<?php
/*
* @package		Tech Fry Library
* @license		https://www.gnu.org/licenses/gpl-3.0.en.html
*/

namespace TechFry\Library\View\Back;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\HTML\HTMLHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Toolbar\Toolbar;
use Joomla\CMS\Toolbar\ToolbarHelper;

class TfViewForm extends TfView
{
    public $view_type = 'form';
    
    // View class for backend forms
    protected $form;
  	protected $item;
  	protected $state;
  
    // Define in view
    public $main_fields = array('title', 'alias');
    public $loadData = true;
    public $fileUpload = false;
    
    public $fieldsets;
    
    public $first_fieldset;
    
    public $is_new;
    
    public $icon = 'fas fa-edit';

    public $action;
    public $layout;
    public $tmpl;
    public $item_id;

    public function display($tpl = null)
    {
        $this->initiate_form();

        // Add Toolbar
        if ($this->getLayout() !== 'modal') 
        {
            //$this->addToolbar();
        } 
        else 
        {
            $this->addModalToolbar();
        }

		// Display the template
		parent::display($tpl);
    }
    
    public function initiate_form()
    {
        parent::initiate_view();
        
        $this->addTemplatePath(JPATH_LIBRARIES . '/techfry/html/backform');
        
        // Get data from model
        $this->form = $this->get('Form');
        
        if ($this->loadData)
        {
            $this->item = $this->get('Item');
            $this->state = $this->get('State');
        }

        if ($this->getLayout() === 'modalreturn') 
        {
            parent::display($tpl);

            return;
        }
        
        $this->fieldsets = $this->form->getFieldsets();

        $this->first_fieldset = array_keys($this->fieldsets)[0];
    }
    
    protected function addToolbar()
    {
      	Factory::getApplication()->getInput()->set('hidemainmenu', true);

        $this->is_new = ($this->loadData) ? ($this->item->id == 0) : 0;

        parent::addToolbar();

        //$this->toolbar->inlinehelp();
    }

    protected function addModalToolbar()
    {
        $toolbar = $this->getDocument()->getToolbar();

        $toolbar->apply($this->view_name . '.apply');

        $toolbar->save($this->view_name . '.save');

        $toolbar->cancel($this->view_name . '.cancel');
    }
    
    // Fucntion to start displaying list layout
    public function start_form_layout()
    {
        $wa = $this->document->getWebAssetManager();
        $wa->useScript('keepalive')
            ->useScript('form.validate');

        $input = Factory::getApplication()->getInput();

        // In case of modal
        $isModal = $input->get('layout') == 'modal';
        $this->layout = $isModal ? 'modal' : 'edit';
        $tmpl = $input->get('tmpl');
        $this->tmpl = $tmpl ? '&tmpl=' . $tmpl : '';

        $this->item_id = $this->loadData ? (int) $this->item->id : 0;
        
        $this->get_action();

        echo '<form action="' . Route::_($this->action) . '" method="post"';
        if ($this->fileUpload)
        {
            echo ' enctype="multipart/form-data"';
        }
        echo ' name="adminForm" id="item-form" class="form-validate">';
        
        // Title and Alias
        if (!empty($this->main_fields))
        {
            echo '<div class="row title-alias form-vertical mb-3">';
                foreach ($this->main_fields as $main_field)
                {
                    echo '<div class="col-12 col-md-6">';
                        echo $this->form->renderField($main_field);
                    echo '</div>';
                }
            echo '</div>';
        }
        
        echo '<div class="main-card">';
        echo HTMLHelper::_('uitab.startTabSet', 'myTab', array('active' => $this->first_fieldset));
    }
    
    // Function to finisy displaying list layout
    public function end_form_layout()
    {
        echo HTMLHelper::_('uitab.endTabSet');
        
        echo '<input type="hidden" name="task" value="' . $this->view_name . '.edit" />';

        echo HTMLHelper::_('form.token');
        
        echo '</div>';

        echo '</form>';
    }
    
    // Add tab in edit layout with form fieldset
    public function add_tab_form($name)
    {
       	// $name - fieldset name
      
      	echo HTMLHelper::_('uitab.addTab', 'myTab', $name, Text::_($this->fieldsets[$name]->label));
            
            $this->render_fieldset($this->fieldsets[$name]);
        
        echo HTMLHelper::_('uitab.endTab');
    }
    
    // Add tab in edit layout with sub template file
    public function add_tab_tmpl($name, $text)
    {
        echo HTMLHelper::_('uitab.addTab', 'myTab', $name, Text::_($text));
            
            echo $this->loadTemplate($name);
            
        echo HTMLHelper::_('uitab.endTab');
    }
    
    // Add tab in edit layout with two fieldsets
    public function add_tab_forms($names, $text, $cols = array(9, 3))
    {
        echo HTMLHelper::_('uitab.addTab', 'myTab', $names[0], Text::_($text));
        
        echo '<div class="row">';
        
            foreach ($names as $key => $name)
            {
                echo '<div class="col-lg-' . $cols[$key] . '">';
                
                    $this->render_fieldset($this->fieldsets[$name]);
                
                echo '</div>';
            }
		
	    echo '</div>';
        
        echo HTMLHelper::_('uitab.endTab');
    }
    
    // Function to add all form fieldsets
    public function add_fieldsets()
    {
        foreach ($this->fieldsets as $name => $fieldSet)
        {
            echo HTMLHelper::_('uitab.addTab', 'myTab', $name, Text::_($fieldSet->label));

                $this->render_fieldset($fieldSet);
            
            echo HTMLHelper::_('uitab.endTab');
        }
    }
    
    // Renders fieldset legend (label), description and all fields
    public function render_fieldset($fieldset)
    {
        if (isset($fieldset->label) && !empty($fieldset->label))
        {
            echo '<fieldset class="options-form">';
            echo '<legend>' . Text::_($fieldset->label) . '</legend>';
        }
        
        if (isset($fieldset->description) && !empty($fieldset->description))
        {
            echo '<div class="alert alert-info">';
                echo '<span class="icon-info-circle" aria-hidden="true"></span> ' . Text::_($fieldset->description);
            echo '</div>';
        }
        
        echo '<div class="form-horizontal">';
            echo $this->form->renderFieldset($fieldset->name);
        echo '</div>';
        
        if (isset($fieldset->label) && !empty($fieldset->label))
        {
            echo '</fieldset>';   
        }
    }

    public function get_action()
    {
        $this->action = 'index.php?option=' . $this->option . '&layout=' . $this->layout . $this->tmpl . '&id=' . $this->item_id;
    }
}