/*---------------------------------------------------------------------------------------------
 *  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 './typings/azdata-ext';
import * as vscode from 'vscode';
import { findAzdata, IAzdataTool } from './azdata';

let localAzdata: IAzdataTool | undefined = undefined;

export async function activate(): Promise<azdata.IExtension> {
	const outputChannel = vscode.window.createOutputChannel('azdata');
	localAzdata = await checkForAzdata(outputChannel);
	return {
		dc: {
			endpoint: {
				list: async () => {
					return executeLocalAzdataCommand(['arc', 'dc', 'endpoint', 'list']);
				}
			},
			config: {
				show: async () => {
					return executeLocalAzdataCommand(['arc', 'dc', 'config', 'show']);
				}
			}
		},
		login: async (endpoint: string, username: string, password: string) => {
			return executeLocalAzdataCommand(['login', '-e', endpoint, '-u', username], { 'AZDATA_PASSWORD': password });
		},
		postgres: {
			server: {
				list: async () => {
					return executeLocalAzdataCommand(['arc', 'postgres', 'server', 'list']);
				},
				show: async (name: string) => {
					return executeLocalAzdataCommand(['arc', 'postgres', 'server', 'show', '-n', name]);
				}
			}
		},
		sql: {
			mi: {
				list: async () => {
					return executeLocalAzdataCommand(['arc', 'sql', 'mi', 'list']);
				},
				show: async (name: string) => {
					return executeLocalAzdataCommand(['arc', 'sql', 'mi', 'show', '-n', name]);
				}
			}
		}
	};
}

async function executeLocalAzdataCommand<R>(args: string[], additionalEnvVars?: { [key: string]: string }): Promise<azdata.AzdataOutput<R>> {
	if (!localAzdata) {
		throw new Error('No azdata');
	}
	return localAzdata.executeCommand(args, additionalEnvVars);
}

async function checkForAzdata(outputChannel: vscode.OutputChannel): Promise<IAzdataTool | undefined> {
	try {
		return await findAzdata(outputChannel);
	} catch (err) {
		// Don't block on this since we want the extension to finish activating without needing user input.
		// Calls will be made to handle azdata not being installed
		promptToInstallAzdata(outputChannel).catch(e => console.log(`Unexpected error prompting to install azdata ${e}`));
	}
	return undefined;
}

async function promptToInstallAzdata(_outputChannel: vscode.OutputChannel): Promise<void> {
	//TODO: Figure out better way to display/prompt
	/*
	const response = await vscode.window.showErrorMessage(loc.couldNotFindAzdataWithPrompt, loc.install, loc.cancel);
	if (response === loc.install) {
		try {
			await downloadAndInstallAzdata(outputChannel);
			vscode.window.showInformationMessage(loc.azdataInstalled);
		} catch (err) {
			// Windows: 1602 is User Cancelling installation - not unexpected so don't display
			if (!(err instanceof ExitCodeError) || err.code !== 1602) {
				vscode.window.showWarningMessage(loc.installError(err));
			}
		}
	}
	*/
}

export function deactivate(): void { }