package software.amazon.opensearchserverless.collection;

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.Mockito;
import org.mockito.junit.jupiter.MockitoExtension;
import software.amazon.awssdk.services.opensearchserverless.OpenSearchServerlessClient;
import software.amazon.awssdk.services.opensearchserverless.model.BatchGetCollectionRequest;
import software.amazon.awssdk.services.opensearchserverless.model.BatchGetCollectionResponse;
import software.amazon.awssdk.services.opensearchserverless.model.CollectionDetail;
import software.amazon.awssdk.services.opensearchserverless.model.CollectionStatus;
import software.amazon.awssdk.services.opensearchserverless.model.UpdateCollectionDetail;
import software.amazon.awssdk.services.opensearchserverless.model.UpdateCollectionRequest;
import software.amazon.awssdk.services.opensearchserverless.model.UpdateCollectionResponse;
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;

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

    static final String COLLECTION_ID = "irbh23msi1";
    static final String COLLECTION_NAME = "collection_name";
    static final String COLLECTION_ARN = "arn:aws:aoss:us-east-1:123456789012:collection/irbh23msi1";
    static final String COLLECTION_DESCRIPTION = "Collection description";
    static final String COLLECTION_DESCRIPTION2 = "Collection description updated";
    static final String COLLECTION_TYPE = "SEARCH";
    static final String COLLECTION_ENDPOINT = "irbh23msi1.us-east-1.aoss.amazonaws.com";
    static final String DASHBOARD_ENDPOINT = "irbh23msi1.us-east-1.aoss.amazonaws.com/_dashboards";
    static final long CREATED_DATE = 1234567;

    @Mock
    private AmazonWebServicesClientProxy proxy;

    @Mock
    private ProxyClient<OpenSearchServerlessClient> proxyClient;

    @Mock
    private OpenSearchServerlessClient openSearchServerlessClient;

    private UpdateHandler handler;

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

    @AfterEach
    public void tear_down(org.junit.jupiter.api.TestInfo testInfo) {
        if (!testInfo.getTags().contains("skipSdkInteraction")) {
            Mockito.verify(openSearchServerlessClient, Mockito.atLeastOnce()).serviceName();
            Mockito.verifyNoMoreInteractions(openSearchServerlessClient);
        }
    }

    @Test
    public void handleRequest_SimpleSuccess() {
        final ResourceModel expectedModel = ResourceModel.builder()
            .id(COLLECTION_ID)
            .name(COLLECTION_NAME)
            .type(COLLECTION_TYPE)
            .description(COLLECTION_DESCRIPTION2)
            .arn(COLLECTION_ARN)
            .collectionEndpoint(COLLECTION_ENDPOINT)
            .dashboardEndpoint(DASHBOARD_ENDPOINT)
            .build();

        final ResourceModel requestModel = ResourceModel.builder()
            .id(COLLECTION_ID)
            .description(COLLECTION_DESCRIPTION2)
            .build();

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

        final UpdateCollectionResponse updateCollectionResponse =
            UpdateCollectionResponse.builder()
                .updateCollectionDetail(UpdateCollectionDetail.builder().id(COLLECTION_ID).build())
                .build();
        Mockito.when(proxyClient.client().updateCollection(any(UpdateCollectionRequest.class)))
            .thenReturn(updateCollectionResponse);

        final BatchGetCollectionResponse batchGetCollectionResponse1 =
            BatchGetCollectionResponse.builder()
                .collectionDetails(
                    CollectionDetail.builder()
                        .id(COLLECTION_ID)
                        .status(CollectionStatus.ACTIVE)
                        .name(COLLECTION_NAME)
                        .type(COLLECTION_TYPE)
                        .description(COLLECTION_DESCRIPTION)
                        .arn(COLLECTION_ARN)
                        .collectionEndpoint(COLLECTION_ENDPOINT)
                        .dashboardEndpoint(DASHBOARD_ENDPOINT)
                        .createdDate(CREATED_DATE)
                        .build()
                ).build();
        final BatchGetCollectionResponse batchGetCollectionResponse2 =
            BatchGetCollectionResponse.builder()
                .collectionDetails(
                    CollectionDetail.builder()
                        .id(COLLECTION_ID)
                        .status(CollectionStatus.ACTIVE)
                        .name(COLLECTION_NAME)
                        .type(COLLECTION_TYPE)
                        .description(COLLECTION_DESCRIPTION2)
                        .arn(COLLECTION_ARN)
                        .collectionEndpoint(COLLECTION_ENDPOINT)
                        .dashboardEndpoint(DASHBOARD_ENDPOINT)
                        .createdDate(CREATED_DATE)
                        .build()
                ).build();
        Mockito.when(proxyClient.client().batchGetCollection(any(BatchGetCollectionRequest.class)))
            .thenReturn(batchGetCollectionResponse1, batchGetCollectionResponse2, batchGetCollectionResponse2);

        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()).isEqualTo(expectedModel);
        assertThat(response.getResourceModels()).isNull();
        assertThat(response.getMessage()).isNull();
        assertThat(response.getErrorCode()).isNull();

        Mockito.verify(proxyClient.client()).updateCollection(any(UpdateCollectionRequest.class));
    }

    @Test
    @org.junit.jupiter.api.Tag("skipSdkInteraction")
    public void handleRequest_WithoutId_Fail() {
        final ResourceModel desiredResourceModel = ResourceModel.builder().description(COLLECTION_DESCRIPTION2).build();
        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
            .desiredResourceState(desiredResourceModel)
            .build();
        final ProgressEvent<ResourceModel, CallbackContext> response = handler
            .handleRequest(proxy, request, new CallbackContext(), proxyClient, logger);

        assertThat(response).isNotNull();
        assertThat(response.getStatus()).isEqualTo(OperationStatus.FAILED);
        assertThat(response.getResourceModels()).isNull();
        assertThat(response.getErrorCode()).isEqualTo(HandlerErrorCode.InvalidRequest);
    }

    @Test
    @org.junit.jupiter.api.Tag("skipSdkInteraction")
    public void handleRequest_WithoutDescription_Fail() {
        final ResourceModel desiredResourceModel = ResourceModel.builder().id(COLLECTION_ID).build();
        final ResourceHandlerRequest<ResourceModel> request = ResourceHandlerRequest.<ResourceModel>builder()
            .desiredResourceState(desiredResourceModel)
            .build();
        final ProgressEvent<ResourceModel, CallbackContext> response = handler
            .handleRequest(proxy, request, new CallbackContext(), proxyClient, logger);

        assertThat(response).isNotNull();
        assertThat(response.getStatus()).isEqualTo(OperationStatus.FAILED);
        assertThat(response.getResourceModels()).isNull();
        assertThat(response.getErrorCode()).isEqualTo(HandlerErrorCode.InvalidRequest);
    }
}