<?php
/**
 * @package AKSRT
 */

namespace AKSRT\Settings;

defined('ABSPATH') || exit;

class PaymentRuntime {

    /**
     * Paid content / download policy.
     *
     * @return array<string,mixed>
     */
    public static function get_paid_content_settings(): array {
        $settings = Settings::get_all();
        $features = HomeCms::get_cms_features();
        $catalog_note = trim((string) ($settings['payment_paid_catalog_note'] ?? ''));
        $manual_note  = trim((string) ($settings['payment_manual_delivery_note'] ?? ''));

        $box_position = sanitize_key((string) ($settings['pay_box_position'] ?? 'top'));
        // Zibll: box_top | top | bottom | box_bottom
        if (!in_array($box_position, ['box_top', 'top', 'bottom', 'box_bottom'], true)) {
            $box_position = 'top';
        }

        return [
            'download_login'       => !empty($features['download_login']),
            'download_credit'      => !empty($features['download_credit']) && Settings::credits_enabled(),
            'download_captcha'     => !empty($features['download_captcha']),
            'default_cost'         => Settings::download_default_cost(),
            'paid_post_types'      => self::parse_slug_list((string) ($settings['payment_paid_post_types'] ?? 'post'), ['post']),
            'vip_free_download'    => !empty($settings['payment_vip_free_download']),
            'vip_exempt_roles'     => self::parse_slug_list((string) ($settings['payment_vip_exempt_roles'] ?? '')),
            'catalog_note'         => $catalog_note,
            'manual_delivery_note' => $manual_note !== '' ? $manual_note : __('付费或人工确认内容请在订单备注中记录交付方式。', 'aksrt'),
            'no_logged_in'         => !isset($settings['pay_no_logged_in']) || !empty($settings['pay_no_logged_in']),
            'free_logged_show'     => !empty($settings['pay_free_logged_show']),
            'down_alone_page'      => !empty($settings['payment_down_alone_page']),
            'display'              => [
                'mark'            => sanitize_text_field((string) ($settings['pay_mark'] ?? '付费')),
                'currency_symbol' => sanitize_text_field((string) ($settings['payment_currency_symbol'] ?? '￥')),
                'show_user'       => !isset($settings['pay_show_user']) || !empty($settings['pay_show_user']),
                'show_paycount'   => !isset($settings['pay_show_paycount']) || !empty($settings['pay_show_paycount']),
                'box_position'    => $box_position,
            ],
            'download'             => [
                'enabled'      => !empty($settings['payment_download_enable']),
                'remote'       => !isset($settings['payment_download_remote_s']) || !empty($settings['payment_download_remote_s']),
                'verify_nonce' => !isset($settings['payment_download_verify_nonce']) || !empty($settings['payment_download_verify_nonce']),
                'user_log'     => max(0, min(9999, (int) ($settings['payment_download_user_log'] ?? 50))),
                'post_log'     => max(0, min(9999, (int) ($settings['payment_download_post_log'] ?? 50))),
                'remote_size'  => max(1, (int) ($settings['payment_download_remote_size'] ?? 2048)),
                'remote_ext'   => sanitize_text_field((string) ($settings['payment_download_remote_ext'] ?? 'zip,rar,7z')),
                'alone_page'   => !empty($settings['payment_down_alone_page']),
            ],
            // Content cashier coupon (zibll coupon_post_s / coupon_desc).
            'coupon_post_s'        => !empty($settings['coupon_post_s']),
            'coupon_desc'          => sanitize_textarea_field((string) ($settings['coupon_desc'] ?? '')),
        ];
    }

    /**
     * Content coupon global switches (zibll coupon_post_s).
     *
     * @return array{enabled:bool,desc:string}
     */
    public static function get_content_coupon_settings(): array {
        $settings = self::get_paid_content_settings();
        return [
            'enabled' => !empty($settings['coupon_post_s']),
            'desc'    => (string) ($settings['coupon_desc'] ?? ''),
        ];
    }

    /**
     * Balance recharge settings (Zibll pay_balance_* contract).
     *
     * @return array<string,mixed>
     */
    public static function get_payment_recharge_settings(): array {
        $settings = Settings::get_all();

