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package org.apache.james.mailbox.cassandra.mail;

import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.INBOX_ID;
import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.INBOX_ID_AND_PATH;
import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.OTHER_USER_MAILBOXPATH;
import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.OUTBOX_ID;
import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.USER_INBOX_MAILBOXPATH;
import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.USER_OUTBOX_MAILBOXPATH;
import static org.apache.james.mailbox.cassandra.mail.MailboxFixture.otherMailboxId;
import static org.assertj.core.api.Assertions.assertThat;

import java.util.List;

import org.apache.james.backends.cassandra.CassandraCluster;
import org.apache.james.backends.cassandra.CassandraClusterExtension;
import org.apache.james.backends.cassandra.components.CassandraModule;
import org.apache.james.backends.cassandra.versions.CassandraSchemaVersionModule;
import org.apache.james.mailbox.cassandra.modules.CassandraMailboxModule;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;

import nl.jqno.equalsverifier.EqualsVerifier;

class CassandraMailboxPathDAOImplTest {
    @RegisterExtension
    static CassandraClusterExtension cassandraCluster = new CassandraClusterExtension(CassandraModule.aggregateModules(
        CassandraMailboxModule.MODULE, CassandraSchemaVersionModule.MODULE));

    CassandraMailboxPathDAOImpl testee;

    @BeforeEach
    void setUp(CassandraCluster cassandra) {
        testee = new CassandraMailboxPathDAOImpl(
            cassandra.getConf(),
            cassandra.getTypesProvider(),
            cassandraCluster.getCassandraConsistenciesConfiguration());
    }

    @Test
    void cassandraIdAndPathShouldRespectBeanContract() {
        EqualsVerifier.forClass(CassandraIdAndPath.class).verify();
    }

    @Test
    void saveShouldInsertNewEntry() {
        assertThat(testee.save(USER_INBOX_MAILBOXPATH, INBOX_ID).block()).isTrue();

        assertThat(testee.retrieveId(USER_INBOX_MAILBOXPATH).blockOptional())
            .contains(INBOX_ID_AND_PATH);
    }

    @Test
    void retrieveIdShouldReturnEmptyWhenEmptyData() {
        assertThat(testee.retrieveId(USER_INBOX_MAILBOXPATH).blockOptional())
            .isEmpty();
    }

    @Test
    void retrieveIdShouldReturnStoredData() {
        testee.save(USER_INBOX_MAILBOXPATH, INBOX_ID).block();

        assertThat(testee.retrieveId(USER_INBOX_MAILBOXPATH).blockOptional())
            .contains(INBOX_ID_AND_PATH);
    }

    @Test
    void getUserMailboxesShouldReturnAllMailboxesOfUser() {
        testee.save(USER_INBOX_MAILBOXPATH, INBOX_ID).block();
        testee.save(USER_OUTBOX_MAILBOXPATH, OUTBOX_ID).block();
        testee.save(OTHER_USER_MAILBOXPATH, otherMailboxId).block();

        List<CassandraIdAndPath> cassandraIds = testee
            .listUserMailboxes(USER_INBOX_MAILBOXPATH.getNamespace(), USER_INBOX_MAILBOXPATH.getUser())
            .collectList()
            .block();

        assertThat(cassandraIds)
            .hasSize(2)
            .containsOnly(INBOX_ID_AND_PATH, new CassandraIdAndPath(OUTBOX_ID, USER_OUTBOX_MAILBOXPATH));
    }

    @Test
    void deleteShouldNotThrowWhenEmpty() {
        testee.delete(USER_INBOX_MAILBOXPATH).block();
    }

    @Test
    void deleteShouldDeleteTheExistingMailboxId() {
        testee.save(USER_INBOX_MAILBOXPATH, INBOX_ID).block();

        testee.delete(USER_INBOX_MAILBOXPATH).block();

        assertThat(testee.retrieveId(USER_INBOX_MAILBOXPATH).blockOptional())
            .isEmpty();
    }

    @Test
    void countAllShouldReturnEntryCount() {
        testee.save(USER_INBOX_MAILBOXPATH, INBOX_ID).block();
        testee.save(USER_OUTBOX_MAILBOXPATH, OUTBOX_ID).block();
        testee.save(OTHER_USER_MAILBOXPATH, otherMailboxId).block();

        assertThat(testee.countAll().block())
            .isEqualTo(3);
    }

    @Test
    void countAllShouldReturnZeroByDefault() {
        assertThat(testee.countAll().block())
            .isEqualTo(0);
    }

    @Test
    void readAllShouldReturnAllStoredData() {
        testee.save(USER_INBOX_MAILBOXPATH, INBOX_ID).block();
        testee.save(USER_OUTBOX_MAILBOXPATH, OUTBOX_ID).block();
        testee.save(OTHER_USER_MAILBOXPATH, otherMailboxId).block();

        assertThat(testee.readAll().toIterable())
            .containsOnly(
                new CassandraIdAndPath(INBOX_ID, USER_INBOX_MAILBOXPATH),
                new CassandraIdAndPath(OUTBOX_ID, USER_OUTBOX_MAILBOXPATH),
                new CassandraIdAndPath(otherMailboxId, OTHER_USER_MAILBOXPATH));
    }

    @Test
    void readAllShouldReturnEmptyByDefault() {
        assertThat(testee.readAll().toIterable())
            .isEmpty();
    }
}