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 * Licensed to the Apache Software Foundation (ASF) under one   *
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 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
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 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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package org.apache.james.mailbox.store.quota;

import java.util.Map;

import javax.inject.Inject;

import org.apache.james.core.quota.QuotaCount;
import org.apache.james.core.quota.QuotaSize;
import org.apache.james.mailbox.exception.MailboxException;
import org.apache.james.mailbox.model.Quota;
import org.apache.james.mailbox.model.Quota.Scope;
import org.apache.james.mailbox.model.QuotaRoot;
import org.apache.james.mailbox.quota.CurrentQuotaManager;
import org.apache.james.mailbox.quota.MaxQuotaManager;
import org.apache.james.mailbox.quota.QuotaManager;

/**
 * Default implementation for the Quota Manager.
 *
 * Relies on the CurrentQuotaManager and MaxQuotaManager provided.
 */
public class StoreQuotaManager implements QuotaManager {
    private final CurrentQuotaManager currentQuotaManager;
    private final MaxQuotaManager maxQuotaManager;

    @Inject
    public StoreQuotaManager(CurrentQuotaManager currentQuotaManager, MaxQuotaManager maxQuotaManager) {
        this.currentQuotaManager = currentQuotaManager;
        this.maxQuotaManager = maxQuotaManager;
    }

    @Override
    public Quota<QuotaCount> getMessageQuota(QuotaRoot quotaRoot) throws MailboxException {
        Map<Scope, QuotaCount> maxMessageDetails = maxQuotaManager.listMaxMessagesDetails(quotaRoot);
        return Quota.<QuotaCount>builder()
            .used(currentQuotaManager.getCurrentMessageCount(quotaRoot))
            .computedLimit(maxQuotaManager.getMaxMessage(maxMessageDetails).orElse(QuotaCount.unlimited()))
            .limitsByScope(maxMessageDetails)
            .build();
    }


    @Override
    public Quota<QuotaSize> getStorageQuota(QuotaRoot quotaRoot) throws MailboxException {
        Map<Scope, QuotaSize> maxStorageDetails = maxQuotaManager.listMaxStorageDetails(quotaRoot);
        return Quota.<QuotaSize>builder()
            .used(currentQuotaManager.getCurrentStorage(quotaRoot))
            .computedLimit(maxQuotaManager.getMaxStorage(maxStorageDetails).orElse(QuotaSize.unlimited()))
            .limitsByScope(maxStorageDetails)
            .build();
    }

}