<?php if ( ! defined( 'ABSPATH' ) ) { die; } // Cannot access directly.
/**
 *
 * Field: select
 *
 * @since 1.0.0
 * @version 1.0.0
 *
 */
if( ! class_exists( 'CSF_Field_select' ) ) {
  class CSF_Field_select extends CSF_Fields {

    public function __construct( $field, $value = '', $unique = '', $where = '', $parent = '' ) {
      parent::__construct( $field, $value, $unique, $where, $parent );
    }

    public function render() {

      $args = wp_parse_args( $this->field, array(
        'chosen'      => false,
        'multiple'    => false,
        'placeholder' => '',
      ) );

      $this->value = ( is_array( $this->value ) ) ? $this->value : array_filter( (array) $this->value );

      echo $this->field_before();

      if( ! empty( $this->field['options'] ) ) {

        $options          = ( is_array( $this->field['options'] ) ) ? $this->field['options'] : $this->field_data( $this->field['options'] );
        $multiple_name    = ( $args['multiple'] ) ? '[]' : '';
        $multiple_attr    = ( $args['multiple'] ) ? ' multiple="multiple"' : '';
        $chosen_rtl       = ( is_rtl() ) ? ' chosen-rtl' : '';
        $chosen_attr      = ( $args['chosen'] ) ? ' class="csf-chosen'. $chosen_rtl .'"' : '';
        $placeholder_attr = ( $args['chosen'] && $args['placeholder'] ) ? ' data-placeholder="'. $args['placeholder'] .'"' : '';

        if( ! empty( $options ) ) {

          echo '<select name="'. $this->field_name( $multiple_name ) .'"'. $multiple_attr . $chosen_attr . $placeholder_attr . $this->field_attributes() .'>';

          if( $args['placeholder'] && empty( $args['multiple'] ) ) {
            if( ! empty( $args['chosen'] ) ) {
              echo '<option value=""></option>';
            } else {
              echo '<option value="">'. $args['placeholder'] .'</option>';
            }
          }

          foreach ( $options as $option_key => $option ) {

            if( is_array( $option ) && ! empty( $option ) ) {

              echo '<optgroup label="'. $option_key .'">';

              foreach( $option as $sub_key => $sub_value ) {
                $selected = ( in_array( $sub_key, $this->value ) ) ? ' selected' : '';
                echo '<option value="'. $sub_key .'" '. $selected .'>'. $sub_value .'</option>';
              }

              echo '</optgroup>';

            } else {
              $selected = ( in_array( $option_key, $this->value ) ) ? ' selected' : '';
              echo '<option value="'. $option_key .'" '. $selected .'>'. $option .'</option>';
            }

          }

          echo '</select>';

        } else {

          echo ( ! empty( $this->field['empty_message'] ) ) ? $this->field['empty_message'] : esc_html__( 'No data provided for this option type.', 'csf' );

        }

      }

      echo $this->field_after();

    }

  }
}