package org.legrog.web.publisher;

import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.platform.runner.JUnitPlatform;
import org.junit.runner.RunWith;
import org.legrog.entities.*;
import org.legrog.test.MockitoExtension;
import org.legrog.web.xyz.SharedService;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.*;

/**
 * Class testing PublisherServiceDefault
 */
@RunWith(JUnitPlatform.class)
@ExtendWith(MockitoExtension.class)
@DisplayName("Service layer for all publisher-related data")
public class PublisherServiceDefaultTest {
    Logger logger = LoggerFactory.getLogger(getClass());

    PublisherServiceDefault publisherServiceDefault;
    PublisherServiceDefault publisherServiceDefaultSpy;

    PublisherVersion publisherVersion;
    PublisherVersion publisherVersion1;
    Publisher publisher;
    PublisherRepository publisherRepository;

    @Mock
    PublisherVersion publisherVersionMock;

    @Captor
    ArgumentCaptor<IndexedPublisher> indexedPublisherArgumentCaptor;

    @Captor
    ArgumentCaptor<List <Publisher>> publishersArgumentCaptor;

    @BeforeEach
    public void setUp(@Mock PublisherRepository publisherRepository,
                      @Mock PublisherVersionRepository publisherVersionRepository,
                      @Mock PublisherActionRepository publisherActionRepository,
                      @Mock PublisherSearchRepository publisherSearchRepository,
                      @Mock SharedService sharedService) throws Exception {
        publisherServiceDefault = Mockito.spy(new PublisherServiceDefault(publisherRepository,
                publisherVersionRepository, publisherActionRepository, publisherSearchRepository, sharedService)
        {

            public List<IndexedPublisher> convertPublishersIntoIndexedPublishers(List<Publisher> publishers) {
                return new ArrayList<>();
            }
        }
        );
        publisherServiceDefaultSpy = Mockito.spy(publisherServiceDefault);
        publisherVersion = new PublisherVersion();
        publisherVersion1 = new PublisherVersion();
        this.publisherRepository = publisherRepository;
    }

    @Nested
    @DisplayName("addNewPublisher method")
    class AddNewPublisherTests {

        @DisplayName("When a new publisher is added, both Publisher and PublisherVersion should be saved in the right state")
        @Test
        public void testAddNewPublisher(@Mock PublisherVersionRepository publisherVersionRepository) {
            publisherServiceDefault.addNewPublisher(publisherVersion);
            publisher = publisherVersion.getPublisher();
            assertThat(publisher.getVersions()).containsExactly(publisherVersion);
            assertThat(publisherVersion.getPublisher()).isEqualTo(publisher);
            verify(publisherRepository).save(publisher);
            verify(publisherVersionRepository).save(publisherVersion);
        }

    }

    @Nested
    @DisplayName("addVersionToPublisher method")
    class AddVersionToPublisherTests {

        @DisplayName("When a new version of a publisher is added, setting it up, attaching it to publisher and saving both")
        @Test
        public void testAddVersionToPublisher(@Mock PublisherRepository publisherRepository,
                                              @Mock PublisherVersionRepository publisherVersionRepository) {
            publisherServiceDefault.addNewPublisher(publisherVersion);
            publisher = publisherVersion.getPublisher();
            publisherServiceDefault.addVersionToPublisher(publisher, publisherVersion1);
            assertThat(publisherVersion1.getPublisher()).isEqualTo(publisher);
            assertThat(publisher.getVersions()).contains(publisherVersion, publisherVersion1);
            verify(publisherRepository, times(2)).save(publisher);
            verify(publisherVersionRepository).save(publisherVersion1);
        }

    }

    @Nested
    @DisplayName("addVersionToPublisher method")
    class ValidatePublisherVersionTests {

