/*
 * 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 tech.tablesaw.index;

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import tech.tablesaw.api.ColumnType;
import tech.tablesaw.api.Table;
import tech.tablesaw.columns.numbers.NumberPredicates;
import tech.tablesaw.io.csv.CsvReadOptions;
import tech.tablesaw.selection.Selection;

/** */
public class DoubleIndexTest {

  private DoubleIndex index;
  private Table table;

  @BeforeEach
  public void setUp() throws Exception {

    table =
        Table.read()
            .csv(
                CsvReadOptions.builder("../data/bus_stop_test.csv")
                    // explicitly set column type, due to CsvReader#detectType returns
                    // ColumnType.FLOAT
                    // for 'stop_lat' and 'stop_lon' columns
                    .columnTypes(
                        new ColumnType[] {
                          ColumnType.DOUBLE,
                          ColumnType.STRING,
                          ColumnType.STRING,
                          ColumnType.DOUBLE,
                          ColumnType.DOUBLE
                        }));
    index = new DoubleIndex(table.doubleColumn("stop_lat"));
  }

  @Test
  public void testGet() {
    Selection fromCol = table.numberColumn("stop_lat").eval(NumberPredicates.isEqualTo(30.330425));
    Selection fromIdx = index.get(30.330425);
    assertEquals(fromCol, fromIdx);
  }

  @Test
  public void testGTE() {
    Selection fromCol =
        table.numberColumn("stop_lat").eval(NumberPredicates.isGreaterThanOrEqualTo(30.330425));
    Selection fromIdx = index.atLeast(30.330425);
    assertEquals(fromCol, fromIdx);
  }

  @Test
  public void testLTE() {
    Selection fromCol =
        table.numberColumn("stop_lat").eval(NumberPredicates.isLessThanOrEqualTo(30.330425));
    Selection fromIdx = index.atMost(30.330425);
    assertEquals(fromCol, fromIdx);
  }

  @Test
  public void testLT() {
    Selection fromCol = table.numberColumn("stop_lat").eval(NumberPredicates.isLessThan(30.330425));
    Selection fromIdx = index.lessThan(30.330425);
    assertEquals(fromCol, fromIdx);
  }

  @Test
  public void testGT() {
    Selection fromCol =
        table.numberColumn("stop_lat").eval(NumberPredicates.isGreaterThan(30.330425));
    Selection fromIdx = index.greaterThan(30.330425);
    assertEquals(fromCol, fromIdx);
  }
}
