// *****************************************************************************
// Copyright (C) 2020 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, inject } from '@theia/core/shared/inversify';
import { EnvVariablesServer } from '@theia/core/lib/common/env-variables';
import URI from '@theia/core/lib/common/uri';

@injectable()
export class PluginTheiaEnvironment {

    @inject(EnvVariablesServer)
    protected readonly environments: EnvVariablesServer;

    protected _pluginsDirUri: URI | undefined;
    async getPluginsDirUri(): Promise<URI> {
        if (!this._pluginsDirUri) {
            const configDir = new URI(await this.environments.getConfigDirUri());
            this._pluginsDirUri = configDir.resolve('plugins');
        }
        return this._pluginsDirUri;
    }

}