/*
 *  Copyright 2014 TWO SIGMA OPEN SOURCE, LLC
 *
 *  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 com.twosigma.beaker.chart.serializer;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.ser.DefaultSerializerProvider;
import com.twosigma.beaker.chart.categoryplot.plotitem.CategoryLines;
import com.twosigma.beaker.chart.xychart.plotitem.StrokeType;
import org.assertj.core.api.Assertions;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import java.io.IOException;
import java.io.StringWriter;
import java.util.Arrays;

public class CategoryLinesSerializerTest {

  static ObjectMapper mapper;
  static CategoryLinesSerializer categoryLinesSerializer;
  JsonGenerator jgen;
  StringWriter sw;

  @BeforeClass
  public static void initClassStubData() {
    mapper = new ObjectMapper();
    categoryLinesSerializer = new CategoryLinesSerializer();
  }

  @Before
  public void initTestStubData() throws IOException {
    sw = new StringWriter();
    jgen = mapper.getJsonFactory().createJsonGenerator(sw);
  }

  @Test
  public void serializeWidthCategoryLines_resultJsonHasWidth() throws IOException {
    //when
    CategoryLines categoryLines = new CategoryLines();
    categoryLines.setWidth(11f);
    categoryLinesSerializer.serialize(categoryLines, jgen, new DefaultSerializerProvider.Impl());
    jgen.flush();
    //then
    JsonNode actualObj = mapper.readTree(sw.toString());
    Assertions.assertThat(actualObj.has("width")).isTrue();
    Assertions.assertThat(actualObj.get("width").asInt()).isEqualTo(11);
  }

  @Test
  public void serializeStrokeTypeStems_resultJsonHasStyle() throws IOException {
    //when
    CategoryLines categoryLines = new CategoryLines();
    categoryLines.setStyle(StrokeType.SOLID);
    categoryLinesSerializer.serialize(categoryLines, jgen, new DefaultSerializerProvider.Impl());
    jgen.flush();
    //then
    JsonNode actualObj = mapper.readTree(sw.toString());
    Assertions.assertThat(actualObj.has("style")).isTrue();
    Assertions.assertThat(actualObj.get("style").asText()).isEqualTo("SOLID");
  }

  @Test
  public void serializeStrokeTypeListStems_resultJsonHasStyles() throws IOException {
    //when
    CategoryLines categoryLines = new CategoryLines();
    categoryLines.setStyle(Arrays.asList(StrokeType.SOLID, StrokeType.DASHDOT));
    categoryLinesSerializer.serialize(categoryLines, jgen, new DefaultSerializerProvider.Impl());
    jgen.flush();
    //then
    JsonNode actualObj = mapper.readTree(sw.toString());
    Assertions.assertThat(actualObj.has("styles")).isTrue();
    ArrayNode arrayNode = (ArrayNode) actualObj.get("styles");
    Assertions.assertThat(arrayNode.get(1).asText()).isEqualTo("DASHDOT");
  }

  @Test
  public void serializeInterpolationCategoryLines_resultJsonHasInterpolation() throws IOException {
    //when
    CategoryLines categoryLines = new CategoryLines();
    categoryLines.setInterpolation(1);
    categoryLinesSerializer.serialize(categoryLines, jgen, new DefaultSerializerProvider.Impl());
    jgen.flush();
    //then
    JsonNode actualObj = mapper.readTree(sw.toString());
    Assertions.assertThat(actualObj.has("interpolation")).isTrue();
    Assertions.assertThat(actualObj.get("interpolation").asInt()).isEqualTo(1);
  }
}