensions/sql-migration/src/wizard/sqlSourceConfigurationPage.ts

@@ -0,0 +1,115 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as azdata from 'azdata';
+import * as os from 'os';
+import { MigrationWizardPage } from '../models/migrationWizardPage';
+import { MigrationStateModel, StateChangeEvent } from '../models/stateMachine';
+import * as constants from '../constants/strings';
+import { createLabelTextComponent, createHeadingTextComponent } from './wizardController';
+
+export class SqlSourceConfigurationPage extends MigrationWizardPage {
+	private _view!: azdata.ModelView;
+
+	constructor(wizard: azdata.window.Wizard, migrationStateModel: MigrationStateModel) {
+		super(wizard, azdata.window.createWizardPage(constants.SOURCE_CONFIGURATION, 'MigrationModePage'), migrationStateModel);
+	}
+
+	protected async registerContent(view: azdata.ModelView): Promise<void> {
+		this._view = view;
+		const form = view.modelBuilder.formContainer()
+			.withFormItems(
+				[
+					await this.createSourceCredentialContainer(),
+				]
+			);
+		await view.initializeModel(form.component());
+	}
+
+	public async onPageEnter(): Promise<void> {
+		this.wizard.registerNavigationValidator((pageChangeInfo) => {
+			return true;
+		});
+	}
+	public async onPageLeave(): Promise<void> {
+		this.wizard.registerNavigationValidator((pageChangeInfo) => {
+			return true;
+		});
+	}
+
+	protected async handleStateChange(e: StateChangeEvent): Promise<void> {
+	}
+
+	private async createSourceCredentialContainer(): Promise<azdata.FormComponent> {
+
+		const connectionProfile = await this.migrationStateModel.getSourceConnectionProfile();
+
+		let username;
+		switch (connectionProfile.authenticationType) {
+			case 'SqlLogin':
+				username = connectionProfile.userName;
+				this.migrationStateModel._authenticationType = 'SqlAuthentication';
+				break;
+			case 'Integrated':
+				username = os.userInfo().username;
+				this.migrationStateModel._authenticationType = 'WindowsAuthentication';
+				break;
+			default:
+				username = '';
+		}
+
+		const sourceCredText = createHeadingTextComponent(this._view, constants.SOURCE_CREDENTIALS);
+
+		const enterYourCredText = createLabelTextComponent(
+			this._view,
+			constants.ENTER_YOUR_SQL_CREDS(connectionProfile.serverName),
+			{
+				'width': '400px'
+			}
+		);
+
+		const usernameLable = this._view.modelBuilder.text().withProps({
+			value: constants.USERNAME,
+			requiredIndicator: true
+		}).component();
+		const usernameInput = this._view.modelBuilder.inputBox().withProps({
+			value: username,
+			required: true
+		}).component();
+		usernameInput.onTextChanged(value => {
+			this.migrationStateModel._sqlServerUsername = value;
+		});
+
+		const passwordLabel = this._view.modelBuilder.text().withProps({
+			value: constants.DATABASE_BACKUP_NETWORK_SHARE_PASSWORD_LABEL,
+			requiredIndicator: true
+		}).component();
+		const passwordInput = this._view.modelBuilder.inputBox().withProps({
+			value: (await azdata.connection.getCredentials(this.migrationStateModel.sourceConnectionId)).password,
+			required: true,
+			inputType: 'password'
+		}).component();
+		passwordInput.onTextChanged(value => {
+			this.migrationStateModel._sqlServerPassword = value;
+		});
+
+		const container = this._view.modelBuilder.flexContainer().withItems(
+			[
+				sourceCredText,
+				enterYourCredText,
+				usernameLable,
+				usernameInput,
+				passwordLabel,
+				passwordInput
+			]
+		).withLayout({
+			flexFlow: 'column'
+		}).component();
+
+		return {
+			component: container
+		};
+	}
+}