package jalview.gui;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

import jalview.bin.Cache;
import jalview.bin.Jalview;
import jalview.datamodel.Alignment;
import jalview.datamodel.AlignmentI;
import jalview.datamodel.Sequence;
import jalview.datamodel.SequenceGroup;
import jalview.datamodel.SequenceI;
import jalview.io.DataSourceType;
import jalview.io.FileLoader;
import jalview.viewmodel.ViewportRanges;

import java.awt.event.MouseEvent;

import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

public class ScalePanelTest
{
  @BeforeClass(alwaysRun = true)
  public void setUpJvOptionPane()
  {
    JvOptionPane.setInteractiveMode(false);
    JvOptionPane.setMockResponse(JvOptionPane.CANCEL_OPTION);
  }

  @Test(groups = "Functional")
  public void testPreventNegativeStartColumn()
  {
    SequenceI seq1 = new Sequence("Seq1", "MATRESS");
    SequenceI seq2 = new Sequence("Seq2", "MADNESS");
    AlignmentI al = new Alignment(new SequenceI[] { seq1, seq2 });

    AlignFrame alignFrame = new AlignFrame(al, al.getWidth(),
            al.getHeight());
    ScalePanel scalePanel = alignFrame.alignPanel.getScalePanel();

    MouseEvent mouse = new MouseEvent(scalePanel, 0, 1, 0, 4, 0, 1, false);
    scalePanel.mousePressed(mouse);
    scalePanel.mouseDragged(mouse);

    // simulate dragging selection leftwards beyond the sequences giving
    // negative X
    mouse = new MouseEvent(scalePanel, 0, 1, 0, -30, 0, 1, false);

    scalePanel.mouseReleased(mouse);

    SequenceGroup sg = scalePanel.av.getSelectionGroup();
    int startCol = sg.getStartRes();

    assertTrue(startCol >= 0);
  }

  /**
   * Test for JAL-3212
   */
  @Test(groups = "Functional")
  public void testSelectColumns_withHidden()
  {
    String seq1 = ">Seq1\nANTOFAGASTAVALPARAISOMONTEVIDEOANTANANARIVO";
    AlignFrame alignFrame = new FileLoader().LoadFileWaitTillLoaded(seq1,
            DataSourceType.PASTE);
    ScalePanel scalePanel = alignFrame.alignPanel.getScalePanel();

    /*
     * hide columns 1-20 (of 43); then 'drag' to select columns 30-31;
     * 31 is 51 in absolute columns but bug JAL-3212 reduces it to
     * endRes which is 22
     */
    AlignViewport viewport = alignFrame.getViewport();
    ViewportRanges ranges = viewport.getRanges();
    assertEquals(ranges.getStartRes(), 0);
    assertEquals(ranges.getEndRes(), 42);
    viewport.hideColumns(0, 19);
    alignFrame.alignPanel.updateLayout();
    assertEquals(ranges.getStartRes(), 0);
    assertEquals(ranges.getEndRes(), 22);
    
    int cw = viewport.getCharWidth();
    int xPos = 9 * cw + 2;
    MouseEvent mouse = new MouseEvent(scalePanel, 0, 1, 0, xPos, 0, 1,
            false);
    scalePanel.mousePressed(mouse);
    scalePanel.mouseDragged(mouse);
    xPos += cw;
    mouse = new MouseEvent(scalePanel, 0, 1, 0, xPos, 0, 1, false);
    scalePanel.mouseReleased(mouse);

    SequenceGroup sg = scalePanel.av.getSelectionGroup();
    assertEquals(sg.getStartRes(), 29);
    assertEquals(sg.getEndRes(), 30);
  }

  @BeforeClass(alwaysRun = true)
  public static void setUpBeforeClass() throws Exception
  {
    /*
     * use read-only test properties file
     */
    Cache.loadProperties("test/jalview/io/testProps.jvprops");
    Jalview.main(new String[] { "-nonews" });
  }

}