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package org.apache.james.mailbox.model;

import java.util.Objects;

import org.apache.james.core.quota.QuotaCountLimit;
import org.apache.james.core.quota.QuotaCountUsage;
import org.apache.james.core.quota.QuotaSizeLimit;
import org.apache.james.core.quota.QuotaSizeUsage;

import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;

public class QuotaRatio {

    public static QuotaRatio from(Quota quotaSize, Quota quotaCount) {
        return new QuotaRatio(quotaSize, quotaCount);
    }

    private final Quota quotaSize;
    private final Quota quotaCount;

    private QuotaRatio(Quota quotaSize, Quota quotaCount) {
        Preconditions.checkNotNull(quotaSize, "'quotaSize' is mandatory");
        Preconditions.checkNotNull(quotaCount, "'quotaCount' is mandatory");
        this.quotaSize = quotaSize;
        this.quotaCount = quotaCount;
    }

    public Quota getQuotaSize() {
        return quotaSize;
    }

    public Quota getQuotaCount() {
        return quotaCount;
    }

    public double max() {
        return Math.max(quotaSize.getRatio(), quotaCount.getRatio());
    }

    @Override
    public final boolean equals(Object o) {
        if (o instanceof QuotaRatio) {
            QuotaRatio quotaRatio = (QuotaRatio) o;

            return Objects.equals(this.quotaSize, quotaRatio.quotaSize)
                && Objects.equals(this.quotaCount, quotaRatio.quotaCount);
        }
        return false;
    }

    @Override
    public final int hashCode() {
        return Objects.hash(quotaSize, quotaCount);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
            .add("quotaSize", quotaSize)
            .add("quotaCount", quotaCount)
            .toString();
    }
}