        $packages = (string) ($settings['pay_balance_product'] ?? "30|30|入门包\n98|108|推荐包");
        if (is_array($settings['pay_balance_product'] ?? null)) {
            $packages = self::format_product_lines((array) $settings['pay_balance_product']);
        }
        $desc = sanitize_textarea_field((string) ($settings['pay_balance_desc'] ?? ''));

        return [
            'enabled'         => !empty($settings['pay_balance_s']),
            'desc'            => $desc,
            'auto_to_balance' => !isset($settings['pay_auto_to_balance']) || !empty($settings['pay_auto_to_balance']),
            'packages_raw'    => $packages,
            'package_count'   => self::count_structured_lines($packages),
            'help_text'       => $desc !== '' ? $desc : __('当前支持人工确认与测试联调；接入真实网关时复用同一组字段。', 'aksrt'),
            'product'         => [
                'name'         => sanitize_text_field((string) ($settings['pay_balance_product_name'] ?? '')),
                'price'        => max(0, (float) ($settings['pay_balance_price'] ?? 0)),
                'tag'          => sanitize_text_field((string) ($settings['pay_balance_tag'] ?? '元')),
                'tag_class'    => sanitize_text_field((string) ($settings['pay_balance_tag_class'] ?? '')),
                'custom_s'     => !isset($settings['pay_balance_product_custom_s']) || !empty($settings['pay_balance_product_custom_s']),
                'custom_limit' => max(1, min(99999, (int) ($settings['pay_balance_product_custom_limit'] ?? 9999))),
            ],
            'transfer'        => [
                'enabled'        => !empty($settings['pay_balance_transfer_s']),
                'service_charge' => max(0, min(50, (int) ($settings['pay_balance_transfer_service_charge'] ?? 0))),
                'desc'           => sanitize_textarea_field((string) ($settings['pay_balance_transfer_desc'] ?? '')),
            ],
            'pass_charge'     => [
                'enabled'       => !empty($settings['pay_balance_pass_charge_s']),
                'desc'          => sanitize_textarea_field((string) ($settings['pay_balance_pass_charge_desc'] ?? '')),
                'only_password' => !empty($settings['pay_balance_pass_charge_only_password']),
            ],
            'exchange'        => [
                'enabled' => !empty($settings['pay_balance_exchange_s']),
                'rate'    => max(1, min(10000, (int) ($settings['pay_balance_exchange_rate'] ?? 100))),
                'desc'    => sanitize_textarea_field((string) ($settings['pay_balance_exchange_desc'] ?? '')),
            ],
        ];
    }

    /**
     * Dual-level VIP settings (Zibll pay_user_vip_1 / pay_user_vip_2).
     *
     * @return array<string,mixed>
     */
    public static function get_payment_vip_settings(): array {
        $settings = Settings::get_all();

        $vip1_enabled = !empty($settings['pay_user_vip_1_s']);
        $vip2_enabled = !empty($settings['pay_user_vip_2_s']);
        $enabled      = $vip1_enabled || $vip2_enabled;

        $name1 = trim((string) ($settings['pay_user_vip_1_name'] ?? ''));
        $name2 = trim((string) ($settings['pay_user_vip_2_name'] ?? ''));
        if ($name1 === '') {
            $name1 = __('一级会员', 'aksrt');
        }
        if ($name2 === '') {
            $name2 = __('二级会员', 'aksrt');
        }

        $badge = $vip2_enabled ? $name2 : ($vip1_enabled ? $name1 : __('VIP', 'aksrt'));

        $renew_price_type = sanitize_key((string) ($settings['vip_renew_price_type'] ?? 'discount'));
        if (!in_array($renew_price_type, ['same', 'discount', 'reduce'], true)) {
            $renew_price_type = 'discount';
        }

