package com.smtscript.lib.kcsv;

import java.io.File;
import java.io.FileOutputStream;
import java.nio.charset.Charset;
import java.util.Map.Entry;

import org.mozilla.javascript.NativeObject;

import com.smtscript.utils.SMTStatic;

public class ScriptKCSVWriter 
{
	private FileOutputStream _fos;
	private Charset _charset = Charset.forName("UTF-8");
	
	public ScriptKCSVWriter(File file) throws Exception
	{
		_fos = new FileOutputStream(file);
	}
	
	public void writeLine(NativeObject nvValues) throws Exception
	{
		StringBuilder sbOut = new StringBuilder();
		for(Entry<Object, Object> entry : nvValues.entrySet())
		{
			if(sbOut.length() > 0)
				sbOut.append(",");
			sbOut.append(String.format(
					"%s,%s", 
					convString(entry.getKey().toString()),
					convString(SMTStatic.toString(entry.getValue()))		
					));
		}
		sbOut.append("\r\n");
		_fos.write(sbOut.toString().getBytes(_charset));
	}
	
	private String convString(String text)
	{
		return String.format("\"%s\"", text.replace("\"", "\"\""));
	}
	
	public void close() throws Exception
	{
		if(_fos != null)
		{
			_fos.close();
			_fos = null;
		}
	}
}