gistfile1.aw

<?php

add_filter(
	'blocksy:pro:custom-post-type:output-content',
	function ($content, $id) {
		$BLOCKSY_THANK_YOU_PAGE_ID = 2478;

		if ($id !== $BLOCKSY_THANK_YOU_PAGE_ID) {
			return $content;
		}

		global $wp;

		if (! isset($wp->query_vars['order-received'])) {
			return $content;
		}

		$order = false;

		$order_id = $wp->query_vars['order-received'];

		$order_id  = apply_filters( 'woocommerce_thankyou_order_id', absint( $order_id ) );
		$order_key = apply_filters( 'woocommerce_thankyou_order_key', empty( $_GET['key'] ) ? '' : wc_clean( wp_unslash( $_GET['key'] ) ) ); // WPCS: input var ok, CSRF ok.

		if ($order_id > 0) {
			$order = wc_get_order($order_id);

			if (
				! $order
				||
				! hash_equals($order->get_order_key(), $order_key)
			) {
				$order = false;
			}
		}

		if (! $order) {
			return $content;
		}

		$billing_first_name = $order->get_billing_first_name();
		$coupon = new WC_Coupon();
		$coupon->set_code( $billing_first_name . '10' ); // Coupon code will contain billing first name and 10. For example: John20
		$coupon->set_amount( 10 ); // Discount amount
		$coupon->set_discount_type( 'percent' ); // Discount type can be 'fixed_cart', 'percent' or 'fixed_product', defaults to 'fixed_cart'
		$coupon->set_usage_limit( 1 ); // usage limit

		$coupon->save();

		$coupon_content = '<p>Täname ostu eest. Tänutäheks kingime sulle personaalse sooduskupongi: ' . $billing_first_name . '10 mis annab sulle 10% soodustust järgmiselt ostult.</p>';

		return $coupon_content . $content;
	},
	10,
	2
);