package jnpf.fileStorage;

import org.dromara.x.file.storage.core.FileStorageService;
import org.dromara.x.file.storage.core.platform.FileStorage;
import org.dromara.x.file.storage.core.platform.MinioFileStorage;
import org.junit.Test;

import java.util.Arrays;
import java.util.Collections;
import java.util.concurrent.CopyOnWriteArrayList;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

public class SeaweedFsStorageRegistrarTest {

    @Test
    public void registersDedicatedAndCommonSeaweedFsPlatforms() {
        SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
        properties.setDefaultPlatform("seaweedfs-common-1");
        properties.setSeaweedfs(Arrays.asList(
                enabledConfig("seaweedfs-1", "jnpf-dms"),
                enabledConfig("seaweedfs-common-1", "jnpf-common")));
        FileStorageService service = serviceWithEmptyStorageList();
        SeaweedFsBucketVerifier verifier = mock(SeaweedFsBucketVerifier.class);
        SeaweedFsStorageRegistrar registrar = new SeaweedFsStorageRegistrar(properties, service, verifier);

        registrar.register();

        assertEquals(2, service.getFileStorageList().size());
        assertEquals("seaweedfs-1", service.getFileStorageList().get(0).getPlatform());
        assertEquals("seaweedfs-common-1", service.getFileStorageList().get(1).getPlatform());
        assertTrue(service.getFileStorageList().get(0) instanceof MinioFileStorage);
        verify(verifier, times(2)).verify(any(MinioFileStorage.class));
        registrar.unregister();
    }

    @Test
    public void ignoresDisabledSeaweedFs() {
        SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
        properties.setDefaultPlatform("local-plus-1");
        SeaweedFsStorageProperties.SeaweedFsConfig config = enabledConfig("seaweedfs-1", "jnpf-dms");
        config.setEnableStorage(false);
        properties.setSeaweedfs(Collections.singletonList(config));
        FileStorageService service = serviceWithPlatforms("local-plus-1");
        SeaweedFsBucketVerifier verifier = mock(SeaweedFsBucketVerifier.class);

        new SeaweedFsStorageRegistrar(properties, service, verifier).register();

        assertEquals(1, service.getFileStorageList().size());
        verify(verifier, never()).verify(any(MinioFileStorage.class));
    }

    @Test(expected = IllegalStateException.class)
    public void rejectsMinioPlatformNameInSeaweedFsGroup() {
        SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
        properties.setDefaultPlatform("local-plus-1");
        properties.setSeaweedfs(Collections.singletonList(enabledConfig("minio-1", "bucket")));

        new SeaweedFsStorageRegistrar(properties, serviceWithPlatforms("local-plus-1"),
                mock(SeaweedFsBucketVerifier.class)).register();
    }

    @Test
    public void rejectsDisabledDefaultPlatform() {
        SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
        properties.setDefaultPlatform("seaweedfs-common-1");
        SeaweedFsStorageProperties.SeaweedFsConfig config =
                enabledConfig("seaweedfs-common-1", "jnpf-common");
        config.setEnableStorage(false);
        properties.setSeaweedfs(Collections.singletonList(config));

        IllegalStateException exception = assertThrows(IllegalStateException.class,
                () -> new SeaweedFsStorageRegistrar(properties, serviceWithEmptyStorageList(),
                        mock(SeaweedFsBucketVerifier.class)).register());

        assertTrue(exception.getMessage().contains("seaweedfs-common-1"));
    }

    @Test
    public void rejectsMissingRequiredFieldsBeforeConnecting() {
        SeaweedFsStorageProperties.SeaweedFsConfig missingAccessKey =
                enabledConfig("seaweedfs-common-1", "jnpf-common");
        missingAccessKey.setAccessKey("");
        SeaweedFsStorageProperties.SeaweedFsConfig missingSecretKey =
                enabledConfig("seaweedfs-common-1", "jnpf-common");
        missingSecretKey.setSecretKey("");
        SeaweedFsStorageProperties.SeaweedFsConfig missingEndpoint =
                enabledConfig("seaweedfs-common-1", "jnpf-common");
        missingEndpoint.setEndPoint("");
        SeaweedFsStorageProperties.SeaweedFsConfig missingBucket =
                enabledConfig("seaweedfs-common-1", "jnpf-common");
        missingBucket.setBucketName("");

