Funnelkit Checkout: Radio button conditional field

gistfile1.txt

class WFACP_Conditional_field_tmp {

	private $conditional_field = [];

	public function __construct() {


		/* Conditional fields */
		$this->conditional_field = [
			'tax_exempt_yn' => [  /* tax_exempt_yn*/
				[
					'value'  => 'yes',          /* tax_exempt_yn*/
					'fields' => [ 'tax_exempt_yn_yes' ],  /*tax_exempt_yn_yes*/
					'enable' => true,
				],
				[
					'value'  => 'no',
					'fields' => [ '' ],
					'enable' => true,
				],

			]
		];
		add_action( 'wfacp_after_checkout_page_found', [ $this, 'wfacp_add_script' ] );
		add_filter( 'woocommerce_checkout_fields', [ $this, 'wfacp_remove_required' ], 10, 1 );

		add_filter( 'wfacp_custom_fields', [ $this, 'wfacp_remove_field' ], 10, 1 );

	}


	/* Conditional field Logic*/

	function wfacp_remove_required( $fields ) {

		foreach ( $this->conditional_field as $field => $conditional_fields ) {
			foreach ( $conditional_fields as $conditional_field ) {
				if ( 'checked' == $conditional_field['value'] ) {
					$conditional_field['value'] = 1;
				}

				if ( ! isset( $_REQUEST[ $field ] ) ) {
					continue;
				}
				if ( isset( $_REQUEST[ $field ] ) && ( false == $conditional_field['enable'] || $_REQUEST[ $field ] == $conditional_field['value'] ) ) {
					continue;
				}
				foreach ( $conditional_field['fields'] as $field_id ) {
					$section = '';
					if ( isset( $fields['billing'][ $field_id ] ) ) {
						$section = 'billing';
					} elseif ( isset( $fields['shipping'][ $field_id ] ) ) {
						$section = 'shipping';
					} elseif ( isset( $fields['advanced'][ $field_id ] ) ) {
						$section = 'advanced';
					} else {
						if ( strpos( $field_id, 'billing' ) ) {
							$section = 'billing';
						} elseif ( strpos( $field_id, 'shipping' ) ) {
							$section = 'shipping';
						}
						if ( isset( $fields[ $section ] ) ) {
							$billing_fields = $fields[ $section ];
							foreach ( $billing_fields as $key => $field ) {
								unset( $fields[ $section ][ $key ]['required'] );
							}
						}
					}
					if ( ! empty( $section ) ) {
						unset( $fields[ $section ][ $field_id ]['required'] );
					}
				}
			}
		}

		return $fields;
	}

	function wfacp_remove_field( $fields ) {
		foreach ( $this->conditional_field as $field => $conditional_fields ) {
			foreach ( $conditional_fields as $conditional_field ) {

				if ( ! isset( $_REQUEST[ $field ] ) || ( false == $conditional_field['enable'] || $_REQUEST[ $field ] == $conditional_field['value'] ) ) {
					continue;
				}
				foreach ( $conditional_field['fields'] as $field_id ) {
					if ( ! empty( $fields['advanced'][ $field_id ] ) ) {
						unset( $fields['advanced'][ $field_id ] );
					}
				}
			}
		}

		return $fields;
	}

	function wfacp_add_script() {
		add_action( 'wp_footer', [ $this, 'wfacp_conditional_field_script' ] );
	}

	function wfacp_conditional_field_script() {

		$fields = json_encode( $this->conditional_field );
		?>
        <style>
            div.conditional_field, p.conditional_field {
                display: none !important;
            }

            .wfacp_dropdown option, .wfacp_dropdown select {
                text-transform: capitalize;
            }
        </style>
        <script>
            jQuery(document).ready(function ($) {
                var conditional_fields =<?php echo $fields;?>;

                $.each(conditional_fields, function (field, values) {

                    check_fiel(values,field);

                    $(document.body).on('change', "input[name='" + field + "']", function () {
                        check_fiel(values,field);
                    });


                });
                function check_fiel(values,field){
                    $.each(values, function (key, value) {
                        displayConditionalField(field, value, 'null');
                    });
                }

                function displayConditionalField(id, values, val) {

                    $.each(values.fields, function (index, field) {
                        var show = false;
                        if (val == 'null') {

                            val = $("input[name='" + id + "']:checked").val();
                        }

                        if (val == values.value) {
                            show = true;
                        }

                        if (show == true) {
                            $('#' + field + '_field').removeClass('conditional_field');
                        } else {

                            $('#' + field + '_field').addClass('conditional_field');
                        }
                    });
                }
            });
        </script>
		<?php
	}


}

new WFACP_Conditional_field_tmp();