        $default_l1 = "30|59|1|month|限时|月卡\n98|199|3|month|特惠|季卡\n365|599|12|month|超值|年卡\n999|1299|0|day|永久|永久卡";
        $default_l2 = "58|99|1|month|限时|月卡\n168|299|3|month|特惠|季卡\n598|999|12|month|超值|年卡\n1299|1999|0|day|永久|永久卡";
        $products_1 = sanitize_textarea_field((string) ($settings['payment_vip_1_products'] ?? $default_l1));
        $products_2 = sanitize_textarea_field((string) ($settings['payment_vip_2_products'] ?? $default_l2));
        // Restore newlines lost only if empty after sanitize — sanitize_textarea_field keeps \n.
        if (trim($products_1) === '') {
            $products_1 = $default_l1;
        }
        if (trim($products_2) === '') {
            $products_2 = $default_l2;
        }

        $desc = sanitize_textarea_field((string) ($settings['pay_user_vip_desc'] ?? ''));
        $more = (string) ($settings['pay_user_vip_more'] ?? '');
        $allowed_equity = [
            'li'   => [],
            'ul'   => [],
            'ol'   => [],
            'strong' => [],
            'b'    => [],
            'em'   => [],
            'i'    => ['class' => true],
            'span' => ['class' => true],
            'br'   => [],
            'a'    => ['href' => true, 'target' => true, 'rel' => true, 'class' => true],
        ];

        return [
            'enabled'       => $enabled,
            'name'          => $vip1_enabled ? $name1 : $badge,
            'badge_text'    => $badge,
            'desc'          => $desc,
            'more'          => wp_kses($more, $allowed_equity + ['div' => ['class' => true], 'p' => ['class' => true]]),
            'help_text'     => $desc !== '' ? $desc : __('会员权益以免扣下载和身份展示为主，开通后立即生效。', 'aksrt'),
            'levels'        => [
                1 => [
                    'enabled'        => $vip1_enabled,
                    'name'           => $name1,
                    'desc'           => sanitize_text_field((string) ($settings['pay_user_vip_1_desc'] ?? __('尊享一级会员特权', 'aksrt'))),
                    'equity'         => wp_kses((string) (($settings['pay_user_vip_1_equity'] ?? '') !== '' ? $settings['pay_user_vip_1_equity'] : '<li>免费下载部分资源</li><li>会员专属身份标识</li><li>付费内容会员价</li>'), $allowed_equity),
                    'img_icon'       => esc_url_raw((string) ($settings['vip_1_img_icon'] ?? '')),
                    'product_s'      => !isset($settings['vip_1_product_s']) || !empty($settings['vip_1_product_s']),
                    'products_raw'   => $products_1,
                    'download_limit' => max(0, min(9999, (int) ($settings['pay_download_limit_vip_1'] ?? 0))),
                    'download_speed' => max(0, min(99999, (int) ($settings['pay_download_speed_vip_1'] ?? 0))),
                ],
                2 => [
                    'enabled'        => $vip2_enabled,
                    'name'           => $name2,
                    'desc'           => sanitize_text_field((string) ($settings['pay_user_vip_2_desc'] ?? __('尊享二级会员特权', 'aksrt'))),
                    'equity'         => wp_kses((string) (($settings['pay_user_vip_2_equity'] ?? '') !== '' ? $settings['pay_user_vip_2_equity'] : '<li>更高免费下载额度</li><li>更高等级身份标识</li><li>更多付费内容会员价</li>'), $allowed_equity),
                    'img_icon'       => esc_url_raw((string) ($settings['vip_2_img_icon'] ?? '')),
                    'product_s'      => !isset($settings['vip_2_product_s']) || !empty($settings['vip_2_product_s']),
                    'products_raw'   => $products_2,
                    'download_limit' => max(0, min(9999, (int) ($settings['pay_download_limit_vip_2'] ?? 0))),
                    'download_speed' => max(0, min(99999, (int) ($settings['pay_download_speed_vip_2'] ?? 0))),
                ],
            ],
            'benefit'       => [
                'download_limit'   => max(0, min(9999, (int) ($settings['pay_download_limit'] ?? 0))),
                'download_speed'   => max(0, min(99999, (int) ($settings['pay_download_speed'] ?? 0))),
                'pass_charge'      => !empty($settings['pay_vip_pass_charge_s']),
                'pass_charge_desc' => sanitize_textarea_field((string) ($settings['pay_vip_pass_charge_desc'] ?? '')),
                'pass_charge_only_password' => !isset($settings['pay_vip_pass_charge_only_password']) || !empty($settings['pay_vip_pass_charge_only_password']),
            ],
            'renew'         => [
                'enabled'    => !isset($settings['vip_renew']) || !empty($settings['vip_renew']),
                'desc'       => sanitize_textarea_field((string) ($settings['vip_renew_desc'] ?? '')),
                'price_type' => $renew_price_type,
                'discount'   => max(1, min(100, (int) ($settings['vip_renew_discount'] ?? 8))),
                'reduce'     => max(0, min(9999, (int) ($settings['vip_renew_reduce'] ?? 20))),
            ],
            'upgrade'       => [
                'enabled' => !isset($settings['vip_upgrade']) || !empty($settings['vip_upgrade']),
                'desc'    => sanitize_textarea_field((string) ($settings['vip_upgrade_desc'] ?? '')),
                // Multi-line upgrade product rules — must not collapse newlines.
                'product' => sanitize_textarea_field((string) ($settings['vip_upgrade_product'] ?? '')),
            ],
            'points_exchange' => [
                'enabled'      => !empty($settings['pay_vip_points_exchange_s']),
                'desc'         => sanitize_textarea_field((string) ($settings['pay_vip_points_exchange_desc'] ?? '')),
                'packages_raw' => sanitize_textarea_field((string) ($settings['payment_vip_points_packages'] ?? "1|500|30|积分月卡\n1|5000|0|积分永久")),
            ],
        ];
    }

