/*
 * Copyright 2009-2011 by The Regents of the University of California
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * you may obtain a copy of the License from
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package edu.uci.ics.asterix.om.base;

import edu.uci.ics.asterix.common.exceptions.AsterixException;
import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
import edu.uci.ics.asterix.om.types.BuiltinType;
import edu.uci.ics.asterix.om.types.IAType;
import edu.uci.ics.asterix.om.visitors.IOMVisitor;

public class ATime implements IAObject {

    /**
     * number of milliseconds since the beginning of a day represented by this time value
     */
    protected int chrononTime;

    public ATime(int chrononTime) {
        this.chrononTime = chrononTime;
    }

    @Override
    public IAType getType() {
        return BuiltinType.ATIME;
    }

    public int compare(Object o) {
        if (!(o instanceof ATime)) {
            return -1;
        }

        ATime d = (ATime) o;
        if (this.chrononTime > d.chrononTime) {
            return 1;
        } else if (this.chrononTime < d.chrononTime) {
            return -1;
        } else {
            return 0;
        }
    }

    @Override
    public boolean equals(Object o) {

        if (!(o instanceof ATime)) {
            return false;
        } else {
            ATime t = (ATime) o;
            return t.chrononTime == this.chrononTime;

        }
    }

    @Override
    public int hashCode() {
        return chrononTime;
    }

    @Override
    public void accept(IOMVisitor visitor) throws AsterixException {
        visitor.visitATime(this);
    }

    @Override
    public boolean deepEqual(IAObject obj) {
        return equals(obj);
    }

    @Override
    public int hash() {
        return hashCode();
    }

    @Override
    public String toString() {
        StringBuilder sbder = new StringBuilder();
        sbder.append("ATime: { ");
        GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(chrononTime, 0, sbder,
                GregorianCalendarSystem.Fields.HOUR, GregorianCalendarSystem.Fields.MILLISECOND);
        sbder.append(" }");
        return sbder.toString();

    }

    public int getChrononTime() {
        return chrononTime;
    }

}