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 * 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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package org.apache.james.webadmin.dto;

import java.util.Optional;

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 org.apache.james.mailbox.model.Quota;

import com.google.common.base.Preconditions;

public class QuotaDetailsDTO {

    public static Builder builder() {
        return new Builder();
    }

    public static class Builder {
        private Optional global;
        private Optional domain;
        private Optional user;
        private Optional computed;
        private OccupationDTO occupation;

        private Builder() {
            global = Optional.empty();
            user = Optional.empty();
            computed = Optional.empty();
        }

        public Builder global(ValidatedQuotaDTO global) {
            this.global = Optional.of(global);
            return this;
        }

        public Builder domain(ValidatedQuotaDTO domain) {
            this.domain = Optional.of(domain);
            return this;
        }

        public Builder user(ValidatedQuotaDTO user) {
            this.user = Optional.of(user);
            return this;
        }

        public Builder computed(ValidatedQuotaDTO computed) {
            this.computed = Optional.of(computed);
            return this;
        }

        public Builder occupation(Quota sizeQuota, Quota countQuota) {
            this.occupation = OccupationDTO.from(sizeQuota, countQuota);
            return this;
        }

        public Builder valueForScope(Quota.Scope scope, ValidatedQuotaDTO value) {
            switch (scope) {
                case Global:
                    return global(value);
                case Domain:
                    return domain(value);
                case User:
                    return user(value);
            }
            return this;
        }

        public QuotaDetailsDTO build() {
            Preconditions.checkNotNull(occupation);
            return new QuotaDetailsDTO(global, domain, user, computed, occupation);
        }
    }

    private final Optional global;
    private final Optional domain;
    private final Optional user;
    private final Optional computed;
    private final OccupationDTO occupation;

    private QuotaDetailsDTO(Optional global, Optional domain, Optional user, Optional computed, OccupationDTO occupation) {
        this.global = global;
        this.domain = domain;
        this.user = user;
        this.computed = computed;
        this.occupation = occupation;
    }

    public Optional getGlobal() {
        return global;
    }

    public Optional getDomain() {
        return domain;
    }

    public Optional getUser() {
        return user;
    }

    public Optional getComputed() {
        return computed;
    }

    public OccupationDTO getOccupation() {
        return occupation;
    }
}