/**
 * Authors: Frank Benoit <keinfarbton@googlemail.com>
 */

module dwt.dwthelper.Integer;

import dwt.dwthelper.utils;

static import tango.text.convert.Integer;
private import tango.core.Exception;

public final class Byte {
    public static byte parseByte( char[] s ){
        try{
            int res = tango.text.convert.Integer.parse( s );
            if( res < byte.min || res > byte.max ){
                throw new NumberFormatException( "out of range" );
            }
            return res;
        }
        catch( IllegalArgumentException e ){
            throw new NumberFormatException( e );
        }
    }
}
public final class Integer {

    public static int MIN_VALUE = 0x80000000;
    public static int MAX_VALUE = 0x7fffffff;
    public static int SIZE = 32;

    public int value;
    public this ( int value ){
        this.value = value;
    }

    public this ( char[] s ){
    }

    public static char[] toString( int i, int radix ){
        switch( radix ){
        case 2:
            return toBinaryString(i);
        case 8:
            return toOctalString(i);
        case 10:
            return toString(i);
        case 16:
            return toHexString(i);
        default:
            implMissing( __FILE__, __LINE__ );
            return null;
        }
    }

    public static char[] toHexString( int i ){
        return tango.text.convert.Integer.toString(i, tango.text.convert.Integer.Style.Hex );
    }

    public static char[] toOctalString( int i ){
        return tango.text.convert.Integer.toString(i, tango.text.convert.Integer.Style.Octal );
    }

    public static char[] toBinaryString( int i ){
        return tango.text.convert.Integer.toString(i, tango.text.convert.Integer.Style.Binary );
    }

    public static char[] toString( int i ){
        return tango.text.convert.Integer.toString(i);
    }

    public static int parseInt( char[] s, int radix ){
        try{
            return tango.text.convert.Integer.parse( s, cast(uint)radix );
        }
        catch( IllegalArgumentException e ){
            throw new NumberFormatException( e );
        }
    }

    public static int parseInt( char[] s ){
        try{
            return tango.text.convert.Integer.parse( s );
        }
        catch( IllegalArgumentException e ){
            throw new NumberFormatException( e );
        }
    }

    public static Integer valueOf( char[] s, int radix ){
        implMissing( __FILE__, __LINE__ );
        return null;
    }

    public static Integer valueOf( char[] s ){
        implMissing( __FILE__, __LINE__ );
        return null;
    }

    public static Integer valueOf( int i ){
        implMissing( __FILE__, __LINE__ );
        return null;
    }

    public byte byteValue(){
        return cast(byte)value;
    }

    public short shortValue(){
        return cast(short)value;
    }

    public int intValue(){
        return value;
    }

    public long longValue(){
        return cast(long)value;
    }

    public float floatValue(){
        return cast(float)value;
    }

    public double doubleValue(){
        return cast(double)value;
    }

    public override  hash_t toHash(){
        return intValue();
    }

    public override int opEquals( Object obj ){
        implMissing( __FILE__, __LINE__ );
        return false;
    }

    public override char[] toString(){
        return tango.text.convert.Integer.toString( value );
    }
}