        @DisplayName("When a PublisherVersion is validated, it should be the right one")
        @Test
        public void testValidateVersionRight() {
            Set<PublisherVersion> publisherVersions;

            publisher = new Publisher();
            publisherVersion = new PublisherVersion();
            publisherVersions = new HashSet<>();
            publisherVersions.add(publisherVersion);
            publisherVersions.add(publisherVersionMock);
            publisher.setVersions(publisherVersions);

            when(publisherVersionMock.getPublisher()).thenReturn(publisher);
            publisherServiceDefault.validatePublisherVersion(publisherVersionMock);
            assertThat(publisher.getValidatedVersion()).isEqualTo(publisherVersionMock);
        }

        @DisplayName("When a publisherVersion is validated, the indexed IndexedPublisher should have all attributes right")
        @Test
        public void testValidateIndexPublisher(@Mock PublisherSearchRepository publisherSearchRepository) {

            publisher = new Publisher();
            publisher.setPublisherId(111);

            when(publisherVersionMock.getPublisher()).thenReturn(publisher);
            when(publisherVersionMock.getPublisherName()).thenReturn("nom");
            when(publisherVersionMock.getPublisherHistory()).thenReturn("histoire");
            publisherServiceDefault.validatePublisherVersion(publisherVersionMock);
            try {
                Mockito.verify(publisherSearchRepository).save(indexedPublisherArgumentCaptor.capture());
            } catch (IndexingException e) {
                logger.error("IndexingException {}", e);
            }
            IndexedPublisher indexedPublisher = indexedPublisherArgumentCaptor.getValue();
            assertThat(indexedPublisher.getPublisherId()).isEqualTo(111);
            assertThat(indexedPublisher.getPublisherName()).isEqualTo("nom");
            assertThat(indexedPublisher.getPublisherHistory()).isEqualTo("histoire");
        }

        @DisplayName("When a validate creates a PublisherAction it should be saved and have all attributes right")
        @Test
        public void testValidateCreateAction(@Mock PublisherActionRepository publisherActionRepository) {
            PublisherAction publisherAction;
            ActionType actionType = ActionType.VALIDATE;

            publisher = new Publisher();

            when(publisherVersionMock.getPublisher()).thenReturn(publisher);
            publisherAction = publisherServiceDefault.validatePublisherVersion(publisherVersionMock);
            verify(publisherActionRepository).save(publisherAction);
            assertThat(publisherAction.getPublisherVersion()).isEqualTo(publisherVersionMock);
            assertThat(publisherAction.getPublisher()).isEqualTo(publisher);
            assertThat(publisherAction.getPublisher().getValidatedVersion()).isEqualTo(publisherVersionMock);
            assertThat(publisherAction.getActionType()).isEqualTo(actionType);
        }

    }

    @Nested
    @DisplayName("search method")
    class SearchTests {

        @DisplayName("When called, should delegate search to PublisherSearchRepository")
        @Test
        public void testDelegateSearchToPublisherSearchRepository(@Mock PublisherSearchRepository publisherSearchRepository) throws SearchingException {
            publisherServiceDefault.search("3");
            Mockito.verify(publisherSearchRepository).search("3");

        }

        @DisplayName("When getting IndexedPublishers from search, should convertIndexedAccountsIntoAccounts them")
        @Test
        public void testConvertReturnedIndexedPublishers(@Mock PublisherSearchRepository publisherSearchRepository) throws SearchingException {
            List<IndexedPublisher> indexedPublishers = new ArrayList<>();

            when(publisherSearchRepository.search("4")).thenReturn(indexedPublishers);
            publisherServiceDefault.search("4");
            verify(publisherServiceDefault, times(1)).convertIndexedPublishersIntoPublisherVersions(indexedPublishers);
        }

