/**
VOGen.bsh - a BeanShell macro for the jEdit text editor that 
create get and set methods for all variables.

Limitations: The content to be processed must have matching 
brackets for the macro to work correctly.

Copyright (C)  2004 Jia Zhiming jiazhimi@yahoo.com.cn

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
*/

boolean JAVA_MODE = buffer.getMode().getName().equals("java");

void convert()
{    	
       if (!JAVA_MODE)
       {
           Macros.error( view, "The edit mode is not java mode. You may want to save the file to a java file first." );
           return;
       }
       
       /**
        * used to hold the content of modified file, initially hold the 
        * original content before the last '}', when encounter the last
        * '}', it will merg the StringBuffer expend, which hold all the
        * generated get and set methods, then write the final '}'
        */ 
       StringBuffer sb = new StringBuffer();
       
       /**
        * hold the generated get and set methods with javadocs
        */
       StringBuffer expend = new StringBuffer();
	   
       //whether inside a comment block
       boolean commentsBlock = false;
       
       //whether the expend portion has been merged into sb
       boolean printed = false;
       
       //The level of brackets, eg {{content}} numOfBlks of content will be 2
       int numOfBlks = 0;
       
       //whether is inside any bracket
       boolean inside = false;
       String tempStr = null;
       
       //variable type used in get and set method signature
       String typ = null;
       
       //variable name used in get and set method signature
       String varName = null;
       String toWrite = null;
       int lineCnt = textArea.getLineCount();

       String inLine = null;

	for (int i = 0; i < lineCnt; i++)
	{
	    inLine = textArea.getLineText(i);
	    toWrite = inLine + "\n";
	    inLine = inLine.trim();

	    if (inLine.startsWith("/*"))
	    {
		    if (inLine.endsWith("*/"))
		    {
				commentsBlock = false;
				sb.append(toWrite);		
				continue;
		    }
		    else
		    {
		    	commentsBlock = true;
				sb.append(toWrite);		
				continue;
			}
	    }

	    if (inLine.endsWith("*/"))
	    {
			commentsBlock = false;
			sb.append(toWrite);		
			continue;
	    }
	    else if (commentsBlock)
	    {
			sb.append(toWrite);		
			continue;    
	    }

	    int occ = occurance(inLine, "{");
	    if (occ > 0)
	    {
			inside = true;
			numOfBlks += occ;
	    }

	    int occ2 = occurance(inLine, "}");
	    if (occ2 > 0)
	    {
			numOfBlks -= occ2;
	    }

	    if (inside == true && numOfBlks == 0 && printed == false)
	    {
		    sb.append(expend.toString());
		    sb.append(toWrite);
			printed = true;
			continue;
	    }

	    if(numOfBlks == 0)
	    {
			sb.append(toWrite);
	    }
	    else if (commentsBlock)
	    {
			sb.append(toWrite);
	    }
	    else if (numOfBlks > 1)
	    {
			sb.append(toWrite);
	    }
	    else if (!inLine.endsWith(";"))
	    {
			sb.append(toWrite);
	    }
	    else if (inLine.startsWith("//"))
	    {
			sb.append(toWrite);
	    }
	    else if (inLine.startsWith("package"))
	    {
			sb.append(toWrite);
	    }
	    else if (inLine.startsWith("import"))
	    {
			sb.append(toWrite);
	    }
	    else if (inLine.indexOf("=") < 0)
	    {
			tempStr = inLine.substring(0, (inLine.length() - 1));
			tempStr = tempStr.trim();
			StringTokenizer st = new StringTokenizer(tempStr, " ");
			int max = st.countTokens();
			for (int k = 0; k < (max - 2); k++)
			{
			    st.nextToken();
			}
			typ = st.nextToken();
			varName = st.nextToken();
			String getMethod = "public " + typ + " " + "get" +
			    varName.substring(0,1).toUpperCase() + varName.substring(1) + "()";
			sb.append(toWrite);
			if (textArea.getText().indexOf(getMethod) == -1)
			{
			    expend.append("\n\t/**\n"); 
			    expend.append("\t * Returns the value of " + varName + ".\n"); 
			    expend.append("\t */"); 
			    expend.append("\n\t" + getMethod + "\n");
			    expend.append("\t{\n\t\t return " + varName + "; \n\t}\n");
			    if (inLine.indexOf("final ") == -1 && inLine.indexOf("const ") == -1)
			    {
				    expend.append("\n\t/**\n");
				    expend.append("\t * Sets the value of " + varName + ".\n"); 
				    expend.append("\t * @param " + typ + " " + varName + " The value to assign to " + varName + ".\n");
				    expend.append("\t */");
				    expend.append("\n\tpublic void " + "set" + varName.substring(0,1).toUpperCase() + varName.substring(1) + "(" + typ + " " + varName + ")\n");
				    expend.append("\t{\n\t\t this." + varName + " = " + varName + "; \n\t}\n");
			    }
			}
		}
		else
		{
			tempStr = inLine.substring(0, (inLine.lastIndexOf("=") - 1));
			tempStr = tempStr.trim();
			StringTokenizer st = new StringTokenizer(tempStr, " ");
			int max = st.countTokens();
			for (int k = 0; k < (max - 2); k++)
			{
			    st.nextToken();
			}
			typ = st.nextToken();
			varName = st.nextToken();
			String getMethod = "public " + typ + " " + "get" +
			    varName.substring(0,1).toUpperCase() + varName.substring(1) + "()";
			sb.append(toWrite);
			if (textArea.getText().indexOf(getMethod) == -1)
			{
			    expend.append("\n\t/**\n"); 
			    expend.append("\t * Returns the value of " + varName + ".\n"); 
			    expend.append("\t */"); 
			    expend.append("\n\t" + getMethod + "\n");
			    expend.append("\t{\n\t\t return " + varName + "; \n\t}\n");
			    if (inLine.indexOf("final ") == -1 && inLine.indexOf("const ") == -1)
			    {
				    expend.append("\n\t/**\n");
				    expend.append("\t * Sets the value of " + varName + ".\n"); 
				    expend.append("\t * @param " + typ + " " + varName + " The value to assign to " + varName + ".\n");
				    expend.append("\t */");
				    expend.append("\n\tpublic void " + "set" + varName.substring(0,1).toUpperCase() + varName.substring(1) + "(" + typ + " " + varName + ")\n");
				    expend.append("\t{\n\t\t this." + varName + " = " + varName + "; \n\t}\n");
			    }
			}
	    }
    } 
    textArea.setText(sb.toString());   
}

/**
 *	get the number of occurance of the String toFind in target String tStr
 */
int occurance(String tStr, String toFind)
{
	int cnt = 0;
	int idx = -1;
	idx = tStr.indexOf(toFind);
	while (idx > -1)
	{
	    cnt = cnt + 1;
	    tStr = tStr.substring(idx + 1);
	    idx = tStr.indexOf(toFind);
	}
	return cnt;
}

if( buffer.isReadOnly() )
	Macros.error( view, "Buffer is read-only." );
else
	convert();