package org.codehaus.jackson.smile;

import java.io.*;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.JsonToken;

public class TestSmileParserNumbers
    extends SmileTestBase
{
    public void testIntsMedium() throws IOException
    {
    	byte[] data = _smileDoc("255");
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(255, p.getIntValue());
    	assertEquals("255", p.getText());

    	data = _smileDoc("-999");
    	p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertEquals(-999, p.getIntValue());
    	assertEquals("-999", p.getText());

    	data = _smileDoc("123456789");
    	p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertEquals(123456789, p.getIntValue());
    }

    public void testMinMaxInts() throws IOException
    {
    	byte[] data = _smileDoc(String.valueOf(Integer.MAX_VALUE));
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertEquals(Integer.MAX_VALUE, p.getIntValue());

    	data = _smileDoc(String.valueOf(Integer.MIN_VALUE));
    	p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertEquals(Integer.MIN_VALUE, p.getIntValue());
    }

    public void testIntsInObjectSkipping() throws IOException
    {
    	byte[] data = _smileDoc("{\"a\":200,\"b\":200}");
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.START_OBJECT, p.nextToken());
    	assertToken(JsonToken.FIELD_NAME, p.nextToken());
    	assertEquals("a", p.getCurrentName());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	// let's NOT access value, forcing skipping
    	assertToken(JsonToken.FIELD_NAME, p.nextToken());
    	assertEquals("b", p.getCurrentName());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	// let's NOT access value, forcing skipping
    	assertToken(JsonToken.END_OBJECT, p.nextToken());
    }
    
    public void testBorderLongs() throws IOException
    {
    	long l = (long) Integer.MIN_VALUE - 1L;
    	byte[] data = _smileDoc(String.valueOf(l), false);
    	assertEquals(6, data.length);
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.LONG, p.getNumberType());
    	assertEquals(l, p.getLongValue());
    	
    	l = 1L + (long) Integer.MAX_VALUE;
    	data = _smileDoc(String.valueOf(l), false);
    	assertEquals(6, data.length);
    	p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.LONG, p.getNumberType());
    	assertEquals(l, p.getLongValue());
    }

    public void testLongs() throws IOException
    {
    	long l = Long.MAX_VALUE;
    	byte[] data = _smileDoc(String.valueOf(l));
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.LONG, p.getNumberType());
    	assertEquals(l, p.getLongValue());
    	assertEquals(String.valueOf(l), p.getText());

    	l = Long.MIN_VALUE;
    	data = _smileDoc(String.valueOf(l));
    	p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.LONG, p.getNumberType());
    	assertEquals(l, p.getLongValue());
    	assertEquals(String.valueOf(l), p.getText());
    }

    public void testArrayWithInts() throws IOException
    {
    	byte[] data = _smileDoc("[ 1, 0, -1, 255, -999, "
    			+Integer.MIN_VALUE+","+Integer.MAX_VALUE+","
    			+Long.MIN_VALUE+", "+Long.MAX_VALUE+" ]");
    	SmileParser p = _smileParser(data);
    	assertNull(p.getCurrentToken());
    	assertToken(JsonToken.START_ARRAY, p.nextToken());

    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(1, p.getIntValue());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(0, p.getIntValue());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(-1, p.getIntValue());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());

    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(255, p.getIntValue());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(-999, p.getIntValue());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());

    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());
    	assertEquals(Integer.MIN_VALUE, p.getIntValue());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(Integer.MAX_VALUE, p.getIntValue());
    	assertEquals(JsonParser.NumberType.INT, p.getNumberType());

    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.LONG, p.getNumberType());
    	assertEquals(Long.MIN_VALUE, p.getLongValue());
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(Long.MAX_VALUE, p.getLongValue());
    	assertEquals(JsonParser.NumberType.LONG, p.getNumberType());
    	
    	assertToken(JsonToken.END_ARRAY, p.nextToken());
    	p.close();
    }    

    public void testFloats() throws IOException
    {
    	ByteArrayOutputStream bo = new ByteArrayOutputStream();
    	SmileGenerator g = smileGenerator(bo, false);
    	float value = 0.37f;
    	g.writeNumber(value);
    	g.close();
    	byte[] data = bo.toByteArray();
    	assertEquals(6, data.length);

    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
    	assertEquals(JsonParser.NumberType.FLOAT, p.getNumberType());
    	assertEquals(value, p.getFloatValue());
    }

    public void testDoubles() throws IOException
    {
    	ByteArrayOutputStream bo = new ByteArrayOutputStream();
    	SmileGenerator g = smileGenerator(bo, false);
    	double value = -12.0986;
    	g.writeNumber(value);
    	g.close();
    	byte[] data = bo.toByteArray();
    	assertEquals(11, data.length);

