#!/usr/bin/php
<?php

	// Define The Bug Genie paths and related constants
	defined('DS') || define('DS', DIRECTORY_SEPARATOR);
	defined('THEBUGGENIE_PATH') || define ('THEBUGGENIE_PATH', realpath(getcwd() . DS) . DS);
	defined('THEBUGGENIE_CORE_PATH') || define('THEBUGGENIE_CORE_PATH', THEBUGGENIE_PATH . 'core' . DS);
	defined('THEBUGGENIE_CORE_PATH') || define('THEBUGGENIE_CORE_PATH', THEBUGGENIE_PATH . 'core' . DIRECTORY_SEPARATOR);
	defined('THEBUGGENIE_MODULES_PATH') || define('THEBUGGENIE_MODULES_PATH', THEBUGGENIE_PATH . 'modules' . DIRECTORY_SEPARATOR);
	defined('THEBUGGENIE_PUBLIC_FOLDER_NAME') || define('THEBUGGENIE_PUBLIC_FOLDER_NAME', '');

	try
	{
		// Include the "engine" script, which initializes and sets up stuff
		require THEBUGGENIE_PATH . 'core/tbg_engine.inc.php';
	}
	catch (Exception $e)
	{
		TBGCliCommand::cli_echo("An error occured when trying to initialize the command line client:\n", 'white', 'bold');
		TBGCliCommand::cli_echo($e->getMessage() . "\n", 'red', 'bold');
		die();
	}

	// Set up all available search paths for cli commands
	$command_paths = array();
	$command_paths['main'] = THEBUGGENIE_PATH . 'modules' . DS . 'main' . DS . 'classes' . DS . 'cli' . DS;
	$command_paths['remote'] = THEBUGGENIE_PATH . 'modules' . DS . 'remote' . DS . 'classes' . DS . 'cli' . DS;
	foreach (TBGContext::getModules() as $module_name => $module)
	{
		$module_cli_path = THEBUGGENIE_PATH . 'modules' . DS . $module_name . DS . 'classes' . DS . 'cli' . DS;
		if (file_exists($module_cli_path))
		{
			$command_paths[$module_name] = $module_cli_path;
		}
	}

	// Set up all cli commands
	$commands = array('main' => array());
	foreach ($command_paths as $module_name => $command_path)
	{
		TBGContext::addClasspath($command_path);
		$_path_handle = opendir($command_path);
		while ($command_class_file = readdir($_path_handle))
		{
			if (($classname = substr($command_class_file, 0, strpos($command_class_file, '.'))) != '')
			{
				$command = new $classname();
				if ($command instanceof TBGCliCommand)
				{
					$commands[$module_name][$command->getCommandName()] = $command;
					foreach ($command->getCommandAliases() as $alias)
					{
						$commands[$module_name][$alias] = $command;
					}
				}
			}
		}
	}
	TBGCliCommand::setAvailableCommands($commands);

	if ($argc < 2)
	{
		// Show usage if no parameters are provided
		TBGCliCommand::cli_echo("The Bug Genie command line tool\n\n");
		TBGCliCommand::cli_echo("Usage: ", 'white', 'bold');
		TBGCliCommand::cli_echo(TBGCliCommand::getCommandLineName() . " [");
		TBGCliCommand::cli_echo('command', 'green', 'bold');
		TBGCliCommand::cli_echo("]\n");
		TBGCliCommand::cli_echo("Type " . TBGCliCommand::getCommandLineName() . ' ');
		TBGCliCommand::cli_echo('help', 'green', 'bold');
		TBGCliCommand::cli_echo(" for more information.\n\n");
	}
	else
	{
		// Process arguments and invoke command if available
		try
		{
			TBGCliCommand::processArguments();
			$module_command = explode(':', $argv[1]);
			$module_name = (count($module_command) == 2) ? $module_command[0] : 'main';
			$command = (count($module_command) == 2) ? $module_command[1] : $module_command[0];

			if (array_key_exists($module_name, $commands) && array_key_exists($command, $commands[$module_name]))
			{
				$class = $commands[$module_name][$command];
				TBGContext::setCLIRouting($module_name, $command);
				$class->execute();
			}
			else
			{
				TBGCliCommand::cli_echo("\n");
				TBGCliCommand::cli_echo("Unknown command\n", 'red', 'bold');
				TBGCliCommand::cli_echo("Type " . TBGCliCommand::getCommandLineName() . ' ');
				TBGCliCommand::cli_echo('help', 'green', 'bold');
				TBGCliCommand::cli_echo(" for more information about the cli tool.\n\n");
			}
		}
		catch (Exception $e)
		{
			TBGCliCommand::cli_echo("\n");
			TBGCliCommand::cli_echo("The following error occured:\n", 'red', 'bold');
			TBGCliCommand::cli_echo($e->getMessage()."\n\n", 'red');
			TBGCliCommand::cli_echo("Type " . TBGCliCommand::getCommandLineName() . ' ');
			TBGCliCommand::cli_echo('help', 'green', 'bold');
			TBGCliCommand::cli_echo(" for more information about the cli tool.\n\n");
		}
	}

	return true;