/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.vm.memory.agent.internal.models;

import static org.mockito.Matchers.anyListOf;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.mockito.Matchers.eq;

import java.net.URI;
import java.util.Arrays;

import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;

import com.redhat.thermostat.agent.http.HttpRequestService;
import com.redhat.thermostat.agent.http.HttpRequestService.Method;
import com.redhat.thermostat.common.config.experimental.ConfigurationInfoSource;
import com.redhat.thermostat.common.plugin.PluginConfiguration;
import com.redhat.thermostat.vm.memory.agent.internal.models.VmTlabStatDAOImpl.ConfigurationCreator;
import com.redhat.thermostat.vm.memory.agent.internal.models.VmTlabStatDAOImpl.JsonHelper;
import com.redhat.thermostat.vm.memory.agent.model.VmTlabStat;

public class VmTlabStatDAOTest {

    private static final String JSON = "{\"this\":\"is\",\"test\":\"JSON\"}";
    private static final String VM_ID = "0xcafe";
    private static final String AGENT_ID = "agent";
    private static final URI GATEWAY_URI = URI.create("http://example.com/jvm-memory/0.0.2/");
    
    private JsonHelper jsonHelper;
    private PluginConfiguration config;
    private HttpRequestService httpRequestService;
    private ConfigurationCreator configCreator;
    private ConfigurationInfoSource configInfoSource;

    @Before
    public void setUp() throws Exception {
        httpRequestService = mock(HttpRequestService.class);
        jsonHelper = mock(JsonHelper.class);
        when(jsonHelper.toJson(anyListOf(VmTlabStat.class))).thenReturn(JSON);
        
        config = mock(PluginConfiguration.class);
        when(config.getGatewayURL()).thenReturn(GATEWAY_URI);
        configCreator = mock(ConfigurationCreator.class);
        configInfoSource = mock(ConfigurationInfoSource.class);
        when(configCreator.create(configInfoSource)).thenReturn(config);
    }

    @Test
    public void testActivation() throws Exception {

        VmTlabStatDAOImpl dao = new VmTlabStatDAOImpl(jsonHelper, configCreator, configInfoSource);
        dao.activate();

        verify(config, times(1)).getGatewayURL();
    }

    @Test
    @Ignore
    public void verifyPutStat() throws Exception {
//      TODO: Remove @Ignore when web-gateway service for TLAB stats is available
//      See VmTlabStatDAOImpl.putStat()

        VmTlabStat stat = new VmTlabStat();
        stat.setAgentId(AGENT_ID);
        stat.setJvmId(VM_ID);
        stat.setTimeStamp(1000l);
        stat.setTotalAllocatingThreads(10l);
        stat.setTotalAllocations(1342l);
        stat.setTotalRefills(58l);
        stat.setMaxRefills(90l);
        stat.setTotalSlowAllocations(343l);
        stat.setMaxSlowAllocations(989l);
        stat.setTotalGcWaste(788l);
        stat.setMaxGcWaste(992l);
        stat.setTotalSlowWaste(899l);
        stat.setMaxSlowWaste(634l);
        stat.setTotalFastWaste(678l);
        stat.setMaxFastWaste(333l);

        VmTlabStatDAOImpl dao = new VmTlabStatDAOImpl(jsonHelper, configCreator, configInfoSource);
        dao.bindHttpRequestService(httpRequestService);
        dao.activate();
        dao.putStat(stat);

        verify(jsonHelper).toJson(Arrays.asList(stat));
        verify(httpRequestService).sendHttpRequest(eq(JSON), eq(GATEWAY_URI), eq(Method.POST));
    }
}