package software.amazon.redshift.clusterparametergroup;

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 software.amazon.awssdk.services.redshift.RedshiftClient;
import software.amazon.awssdk.services.redshift.model.ClusterParameterGroupNotFoundException;
import software.amazon.awssdk.services.redshift.model.DeleteClusterParameterGroupRequest;
import software.amazon.awssdk.services.redshift.model.DeleteClusterParameterGroupResponse;
import software.amazon.cloudformation.proxy.AmazonWebServicesClientProxy;
import software.amazon.cloudformation.proxy.HandlerErrorCode;
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 java.time.Duration;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static software.amazon.redshift.clusterparametergroup.TestUtils.AWS_REGION;
import static software.amazon.redshift.clusterparametergroup.TestUtils.COMPLETE_MODEL;
import static software.amazon.redshift.clusterparametergroup.TestUtils.DESIRED_RESOURCE_TAGS;

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

    @Mock
    RedshiftClient sdkClient;
    @Mock
    private AmazonWebServicesClientProxy proxy;
    @Mock
    private ProxyClient<RedshiftClient> proxyClient;
    private DeleteHandler handler;

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

    @Test
    public void handleRequest_SimpleSuccess() {
        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
                .desiredResourceState(COMPLETE_MODEL)
                .region(AWS_REGION)
                .desiredResourceTags(DESIRED_RESOURCE_TAGS)
                .logicalResourceIdentifier("logicalId")
                .clientRequestToken("token")
                .build();

        when(proxyClient.client().deleteClusterParameterGroup(any(DeleteClusterParameterGroupRequest.class)))
                .thenReturn(DeleteClusterParameterGroupResponse.builder().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_ParameterGroupNotFound() {
        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
                .desiredResourceState(COMPLETE_MODEL)
                .region(AWS_REGION)
                .desiredResourceTags(DESIRED_RESOURCE_TAGS)
                .logicalResourceIdentifier("logicalId")
                .clientRequestToken("token")
                .build();

        when(proxyClient.client().deleteClusterParameterGroup(any(DeleteClusterParameterGroupRequest.class))).thenThrow(
                ClusterParameterGroupNotFoundException.class);

        final ProgressEvent<ResourceModel, CallbackContext> response = handler.handleRequest(proxy, request, new CallbackContext(), proxyClient, logger);
        assertThat(response).isNotNull();
        assertThat(response.getStatus()).isEqualTo(OperationStatus.FAILED);
        assertThat(response.getCallbackDelaySeconds()).isEqualTo(0);
        assertThat(response.getResourceModels()).isNull();
        assertThat(response.getMessage()).isNull();
        assertThat(response.getErrorCode()).isEqualTo(HandlerErrorCode.NotFound);
    }
}