/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
    
package sonia.scm.api.rest;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.junit.Test;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.io.IOException;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.util.Optional;

import static org.junit.Assert.*;

/**
 * Unit tests for {@link JSONContextResolver}.
 * 
 * @author Sebastian Sdorra
 */
public class JSONContextResolverTest {

  private final ObjectMapper mapper = new ObjectMapperProvider().get();

  /**
   * Tests json unmarshalling with unknown properties.
   * 
   * @throws IOException 
   */
  @Test
  public void testUnmarshalWithUnknownPropertery() throws IOException {
    SampleOne one = mapper.readValue("{\"title\": \"super title\", \"body\": \"super body\"}", SampleOne.class);
    assertEquals("super title", one.title);
  }
  
  private static class SampleOne {
    
    private String title;

    public void setTitle(String title) {
      this.title = title;
    }
    
  }
  
  /**
   * Tests json marshaling with JAXB annotations.
   * 
   * @throws JsonProcessingException 
   */
  @Test
  public void testMarshalWithJAXBAnnotations() throws JsonProcessingException {
    SampleTwo two = new SampleTwo();
    two.label = "super title";
    assertEquals("{\"title\":\"super title\"}", mapper.writeValueAsString(two));
  }
  
  /**
   * Tests json unmarshalling with JAXB annotations.
   * 
   * @throws JsonProcessingException 
   */
  @Test
  public void testUnmarshalWithJAXBAnnotations() throws IOException {
    SampleTwo two = mapper.readValue("{\"title\": \"super title\"}", SampleTwo.class);
    assertEquals("super title", two.label);
  }
  
  @XmlRootElement
  @XmlAccessorType(XmlAccessType.FIELD)
  private static class SampleTwo {
    
    @XmlElement(name = "title")
    private String label;
    
  }
  /**
   * Tests json marshaling with jackson annotations.
   * 
   * @throws JsonProcessingException 
   */
  @Test
  public void testMarshalWithJacksonAnnotations() throws JsonProcessingException {
    SampleThree two = new SampleThree();
    two.setLabel("super title");
    assertEquals("{\"title\":\"super title\"}", mapper.writeValueAsString(two));
  }
  
  /**
   * Tests json unmarshalling with jackson annotations.
   * 
   * @throws JsonProcessingException 
   */
  @Test
  public void testUnmarshalWithJacksonAnnotations() throws IOException {
    SampleThree three = mapper.readValue("{\"title\": \"super title\"}", SampleThree.class);
    assertEquals("super title", three.getLabel());
  }
  
  private static class SampleThree {
    
    @JsonProperty(value = "title")
    private String label;

    public void setLabel(String label) {
      this.label = label;
    }

    public String getLabel() {
      return label;
    }
    
  }

  @Test
  public void shouldWriteDate() throws JsonProcessingException {
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
    LocalDateTime dateTime = LocalDateTime.parse("1998-06-13 14:40", formatter);

    DateSample value = new DateSample(dateTime.toInstant(ZoneOffset.UTC));

    assertEquals("{\"date\":\"1998-06-13T14:40:00Z\"}", mapper.writeValueAsString(value));
  }

  @Data @AllArgsConstructor @NoArgsConstructor
  private static class DateSample {
    private Instant date;
  }

  @Test
  public void shouldNotWriteEmptyOptionals() throws JsonProcessingException {
    OptionalSample emptyValue = new OptionalSample(Optional.empty());
    OptionalSample presentValue = new OptionalSample(Optional.of("world"));

    assertEquals("{}", mapper.writeValueAsString(emptyValue));
    assertEquals("{\"value\":\"world\"}", mapper.writeValueAsString(presentValue));
  }

  @Test
  public void shouldReadEmptyOptionals() throws IOException {
    OptionalSample value = mapper.readValue("{}", OptionalSample.class);
    assertNotNull("Optional should not be null", value.getValue());
    assertFalse("Optional should be set as empty", value.getValue().isPresent());
  }

  @Test
  public void shouldReadNonEmptyOptionals() throws IOException {
    OptionalSample value = mapper.readValue("{\"value\":\"world\"}", OptionalSample.class);
    assertEquals("world", value.getValue().get());
  }

  @Data @AllArgsConstructor @NoArgsConstructor
  private static class OptionalSample {
    @JsonInclude(JsonInclude.Include.NON_EMPTY)
    private Optional<String> value;
  }
}
