package software.amazon.emrcontainers.virtualcluster;

import com.amazonaws.AmazonWebServiceRequest;
import com.amazonaws.services.emrcontainers.model.CreateVirtualClusterRequest;
import com.amazonaws.services.emrcontainers.model.CreateVirtualClusterResult;
import com.amazonaws.services.emrcontainers.model.DescribeVirtualClusterResult;
import org.mockito.ArgumentMatchers;
import software.amazon.cloudformation.proxy.*;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import java.util.function.Function;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;

@ExtendWith(MockitoExtension.class)
public class CreateHandlerTest {

    @Mock
    private AmazonWebServicesClientProxy proxy;

    @Mock
    private Logger logger;

    private ResourceModel model;

    @BeforeEach
    public void setup() {
        proxy = mock(AmazonWebServicesClientProxy.class);
        logger = mock(Logger.class);
        model = ResourceModel.builder()
            .name("virtualClusterName")
            .containerProvider(ContainerProvider.builder()
                .id("eksClusterId")
                .type("eks")
                .info(ContainerInfo.builder().eksInfo(
                    EksInfo.builder()
                        .namespace("namespace")
                        .build())
                    .build())
                .build())
            .build();
    }

    @Test
    public void handleRequest_success() {
        final CreateHandler handler = new CreateHandler();

        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
                .desiredResourceState(model)
                .build();

        CreateVirtualClusterResult createVirtualClusterResult = new CreateVirtualClusterResult();
        createVirtualClusterResult.setId("virtualClusterId");
        createVirtualClusterResult.setName("name");
        createVirtualClusterResult.setArn("arn");
        doReturn(createVirtualClusterResult)
                .when(proxy)
                .injectCredentialsAndInvoke(any(CreateVirtualClusterRequest.class), ArgumentMatchers.<Function<CreateVirtualClusterRequest, CreateVirtualClusterResult>>any());

        final ProgressEvent<ResourceModel, CallbackContext> response
                = handler.handleRequest(proxy, request, null, logger);

        assertThat(response).isNotNull();
        assertThat(response.getStatus()).isEqualTo(OperationStatus.SUCCESS);
        assertThat(response.getCallbackContext()).isNull();
        assertThat(response.getCallbackDelaySeconds()).isEqualTo(0);
        assertThat(response.getResourceModels()).isNull();
        assertThat(response.getMessage()).isNull();
        assertThat(response.getErrorCode()).isNull();

        assertThat(response.getResourceModel().getId()).isEqualTo(createVirtualClusterResult.getId());
        assertThat(response.getResourceModel().getName()).isEqualTo(createVirtualClusterResult.getName());
        assertThat(response.getResourceModel().getArn()).isEqualTo(createVirtualClusterResult.getArn());
    }

    @Test
    public void arnProvidedInInput_requestFailed() {
        final CreateHandler handler = new CreateHandler();

        model.setArn("arn");
        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
            .desiredResourceState(model)
            .build();

        final ProgressEvent<ResourceModel, CallbackContext> response = handler.handleRequest(
            proxy, request, null, logger);

        assertThat(response.getErrorCode()).isEqualTo(HandlerErrorCode.InvalidRequest);
        assertThat(response.getMessage()).startsWith("Arn is a ReadOnly");
    }
}