<?php
/**
 * Class EE_Checkbox_Dropdown_Selector_Input
 * configures a set of checkbox inputs that are initially hidden
 * by what appears to be a cross between a button and a select input
 *
 * @package       Event Espresso
 * @subpackage    core
 * @author        Brent Christensen, Mike Nelson
 *
 */
class EE_Checkbox_Dropdown_Selector_Input extends EE_Form_Input_With_Options_Base
{

    /**
     * @var string text to display on the select button itself
     */
    protected $_select_button_text;

    /**
     * @param array $answer_options
     * @param array $input_settings
     */
    public function __construct($answer_options, $input_settings = array())
    {
        $this->_select_button_text = EEH_Array::is_set(
            $input_settings,
            'select_button_text',
            esc_html__('Select', 'event_espresso')
        );
        $display_strategy = new EE_Checkbox_Dropdown_Selector_Display_Strategy();
        $this->_set_display_strategy($display_strategy);
        $this->load_iframe_assets($display_strategy);
        $this->_add_validation_strategy(
            new EE_Many_Valued_Validation_Strategy(
                array(
                    new EE_Enum_Validation_Strategy(
                        isset($input_settings['validation_error_message'])
                            ? $input_settings['validation_error_message']
                            : null
                    ),
                )
            )
        );
        $this->_multiple_selections = true;
        parent::__construct($answer_options, $input_settings);
    }

    /*
     * Returns the text to display in the select button
     */
    public function select_button_text()
    {
        return $this->_select_button_text;
    }

    /*
     * add css and js for iframes
     */
    protected function load_iframe_assets(EE_Checkbox_Dropdown_Selector_Display_Strategy $display_strategy)
    {
        add_filter(
            'FHEE__EED_Ticket_Selector__ticket_selector_iframe__css',
            array($display_strategy, 'iframe_css')
        );
        add_filter(
            'FHEE__EED_Ticket_Selector__ticket_selector_iframe__js',
            array($display_strategy, 'iframe_js')
        );
        add_filter(
            'FHEE__EventEspresso_modules_events_archive_EventsArchiveIframe__display__css',
            array($display_strategy, 'iframe_css')
        );
        add_filter(
            'FHEE__EventEspresso_modules_events_archive_EventsArchiveIframe__display__js',
            array($display_strategy, 'iframe_js')
        );
    }
}
