package timeflow.vis;

import timeflow.data.time.*;

import java.util.*;

public class TimeScale
{
        private double low, high;
        private Interval interval;

        public TimeScale()
        {
                low = 0;
                high = 100;
                interval = new Interval(new Date(0).getTime(), new Date().getTime());
        }

        public Interval getInterval()
        {
                return interval;
        }

        public void setNumberRange(double low, double high)
        {
                this.low = low;
                this.high = high;
        }

        public void setDateRange(Interval t)
        {
                setDateRange(t.start, t.end);
        }

        public void setDateRange(long first, long last)
        {
                interval.setTo(first, last);
        }

        public boolean containsDate(long date)
        {
                return interval.contains(date);
        }

        public boolean containsNum(double x)
        {
                return x >= low && x <= high;
        }

        public long duration()
        {
                return interval.length();
        }

        public double toNum(long time)
        {
                return low + (high - low) * (time - interval.start) / (double) duration();
        }

        public long spaceToTime(double space)
        {
                return (long) (space * duration() / (high - low));
        }

        public int toInt(long time)
        {
                return (int) toNum(time);
        }

        public long toTime(double num)
        {
                double millis = interval.start + duration() * (num - low) / (high - low);
                return (long) millis;
        }

        public double getLow()
        {
                return low;
        }

        public void setLow(double low)
        {
                this.low = low;
        }

        public double getHigh()
        {
                return high;
        }

        public void setHigh(double high)
        {
                this.high = high;
        }
}