class Welcart
{
    /**
     * Displays custom fields meta.
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param array  $data
     * @param string $custom_field
     * @param string $position
     * @return void
     */
    public function uscesCustomFieldInput($data, $custom_field, $position) {
        $label = 'custom_' . $custom_field;

        $meta = usces_has_custom_field_meta($custom_field);

        $html = '';
        if (!empty($meta) && is_array($meta)) {
            foreach ($meta as $key => $entry) {
                if ($custom_field === 'order' || $entry['position'] === $position) {
                    $name = $entry['name'];
                    $means = $entry['means'];
                    $essential = $entry['essential'];
                    $value = '';
                    if (is_array($entry['value'])) {
                        foreach ($entry['value'] as $k => $v) {
                            $value .= $v . "\n";
                        }
                    }
                    $value = usces_change_line_break($value);

                    $e = ($essential == 1) ? '<em>' . __('*', 'usces') . '</em>' : '';
                    /**
                     * Mirrored Welcart filter
                     *
                     * @ignore
                     */
                    $customlabel = apply_filters('usces_filter_custom_field_input_label', null, $key, $entry);
                    $html .= '
                        <tr class="customkey_' . $key . '">
                        <th scope="row">' . $e . esc_html($name) . $customlabel . '</th>';
                    /**
                     * Mirrored Welcart filter
                     *
                     * @ignore
                     */
                    $html .= apply_filters('usces_filter_custom_field_input_td', '<td colspan="2">', $key, $entry);
                    switch ($means) {
                        case 0: // シングルセレクト
                        case 1: // マルチセレクト NOTE: multi-select isnt an option for custom fields
                            $selects = explode("\n", $value);
                            $multiple = ($means == 0) ? '' : ' multiple';
                            $multiple_array = ($means == 0) ? '' : '[]';
                            $html .= '<select
                                v-model="customFields[\'' . esc_attr($key) . '\'].value"
                                name="' . $label . '[' . esc_attr($key) . ']' . $multiple_array . '"
                                class="iopt_select"' . $multiple . '
                            >';
                            if ($essential == 1) {
                                $html .= '
                                    <option value="#NONE#">' . __('Choose', 'usces') . '</option>';
                            }
                            foreach ($selects as $v) {
                                $selected = (isset($data[$label][$key]) && $data[$label][$key] == $v) ? ' selected' : '';
                                $html .= '
                                    <option value="' . esc_attr($v) . '"' . $selected . '>' . esc_html($v) . '</option>';
                            }
                            $html .= '
                                </select>';
                            break;
                        case 2: // テキスト
                            $html .= '<input
                                type="text"
                                v-model="customFields[\'' . esc_attr($key) . '\'].value"
                                name="' . $label . '[' . esc_attr($key) . ']"
                            />';
                            break;
                        case 3: // ラジオボタン
                            $selects = explode("\n", $value);
                            foreach ($selects as $v) {
                                $checked = (isset($data[$label][$key]) && $data[$label][$key] == $v) ? ' checked' : '';
                                $html .= '<label for="' . $label . '[' . esc_attr($key) . '][' . esc_attr($v) . ']" class="iopt_label">';
                                $html .= '<input
                                    type="radio"
                                    v-model="customFields[\'' . esc_attr($key) . '\'].value"
                                    name="' . $label . '[' . esc_attr($key) . ']"
                                    id="' . $label . '[' . esc_attr($key) . '][' . esc_attr($v) . ']"
                                    value="' . esc_attr($v) . '"' . $checked . '
                                >';
                                $html .= esc_html($v) . '</label>';
                            }
                            break;
                        case 4: // チェックボックス
                            $selects = explode("\n", $value);
                            foreach ($selects as $v) {
                                if (isset($data[$label][$key]) && is_array($data[$label][$key])) {
                                    $checked = (isset($data[$label][$key]) && array_key_exists($v, $data[$label][$key])) ? ' checked' : '';
                                } else {
                                    $checked = (isset($data[$label][$key]) && $data[$label][$key] == $v) ? ' checked' : '';
                                }
                                $html .= '<label for="' . $label . '[' . esc_attr($key) . '][' . esc_attr($v) . ']" class="iopt_label">';
                                $html .= '<input
                                    type="checkbox"
                                    v-model="customFields[\'' . esc_attr($key) . '\'].value[\'' . esc_attr($v) . '\']"
                                    name="' . $label . '[' . esc_attr($key) . '][' . esc_attr($v) . ']"
                                    id="' . $label . '[' . esc_attr($key) . '][' . esc_attr($v) . ']"
                                    value="' . esc_attr($v) . '"' . $checked . '
                                >';
                                $html .= esc_html($v) . '</label>';
                            }
                            break;
                        case 5: // Text-area
                            $html .= '<textarea
                                v-model="customFields[\'' . esc_attr($key) . '\'].value"
                                name="' . $label . '[' . esc_attr($key) . ']"
                                class="iopt_textarea"
                            ></textarea>';
                            break;
                    }
                    /**
                     * Mirrored Welcart filter
                     *
                     * @ignore
                     */
                    $html .= apply_filters('usces_filter_custom_field_input_value', null, $key, $entry) . '</td>';
                    $html .= '
                        </tr>';
                }
            }
        }
        if (!empty($html)) {
            $html = '<table class="customer_form" id="' . esc_attr('custom_' . $custom_field) . '">' . $html . '</table>';
        }
        /**
         * Filters the custom fields HTML shown on the Quickpay page
         *
         * @param string $html
         * @param array  $data
         * @param string $custom_field
         * @param string $position
         */
        $html = apply_filters('wcexaap_filter_custom_field_input', $html, $data, $custom_field, $position);

        echo stripslashes($html);
    }
}