    /**
     * @return array<string,mixed>
     */
    public static function get_payment_revenue_settings(): array {
        $settings = Settings::get_all();
        $note = trim((string) ($settings['payment_revenue_note'] ?? ''));

        return [
            'enabled'              => !empty($settings['pay_income_s']),
            'share_ratio'          => max(0, min(100, (int) ($settings['payment_revenue_share_ratio'] ?? 70))),
            'ratio_vip1'           => max(0, min(100, (int) ($settings['ratio_vip_1'] ?? 0))),
            'ratio_vip2'           => max(0, min(100, (int) ($settings['ratio_vip_2'] ?? 0))),
            'settlement_threshold' => max(0, (int) ($settings['payment_revenue_settlement_threshold'] ?? 100)),
            'cycle_days'           => max(1, min(365, (int) ($settings['payment_revenue_cycle_days'] ?? 30))),
            'points_rule'          => sanitize_textarea_field((string) ($settings['payment_revenue_points_rule'] ?? '')),
            'note'                 => $note !== '' ? $note : __('分成策略和台账结构已就绪，订单入账后自动按比例结算。', 'aksrt'),
            'display'              => [
                'desc_details' => sanitize_textarea_field((string) ($settings['pay_income_desc_details'] ?? '')),
                'desc_page'    => esc_url_raw((string) ($settings['pay_income_desc_page'] ?? '')),
            ],
        ];
    }

    /**
     * @return array<string,mixed>
     */
    public static function get_payment_affiliate_settings(): array {
        $settings = Settings::get_all();
        $note = trim((string) ($settings['pay_rebate_text_desc'] ?? ''));

        return [
            'enabled'            => !empty($settings['pay_rebate_s']),
            'ratio'              => max(0, min(100, (int) ($settings['pay_rebate_ratio'] ?? 10))),
            'window_days'        => max(1, min(365, (int) ($settings['payment_affiliate_window_days'] ?? 30))),
            'require_paid_order' => !isset($settings['payment_affiliate_require_paid_order']) || !empty($settings['payment_affiliate_require_paid_order']),
            'self_s'             => !isset($settings['pay_rebate_self_s']) || !empty($settings['pay_rebate_self_s']),
            'show_users'         => !isset($settings['pay_rebate_show_users']) || !empty($settings['pay_rebate_show_users']),
            'note'               => $note !== '' ? $note : __('返佣链路复用邀请体系，订单归因和结算自动衔接当前策略字段。', 'aksrt'),
            'user_ratio'         => [
                'user' => max(0, min(100, (int) ($settings['payment_affiliate_user_ratio'] ?? $settings['pay_rebate_ratio'] ?? 10))),
                'vip1' => max(0, min(100, (int) ($settings['pay_rebate_ratio_vip_1'] ?? 0))),
                'vip2' => max(0, min(100, (int) ($settings['pay_rebate_ratio_vip_2'] ?? 0))),
            ],
            'poster'             => [
                'enabled' => !isset($settings['pay_rebate_poster_s']) || !empty($settings['pay_rebate_poster_s']),
                'img'     => esc_url_raw((string) ($settings['pay_rebate_poster_img'] ?? '')),
                'title'   => sanitize_text_field((string) ($settings['pay_rebate_poster_title'] ?? '')),
                'desc'    => sanitize_text_field((string) ($settings['pay_rebate_poster_desc'] ?? '')),
            ],
            'text'               => [
                'desc'          => sanitize_textarea_field((string) ($settings['pay_rebate_text_desc'] ?? '')),
                'details_title' => sanitize_text_field((string) ($settings['pay_rebate_text_details_title'] ?? '')),
                'details'       => sanitize_textarea_field((string) ($settings['pay_rebate_text_details'] ?? '')),
                'discount'      => sanitize_text_field((string) ($settings['pay_rebate_text_discount'] ?? '')),
            ],
        ];
    }

    /**
     * @return array<string,mixed>
     */
    public static function get_payment_gateway_settings(): array {
        $settings = Settings::get_all();
        $mode = sanitize_key((string) ($settings['payment_gateway_mode'] ?? 'manual_review'));
        if (!in_array($mode, ['manual_review', 'test_gateway', 'adapter_ready'], true)) {
            $mode = 'manual_review';
        }

        $help_text = trim((string) ($settings['payment_gateway_help'] ?? ''));
        $gateway_keys = ['wechat', 'alipay', 'paypal', 'stripe', 'balance', 'card_pass', 'xunhupay', 'xhpay', 'payjs', 'epay', 'vmq', 'codepay'];
        $gateways = [];
        foreach ($gateway_keys as $gw) {
            $gateways[$gw] = !empty($settings["payment_{$gw}_enabled"]);
        }

        return [
            'mode'            => $mode,
            'test_enabled'    => !isset($settings['payment_gateway_test_enabled']) || !empty($settings['payment_gateway_test_enabled']),
            'manual_review'   => !isset($settings['payment_gateway_manual_review']) || !empty($settings['payment_gateway_manual_review']),
            'callback_secret' => sanitize_text_field((string) ($settings['payment_gateway_callback_secret'] ?? '')),
            'help_text'       => $help_text !== '' ? $help_text : __('未接真实支付网关时，建议使用测试网关或人工确认模式完成联调。', 'aksrt'),
            'gateways'        => $gateways,
            'xunhupay'        => [
                'appid'     => sanitize_text_field((string) ($settings['xunhupay_appid'] ?? '')),
                'appsecret' => sanitize_text_field((string) ($settings['xunhupay_appsecret'] ?? '')),
            ],
            'xhpay'           => [
                'mchid'     => sanitize_text_field((string) ($settings['xhpay_mchid'] ?? '')),
                'alipay_v2' => sanitize_text_field((string) ($settings['xhpay_alipay_v2'] ?? '')),
                'wx_h5'     => sanitize_text_field((string) ($settings['xhpay_wx_h5'] ?? '')),
            ],
            'payjs'           => [
                'mchid' => sanitize_text_field((string) ($settings['payjs_mchid'] ?? '')),
                'key'   => sanitize_text_field((string) ($settings['payjs_key'] ?? '')),
            ],
            'epay'            => [
                'apiurl' => esc_url_raw((string) ($settings['epay_apiurl'] ?? '')),
                'pid'    => sanitize_text_field((string) ($settings['epay_pid'] ?? '')),
                'key'    => sanitize_text_field((string) ($settings['epay_key'] ?? '')),
            ],
            'alipay_extra'    => [
                'return_url' => esc_url_raw((string) ($settings['alipay_return_url'] ?? '')),
                'notify_url' => esc_url_raw((string) ($settings['alipay_notify_url'] ?? '')),
            ],
        ];
    }

