class PayAndShip extends Container
{
    /**
     * Amazon checkout details component instance
     *
     * @var AmazonCheckoutDetails
     */
    private $checkoutDetailsComp;

    /**
     * Unloads `deliveryForm` component if an address error exists
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param bool $load
     * @return bool
     */
    protected function filterLoadDeliveryForm($load) {
        if (!empty($this->checkoutDetailsComp->getAddressError())) {
            return false;
        }
        return $load;
    }

    /**
     * Returns `AmazonCheckoutDetails` component with appropriate checkout session ID
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return AmazonCheckoutDetails
     */
    protected function getAmazonCheckoutDetailsComponent() {
        $this->checkoutDetailsComp = new AmazonCheckoutDetails($this->module, $_REQUEST['amazonCheckoutSessionId']);
        return $this->checkoutDetailsComp;
    }

    /**
     * Returns `PurchaseButton` component
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return PurchaseButton
     */
    protected function getPurchaseButtonComponent() {
        return new PurchaseButton('payandship', $this->module->getChargeType(), 'quickpay');
    }

    /**
     * Includes `delivery_info_script.php` if no address error
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return void
     */
    protected function afterTemplateInclude() {
        if (empty($this->checkoutDetailsComp->getAddressError())) {
            wcexaap_include_delivery_info_script();
        }
    }

    /**
     * Displays address error at top of page
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param string $emessage
     * @return string
     */
    public function filterTemplateTopErrorMessage($emessage) {
        if (!empty($this->checkoutDetailsComp->getAddressError())) {
            $emessage = $this->checkoutDetailsComp->getAddressErrorMessageBox(
                'updateShippingAddressButton1',
                'template-top'
            );
        }
        return $emessage;
    }

    /**
     * Displays address error at bottom of page
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param string $emessage
     * @return string
     */
    public function filterTemplateBottomErrorMessage($emessage) {
        if (!empty($this->checkoutDetailsComp->getAddressError())) {
            $emessage = $this->checkoutDetailsComp->getAddressErrorMessageBox(
                'updateShippingAddressButton2',
                'template-bottom'
            );
        }
        return $emessage;
    }

    /**
     * Binds address change to our custom address error buttons
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return void
     */
    protected function loadCustomAssets() {
        if (!empty($this->checkoutDetailsComp->getAddressError())) {
            (new ChangeActions($this->module))->load(
                $this->checkoutDetailsComp->getCheckoutSessionId(),
                ['updateShippingAddressButton1', 'updateShippingAddressButton2']
            );
        }
    }
}