/*
 * Create_Scratch_Buffer.bsh - a BeanShell macro script to rapidly create
 * temporary buffers in a specified directory
 *
 * Copyright (C) 2005 Jeroen Budts, http://dev.budts.be
 *
 * 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.
 *
 * You can download the most recent version of this macro (and probably others)
 * from my DARCS repository:
 * $ darcs get http://dev.budts.be/darcs/jedit-macros
 */

private final String PATH 		= "I:/scratch-buffers/"; //should end with a slash (/)
private final String PREFIX 	= "";
private final String SUFFIX 	= ".scratch";
// =================== no need to modify below this line =======================
private final char[] ALLOWED_C	= {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'z', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', 'q', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'w', 'x', 'c', 'v', 'b', 'n'};
private final int    NAME_LEN	= 10;
private final long   SEED		= 19831019;

void CreateNewScratchBuffer() {
	Random r = new Random(SEED);

	boolean isValidPath(String path) {
		return new File(path).isDirectory();
	}

	String getFullFileName(String randomPart) {
		return PATH+PREFIX+randomPart+SUFFIX;
	}

	char getRandomChar() {
		return ALLOWED_C[r.nextInt(ALLOWED_C.length)];
	}

	String generateRandomString(int length) {
		StringBuilder s = new StringBuilder();
		for (int i=0; i<length; i++) {
			s.append(getRandomChar());
		}
		return s.toString();
	}

	boolean fileExists(String fileName) {
		return new File(fileName).exists();
	}

	String getRandomFileName() {
		// TODO: check if not exist
		String randomPart;
		do {
			randomPart = generateRandomString(NAME_LEN);
		} while (fileExists(getFullFileName(randomPart)));
		return randomPart;
	}

	if (!isValidPath(PATH)) {
		Macros.error(view, "'"+PATH+"' is not a directory.\n\nPlease enter a valid directory inside the macro by "+
			"modifying the line containing:\n"+
			"private final String PATH = \""+PATH+"\";");
		return;
	} else {
		Log.log(Log.MESSAGE, this, "Creating scratch buffer in directory: '"+PATH+"'");
		jEdit.newFile(view);
		Buffer scratchBuffer = view.getBuffer();
		scratchBuffer.save(view, getFullFileName(getRandomFileName()));
	}
}

//let the fun begin!
CreateNewScratchBuffer();

// _____edit rules___________________________________________________________http://jedit.org
// :mode=beanshell:tabSize=4:indentSize=4:noTabs=false:encoding=UTF-8:wrap=none:maxLineLen=80: