<?php

class WPDesk_Flexible_Shipping_Pro_Woocommerce_Form_Field {

	public function hooks() {
		add_filter( 'woocommerce_form_field_select_multiple', array(
			$this,
			'woocommerce_form_field_select_multiple'
		), 10, 4 );
	}

	function woocommerce_form_field_select_multiple( $field, $key, $args, $value ) {
		$defaults = array(
			'type'              => 'text',
			'label'             => '',
			'description'       => '',
			'placeholder'       => '',
			'maxlength'         => false,
			'required'          => false,
			'autocomplete'      => false,
			'id'                => $key,
			'class'             => array(),
			'label_class'       => array(),
			'input_class'       => array(),
			'return'            => false,
			'options'           => array(),
			'custom_attributes' => array(),
			'validate'          => array(),
			'default'           => '',
			'autofocus'         => '',
			'priority'          => '',
		);

		$args = wp_parse_args( $args, $defaults );
		$args = apply_filters( 'woocommerce_form_field_args', $args, $key, $value );

		if ( $args['required'] ) {
			$args['class'][] = 'validate-required';
			$required        = ' <abbr class="required" title="' . esc_attr__( 'required', 'woocommerce' ) . '">*</abbr>';
		} else {
			$required = '';
		}

		if ( is_string( $args['label_class'] ) ) {
			$args['label_class'] = array( $args['label_class'] );
		}

		if ( is_null( $value ) ) {
			$value = $args['default'];
		}

		// Custom attribute handling
		$custom_attributes         = array();
		$args['custom_attributes'] = array_filter( (array) $args['custom_attributes'] );

		if ( $args['maxlength'] ) {
			$args['custom_attributes']['maxlength'] = absint( $args['maxlength'] );
		}

		if ( ! empty( $args['autocomplete'] ) ) {
			$args['custom_attributes']['autocomplete'] = $args['autocomplete'];
		}

		if ( true === $args['autofocus'] ) {
			$args['custom_attributes']['autofocus'] = 'autofocus';
		}

		if ( ! empty( $args['custom_attributes'] ) && is_array( $args['custom_attributes'] ) ) {
			foreach ( $args['custom_attributes'] as $attribute => $attribute_value ) {
				$custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $attribute_value ) . '"';
			}
		}

		if ( ! empty( $args['validate'] ) ) {
			foreach ( $args['validate'] as $validate ) {
				$args['class'][] = 'validate-' . $validate;
			}
		}

		$field           = '';
		$label_id        = $args['id'];
		$sort            = $args['priority'] ? $args['priority'] : '';
		$field_container = '<p class="form-row %1$s" id="%2$s" data-priority="' . esc_attr( $sort ) . '">%3$s</p>';

		$options = $field = '';

		if ( ! empty( $args['options'] ) ) {
			foreach ( $args['options'] as $option_key => $option_text ) {
				if ( '' === $option_key ) {
					// If we have a blank option, select2 needs a placeholder
					if ( empty( $args['placeholder'] ) ) {
						$args['placeholder'] = $option_text ? $option_text : __( 'Choose an option', 'woocommerce' );
					}
					$custom_attributes[] = 'data-allow_clear="true"';
				}
				if ( is_array( $value ) ) {
					foreach ( $value as $val ) {
						$selected = selected( $val, $option_key, false );
						if ( $selected ) {
							break;
						}
					}
				} else {
					$selected = selected( $value, $option_key, false );
				}
				$options .= '<option value="' . esc_attr( $option_key ) . '" ' . $selected . '>' . esc_attr( $option_text ) . '</option>';
			}

			$field .= '<select multiple name="' . esc_attr( $key ) . '" id="' . esc_attr( $args['id'] ) . '" class="select ' . esc_attr( implode( ' ', $args['input_class'] ) ) . '" ' . implode( ' ', $custom_attributes ) . ' data-placeholder="' . esc_attr( $args['placeholder'] ) . '">
                ' . $options . '
            </select>';
		}


		if ( ! empty( $field ) ) {
			$field_html = '';

			if ( $args['label'] && 'checkbox' != $args['type'] ) {
				$field_html .= '<label for="' . esc_attr( $label_id ) . '" class="' . esc_attr( implode( ' ', $args['label_class'] ) ) . '">' . $args['label'] . $required . '</label>';
			}

			$field_html .= $field;

			if ( $args['description'] ) {
				$field_html .= '<span class="description">' . esc_html( $args['description'] ) . '</span>';
			}

			$container_class = esc_attr( implode( ' ', $args['class'] ) );
			$container_id    = esc_attr( $args['id'] ) . '_field';
			$field           = sprintf( $field_container, $container_class, $container_id, $field_html );
		}

		if ( $args['return'] ) {
			return $field;
		} else {
			echo $field;
		}
	}

}