<?php
 
 namespace GitList;
 
 class Config
 {
     protected $data;
 

     public function __construct($data = array())

     {
         $this->data = $data;
     }
 

     public static function fromFile($file)
     {

         if (!file_exists($file)) {

             die(sprintf('Please, create the %1$s file.', $file));

         }

         $data = parse_ini_file($file, true);

         $config = new static($data);
         $config->validateOptions();

         return $config;

     }

 
     public function get($section, $option)
     {
         if (!array_key_exists($section, $this->data)) {
             return false;
         }
 
         if (!array_key_exists($option, $this->data[$section])) {
             return false;
         }
 
         return $this->data[$section][$option];
     }
 
     public function getSection($section)
     {
         if (!array_key_exists($section, $this->data)) {
             return false;
         }
 
         return $this->data[$section];
     }
 
     public function set($section, $option, $value)
     {
         $this->data[$section][$option] = $value;
     }
 
     protected function validateOptions()
     {

         $repositories = $this->get('git', 'repositories');
 
         $atLeastOneOk = false;
         $atLeastOneWrong = false;

         foreach ($repositories as $directory) {
             if (!$directory || !is_dir($directory)) {
                 $atLeastOneWrong = true;

             } else {

                 $atLeastOneOk = true;

             }

         }

         if (!$atLeastOneOk) {

             die('Please, edit the config file and provide your repositories directory');

         }

         if ($atLeastOneWrong) {

             die('One or more of the supplied repository paths appears to be wrong. Please, check the config file');

         }

     }

 }