/********************************************************************************
 * 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 WITH Classpath-exception-2.0
 ********************************************************************************/

import { FrontendApplicationContribution, PreferenceSchemaProvider } from '@devpodio/core/lib/browser';
import { inject, injectable } from 'inversify';
import URI from '@devpodio/core/lib/common/uri';
import { InMemoryResources } from '@devpodio/core';
import { JsonSchemaStore } from '@devpodio/core/lib/browser/json-schema-store';
import { USER_PREFERENCE_URI } from './user-preference-provider';

@injectable()
export class PreferencesFrontendApplicationContribution implements FrontendApplicationContribution {

    @inject(JsonSchemaStore) jsonSchemaStore: JsonSchemaStore;
    @inject(PreferenceSchemaProvider) schemaProvider: PreferenceSchemaProvider;
    @inject(InMemoryResources) inmemoryResources: InMemoryResources;

    onStart() {
        const serializeSchema = () => JSON.stringify(this.schemaProvider.getCombinedSchema());
        const uri = new URI('vscode://schemas/settings/user');
        this.inmemoryResources.add(uri, serializeSchema());
        this.jsonSchemaStore.registerSchema({
            fileMatch: ['.theia/settings.json', USER_PREFERENCE_URI.toString()],
            url: uri.toString()
        });
        this.schemaProvider.onDidPreferenceSchemaChanged(() =>
            this.inmemoryResources.update(uri, serializeSchema())
        );
    }
}