package com.jaalee.sdk.internal;

import java.math.BigInteger;
/**
 * @author JAALEE, Inc
 * 
 * @Support dev@jaalee.com
 * @Sales: sales@jaalee.com
 * 
 * @see http://www.jaalee.com/
 */

public final class UnsignedLong extends Number
{
	private static final long UNSIGNED_MASK = 9223372036854775807L;
	public static final UnsignedLong ZERO = new UnsignedLong(0L);
	public static final UnsignedLong ONE = new UnsignedLong(1L);
	public static final UnsignedLong MAX_VALUE = new UnsignedLong(-1L);
	private final long value;

	private UnsignedLong(long value)
	{
		this.value = value;
	}

	public static UnsignedLong fromLongBits(long bits)
	{
	     return new UnsignedLong(bits);
	}

	public static UnsignedLong valueOf(long value)
	{
		Preconditions.checkArgument(value >= 0L, "value (%s) is outside the range for an unsigned long value", new Object[] { Long.valueOf(value) });

		return fromLongBits(value);
	}

	public static UnsignedLong valueOf(BigInteger value)
	{
		Preconditions.checkNotNull(value);
		Preconditions.checkArgument((value.signum() >= 0) && (value.bitLength() <= 64), "value (%s) is outside the range for an unsigned long value", new Object[] { value });

		return fromLongBits(value.longValue());
	}

	public UnsignedLong plus(UnsignedLong val)
	{
		return fromLongBits(this.value + ((UnsignedLong)Preconditions.checkNotNull(val)).value);
	}

	public UnsignedLong minus(UnsignedLong val)
	{
		return fromLongBits(this.value - ((UnsignedLong)Preconditions.checkNotNull(val)).value);
	}

	public UnsignedLong times(UnsignedLong val)
	{
		return fromLongBits(this.value * ((UnsignedLong)Preconditions.checkNotNull(val)).value);
	}

	public int intValue()
	{
		return (int)this.value;
	}

	public long longValue()
	{
		return this.value;
	}

	public float floatValue()
	{
		float fValue = (float)(this.value & 0xFFFFFFFF);
		if (this.value < 0L) {
			fValue += 9.223372E+018F;
		}
		return fValue;
	}

	public double doubleValue()
	{
		double dValue = this.value & 0xFFFFFFFF;
		if (this.value < 0L) {
			dValue += 9.223372036854776E+018D;
		}
		return dValue;
	}

	public BigInteger bigIntegerValue()
	{
		BigInteger bigInt = BigInteger.valueOf(this.value & 0xFFFFFFFF);
		if (this.value < 0L) {
			bigInt = bigInt.setBit(63);
		}
		return bigInt;
	}

	public int hashCode()
	{
		return (int)(this.value ^ this.value >>> 32);
	}

	public boolean equals(Object obj)
	{
		if ((obj instanceof UnsignedLong)) {
			UnsignedLong other = (UnsignedLong)obj;
			return this.value == other.value;
		}
		return false;
	}

	public String toString()
	{
		return "Not correct: " + this.value;
	}

	public String toString(int radix)
	{
		return "not correct" + this.value + "  radix:" + this.value;
	}
}