    /**
     * Order display / checkout policy (Zibll pay_* + AKSRT order ops).
     *
     * @return array<string,mixed>
     */
    public static function get_order_settings(): array {
        $s = Settings::get_all();

        $expiry = max(5, min(1440, (int) ($s['payment_order_expiry'] ?? 30)));
        $cookie_day = max(1, min(31, (int) ($s['pay_cookie_day'] ?? 15)));
        $max_minutes = max(5, min(1440, (int) ($s['payment_order_max_minutes'] ?? 30)));

        $box_position = sanitize_key((string) ($s['pay_box_position'] ?? 'top'));
        if (!in_array($box_position, ['box_top', 'top', 'bottom', 'box_bottom'], true)) {
            $box_position = 'top';
        }

        $status_keys = ['pending', 'paid', 'completed', 'cancelled', 'refunded', 'refunding', 'processing'];
        $status_defaults = ['待支付', '已支付', '已完成', '已取消', '已退款', '退款中', '处理中'];
        $status_texts = [];
        foreach ($status_keys as $i => $key) {
            $val = trim((string) ($s["payment_order_status_{$key}"] ?? ''));
            $status_texts[$key] = $val !== '' ? $val : $status_defaults[$i];
        }

        return [
            'prefix'            => sanitize_text_field((string) ($s['payment_order_prefix'] ?? 'AKSRT')),
            'expiry'            => $expiry,
            'show_user'         => !isset($s['pay_show_user']) || !empty($s['pay_show_user']),
            'show_paycount'     => !isset($s['pay_show_paycount']) || !empty($s['pay_show_paycount']),
            'no_logged_in'      => !isset($s['pay_no_logged_in']) || !empty($s['pay_no_logged_in']),
            'cookie_day'        => $cookie_day,
            'no_logged_remind'  => sanitize_textarea_field((string) ($s['pay_no_logged_remind'] ?? '')),
            'wait_float'        => !isset($s['pay_wait_float_s']) || !empty($s['pay_wait_float_s']),
            'order_max_minutes' => $max_minutes,
            'mark'              => sanitize_text_field((string) ($s['pay_mark'] ?? '付费')),
            'box_position'      => $box_position,
            'free_logged_show'  => !empty($s['pay_free_logged_show']),
            'show_ip'           => !empty($s['payment_show_ip']),
            'show_device'       => !empty($s['payment_show_device']),
            'show_order_no'     => !isset($s['payment_show_order_no']) || !empty($s['payment_show_order_no']),
            'show_create_time'  => !isset($s['payment_show_create_time']) || !empty($s['payment_show_create_time']),
            'show_pay_time'     => !isset($s['payment_show_pay_time']) || !empty($s['payment_show_pay_time']),
            'status_texts'      => $status_texts,
            'service'           => [
                'text'   => sanitize_textarea_field((string) ($s['pay_service'] ?? '')),
                'icon'   => sanitize_text_field((string) ($s['pay_service_icon'] ?? '')),
                'value'  => sanitize_text_field((string) ($s['pay_service_value'] ?? '')),
                'qq'     => sanitize_text_field((string) ($s['pay_service_qq'] ?? '')),
                'wechat' => esc_url_raw((string) ($s['pay_service_wechat'] ?? '')),
            ],
        ];
    }

    /**
     * @return array<string,mixed>
     */
    public static function get_card_pass_settings(): array {
        $s = Settings::get_all();

        $type = sanitize_key((string) ($s['card_pass_type'] ?? 'balance'));
        if (!in_array($type, ['balance', 'vip', 'credits'], true)) {
            $type = 'balance';
        }

