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/*
   sys/consoleinterface.cc
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#include "sys/consoleinterface.h"

#include <iostream>

#include <stdlib.h>

namespace sys
{

ConsoleInterface *ConsoleInterface::consoleinterface_instance = 0;

ConsoleInterface::ConsoleInterface()
{
	consoleinterface_ansi = true;
	if (consoleinterface_instance) {
		std::cerr << "multiple sys::ConsoleInterface instances!" << std::endl;
		sys::quit(2);
	}

	consoleinterface_instance = this;
	consoleinterface_text.clear();
	consoleinterface_buffer.clear();
}

ConsoleInterface::~ConsoleInterface()
{
	consoleinterface_instance = 0;
}

ConsoleInterface *ConsoleInterface::instance()
{
	return consoleinterface_instance;
}

std::ostream & ConsoleInterface::messagestream()
{
	flush();
	return (consoleinterface_buffer << "^N");
}

std::ostream & ConsoleInterface::warningstream()
{
	flush();
	return (consoleinterface_buffer << "^W");
}

std::ostream & ConsoleInterface::errorstream()
{
	flush();
	return (consoleinterface_buffer << "^R");
}

std::ostream & ConsoleInterface::debugstream()
{
	flush();
	return (consoleinterface_buffer << "^D");
}

void ConsoleInterface::flush()
{
	char line[MAXCMDSIZE];

	while(consoleinterface_buffer.getline(line, MAXCMDSIZE-1)) {	

		while (consoleinterface_text.size() >= MAXCONLINES) {
			consoleinterface_text.pop_front();
		}
		consoleinterface_text.push_back(std::string(line));

		// print to stdout
		print_ansi(line);
		std::cout << std::endl;
	}
	
	consoleinterface_buffer.clear();
}

void ConsoleInterface::print_ansi(const char *line)
{
	if (consoleinterface_ansi)
		std::cout << "\033[0;39m";

	const char *c = line;
	while (*c) {
		
		if ((*c == '^')) {
			bool is_code = true;
			int bold = 0;
			int color = 39; 

			switch (*(c+1)) {
				case '0': // black
					color = 0;
                                	bold = 1;
                                        break;
                                case '1': // red
                                	color = 31;
                                        break;
                                case '2': // green
                                        color = 32;
                                        break;
                                case '3': // yellow
					bold = 1;
                                        color = 33;
                                        break;
                                case '4': // blue
                                        color = 34;
                                        break;
                                case '5': // cyan
                                        color = 36;
                                        break;
                                case '6': // magenta
                                        color = 35;
                                        break;
                                case '7': // white is mapped to foreground color
					bold = 1;
                                        color = 39;
					break;

				case 'N': // normal
					bold = 0;
					color = 39;
					break;
				case 'B': // bold
					bold = 1;
					color = 39;
					break;
				case 'D': // debug
					bold = 0;
					color = 39;
					break;
				case 'R': // error
					bold = 0;
					color = 31;
					break;
				case 'W': // warning
					bold = 1;
					color = 33;
					break;
				case 'F': // fancy
					bold = 0;
					color = 32;
					break;
				default:
					is_code = false;
			}
			if (is_code) {
				c++;
				if (consoleinterface_ansi)
					std::cout <<  "\033[" << bold << ";" << color << "m";
			} else
				std::cout << *c;
		} else {
			std::cout << *c;
		}
		c++;
	}

	if (consoleinterface_ansi)
		std::cout << "\033[0;39m";
}

} // namespace sys