package software.amazon.kendra.featuredresultsset;

import java.time.Duration;
import software.amazon.awssdk.awscore.exception.AwsServiceException;
import software.amazon.awssdk.core.SdkClient;
import software.amazon.awssdk.services.kendra.KendraClient;
import software.amazon.awssdk.services.kendra.model.BatchDeleteFeaturedResultsSetRequest;
import software.amazon.awssdk.services.kendra.model.BatchDeleteFeaturedResultsSetResponse;
import software.amazon.awssdk.services.kendra.model.DescribeFeaturedResultsSetRequest;
import software.amazon.awssdk.services.kendra.model.DescribeFeaturedResultsSetResponse;
import software.amazon.awssdk.services.kendra.model.ResourceNotFoundException;
import software.amazon.awssdk.services.kendra.model.ValidationException;
import software.amazon.cloudformation.exceptions.CfnGeneralServiceException;
import software.amazon.cloudformation.exceptions.CfnInvalidRequestException;
import software.amazon.cloudformation.exceptions.CfnNotFoundException;
import software.amazon.cloudformation.proxy.AmazonWebServicesClientProxy;
import software.amazon.cloudformation.proxy.OperationStatus;
import software.amazon.cloudformation.proxy.ProgressEvent;
import software.amazon.cloudformation.proxy.ProxyClient;
import software.amazon.cloudformation.proxy.ResourceHandlerRequest;
import org.junit.jupiter.api.AfterEach;
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 static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

@ExtendWith(MockitoExtension.class)
public class DeleteHandlerTest extends AbstractTestBase {

    @Mock
    private AmazonWebServicesClientProxy proxy;

    @Mock
    private ProxyClient<KendraClient> proxyClient;

    @Mock
    KendraClient kendraClient;

    @BeforeEach
    public void setup() {
        proxy = new AmazonWebServicesClientProxy(logger, MOCK_CREDENTIALS, () -> Duration.ofSeconds(600).toMillis());
        kendraClient = mock(KendraClient.class);
        proxyClient = MOCK_PROXY(proxy, kendraClient);
    }

    @AfterEach
    public void tear_down() {
        verify(kendraClient, atLeastOnce()).serviceName();
        verifyNoMoreInteractions(kendraClient);
    }

    @Test
    public void handleRequest_SimpleSuccess() {
        final DeleteHandler handler = new DeleteHandler();
        String indexId = "indexId";
        String frsId = "frsId";
        String frsName = "frsName";

        final ResourceModel model = ResourceModel.builder()
            .indexId(indexId)
            .featuredResultsSetId(frsId)
            .featuredResultsSetName(frsName)
            .build();

        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
            .desiredResourceState(model)
            .build();
        when(proxyClient.client().batchDeleteFeaturedResultsSet(any(
            BatchDeleteFeaturedResultsSetRequest.class))).thenReturn(
            BatchDeleteFeaturedResultsSetResponse.builder().build());

        when(proxyClient.client().describeFeaturedResultsSet(any(DescribeFeaturedResultsSetRequest.class)))
            .thenReturn(DescribeFeaturedResultsSetResponse.builder()
                .featuredResultsSetName(frsName)
                .featuredResultsSetId(frsId)
                .build());

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

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

    @Test
    public void handleRequest_ServiceException() {
        final DeleteHandler handler = new DeleteHandler();
        String frsId = "frsId";
        String indexId = "indexId";
        String frsName = "frsName";
        final ResourceModel model = ResourceModel.builder()
            .indexId(indexId)
            .featuredResultsSetId(frsId)
            .featuredResultsSetName(frsName)
            .build();

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

        when(proxyClient.client().batchDeleteFeaturedResultsSet(any(BatchDeleteFeaturedResultsSetRequest.class)))
            .thenThrow(AwsServiceException.builder().build());

        when(proxyClient.client().describeFeaturedResultsSet(any(DescribeFeaturedResultsSetRequest.class)))
            .thenReturn(DescribeFeaturedResultsSetResponse.builder()
                .featuredResultsSetName(frsName)
                .build());

        assertThrows(CfnGeneralServiceException.class, () -> {
            handler.handleRequest(proxy, request, new CallbackContext(), proxyClient, logger);
        });
    }

    @Test
    public void handleRequest_ValidationException() {
        final DeleteHandler handler = new DeleteHandler();
        String frsId = "frsId";
        String indexId = "indexId";
        String frsName = "frsName";
        final ResourceModel model = ResourceModel.builder()
            .indexId(indexId)
            .featuredResultsSetId(frsId)
            .featuredResultsSetName(frsName)
            .build();

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

        when(proxyClient.client().batchDeleteFeaturedResultsSet(any(BatchDeleteFeaturedResultsSetRequest.class)))
            .thenThrow(ValidationException.builder().build());

        when(proxyClient.client().describeFeaturedResultsSet(any(DescribeFeaturedResultsSetRequest.class)))
            .thenReturn(DescribeFeaturedResultsSetResponse.builder()
                .featuredResultsSetName(frsName)
                .build());

        assertThrows(CfnInvalidRequestException.class, () -> {
            handler.handleRequest(proxy, request, new CallbackContext(), proxyClient, logger);
        });
    }

    @Test
    public void handleRequest_ResourceNotFoundException() {
        final DeleteHandler handler = new DeleteHandler();
        String frsId = "frsId";
        String indexId = "indexId";
        String frsName = "frsName";
        final ResourceModel model = ResourceModel.builder()
            .indexId(indexId)
            .featuredResultsSetId(frsId)
            .featuredResultsSetName(frsName)
            .build();

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

        when(proxyClient.client().batchDeleteFeaturedResultsSet(any(BatchDeleteFeaturedResultsSetRequest.class)))
            .thenThrow(ResourceNotFoundException.builder().build());

        when(proxyClient.client().describeFeaturedResultsSet(any(DescribeFeaturedResultsSetRequest.class)))
            .thenReturn(DescribeFeaturedResultsSetResponse.builder()
                .featuredResultsSetName(frsName)
                .build());

        assertThrows(CfnNotFoundException.class, () -> {
            handler.handleRequest(proxy, request, new CallbackContext(), proxyClient, logger);
        });
    }
}