package com.revolsys.geometry.test.old.io;

import com.revolsys.geometry.model.Geometry;
import com.revolsys.geometry.model.GeometryFactory;
import com.revolsys.geometry.wkb.ParseException;
import com.revolsys.geometry.wkb.WKBReader;

import junit.framework.TestCase;
import junit.textui.TestRunner;

/**
 * Tests for reading WKB.
 *
 * @author Martin Davis
 *
 */
public class WKBReaderTest extends TestCase {

  public static void main(final String args[]) {
    TestRunner.run(WKBReaderTest.class);
  }

  private final GeometryFactory geometryFactory = GeometryFactory.DEFAULT_3D;

  public WKBReaderTest(final String name) {
    super(name);
  }

  private void checkWKBGeometry(final String wkbHex, final String expectedWKT)
    throws ParseException {
    final WKBReader wkbReader = new WKBReader(this.geometryFactory);
    final byte[] wkb = WKBReader.hexToBytes(wkbHex);
    final Geometry g2 = wkbReader.read(wkb);

    final Geometry expected = this.geometryFactory.geometry(expectedWKT);

    final boolean isEqual = expected.equals(2, g2);
    assertTrue(isEqual);

  }

  public void testShortPolygons() throws ParseException {
    // one point
    checkWKBGeometry("0000000003000000010000000140590000000000004069000000000000",
      "POLYGON ((100 200, 100 200, 100 200, 100 200))");
    // two point
    checkWKBGeometry(
      "000000000300000001000000024059000000000000406900000000000040590000000000004069000000000000",
      "POLYGON ((100 200, 100 200, 100 200, 100 200))");
  }

  public void testSinglePointLineString() throws ParseException {
    checkWKBGeometry("00000000020000000140590000000000004069000000000000",
      "LINESTRING (100 200, 100 200)");
  }

  /**
   * After removing the 39 bytes of MBR info at the front, and the
   * end-of-geometry byte, * Spatialite native BLOB is very similar
   * to WKB, except instead of a endian marker at the start of each
   * geometry in a multi-geometry, it has a start marker of 0x69.
   * Endianness is determined by the endian value of the multigeometry.
   *
   * @throws ParseException
   */
  public void testSpatialiteMultiGeometry() throws ParseException {
    // multipolygon
    checkWKBGeometry(
      "01060000000200000069030000000100000004000000000000000000444000000000000044400000000000003440000000000080464000000000008046400000000000003E4000000000000044400000000000004440690300000001000000040000000000000000003E40000000000000344000000000000034400000000000002E40000000000000344000000000000039400000000000003E400000000000003440",
      "MULTIPOLYGON (((40 40, 20 45, 45 30, 40 40)), ((30 20, 20 15, 20 25, 30 20)))'");

    // multipoint
    checkWKBGeometry(
      "0104000000020000006901000000000000000000F03F000000000000F03F690100000000000000000000400000000000000040",
      "MULTIPOINT(1 1,2 2)'");

    // multiline
    checkWKBGeometry(
      "010500000002000000690200000003000000000000000000244000000000000024400000000000003440000000000000344000000000000024400000000000004440690200000004000000000000000000444000000000000044400000000000003E400000000000003E40000000000000444000000000000034400000000000003E400000000000002440",
      "MULTILINESTRING ((10 10, 20 20, 10 40), (40 40, 30 30, 40 20, 30 10))");

    // geometrycollection
    checkWKBGeometry(
      "010700000002000000690100000000000000000010400000000000001840690200000002000000000000000000104000000000000018400000000000001C400000000000002440",
      "GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(4 6,7 10))");
  }

  /**
   * Not yet implemented satisfactorily.
   *
   * @throws ParseException
   */
  public void XXtestIllFormedWKB() throws ParseException {
    // WKB is missing LinearRing entry
    checkWKBGeometry("00000000030000000140590000000000004069000000000000",
      "POLYGON ((100 200, 100 200, 100 200, 100 200)");
  }
}