<?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();

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

        return [
            // 下载门槛永远支持积分购买模式（不再由页面开关控制）。
            'download_credit'      => Settings::credits_enabled(),
            'default_cost'         => Settings::download_default_cost(),
            // 付费内容仅文章。
            'paid_post_types'      => ['post'],
            'vip_free_download'    => false,
            'vip_exempt_roles'     => [],
            'catalog_note'         => '',
            'manual_delivery_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'     => !isset($settings['pay_free_logged_show']) || !empty($settings['pay_free_logged_show']),
            'down_alone_page'      => !empty($settings['down_alone_page']),
            'display'              => [
                'mark'            => sanitize_text_field((string) ($settings['pay_mark'] ?? '付费')),
                'currency_symbol' => sanitize_text_field((string) ($settings['pay_currency_mark'] ?? '￥')),
                'currency_unit'   => sanitize_text_field((string) ($settings['pay_currency_unit'] ?? '元')),
                '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'    => $box_position,
            ],
            'download'             => [
                'enabled'      => true,
                'remote'       => !isset($settings['down_remote_to_local_s']) || !empty($settings['down_remote_to_local_s']),
                'verify_nonce' => !isset($settings['down_verify_nonce']) || !empty($settings['down_verify_nonce']),
                'remote_size'  => max(0, (int) ($settings['down_remote_to_local_size'] ?? 2048)),
                'remote_ext'   => sanitize_text_field((string) ($settings['down_remote_to_local_ext'] ?? 'zip,rar,7z')),
                'alone_page'   => !empty($settings['down_alone_page']),
            ],
            // 内容收银台优惠码：全局开关 + 默认说明。
            'coupon_post_s'        => !empty($settings['coupon_post_s']),
            'coupon_desc'          => sanitize_textarea_field((string) ($settings['coupon_desc'] ?? '')),
        ];
    }

    /**
     * Content coupon global switches (legacy 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 (legacy pay_balance_* contract).
     *
     * @return array<string,mixed>
     */
    public static function get_payment_recharge_settings(): array {
        $settings = Settings::get_all();

        // 该选项可能存字符串（旧格式）或数组（结构化保存）：先判类型再转换，
        // 避免对数组做强转触发 "Array to string conversion" 警告。
        $raw_packages = $settings['pay_balance_product'] ?? null;
        $packages     = is_array($raw_packages)
            ? self::format_product_lines($raw_packages)
            : (string) ($raw_packages ?? "30|30|入门包\n98|108|推荐包");
        $desc = sanitize_textarea_field((string) ($settings['pay_balance_desc'] ?? ''));

        return [
            'enabled'         => !empty($settings['pay_balance_s']),
            'withdraw_enabled' => !empty($settings['pay_balance_withdraw_s']),
            'desc'            => $desc,
            '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'        => self::money_decimal($settings['pay_balance_price'] ?? '0.00', '0.00'),
                'tag'          => sanitize_text_field((string) ($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) ($settings['pay_balance_transfer_desc'] ?? '')),
            ],
            'pass_charge'     => [
                // 三个独立开关：各类型卡密只进入各自的购买弹窗（收款接口同款拆分）。
                'balance' => [
                    'enabled'       => !empty($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']),
                ],
                'credits' => [
                    'enabled'       => !empty($settings['points_pass_exchange_s']),
                    'desc'          => sanitize_textarea_field((string) ($settings['points_pass_exchange_desc'] ?? '')),
                    'only_password' => !empty($settings['points_pass_exchange_only_password']),
                ],
                'vip'     => [
                    'enabled'       => !empty($settings['pay_vip_pass_charge_s']),
                    'desc'          => sanitize_textarea_field((string) ($settings['pay_vip_pass_charge_desc'] ?? '')),
                    // 默认非单密码（卡号+密码），对齐参考主题 pay_vip_pass_charge_only_password 默认 false。
                    'only_password' => !empty($settings['pay_vip_pass_charge_only_password']),
                ],
            ],
            'points_exchange' => [
                'enabled'          => !empty($settings['pay_balance_points_exchange_s']),
                'rate'             => max(1, min(10000, (int) ($settings['pay_balance_points_exchange_rate'] ?? 100))),
                'min_points'       => max(1, min(10000000, (int) ($settings['pay_balance_points_exchange_min_points'] ?? 100))),
                'daily_max_points' => max(1, min(10000000, (int) ($settings['pay_balance_points_exchange_daily_max_points'] ?? 100000))),
                'desc'             => sanitize_textarea_field((string) ($settings['pay_balance_points_exchange_desc'] ?? '')),
                'products_raw'     => is_array($settings['pay_points_product'] ?? null)
                    ? self::format_points_product_lines($settings['pay_points_product'])
                    : (string) ($settings['pay_points_product'] ?? ''),
            ],
        ];
    }

    /**
     * Resolve a configured VIP icon, falling back to the bundled level asset.
     */
    private static function get_vip_icon_url(int $level, string $configured): string {
        $configured = esc_url_raw($configured);
        if ($configured !== '') {
            return $configured;
        }