    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
    	assertEquals(JsonParser.NumberType.DOUBLE, p.getNumberType());
    	assertEquals(value, p.getDoubleValue());
    }

    public void testArrayWithDoubles() throws IOException
    {
    	ByteArrayOutputStream bo = new ByteArrayOutputStream();
    	SmileGenerator g = smileGenerator(bo, false);
    	g.writeStartArray();
    	g.writeNumber(0.1f);
    	g.writeNumber(0.333);
    	g.writeEndArray();
    	g.close();
    	byte[] data = bo.toByteArray();
    	assertEquals(19, data.length);

    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.START_ARRAY, p.nextToken());
    	assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
    	assertEquals(JsonParser.NumberType.FLOAT, p.getNumberType());
    	assertEquals(0.1f, p.getFloatValue());
    	assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
    	assertEquals(JsonParser.NumberType.DOUBLE, p.getNumberType());
    	assertEquals(0.333, p.getDoubleValue());
    	assertToken(JsonToken.END_ARRAY, p.nextToken());
    }

    public void testObjectWithDoubles() throws IOException
    {
        ByteArrayOutputStream bo = new ByteArrayOutputStream();
        SmileGenerator g = smileGenerator(bo, false);
        g.writeStartObject();
        g.writeNumberField("x", 0.5);
        g.writeNumberField("y", 0.01338);
        g.writeEndObject();
        g.close();
        
        byte[] data = bo.toByteArray();

        // first let's just skip 
        SmileParser p = _smileParser(data);
        assertToken(JsonToken.START_OBJECT, p.nextToken());
        assertToken(JsonToken.FIELD_NAME, p.nextToken());
        assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
        assertToken(JsonToken.FIELD_NAME, p.nextToken());
        assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
        assertToken(JsonToken.END_OBJECT, p.nextToken());
        p.close();
        
        // and then check data too (skip codepath distinct)
        p = _smileParser(data);
        assertToken(JsonToken.START_OBJECT, p.nextToken());
        assertToken(JsonToken.FIELD_NAME, p.nextToken());
        assertEquals("x", p.getText());
        assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
        assertEquals(0.5, p.getDoubleValue());
        assertToken(JsonToken.FIELD_NAME, p.nextToken());
        assertEquals("y", p.getText());
        assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
        assertEquals(0.01338, p.getDoubleValue());
        assertToken(JsonToken.END_OBJECT, p.nextToken());
        p.close();
    }
    
    public void testBigInteger() throws IOException
    {
    	ByteArrayOutputStream bo = new ByteArrayOutputStream();
    	BigInteger in = new BigInteger(String.valueOf(Long.MIN_VALUE)+"0012575934");
    	SmileGenerator g = smileGenerator(bo, false);
    	g.writeNumber(in);
    	g.close();
    	byte[] data = bo.toByteArray();
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    	assertEquals(JsonParser.NumberType.BIG_INTEGER, p.getNumberType());
    	assertEquals(BigInteger.class, p.getNumberValue().getClass());
    	assertEquals(in, p.getBigIntegerValue());
    	p.close();
    	
    	// second test; verify skipping works
        bo = new ByteArrayOutputStream();
        g = smileGenerator(bo, false);
        g.writeStartArray();
        g.writeNumber(in);
        g.writeEndArray();
        g.close();
        data = bo.toByteArray();
        p = _smileParser(data);
        assertToken(JsonToken.START_ARRAY, p.nextToken());
        assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
        assertToken(JsonToken.END_ARRAY, p.nextToken());
        assertNull(p.nextToken());
        p.close();
    }    

    public void testBigDecimal() throws IOException
    {
    	ByteArrayOutputStream bo = new ByteArrayOutputStream();
    	BigDecimal in = new BigDecimal("32599.00001");
    	SmileGenerator g = smileGenerator(bo, false);
    	g.writeNumber(in);
    	g.close();
    	byte[] data = bo.toByteArray();
    	SmileParser p = _smileParser(data);
    	assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
    	assertEquals(JsonParser.NumberType.BIG_DECIMAL, p.getNumberType());
    	assertEquals(BigDecimal.class, p.getNumberValue().getClass());
    	assertEquals(in, p.getDecimalValue());
    	p.close();

        // second test; verify skipping works
        bo = new ByteArrayOutputStream();
        g = smileGenerator(bo, false);
        g.writeStartArray();
        g.writeNumber(in);
        g.writeEndArray();
        g.close();
        data = bo.toByteArray();
        p = _smileParser(data);
        assertToken(JsonToken.START_ARRAY, p.nextToken());
        assertToken(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
        assertToken(JsonToken.END_ARRAY, p.nextToken());
        assertNull(p.nextToken());
        p.close();
    }    
}