<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Payment;

class ReceiptMailer {

	/**
	 * Email a numbered receipt to the student. Returns false when there is no
	 * recipient.
	 */
	public function send( Payment $payment, ?\WP_User $student ): bool {
		if ( null === $student || '' === (string) $student->user_email ) {
			return false;
		}

		$subject = sprintf(
			/* translators: %s: receipt number */
			__( 'Payment receipt %s', 'unsupervised-schedular' ),
			(string) $payment->receiptNumber
		);

		if ( $payment->taxAmount > 0 ) {
			$body = sprintf(
				/* translators: 1: currency, 2: subtotal, 3: HST rate, 4: HST amount, 5: total, 6: receipt number */
				__( "Thank you. We have recorded your payment.\n\nSubtotal: %1\$s %2\$s\nHST (%3\$s%%): %1\$s %4\$s\nTotal: %1\$s %5\$s\n\nReceipt: %6\$s", 'unsupervised-schedular' ),
				$payment->currency,
				number_format( $payment->amount, 2 ),
				number_format( $payment->taxRate, 2 ),
				number_format( $payment->taxAmount, 2 ),
				number_format( $payment->total(), 2 ),
				(string) $payment->receiptNumber
			);
		} else {
			$body = sprintf(
				/* translators: 1: amount, 2: currency, 3: receipt number */
				__( "Thank you. We have recorded your payment of %1\$s %2\$s.\n\nReceipt: %3\$s", 'unsupervised-schedular' ),
				number_format( $payment->total(), 2 ),
				$payment->currency,
				(string) $payment->receiptNumber
			);
		}

		return (bool) wp_mail( $student->user_email, $subject, $body );
	}
}