FunnelKit Cart: show the reward progress bar on the WooCommerce cart page

fkcart-rewards-on-cart-page.php

<?php
/**
 * FunnelKit Cart: show the reward progress bar on the WooCommerce cart page, kept in sync with the slide cart.
 *
 * Renders FunnelKit Cart's own rewards template above the cart table and adds it to FunnelKit Cart's
 * fragments, so every slide cart refresh replaces it too. Changes made on the cart page itself
 * (quantity, coupon) ask FunnelKit Cart to refresh.
 */

function fk_cart_page_rewards_html() {
	$html = '';
	if ( class_exists( '\FKCart\Includes\Data' ) && function_exists( 'fkcart_get_template_part' ) && \FKCart\Includes\Data::is_rewards_enabled() ) {
		$classes = array( 'fkcart-reward-product-wrap' );
		if ( filter_var( \FKCart\Includes\Data::get_value( 'reward_progress_bar_enable_animation' ), FILTER_VALIDATE_BOOLEAN ) ) {
			$classes[] = 'fkcart-animation-active';
		}

		ob_start();
		echo '<div class="' . esc_attr( implode( ' ', $classes ) ) . '">';
		fkcart_get_template_part( 'modern' === \FKCart\Includes\Data::get_value( 'reward_progress_bar_style' ) ? 'cart/rewards/design-2' : 'cart/rewards' );
		echo '</div>';
		$html = ob_get_clean();
	}

	// The wrapper is always printed so a later refresh has something to replace.
	return '<div class="fkcart-cart-page-rewards">' . $html . '</div>';
}

add_action( 'woocommerce_before_cart', function () {
	echo fk_cart_page_rewards_html(); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- FunnelKit Cart template output.
} );

add_filter( 'fkcart_fragments', function ( $fragments ) {
	$fragments['.fkcart-cart-page-rewards'] = fk_cart_page_rewards_html();

	return $fragments;
} );

add_action( 'wp_footer', function () {
	if ( ! function_exists( 'is_cart' ) || ! is_cart() ) {
		return;
	}
	?>
	<script>
	jQuery( function ( $ ) {
		$( document.body ).on( 'updated_cart_totals applied_coupon removed_coupon', function () {
			$( document.body ).trigger( 'fkcart_update_side_cart', [ false ] );
		} );
	} );
	</script>
	<?php
}, 30 );