/*
    * Licensed under the GPL License. You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
    *
    * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
    * WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
    * PURPOSE.
   */
  package psiprobe.beans.stats.providers;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import jakarta.servlet.http.HttpServletRequest;
  
  import java.util.List;
  
  import org.jfree.data.xy.DefaultTableXYDataset;
  import org.jfree.data.xy.XYDataItem;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import psiprobe.model.stats.StatsCollection;
  
  /**
   * Tests for {@link ConnectorSeriesProvider}.
   */
  class ConnectorSeriesProviderTest {
  
    private ConnectorSeriesProvider provider;
    private StatsCollection statsCollection;
    private DefaultTableXYDataset dataset;
  
    @BeforeEach
    void setUp() {
      provider = new ConnectorSeriesProvider();
      statsCollection = new StatsCollection();
      dataset = new DefaultTableXYDataset();
    }
  
    @Test
    void testPopulateAddsSeriesWhenStatsExist() {
      List<XYDataItem> items = statsCollection.newStats("stat.connector.http-8080.requests", 10);
      items.add(new XYDataItem(1L, 100.0));
      items.add(new XYDataItem(2L, 200.0));
  
      HttpServletRequest request = mock(HttpServletRequest.class);
      when(request.getParameter("cn")).thenReturn("http-8080");
      when(request.getParameter("st")).thenReturn("requests");
      when(request.getParameter("sl")).thenReturn("Requests");
  
      provider.populate(dataset, statsCollection, request);
  
      assertEquals(1, dataset.getSeriesCount());
      assertEquals(2, dataset.getItemCount(0));
    }
  
    @Test
    void testPopulateDoesNothingWhenNoStats() {
      HttpServletRequest request = mock(HttpServletRequest.class);
      when(request.getParameter("cn")).thenReturn("http-8080");
      when(request.getParameter("st")).thenReturn("requests");
      when(request.getParameter("sl")).thenReturn("Requests");
  
      provider.populate(dataset, statsCollection, request);
  
      assertEquals(0, dataset.getSeriesCount());
    }
  
    @Test
    void testPopulateDoesNothingWhenConnectorNameNull() {
      HttpServletRequest request = mock(HttpServletRequest.class);
      when(request.getParameter("cn")).thenReturn(null);
      when(request.getParameter("st")).thenReturn("requests");
  
      provider.populate(dataset, statsCollection, request);
  
      assertEquals(0, dataset.getSeriesCount());
    }
  
    @Test
    void testPopulateDoesNothingWhenStatTypeNull() {
      HttpServletRequest request = mock(HttpServletRequest.class);
      when(request.getParameter("cn")).thenReturn("http-8080");
      when(request.getParameter("st")).thenReturn(null);
  
      provider.populate(dataset, statsCollection, request);
  
      assertEquals(0, dataset.getSeriesCount());
    }
  }