// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT license.

import * as vscode from "vscode";

import { getReleaseNotesEntries, findLatestReleaseNotes, timeToString } from "../utils";

export enum HelpViewType {

Auto = "auto",

Overview = "overview",

GettingStarted = "gettingStarted",

}

function showInfoButton() {

const config = vscode.workspace.getConfiguration("java.help");

const firstView = config.get("firstView");

let infoButton = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Right);

if (firstView === HelpViewType.GettingStarted) {

infoButton.command = "java.gettingStarted";

} else {

infoButton.command = "java.overview";

}

infoButton.text = "$(info)";

infoButton.tooltip = "Learn more about Java features";

infoButton.show();

}

type ReleaseNotesPresentationHistoryEntry = { version: string, timeStamp: string };

const RELEASE_NOTE_PRESENTATION_HISTORY = "releaseNotesPresentationHistory";

export async function showReleaseNotesOnStart(context: vscode.ExtensionContext) {

const entries = await getReleaseNotesEntries(context);

const latest = findLatestReleaseNotes(entries);

const history: ReleaseNotesPresentationHistoryEntry[] = context.globalState.get(RELEASE_NOTE_PRESENTATION_HISTORY) || [];

if (history.some(entry => entry.version === latest.version)) {

return;

}

await vscode.commands.executeCommand("java.showReleaseNotes", "latest");

history.push({

version: latest.version,

timeStamp: timeToString(new Date())

});

context.globalState.update(RELEASE_NOTE_PRESENTATION_HISTORY, history);

}

export function initialize(context: vscode.ExtensionContext) {

showInfoButton();

}