<?php 

namespace frdl\Lint;

class Php
{

 protected $cacheDir = null;	
	
 public function __construct($cacheDir = null){
    $this->cacheDir = $cacheDir;
 }
	
	
  public function setCacheDir($cacheDir = null){
	  $this->cacheDir = $cacheDir;
	  return $this;
 }
	
	
 public function getCacheDir(){
	 if((null!==$this->cacheDir && !empty($this->cacheDir)) && is_dir($this->cacheDir)){
	    return $this->cacheDir;
	 }
	 
   if(!isset($_ENV['FRDL_HPS_CACHE_DIR']))$_ENV['FRDL_HPS_CACHE_DIR']=getenv('FRDL_HPS_CACHE_DIR');	 

	  $this->cacheDir = 
		(  isset($_ENV['FRDL_HPS_CACHE_DIR']) && !empty($_ENV['FRDL_HPS_CACHE_DIR']))
		  ? $_ENV['FRDL_HPS_CACHE_DIR'] 
                   : \sys_get_temp_dir() . \DIRECTORY_SEPARATOR . \get_current_user(). \DIRECTORY_SEPARATOR . 'cache' . \DIRECTORY_SEPARATOR ;	  
	  
	 $this->cacheDir = rtrim($this->cacheDir, '\\/'). \DIRECTORY_SEPARATOR.'lint';
	 
	 if(!is_dir($this->cacheDir)){
		mkdir($this->cacheDir, 0755, true); 
	 }
	 
	 
	  return $this->cacheDir;
 }
	
 public function lintString($source){
	 $cachedir =  $this->getCacheDir();
	 if(!is_writable($cachedir)){
		mkdir($cachedir, 0755, true); 
	 }	 
	 $tmpfname = tempnam($cachedir, 'frdl_lint_php');
	 if(empty($tmpfname))return false;
	 file_put_contents($tmpfname, $source);
	 $valid = $this->checkSyntax($tmpfname, false);
	 unlink($tmpfname);
	 return $valid;
 }

 public function lintFile($fileName, $checkIncludes = true){	   
	// $o = new self;
	// $o->setCacheDir($o->getCacheDir());
	 return call_user_func_array([$this, 'checkSyntax'], [$fileName, $checkIncludes]);
 }
	
 public static function lintStringStatic($source){
	 $o = new self;
	 $tmpfname = tempnam($o->getCacheDir(), 'frdl_lint_php');
	 file_put_contents($tmpfname, $source);
	 $valid = $o->checkSyntax($tmpfname, false);
	 unlink($tmpfname);
	 return $valid;
 }

 public static function lintFileStatic($fileName, $checkIncludes = true){	 	 
	 $o = new self;
	 $o->setCacheDir($o->getCacheDir());
	 return call_user_func_array([$o, 'checkSyntax'], [$fileName, $checkIncludes]);
 }   
	
	
 public static function __callStatic($name, $arguments){
	 $o = new self;
	 return call_user_func_array([$o, $name], $arguments);
 }	
	
	
 public function checkSyntax($fileName, $checkIncludes = false){
        // If it is not a file or we can't read it throw an exception
      // if(!is_file($fileName) || !is_readable($fileName))
	  if(!file_exists($fileName))
            throw new \Exception("Cannot read file ".$fileName);
       
        // Sort out the formatting of the filename
       $fileName = realpath($fileName);
       
        // Get the shell output from the syntax check command
        $output = shell_exec(sprintf('%s -l "%s"',  (new \Webfan\Helper\PhpBinFinder())->find(), $fileName));
       
        // Try to find the parse error text and chop it off
        $syntaxError = preg_replace("/Errors parsing.*$/", "", $output, -1, $count);
       
        // If the error text above was matched, throw an exception containing the syntax error
        if($count > 0)
            //throw new \Exception(trim($syntaxError));
			return 'Errors parsing '.print_r([$output, $count],true);
       
        // If we are going to check the files includes
        if($checkIncludes)
        {
            foreach($this->getIncludes($fileName) as $include)
            {
                // Check the syntax for each include
				$tCheck = $this->checkSyntax($include, $checkIncludes);
               if(true!==$tCheck){
				 return $tCheck;   
			   }
            }
        }
	 
	  return true;
    }
   
   public function getIncludes($fileName)
    {
        // NOTE that any file coming into this function has already passed the syntax check, so
        // we can assume things like proper line terminations
           
        $includes = array();
        // Get the directory name of the file so we can prepend it to relative paths
        $dir = dirname($fileName);
       
        // Split the contents of $fileName about requires and includes
        // We need to slice off the first element since that is the text up to the first include/require
        $requireSplit = array_slice(preg_split('/require|include/i', file_get_contents($fileName)), 1);
       
        // For each match
        foreach($requireSplit as $string)
        {
            // Substring up to the end of the first line, i.e. the line that the require is on
            $string = substr($string, 0, strpos($string, ";"));
           
            // If the line contains a reference to a variable, then we cannot analyse it
            // so skip this iteration
            if(strpos($string, "$") !== false)
                continue;
           
            // Split the string about single and double quotes
            $quoteSplit = preg_split('/[\'"]/', $string);
           
            // The value of the include is the second element of the array
            // Putting this in an if statement enforces the presence of '' or "" somewhere in the include
            // includes with any kind of run-time variable in have been excluded earlier
            // this just leaves includes with constants in, which we can't do much about
            if($include = $quoteSplit[1])
            {
                // If the path is not absolute, add the dir and separator
                // Then call realpath to chop out extra separators
                if(strpos($include, ':') === FALSE)
                    $include = realpath($dir.\DIRECTORY_SEPARATOR.$include);
           
                array_push($includes, $include);
            }
        }
       
        return $includes;
    }
	
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODMwMjQyNTI4NjU2MDE3NSA1MzQ5NzkzOTI4MjMzMDIwIDY0MTA4NTU0NjU4MjU1MTU=