        $success_msg = trim((string) ($s['card_pass_success_msg'] ?? ''));
        $fail_msg = trim((string) ($s['card_pass_fail_msg'] ?? ''));

        return [
            'enabled'     => !empty($s['card_pass_enabled']),
            'desc'        => sanitize_textarea_field((string) ($s['card_pass_desc'] ?? '')),
            'type'        => $type,
            'prefix'      => sanitize_text_field((string) ($s['card_pass_prefix'] ?? 'AK')),
            'length'      => max(8, min(32, (int) ($s['card_pass_length'] ?? 16))),
            'batch_size'  => max(1, min(500, (int) ($s['card_pass_batch_size'] ?? 50))),
            'max_redeem'  => max(1, min(100, (int) ($s['card_pass_max_redeem'] ?? 1))),
            'expiry_days' => max(0, (int) ($s['card_pass_expiry'] ?? 0)),
            'amount'      => max(1, min(9999, (int) ($s['card_pass_amount'] ?? 10))),
            'vip_days'    => max(1, min(3650, (int) ($s['card_pass_vip_days'] ?? 30))),
            'credits'     => max(0, min(99999, (int) ($s['card_pass_credits'] ?? 0))),
            'redeem_page' => esc_url_raw((string) ($s['card_pass_redeem_page'] ?? '')),
            'success_msg' => $success_msg !== '' ? $success_msg : __('兑换成功！', 'aksrt'),
            'fail_msg'    => $fail_msg !== '' ? $fail_msg : __('卡号无效或已过期', 'aksrt'),
        ];
    }

    /**
     * @return array{min_amount:int,service_charge_rate:int,text:string}
     */
    public static function get_withdrawal_settings(): array {
        $s = Settings::get_all();

        return [
            'min_amount'          => max(1, min(99999, (int) ($s['pay_rebate_withdraw_lowest_money'] ?? 50))),
            'service_charge_rate' => max(0, min(50, (int) ($s['withdraw_service_charge'] ?? 0))),
            'text'                => sanitize_textarea_field((string) ($s['pay_rebate_withdraw_text_details'] ?? '')),
        ];
    }

    /**
     * Whether a registered adapter is admin-enabled.
     * Maps gateway ids (wechatpay) to schema toggles (payment_wechat_enabled).
     */
    public static function is_gateway_enabled(string $gateway_id): bool {
        $settings = Settings::get_all();
        $map = [
            'alipay'     => 'payment_alipay_enabled',
            'wechatpay'  => 'payment_wechat_enabled',
            'paypal'     => 'payment_paypal_enabled',
            'stripe'     => 'payment_stripe_enabled',
            'balance'    => 'payment_balance_enabled',
            'card_pass'  => 'payment_card_pass_enabled',
            'xunhupay'   => 'payment_xunhupay_enabled',
            'xhpay'      => 'payment_xhpay_enabled',
            'payjs'      => 'payment_payjs_enabled',
            'epay'       => 'payment_epay_enabled',
            'vmq'        => 'payment_vmq_enabled',
            'codepay'    => 'payment_codepay_enabled',
        ];
        $key = $map[$gateway_id] ?? '';
        if ($key === '') {
            return false;
        }
        if ($gateway_id === 'balance') {
            return !empty($settings['payment_balance_enabled']) && !empty($settings['pay_balance_s']);
        }
        return !empty($settings[$key]);
    }

    /**
     * @param string[] $fallback
     * @return string[]
     */
    private static function parse_slug_list(string $raw, array $fallback = []): array {
        $items = preg_split('/[\s,]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $normalized = [];
        foreach ((array) $items as $item) {
            $slug = sanitize_key((string) $item);
            if ($slug !== '' && !in_array($slug, $normalized, true)) {
                $normalized[] = $slug;
            }
        }
        return !empty($normalized) ? $normalized : $fallback;
    }

    private static function count_structured_lines(string $raw): int {
        $lines = preg_split('/[\r\n]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $count = 0;
        foreach ((array) $lines as $line) {
            if (trim((string) $line) !== '') {
                $count++;
            }
        }
        return $count;
    }

    /**
     * @param array<int,mixed> $products
     */
    private static function format_product_lines(array $products): string {
        $lines = [];
        foreach ($products as $row) {
            if (!is_array($row)) {
                continue;
            }
            $price = $row['pay_price'] ?? $row['price'] ?? '';
            $value = $row['value'] ?? $row['balance'] ?? $price;
            $title = $row['title'] ?? $row['name'] ?? '';
            $lines[] = $price . '|' . $value . '|' . $title;
        }
        return implode("\n", $lines);
    }
}