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/*
 * Copyright 2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.glowroot.local.ui;

import org.glowroot.shaded.netty.channel.ChannelHandlerContext;
import org.glowroot.shaded.netty.handler.codec.http.FullHttpResponse;
import org.glowroot.shaded.netty.handler.codec.http.HttpRequest;

import static org.glowroot.shaded.netty.handler.codec.http.HttpResponseStatus.OK;

class LayoutHttpService implements UnauthenticatedHttpService {

    private final HttpSessionManager httpSessionManager;
    private final LayoutService layoutJsonService;

    LayoutHttpService(HttpSessionManager httpSessionManager, LayoutService layoutJsonService) {
        this.httpSessionManager = httpSessionManager;
        this.layoutJsonService = layoutJsonService;
    }

    @Override
    public FullHttpResponse handleRequest(ChannelHandlerContext ctx, HttpRequest request)
            throws Exception {
        String layout;
        if (httpSessionManager.hasReadAccess(request)) {
            layout = layoutJsonService.getLayout();
        } else {
            layout = layoutJsonService.getNeedsAuthenticationLayout();
        }
        return HttpServices.createJsonResponse(layout, OK);
    }
}