        @DisplayName("When called, should return the PublisherVersions it gets from convertIndexedAccountsIntoAccounts")
        @Test
        public void testReturnFromConvert(@Mock PublisherSearchRepository publisherSearchRepository) throws SearchingException {
            List<PublisherVersion> publisherVersions = new ArrayList<>();
            List<IndexedPublisher> indexedPublishers = new ArrayList<>();
            Mockito.doReturn(publisherVersions).when(publisherServiceDefault).convertIndexedPublishersIntoPublisherVersions(indexedPublishers);
            when(publisherSearchRepository.search("5")).thenReturn(indexedPublishers);
            assertThat(publisherServiceDefault.search("5")).isEqualTo(publisherVersions);
        }

    }

    @Nested
    @DisplayName("convertIndexedAccountsIntoAccounts method")
    class ConvertTests {
        @DisplayName("When called, should return the PublisherVersions it gets from findByPublisherVersionIdIn")
        @Test
        public void testReturnFromFind(@Mock PublisherVersionRepository publisherVersionRepository) {
            List<PublisherVersion> publisherVersions = new ArrayList<>();
            List<IndexedPublisher> indexedPublishers = new ArrayList<>();
            when(publisherVersionRepository.findByPublisherVersionIdIn(Mockito.any())).thenReturn(publisherVersions);
            assertThat(publisherServiceDefault.convertIndexedPublishersIntoPublisherVersions(indexedPublishers)).isEqualTo(publisherVersions);
        }

    }

    @Nested
    @DisplayName("reindexAllPublishers method")
    class ReindexAllPublishersTests {
        @DisplayName("When called, should follow the call sequence")
        @Test
        public void testCorrectCalls(@Mock PublisherRepository publisherRepository, @Mock PublisherSearchRepository publisherSearchRepository) throws IndexingException {
            publisherServiceDefault.reindexAllPublishers();
            Mockito.verify(publisherRepository).findByValidatedVersionIsNotNull();
            verify(publisherServiceDefault, times(1)).convertPublishersIntoIndexedPublishers(Mockito.any());
            Mockito.verify(publisherSearchRepository).reindex(Mockito.any());
        }

        @DisplayName("When called, should send publishers it gets from findByValidatedVersionIsNotNull to convertPublishersIntoIndexedPublishers")
        @Test
        public void testTransmitsPublishers(@Mock PublisherRepository publisherRepository, @Mock PublisherSearchRepository publisherSearchRepository) throws IndexingException {
            List<Publisher> publishers = new ArrayList<>();
            Publisher publisher = new Publisher();
            publishers.add(publisher);
            when(publisherRepository.findByValidatedVersionIsNotNull()).thenReturn(publishers);
            publisherServiceDefault.reindexAllPublishers();
            verify(publisherServiceDefault, times(1)).convertPublishersIntoIndexedPublishers(publishersArgumentCaptor.capture());
            assertThat(publishersArgumentCaptor.getValue()).isEqualTo(publishers);
        }

        @DisplayName("When called, should send indexedPublishers it gets from convertPublishersIntoIndexedPublishers to reindex")
        @Test
        public void testTransmitIndexedPublishers(@Mock PublisherSearchRepository publisherSearchRepository) throws IndexingException {
            List<IndexedPublisher> indexedPublishers = new ArrayList<>();
            indexedPublishers.add(new IndexedPublisher());
            when(publisherServiceDefaultSpy.convertPublishersIntoIndexedPublishers(Mockito.any())).thenReturn(indexedPublishers);
            publisherServiceDefaultSpy.reindexAllPublishers();
            verify(publisherSearchRepository).reindex(indexedPublishers);
        }

        @DisplayName("When called, should return the number of indexedPublishers it's sent to indexing")
        @Test
        public void testReturnCorrectNumber() throws IndexingException {
            List<IndexedPublisher> indexedPublishers = new ArrayList<>();
            indexedPublishers.add(new IndexedPublisher());
            when(publisherServiceDefaultSpy.convertPublishersIntoIndexedPublishers(Mockito.any())).thenReturn(indexedPublishers);
            assertThat(publisherServiceDefaultSpy.reindexAllPublishers()).isEqualTo(indexedPublishers.size());
        }
    }
}