/*
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */

package io.dapr.actors.client;

import io.dapr.actors.ActorId;
import io.dapr.serializer.DefaultObjectSerializer;
import io.dapr.serializer.DaprObjectSerializer;
import org.junit.Assert;
import org.junit.Test;
import org.mockito.Mockito;
import reactor.core.publisher.Mono;

import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

public class ActorProxyImplTest {

  @Test()
  public void constructorActorProxyTest() {
    final DaprClient daprClient = mock(DaprClient.class);
    final DaprObjectSerializer serializer = mock(DaprObjectSerializer.class);
    final ActorProxyImpl actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        serializer,
        daprClient);
    Assert.assertEquals(actorProxy.getActorId().toString(), "100");
    Assert.assertEquals(actorProxy.getActorType(), "myActorType");
  }

  @Test()
  public void invokeActorMethodWithoutDataWithReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    Mono<byte[]> daprResponse = Mono.just(
            "{\n\t\t\"propertyA\": \"valueA\",\n\t\t\"propertyB\": \"valueB\"\n\t}".getBytes());

    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNull()))
            .thenReturn(daprResponse);

    final ActorProxy actorProxy = new ActorProxyImpl(
            "myActorType",
            new ActorId("100"),
            new DefaultObjectSerializer(),
            daprClient);

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", MyData.class);
    MyData myData = result.block();
    Assert.assertNotNull(myData);
    Assert.assertEquals("valueA", myData.getPropertyA());
    Assert.assertEquals("valueB", myData.getPropertyB());// propertyB=null
  }

  @Test()
  public void invokeActorMethodWithoutDataWithReturnTypeViaReflection() throws NoSuchMethodException {
    final DaprClient daprClient = mock(DaprClient.class);
    Mono<byte[]> daprResponse = Mono.just(
            "{\n\t\t\"propertyA\": \"valueA\",\n\t\t\"propertyB\": \"valueB\"\n\t}".getBytes());

    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNull()))
            .thenReturn(daprResponse);

    final ActorProxyImpl actorProxy = new ActorProxyImpl(
            "myActorType",
            new ActorId("100"),
            new DefaultObjectSerializer(),
            daprClient);

    MyData myData = (MyData) actorProxy.invoke(actorProxy, Actor.class.getMethod("getData"), null);
    Assert.assertNotNull(myData);
    Assert.assertEquals("valueA", myData.getPropertyA());
    Assert.assertEquals("valueB", myData.getPropertyB());// propertyB=null
  }

  @Test()
  public void invokeActorMethodWithoutDataWithEmptyReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNull()))
        .thenReturn(Mono.just("".getBytes()));

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", MyData.class);
    MyData myData = result.block();
    Assert.assertNull(myData);
  }

  @Test(expected = RuntimeException.class)
  public void invokeActorMethodWithIncorrectReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNull()))
        .thenReturn(Mono.just("{test}".getBytes()));

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", MyData.class);

    result.doOnSuccess(x ->
        Assert.fail("Not exception was throw"))
        .doOnError(Throwable::printStackTrace
        ).block();


  }

  @Test()
  public void invokeActorMethodSavingDataWithReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNotNull()))
        .thenReturn(
          Mono.just("{\n\t\t\"propertyA\": \"valueA\",\n\t\t\"propertyB\": \"valueB\"\n\t}".getBytes()));

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    MyData saveData = new MyData();
    saveData.setPropertyA("valueA");
    saveData.setPropertyB("valueB");

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", saveData, MyData.class);
    MyData myData = result.block();
    Assert.assertNotNull(myData);
    Assert.assertEquals("valueA", myData.getPropertyA());
    Assert.assertEquals("valueB", myData.getPropertyB());//propertyB=null

  }

  @Test(expected = RuntimeException.class)
  public void invokeActorMethodSavingDataWithIncorrectReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNotNull()))
        .thenReturn(Mono.just("{test}".getBytes()));

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    MyData saveData = new MyData();
    saveData.setPropertyA("valueA");
    saveData.setPropertyB("valueB");

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", saveData, MyData.class);
    result.doOnSuccess(x ->
        Assert.fail("Not exception was throw"))
        .doOnError(Throwable::printStackTrace
        ).block();

  }

  @Test()
  public void invokeActorMethodSavingDataWithEmptyReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNotNull()))
        .thenReturn(Mono.just("".getBytes()));

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    MyData saveData = new MyData();
    saveData.setPropertyA("valueA");
    saveData.setPropertyB("valueB");

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", saveData, MyData.class);
    MyData myData = result.block();
    Assert.assertNull(myData);
  }


  @Test(expected = RuntimeException.class)
  public void invokeActorMethodSavingDataWithIncorrectInputType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNotNull()))
        .thenReturn(Mono.just("{test}".getBytes()));

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    MyData saveData = new MyData();
    saveData.setPropertyA("valueA");
    saveData.setPropertyB("valueB");
    saveData.setMyData(saveData);

    Mono<MyData> result = actorProxy.invokeActorMethod("getData", saveData, MyData.class);
    result.doOnSuccess(x ->
        Assert.fail("Not exception was throw"))
        .doOnError(Throwable::printStackTrace
        ).block();

  }

  @Test()
  public void invokeActorMethodWithDataWithVoidReturnType() {
    MyData saveData = new MyData();
    saveData.setPropertyA("valueA");
    saveData.setPropertyB("valueB");

    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNotNull()))
        .thenReturn(Mono.empty());

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    Mono<Void> result = actorProxy.invokeActorMethod("getData", saveData);
    Void emptyResponse = result.block();
    Assert.assertNull(emptyResponse);
  }


  @Test(expected = RuntimeException.class)
  public void invokeActorMethodWithDataWithVoidIncorrectInputType() {
    MyData saveData = new MyData();
    saveData.setPropertyA("valueA");
    saveData.setPropertyB("valueB");
    saveData.setMyData(saveData);

    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNotNull()))
        .thenReturn(Mono.empty());

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    Mono<Void> result = actorProxy.invokeActorMethod("getData", saveData);
    Void emptyResponse = result.doOnError(Throwable::printStackTrace).block();
    Assert.assertNull(emptyResponse);
  }

  @Test()
  public void invokeActorMethodWithoutDataWithVoidReturnType() {
    final DaprClient daprClient = mock(DaprClient.class);
    when(daprClient.invokeActorMethod(anyString(), anyString(), anyString(), Mockito.isNull()))
        .thenReturn(Mono.empty());

    final ActorProxy actorProxy = new ActorProxyImpl(
        "myActorType",
        new ActorId("100"),
        new DefaultObjectSerializer(),
        daprClient);

    Mono<Void> result = actorProxy.invokeActorMethod("getData");
    Void emptyResponse = result.block();
    Assert.assertNull(emptyResponse);
  }

  interface Actor {
    MyData getData();
  }

  static class MyData {

    /// Gets or sets the value for PropertyA.
    private String propertyA;

    /// Gets or sets the value for PropertyB.
    private String propertyB;

    private MyData myData;


    public String getPropertyB() {
      return propertyB;
    }

    public void setPropertyB(String propertyB) {
      this.propertyB = propertyB;
    }

    public String getPropertyA() {
      return propertyA;
    }

    public void setPropertyA(String propertyA) {
      this.propertyA = propertyA;
    }

    @Override
    public String toString() {
      return "MyData{" +
          "propertyA='" + propertyA + '\'' +
          ", propertyB='" + propertyB + '\'' +
          '}';
    }

    public MyData getMyData() {
      return myData;
    }

    public void setMyData(MyData myData) {
      this.myData = myData;
    }
  }

}