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 * Licensed to the Apache Software Foundation (ASF) under one   *
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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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 * software distributed under the License is distributed on an  *
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 * KIND, either express or implied.  See the License for the    *
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package org.apache.james.imap.encode;

import java.io.IOException;
import java.util.Locale;

import org.apache.james.imap.api.ImapConstants;
import org.apache.james.imap.message.response.QuotaResponse;
import org.apache.james.mailbox.model.Quota;

/**
 * Quota response encoder
 */
public class QuotaResponseEncoder implements ImapResponseEncoder {
    @Override
    public Class acceptableMessages() {
        return QuotaResponse.class;
    }

    @Override
    public void encode(QuotaResponse quotaResponse, ImapResponseComposer composer) throws IOException {
        String quotaRoot = quotaResponse.getQuotaRoot();
        Quota quota = quotaResponse.getQuota();

        composer.untagged();
        composer.message(ImapConstants.QUOTA_RESPONSE_NAME);
        composer.message(quotaRoot == null ? "" : quotaRoot);
        composer.openParen();
        composer.message(quotaResponse.getResourceName());
        // See RFC 2087 : response for STORAGE should be in KB. For more accuracy, we stores B, so conversion should be made
        switch (quotaResponse.getResourceName().toUpperCase(Locale.US)) {
            case ImapConstants.STORAGE_QUOTA_RESOURCE:
                writeMessagesSize(composer, quota);
                break;
            case ImapConstants.MESSAGE_QUOTA_RESOURCE:
                writeMessagesCount(composer, quota);
                break;
        }

        composer.closeParen();

        composer.end();
    }

    private void writeMessagesSize(ImapResponseComposer composer, Quota quota) throws IOException {
        composer.message(quota.getUsed().asLong() / 1024);
        composer.message(quota.getLimit().asLong() / 1024);
    }

    private void writeMessagesCount(ImapResponseComposer composer, Quota quota) throws IOException {
        composer.message(quota.getUsed().asLong());
        composer.message(quota.getLimit().asLong());
    }
}