// *****************************************************************************
// Copyright (C) 2018 TypeFox and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
// *****************************************************************************

import { injectable, postConstruct, inject, interfaces, Container } from '@theia/core/shared/inversify';
import {
    BaseWidget, PanelLayout, Message, ApplicationShell, Widget, StatefulWidget, ViewContainer, codicon
} from '@theia/core/lib/browser';
import { DebugSessionWidget } from './debug-session-widget';
import { DebugConfigurationWidget } from './debug-configuration-widget';
import { DebugViewModel } from './debug-view-model';
import { DebugSessionManager } from '../debug-session-manager';
import { ProgressBarFactory } from '@theia/core/lib/browser/progress-bar-factory';
import { nls } from '@theia/core/lib/common/nls';

@injectable()
export class DebugWidget extends BaseWidget implements StatefulWidget, ApplicationShell.TrackableWidgetProvider {

    static createContainer(parent: interfaces.Container): Container {
        const child = DebugSessionWidget.createContainer(parent);
        child.bind(DebugConfigurationWidget).toSelf();
        child.bind(DebugWidget).toSelf();
        return child;
    }

    static createWidget(parent: interfaces.Container): DebugWidget {
        return DebugWidget.createContainer(parent).get(DebugWidget);
    }

    static ID = 'debug';
    static LABEL = nls.localizeByDefault('Debug');

    @inject(DebugViewModel)
    readonly model: DebugViewModel;

    @inject(DebugSessionManager)
    readonly sessionManager: DebugSessionManager;

    @inject(DebugConfigurationWidget)
    protected readonly toolbar: DebugConfigurationWidget;

    @inject(DebugSessionWidget)
    protected readonly sessionWidget: DebugSessionWidget;

    @inject(ProgressBarFactory)
    protected readonly progressBarFactory: ProgressBarFactory;

    @postConstruct()
    protected init(): void {
        this.id = DebugWidget.ID;
        this.title.label = DebugWidget.LABEL;
        this.title.caption = DebugWidget.LABEL;
        this.title.closable = true;
        this.title.iconClass = codicon('debug-alt');
        this.addClass('theia-debug-container');
        this.toDispose.pushAll([
            this.toolbar,
            this.sessionWidget,
        ]);

        const layout = this.layout = new PanelLayout();
        layout.addWidget(this.toolbar);
        layout.addWidget(this.sessionWidget);

        this.toDispose.push(this.progressBarFactory({ container: this.node, insertMode: 'prepend', locationId: 'debug' }));
    }

    protected override onActivateRequest(msg: Message): void {
        super.onActivateRequest(msg);
        this.toolbar.focus();
    }

    getTrackableWidgets(): Widget[] {
        return [this.sessionWidget];
    }

    storeState(): object {
        return this.sessionWidget.storeState();
    }

    restoreState(oldState: ViewContainer.State): void {
        this.sessionWidget.restoreState(oldState);
    }

}