class ConfirmPage extends PCP
{
    const SCRIPT_SLUG = 'wcex_linepay_purchase_button';

    /**
     * Settlement module
     *
     * @var LinePay
     */
    protected $module;

    /**
     * Invokes functions/methods after fees are set
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return void
     */
    public function onFeesSet() {
        $html = $this->confirmPageWrapper();
        if (empty($html)) {
            $this->load();
        } else {
            $this->loadErrorAssets();
        }
    }

    /**
     * Loads css for error message
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return void
     */
    public function loadErrorAssets() {
        wp_enqueue_style(
            'linepay-confirmpage-error',
            WCEX_LINEPAY_PLUGIN_URL . '/src/Views/ConfirmPage/errormessage.css',
            [],
            WCEX_LINEPAY_VERSION
        );
    }

    /**
     * Variables to inject into our script
     *
     * LINE Pay requires フリガナ name3 and name4
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @inheritDoc
     * @return array
     */
    public function makeJSvars() {
        $furigana_required = false;
        $name3 = '';
        $name4 = '';
        if (usces_have_shipped() === true) {
            $del = $_SESSION['usces_entry']['delivery'];
            if (strtoupper($del['country']) === 'JP') {
                $furigana_required = true;
                $name3 = isset($del['name3']) ? $del['name3'] : '';
                $name4 = isset($del['name4']) ? $del['name4'] : '';
            }
        }
        $vars = array_merge(
            Generic\WelcartUtils::makeJSvars(),
            $this->module->getScriptInjectionVars(),
            [
                'amountZero' => $_SESSION['usces_entry']['order']['total_full_price'] <= 0,
                'backButtonText' => __('Back to payment method page.', 'usces'),
                'extraNamesRequired' => $furigana_required === true && (empty($name3) || empty($name4)),
            ]
        );

        return $vars;
    }

    /**
     * Confirm page form wrapper for LINE Pay. Displays error message if LINE Pay options
     * validation fails
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    protected function confirmPageWrapper() {
        $opts = $this->module->getActingOpts();

        $display = false;
        if (empty($opts['channel_id'])) {
            $display = true;
        }
        if (empty($opts['channel_secret_key'])) {
            $display = true;
        }

        if ($this->module->ready() === false || $display === true) {
            /**
             * Welcart filter
             *
             * @ignore
             */
            $btntext = apply_filters('usces_filter_confirm_prebutton_value', __('Back to payment method page.', 'usces'));
            ob_start();
            ?>
            <form
                id="purchase_form"
                action="<?php echo USCES_CART_URL ?>"
                method="post"
                onKeyDown="if (event.keyCode == 13) {return false;}"
            >
                <div class="send">
                    <input
                        name="backDelivery"
                        type="submit"
                        id="back_button"
                        class="back_to_delivery_button"
                        value="<?php echo $btntext; ?>"
                    />
                </div>
                <p class="linepay error-message">
                    <?php
                    echo __('LINE Pay is currently unavailable. Please contact the seller for more info.', 'wcex_linepay')
                    ?>
                </p>
            <?php
            $html = ob_get_contents();
            ob_end_clean();

            return $html;
        }

        return '';
    }

    /**
     * Wrapper for overridden filter method.
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param string $html
     * @param array  $payments
     * @param string $acting_flag
     * @param int    $rand
     * @param string $purchase_disabled
     * @return string
     */
    protected function filterConfirmPagePayButton($html, $payments, $acting_flag, $rand, $purchase_disabled) {
        $errorhtml = $this->confirmPageWrapper();
        if (!empty($errorhtml)) {
            return $errorhtml;
        }

        ob_start();
        ?>
        <form id="purchase_form" action="<?php echo esc_url(USCES_CART_URL); ?>" method="post" onKeyDown="if (event.keyCode == 13) {return false;}">
            <div id="<?php echo Config\Constants::REACT_DOM_NODE ?>"></div>
        <?php
        $html = ob_get_contents();
        ob_end_clean();

        return $html;
    }

    /**
     * Called if on confirm page and options validation succeeds.
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return void
     */
    protected function load() {
        $assetsmap = include(WCEX_LINEPAY_PLUGIN_DIR . '/dist/js/Views/ConfirmPage/App.asset.php');
        wp_enqueue_script(
            self::SCRIPT_SLUG,
            WCEX_LINEPAY_PLUGIN_URL . '/dist/js/Views/ConfirmPage/App.js',
            $assetsmap['dependencies'],
            $assetsmap['version'],
            true
        );
        wp_localize_script(
            self::SCRIPT_SLUG,
            Config\Constants::SCRIPTS_GLOBAL_VAR_NAME,
            $this->makeJSvars()
        );
        wp_set_script_translations(self::SCRIPT_SLUG, 'wcex_linepay', WCEX_LINEPAY_LANGDIR);
    }
}