<?php

require_once Path :: get_plugin_path() . 'FormLibrary/Rules/Rule.class.php';

require_once Path :: get_plugin_path() . 'FormLibrary/ElementStorage/ElementStorage.class.php';

require_once Path :: get_plugin_path() . 'FormLibrary/Elements/Element.class.php';

require_once Path :: get_plugin_path() . 'FormLibrary/Containers/Container.class.php';

require_once Path :: get_plugin_path() . 'FormLibrary/Renderer/Render.class.php';

require_once Path :: get_plugin_path() . 'FormLibrary/Elements/CustomElements/form_library_html_editor.class.php';

/*

 * Main class to create forms

 */



class FormLibrary

{

    private $name;

    private $method;

    private $action;

    private $elementStorage;

    private $renderer;



    /*

 	* Constructor for a form

 	*/

    function FormLibrary($name = null, $method = null, $action = null)

    {

        //Set name of the form if the user gave one		

        if (! empty($name))

        {

            $this->name = $name;

        }

        else

        //Set a unique name for the form

        {

            $a = "FormLibrary_" . mt_rand();

        }

        

        //Set method of the form if the user gave one		

        if (! empty($method))

        {

            $this->method = $method;

        }

        else

        //Set a unique name for the form

        {

            $this->method = "POST";

        }

        

        //Set the action of the form if the user submitted one

        if (! empty($action))

        {

            $this->action = $action;

        }

        else

        {

            $this->action = $_SERVER['PHP_SELF'];

            if (! empty($_SERVER['QUERY_STRING']))

            {

                $this->action .= '?' . $_SERVER['QUERY_STRING'];

            }

        }

        

        //Make an ElementStorage object

        $this->elementStorage = new ElementStorage();

        

        $this->renderer = new DefaultRenderer($this);

    }



    /*

	 * Add element to the form

	 */

    function add_element($element)

    {

        $this->elementStorage->add_element($element);

    }



    /*

	 * Retrieve element from the form

	 */

    function retrieve_element($element)

    {

        return $this->elementStorage->retrieve_element($element);

    }



    /*

	 * Delete element from the form

	 */

    function delete_element($element)

    {

        $this->elementStorage->delete_element($element);

    }



    /*

	 * Get the element storage of the form

	 */

    function get_element_storage()

    {

        return $this->elementStorage;

    }



    /*

	 * Check if the rules of every element are respected

	 * Server side validation

	 */

    function is_valid()

    {

        $postback = true;

        if (empty($_POST))

        {

            $postback = false;

            $valid = false;

        }

        

        $elements = $this->get_element_storage();

        

        if ($postback)

        {

            $valid = true;

            foreach ($elements->get_elements() as $element)

            {

                if (! $element->is_valid())

                    $valid = false;

            }

            return $valid;

        }

    }



    /*

	 * This function returns the HTML of the form and his elements

	 */

    function render()

    {

        $render = $this->renderer->render();

        return $render;

    }



    /*

	 * Via this function you can set a specific renderer to the form

	 */

    function set_renderer($render)

    {

        $this->renderer = $render;

    }



    /*

	 * This function returns the name of the form

	 */

    function get_name()

    {

        return $this->name;

    }



    /*

	 * This function returns the method of the form

	 */

    function get_method()

    {

        return $this->method;

    }



    /*

	 * This function returns the action of the form

	 */

    function get_action()

    {

        return $this->action;

    }



    /*

	 * This function set the action of the form

	 */

    function set_action($action)

    {

        if (! is_null($action))

        {

            $this->action = $action;

        }

    }



    /*

	 * This functions returns the input error messages

	 */

    function get_error()

    {

        return $this->error;

    }



    /*

	 * Collect all the javascript code per element

	 */

    function get_javascripts()

    {

        $code = '';

        $elements = $this->elementstorage->get_elements();

        foreach ($elements as $element)

        {

            $code .= $element->get_javascript();

        }

        return $code;

    }

}

?>