<?php
/**
 * WebAppCommand class file.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.yiiframework.com/
 * @copyright Copyright &copy; 2008-2012 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yii\console\controllers;

use yii\console\Controller;

/**
 * This command creates an Yii Web application at the specified location.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
 */
class AppController extends Controller
{
	private $_rootPath;

	/**
	 * Generates Yii application at the path specified via appPath parameter.
	 *
	 * @param string $appPath the directory where the new application will be created.
	 * If the directory does not exist, it will be created. After the application
	 * is created, please make sure the directory has enough permissions.
	 * @return integer the exit status
	 */
	public function actionIndex($appPath)
	{
		$path=strtr($appPath,'/\\',DIRECTORY_SEPARATOR);
		if(strpos($path,DIRECTORY_SEPARATOR)===false)
			$path='.'.DIRECTORY_SEPARATOR.$path;
		$dir=rtrim(realpath(dirname($path)),'\\/');
		if($dir===false || !is_dir($dir))
			$this->usageError("The directory '$path' is not valid. Please make sure the parent directory exists.");
		if(basename($path)==='.')
			$this->_rootPath=$path=$dir;
		else
			$this->_rootPath=$path=$dir.DIRECTORY_SEPARATOR.basename($path);
		if($this->confirm("Create a Web application under '$path'?"))
		{
			$sourceDir=realpath(dirname(__FILE__).'/../views/webapp');
			if($sourceDir===false)
				die("\nUnable to locate the source directory.\n");
			$list=$this->buildFileList($sourceDir,$path);
			$list['index.php']['callback']=array($this,'generateIndex');
			$list['index-test.php']['callback']=array($this,'generateIndex');
			$list['protected/tests/bootstrap.php']['callback']=array($this,'generateTestBoostrap');
			$list['protected/yiic.php']['callback']=array($this,'generateYiic');
			$this->copyFiles($list);
			@chmod($path.'/assets',0777);
			@chmod($path.'/protected/runtime',0777);
			@chmod($path.'/protected/data',0777);
			@chmod($path.'/protected/data/testdrive.db',0777);
			@chmod($path.'/protected/yiic',0755);
			echo "\nYour application has been created successfully under {$path}.\n";
		}
	}

	public function generateIndex($source,$params)
	{
		$content=file_get_contents($source);
		$yii=realpath(dirname(__FILE__).'/../../yii.php');
		$yii=$this->getRelativePath($yii,$this->_rootPath.DIRECTORY_SEPARATOR.'index.php');
		$yii=str_replace('\\','\\\\',$yii);
		return preg_replace('/\$yii\s*=(.*?);/',"\$yii=$yii;",$content);
	}

	public function generateTestBoostrap($source,$params)
	{
		$content=file_get_contents($source);
		$yii=realpath(dirname(__FILE__).'/../../yiit.php');
		$yii=$this->getRelativePath($yii,$this->_rootPath.DIRECTORY_SEPARATOR.'protected'.DIRECTORY_SEPARATOR.'tests'.DIRECTORY_SEPARATOR.'bootstrap.php');
		$yii=str_replace('\\','\\\\',$yii);
		return preg_replace('/\$yiit\s*=(.*?);/',"\$yiit=$yii;",$content);
	}

	public function generateYiic($source,$params)
	{
		$content=file_get_contents($source);
		$yiic=realpath(dirname(__FILE__).'/../../yiic.php');
		$yiic=$this->getRelativePath($yiic,$this->_rootPath.DIRECTORY_SEPARATOR.'protected'.DIRECTORY_SEPARATOR.'yiic.php');
		$yiic=str_replace('\\','\\\\',$yiic);
		return preg_replace('/\$yiic\s*=(.*?);/',"\$yiic=$yiic;",$content);
	}

	protected function getRelativePath($path1,$path2)
	{
		$segs1=explode(DIRECTORY_SEPARATOR,$path1);
		$segs2=explode(DIRECTORY_SEPARATOR,$path2);
		$n1=count($segs1);
		$n2=count($segs2);

		for($i=0;$i<$n1 && $i<$n2;++$i)
		{
			if($segs1[$i]!==$segs2[$i])
				break;
		}

		if($i===0)
			return "'".$path1."'";
		$up='';
		for($j=$i;$j<$n2-1;++$j)
			$up.='/..';
		for(;$i<$n1-1;++$i)
			$up.='/'.$segs1[$i];

		return 'dirname(__FILE__).\''.$up.'/'.basename($path1).'\'';
	}
}