// *****************************************************************************
// Copyright (C) 2025 EclipseSource 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, inject } from '@theia/core/shared/inversify';
import { ApplicationShell, FrontendApplicationContribution } from '@theia/core/lib/browser';
import { NavigationLocationService } from '@theia/editor/lib/browser/navigation/navigation-location-service';
import { NavigationLocation } from '@theia/editor/lib/browser/navigation/navigation-location';
import { CustomEditorWidget } from './custom-editor-widget';

@injectable()
export class CustomEditorNavigationContribution implements FrontendApplicationContribution {

    @inject(ApplicationShell)
    protected readonly shell: ApplicationShell;

    @inject(NavigationLocationService)
    protected readonly locationService: NavigationLocationService;

    onStart(): void {
        this.shell.onDidChangeActiveWidget(({ newValue }) => {
            if (newValue instanceof CustomEditorWidget && newValue.resource) {
                this.locationService.navigate(service =>
                    service.register(NavigationLocation.create(newValue.resource, { line: 0, character: 0 }))
                );
            }
        });
    }
}