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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.mailbox.store.mail;

import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;
import java.util.List;

import org.apache.james.mailbox.exception.AttachmentNotFoundException;
import org.apache.james.mailbox.exception.MailboxException;
import org.apache.james.mailbox.model.AttachmentId;
import org.apache.james.mailbox.model.AttachmentMetadata;
import org.apache.james.mailbox.model.MessageAttachmentMetadata;
import org.apache.james.mailbox.model.MessageId;
import org.apache.james.mailbox.model.ParsedAttachment;
import org.apache.james.mailbox.store.transaction.Mapper;

import reactor.core.publisher.Mono;
import reactor.core.scheduler.Schedulers;

public interface AttachmentMapper extends Mapper {

    InputStream loadAttachmentContent(AttachmentId attachmentId) throws AttachmentNotFoundException, IOException;

    AttachmentMetadata getAttachment(AttachmentId attachmentId) throws AttachmentNotFoundException;

    List<AttachmentMetadata> getAttachments(Collection<AttachmentId> attachmentIds);

    List<MessageAttachmentMetadata> storeAttachments(Collection<ParsedAttachment> attachments, MessageId ownerMessageId) throws MailboxException;

    default Mono<List<MessageAttachmentMetadata>> storeAttachmentsReactive(Collection<ParsedAttachment> attachments, MessageId ownerMessageId) {
        return Mono.fromCallable(() -> storeAttachments(attachments, ownerMessageId))
            .subscribeOn(Schedulers.elastic());
    }

    Collection<MessageId> getRelatedMessageIds(AttachmentId attachmentId) throws MailboxException;
}