1 <?php
  2 
  3 /*
  4  * This file is part of the Icybee/Installer package.
  5  *
  6  * (c) Olivier Laviale <olivier.laviale@gmail.com>
  7  *
  8  * For the full copyright and license information, please view the LICENSE
  9  * file that was distributed with this source code.
 10  */
 11 
 12 namespace Icybee\Installer;
 13 
 14 use ICanBoogie\Errors;
 15 use ICanBoogie\I18n;
 16 use ICanBoogie\I18n\FormattedString;
 17 
 18 use Brickrouge\Alert;
 19 use Brickrouge\Button;
 20 
 21 class Requirements implements \IteratorAggregate
 22 {
 23     static public function get()
 24     {
 25         return new static;
 26     }
 27 
 28     protected $title;
 29     protected $requirements;
 30 
 31     public function __construct($title, array $requirements)
 32     {
 33         $this->title = $title;
 34         $this->requirements = $requirements;
 35     }
 36 
 37     public function __invoke(Errors $errors)
 38     {
 39         foreach ($this->requirements as $requirement)
 40         {
 41             $requirement($errors);
 42         }
 43 
 44         return !$errors->count();
 45     }
 46 
 47     public function getIterator()
 48     {
 49         return new \ArrayIterator($this->requirements);
 50     }
 51 
 52     public function render()
 53     {
 54         $html = '';
 55         $errors = new Errors();
 56 
 57         foreach ($this->requirements as $id => $requirement)
 58         {
 59             $errors->clear();
 60             $requirement($errors);
 61 
 62             if (!$errors->count())
 63             {
 64                 continue;
 65             }
 66 
 67             $html .= $requirement->render($errors);
 68         }
 69 
 70         if (!$html)
 71         {
 72             return;
 73         }
 74 
 75         $action = new Button("Check again", array('class' => 'btn-primary'));
 76 
 77         return <<<EOT
 78 <div class="requirements">
 79     <h2>{$this->title}</h2>
 80     $html
 81     <p>{$action}</p>
 82 </div>
 83 EOT;
 84     }
 85 }
 86 
 87 class WelcomeRequirements extends Requirements
 88 {
 89     public function __construct()
 90     {
 91         parent::__construct
 92         (
 93             I18n\t("Before we can continue, you need to check the following things:"), array
 94             (
 95                 'repository' => new RepositoryRequirement,
 96                 'user_config' => new UserConfigRequirement,
 97                 'pdo_drivers' => new PDODriversRequirement
 98             )
 99         );
100     }
101 }
102 
103 class InstallRequirements extends Requirements
104 {
105     static public function get()
106     {
107         return new static
108         (
109             I18n\t("Before we can continue, you need to check the following things:"), array
110             (
111                 'core_config' => new CoreConfigRequirement
112             )
113         );
114     }
115 }
116 
117 /**
118  * Representation of a requirement.
119  */
120 abstract class Requirement
121 {
122     public $title;
123     public $description;
124 
125     abstract public function __invoke(Errors $errors);
126 
127     /**
128      * Renders the requirement along with the specified errors.
129      *
130      * @param Errors $errors
131      *
132      * @return string
133      */
134     public function render(Errors $errors)
135     {
136         $alert = new Alert($errors, array(Alert::UNDISSMISABLE => true));
137 
138         return <<<EOT
139 <div class="requirement">
140     <h3 class="requirement-title">{$this->title}</h3>
141     <div class="requirement-description">{$this->description}</div>
142     {$alert}
143 </div>
144 EOT;
145     }
146 }

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