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

// Licensed under the MIT License.

'use strict';

import { Event, EventEmitter, QuickInputButton, QuickPick, QuickPickItem } from 'vscode';

export class MockQuickPick implements QuickPick<QuickPickItem> {

public value: string = '';

public placeholder: string | undefined;

public title: string | undefined = 'foo';

public step: number | undefined;

public totalSteps: number | undefined;

public enabled: boolean = true;

public busy: boolean = false;

public ignoreFocusOut: boolean = true;

public items: QuickPickItem[] = [];

public canSelectMany: boolean = false;

public matchOnDescription: boolean = false;

public matchOnDetail: boolean = false;

public buttons: QuickInputButton[] = [];

private didChangeValueEmitter: EventEmitter<string> = new EventEmitter<string>();

private didAcceptEmitter: EventEmitter<void> = new EventEmitter<void>();

private didTriggerButtonEmitter: EventEmitter<QuickInputButton> = new EventEmitter<QuickInputButton>();

private didChangeActiveEmitter: EventEmitter<QuickPickItem[]> = new EventEmitter<QuickPickItem[]>();

private didChangeSelectedEmitter: EventEmitter<QuickPickItem[]> = new EventEmitter<QuickPickItem[]>();

private didHideEmitter: EventEmitter<void> = new EventEmitter<void>();

private _activeItems: QuickPickItem[] = [];

private _pickedItem: string;

constructor(pickedItem: string) {

this._pickedItem = pickedItem;

}

public get onDidChangeValue(): Event<string> {

return this.didChangeValueEmitter.event;

}

public get onDidAccept(): Event<void> {

return this.didAcceptEmitter.event;

}

public get onDidTriggerButton(): Event<QuickInputButton> {

return this.didTriggerButtonEmitter.event;

}

public get activeItems(): QuickPickItem[] {

return this._activeItems;

}

public set activeItems(items: QuickPickItem[]) {

this._activeItems = items;

this.didChangeActiveEmitter.fire();

}

public get onDidChangeActive(): Event<QuickPickItem[]> {

return this.didChangeActiveEmitter.event;

}

public get selectedItems(): readonly QuickPickItem[] {

return [];

}

public get onDidChangeSelection(): Event<QuickPickItem[]> {

return this.didChangeSelectedEmitter.event;

}

public get onDidHide(): Event<void> {

return this.didHideEmitter.event;

}

public show(): void {

// After a timeout select the item

setTimeout(() => {

const item = this.items.find(a => a.label === this._pickedItem);

if (item) {

this.didChangeSelectedEmitter.fire([item]);

} else {

this.didHideEmitter.fire();

}

}, 1);

}

public hide(): void {

// Do nothing.

}

public dispose(): void {

// Do nothing.

}

}