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package org.apache.james.mailbox;

import static org.assertj.core.api.Assertions.assertThat;

import java.util.Date;
import java.util.UUID;

import javax.mail.Flags;

import org.apache.james.core.Username;
import org.apache.james.events.Event;
import org.apache.james.mailbox.events.MailboxEvents.Added;
import org.apache.james.mailbox.model.MailboxPath;
import org.apache.james.mailbox.model.MessageMetaData;
import org.apache.james.mailbox.model.TestId;
import org.apache.james.mailbox.model.TestMessageId;
import org.apache.james.mailbox.model.ThreadId;
import org.junit.jupiter.api.Test;

import com.google.common.collect.ImmutableSortedMap;

import nl.jqno.equalsverifier.EqualsVerifier;

class EventTest {
    private static final UUID UUID_1 = UUID.fromString("6e0dd59d-660e-4d9b-b22f-0354479f47b4");
    public static final Username BOB = Username.of("BOB");

    @Test
    void eventIdShouldMatchBeanContract() {
        EqualsVerifier.forClass(Event.EventId.class).verify();
    }

    @Test
    void ofShouldDeserializeUUIDs() {
        assertThat(Event.EventId.of(UUID_1.toString()))
            .isEqualTo(Event.EventId.of(UUID_1));
    }

    @Test
    void getMessageIdsShouldReturnEmptyWhenAddedEmpty() {
        Added added = new Added(MailboxSession.SessionId.of(36), BOB, MailboxPath.inbox(BOB), TestId.of(48), ImmutableSortedMap.of(), Event.EventId.of(UUID_1));

        assertThat(added.getMessageIds()).isEmpty();
    }

    @Test
    void getMessageIdsShouldReturnDistinctValues() {
        MessageUid uid1 = MessageUid.of(36);
        MessageUid uid2 = MessageUid.of(37);
        TestMessageId messageId1 = TestMessageId.of(45);
        TestMessageId messageId2 = TestMessageId.of(46);
        MessageMetaData metaData1 = new MessageMetaData(uid1, ModSeq.of(85), new Flags(), 36, new Date(), messageId1, ThreadId.fromBaseMessageId(messageId1));
        MessageMetaData metaData2 = new MessageMetaData(uid2, ModSeq.of(85), new Flags(), 36, new Date(), messageId2, ThreadId.fromBaseMessageId(messageId2));

        Added added = new Added(MailboxSession.SessionId.of(36), BOB, MailboxPath.inbox(BOB), TestId.of(48),
            ImmutableSortedMap.of(
                uid1, metaData1,
                uid2, metaData2),
            Event.EventId.of(UUID_1));

        assertThat(added.getMessageIds()).containsOnly(messageId1, messageId2);
    }

    @Test
    void getMessageIdsShouldNotReturnDuplicates() {
        MessageUid uid1 = MessageUid.of(36);
        MessageUid uid2 = MessageUid.of(37);
        TestMessageId messageId = TestMessageId.of(45);
        MessageMetaData metaData1 = new MessageMetaData(uid1, ModSeq.of(85), new Flags(), 36, new Date(), messageId, ThreadId.fromBaseMessageId(messageId));
        MessageMetaData metaData2 = new MessageMetaData(uid2, ModSeq.of(85), new Flags(), 36, new Date(), messageId, ThreadId.fromBaseMessageId(messageId));

        Added added = new Added(MailboxSession.SessionId.of(36), BOB, MailboxPath.inbox(BOB), TestId.of(48),
            ImmutableSortedMap.of(
                uid1, metaData1,
                uid2, metaData2),
            Event.EventId.of(UUID_1));

        assertThat(added.getMessageIds()).containsExactly(messageId);
    }
}