        for (SeaweedFsStorageProperties.SeaweedFsConfig config : Arrays.asList(
                missingAccessKey, missingSecretKey, missingEndpoint, missingBucket)) {
            SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
            properties.setDefaultPlatform("seaweedfs-common-1");
            properties.setSeaweedfs(Collections.singletonList(config));
            SeaweedFsBucketVerifier verifier = mock(SeaweedFsBucketVerifier.class);

            assertThrows(IllegalStateException.class,
                    () -> new SeaweedFsStorageRegistrar(properties, serviceWithEmptyStorageList(),
                            verifier).register());

            verify(verifier, never()).verify(any(MinioFileStorage.class));
        }
    }

    @Test
    public void rejectsDuplicatePlatformBeforeConnecting() {
        SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
        properties.setDefaultPlatform("seaweedfs-common-1");
        properties.setSeaweedfs(Arrays.asList(
                enabledConfig("seaweedfs-common-1", "jnpf-common"),
                enabledConfig("seaweedfs-common-1", "jnpf-other")));
        SeaweedFsBucketVerifier verifier = mock(SeaweedFsBucketVerifier.class);

        IllegalStateException exception = assertThrows(IllegalStateException.class,
                () -> new SeaweedFsStorageRegistrar(properties, serviceWithEmptyStorageList(),
                        verifier).register());

        assertTrue(exception.getMessage().contains("seaweedfs-common-1"));
        verify(verifier, never()).verify(any(MinioFileStorage.class));
    }

    @Test
    public void removesPartiallyRegisteredPlatformsWhenBucketCheckFails() {
        SeaweedFsStorageProperties properties = new SeaweedFsStorageProperties();
        properties.setDefaultPlatform("seaweedfs-common-1");
        properties.setSeaweedfs(Collections.singletonList(
                enabledConfig("seaweedfs-common-1", "jnpf-common")));
        FileStorageService service = serviceWithEmptyStorageList();
        SeaweedFsBucketVerifier verifier = mock(SeaweedFsBucketVerifier.class);
        doThrow(new IllegalStateException("bucket unavailable"))
                .when(verifier).verify(any(MinioFileStorage.class));

        assertThrows(IllegalStateException.class,
                () -> new SeaweedFsStorageRegistrar(properties, service, verifier).register());

        assertTrue(service.getFileStorageList().isEmpty());
    }

    private FileStorageService serviceWithEmptyStorageList() {
        FileStorageService service = new FileStorageService();
        service.setFileStorageList(new CopyOnWriteArrayList<>());
        return service;
    }

    private FileStorageService serviceWithPlatforms(String... platforms) {
        FileStorageService service = serviceWithEmptyStorageList();
        for (String platform : platforms) {
            FileStorage storage = mock(FileStorage.class);
            when(storage.getPlatform()).thenReturn(platform);
            service.getFileStorageList().add(storage);
        }
        return service;
    }

    private SeaweedFsStorageProperties.SeaweedFsConfig enabledConfig(String platform, String bucket) {
        SeaweedFsStorageProperties.SeaweedFsConfig config = new SeaweedFsStorageProperties.SeaweedFsConfig();
        config.setEnableStorage(true);
        config.setPlatform(platform);
        config.setAccessKey("access");
        config.setSecretKey("secret");
        config.setEndPoint("http://127.0.0.1:8333/");
        config.setBucketName(bucket);
        config.setDomain("");
        config.setBasePath("files/");
        return config;
    }
}