defined( 'JPATH_PLATFORM' ) or die;

JFormHelper::loadFieldClass( 'repeatable' );

/**
 * This Field Provides Fixes for Joomla's Repeatable Field.
 * 
 * Fix 1: JRepeatable Requires Fieldsets to Work But in the Global Config These are Displayed Outside of the Repeatable Field so Need Hiding.
 * Fix 2: The Modal Close Button Doubles up the Fields (so we hide it till it's fixed). See: http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_id=8103&tracker_item_id=32311
 * Fix 3: On Clicking a New Row if There is a Chosen List Field it Requires Re-Initialisation Due a Joomla Bug Which Fires: resetChosen() in it's media/system/js/repeatable-uncompressed.js Which Fails.
 * Fix 4: On Modal Popup Bootstrap/Joomla Radio Fields Aren't Initialised.
 */
class JFormFieldRepeatableFix extends JFormFieldRepeatable
{
    /**
     * The form field type.
     *
     * @var     string
     */
    protected $type = 'repeatablefix';

    /**
     * Document Object.
     *
     * @var     object
     */
    protected $doc;

    /**
     * Method to attach a JForm object to the field.
     *
     * @param   SimpleXMLElement  $element  The SimpleXMLElement object representing the <field /> tag for the form field object.
     * @param   mixed             $value    The form field value to validate.
     * @param   string            $group    The field name group control value. This acts as as an array container for the field.
     *                                      For example if the field has name="foo" and the group value is set to "bar" then the
     *                                      full field name would end up being "bar[foo]".
     *
     * @return  boolean  True on success.
     */
    public function setup( SimpleXMLElement $element, $value, $group = null )
    {
        // Initiate Parent First so we Have Our Element Data Configured
        if( !parent::setup( $element, $value, $group ) )
        {
            return false;
        }//end if

        $this->doc = JFactory::getDocument();

        // If We Have the Fieldset Name Provide Hacks/Fixes :s
        if( $this->fieldname )
        {
            $this->addCSS();
        }//end if

        $this->addJS();

        return true;
    }//end function

    /**
     * Method to Add Field CSS.
     *
     * @return  void
     */
    protected function addCSS()
    {
        // Setup CSS
        $css    = array();
        // Fix 1
        $css[]  = '.nav [href="#' . $this->fieldname . '_modal"] { display : none; }';
        // Fix 2
        $css[]  = '#' . $this->id . '_modal_table + .form-actions .btn-link { display : none; }';

        $this->doc->addStyleDeclaration( implode( "\n", $css ) );
    }//end function

    /**
     * Method to Add Field JS.
     *
     * @note    Logic "Borrowed" From Joomla, With Customisations.
     *
     * @see     administrator/templates/isis/js/template.js
     *
     * @return  void
     */
    protected function addJS()
    {
        // Fix 3
        $js = 'jQuery( document ).ready( function( $ )
                {
                    var $table = $( "#' . $this->id . '_modal_table" );

                    $table.on( "click", ".add", function( ev )
                    {
                        // Row Not Created Yet
                        $( this ).delay( 0 ).queue( function()
                        {
                            var $list = $table.find( "select:not(.chzn-done)" ).last();

                            if( $list.length )
                            {
                                // Chosen Incorrectly Referencing Original Element so Reset Elements to Current/Fake Elements
                                $list.data().chosen.container = $( "<div>" );
                                $list.data().chosen.form_field_jq = $list;

                                // Destroy & Rebirth
                                $list.data().chosen.destroy().chosen();
                            }//end if

                            $( this ).dequeue;
                        });
                    });
                });';

        $this->doc->addScriptDeclaration( $js );

        // Fix 4
        $js = "jQuery( document ).ready( function( $ )
                {
                    // Delegate Original Radio Logic
                    $( document ).on( 'click', '.btn-group label:not(.active)', function( ev )
                    {
                        var label = $( this );
                        var input = $( '#' + label.attr( 'for' ) );

                        if( !input.prop( 'checked' ) )
                        {
                            label.closest( '.btn-group' ).find( 'label' ).removeClass( 'active btn-success btn-danger btn-primary' );

                            if( input.val() == '' )
                            {

                                label.addClass( 'active btn-primary' );
                            }
                            else if( input.val() == 0 )
                            {
                                label.addClass( 'active btn-danger' );
                            }
                            else
                            {
                                label.addClass( 'active btn-success' );
                            }//end if

                            input.prop( 'checked', true );
                            input.trigger( 'change' );
                        }
                    });

                    // Delegate Default Setting
                    $( document ).on( 'click', '#" . $this->id . "_button', function( ev )
                    {
                        $( '.btn-group input' ).each( function()
                        {
                            var input = $( this );
                            var label = $( 'label[for=' + input.attr( 'id' ) + ']' );

                            label.removeClass( 'active btn-success btn-danger btn-primary' );

                            if( $( this ).prop( 'checked' ) )
                            {
                                label.addClass( 'active' );

                                if( input.val() == '' )
                                {
                                    label.addClass( 'btn-primary' );
                                }
                                else if( input.val() == 0 )
                                {
                                    label.addClass( 'btn-danger' );
                                }
                                else
                                {
                                    label.addClass( 'btn-success' );
                                }//end if
                            }//end if
                        });
                    });
                });";

        $this->doc->addScriptDeclaration( $js );
    }//end function
}//end class