        $filename = 'vip-' . $level . '.svg';
        if (defined('AKSRT_DIR') && is_file(AKSRT_DIR . '/assets/img/user/vip/' . $filename)) {
            return defined('AKSRT_URI') ? AKSRT_URI . '/assets/img/user/vip/' . $filename : '';
        }

        return '';
    }

    /**
     * Dual-level VIP settings (legacy 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'       => $enabled,
            'nav_pay_vip'   => !isset($settings['nav_pay_vip']) || !empty($settings['nav_pay_vip']),
            'nav_user_pay_vip' => !isset($settings['nav_user_pay_vip']) || !empty($settings['nav_user_pay_vip']),
            '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>'), $allowed_equity),
                    'img_icon'       => self::get_vip_icon_url(1, (string) ($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))),
                ],
                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>'), $allowed_equity),
                    'img_icon'       => self::get_vip_icon_url(2, (string) ($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))),
                ],
            ],
            'benefit'       => [
                'download_limit'   => max(0, min(9999, (int) ($settings['pay_download_limit'] ?? 0))),
            ],
            'renew'         => [
                'enabled'    => !isset($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'     => self::money_decimal($settings['vip_renew_reduce'] ?? '20.00', '20.00', 999900),
            ],
            'upgrade'       => [
                'enabled' => !isset($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")),
            ],
        ];
    }

    /**
     * Creator-income policy. Cash and points intentionally use separate ratio sets.
     *
     * @return array{enabled:bool,cycle_days:int,ratios:array<string,array<string,int>>,note:string}
     */
    public static function get_payment_revenue_settings(): array {
        $settings = Settings::get_all();
        $note = trim((string) ($settings['payment_revenue_note'] ?? ''));
        $clamp_ratio = static fn ($value): int => max(0, min(100, (int) $value));

        return [
            'enabled'    => !empty($settings['pay_income_s']),
            'cycle_days' => max(1, min(365, (int) ($settings['payment_revenue_cycle_days'] ?? 30))),
            'ratios'     => [
                'cash' => [
                    'ordinary' => $clamp_ratio($settings['payment_revenue_cash_ratio_user'] ?? 60),
                    'vip1'     => $clamp_ratio($settings['payment_revenue_cash_ratio_vip_1'] ?? 70),
                    'vip2'     => $clamp_ratio($settings['payment_revenue_cash_ratio_vip_2'] ?? 80),
                ],
                'points' => [
                    'ordinary' => $clamp_ratio($settings['payment_revenue_points_ratio_user'] ?? 0),
                    'vip1'     => $clamp_ratio($settings['payment_revenue_points_ratio_vip_1'] ?? 0),
                    'vip2'     => $clamp_ratio($settings['payment_revenue_points_ratio_vip_2'] ?? 0),
                ],
            ],
            'note'       => $note !== '' ? wp_kses_post($note) : __('<p>订单完成并经过结算周期后，作者分成会自动转入对应的钱包。</p>', 'aksrt'),
        ];
    }

    /**
     * Affiliate policy. Layout follows the reference theme: one rebate rule
     * set per user tier (pay_rebate_user_s / _1 / _2 + pay_rebate_ratio*).
     *
     * @return array<string,mixed>
     */
    public static function get_payment_affiliate_settings(): array {
        $settings = Settings::get_all();
		$clamp_ratio = static fn($value): int => max(0, min(100, (int) $value));

        $resolve_types = static function (array $types): array {
            $types = array_values(array_intersect(['all', 'membership', 'content', 'credits'], array_map('sanitize_key', $types)));
            // 「全部订单」展开为全部可返佣订单类型。
            if (in_array('all', $types, true)) {
                return ['membership', 'content', 'credits'];
            }
            return $types;
        };

        $types_by_level = [
            0 => $resolve_types((array) ($settings['pay_rebate_user_s'] ?? [])),
            1 => $resolve_types((array) ($settings['pay_rebate_user_s_1'] ?? ['all'])),
            2 => $resolve_types((array) ($settings['pay_rebate_user_s_2'] ?? ['all'])),
        ];

        $judgment = sanitize_key((string) ($settings['pay_rebate_judgment'] ?? 'all'));
        if (!in_array($judgment, ['all', 'link'], true)) {
            $judgment = 'all';
        }

        return [
            'enabled' => !empty($settings['pay_rebate_s']),
            'judgment' => $judgment,
            'show_users' => !isset($settings['pay_rebate_show_users']) || !empty($settings['pay_rebate_show_users']),
            'self_rebate' => !isset($settings['pay_rebate_self_s']) || !empty($settings['pay_rebate_self_s']),
            'ratios' => [
                'user' => $clamp_ratio($settings['pay_rebate_ratio'] ?? 5),
                'vip_1' => $clamp_ratio($settings['pay_rebate_ratio_vip_1'] ?? 10),
                'vip_2' => $clamp_ratio($settings['pay_rebate_ratio_vip_2'] ?? 20),
            ],
            'order_types' => $types_by_level[0],
            'order_types_by_level' => $types_by_level,
            'disabled_code_stops_commission' => !empty($settings['affiliate_disabled_code_stops_commission']),
            'window_days' => (int) CreditsRuntime::get_referral_settings()['window_days'],
            'promotion_text' => sanitize_textarea_field((string) ($settings['pay_rebate_text_details'] ?? '')),
            'details_title' => sanitize_text_field((string) ($settings['pay_rebate_text_details_title'] ?? '返佣详解')),
            'poster' => [
                'enabled' => !isset($settings['pay_rebate_poster_s']) || !empty($settings['pay_rebate_poster_s']),
                'image' => esc_url_raw((string) ($settings['pay_rebate_poster_img'] ?? '')),
                'title' => sanitize_text_field((string) ($settings['pay_rebate_poster_title'] ?? '')),
                'description' => sanitize_text_field((string) ($settings['pay_rebate_poster_desc'] ?? '')),
            ],
        ];
    }

    /**
     * 某等级推广者可获返佣的订单类型；空数组代表该等级用户不参与推广返佣。
     *
     * @return array<int,string>
     */
    public static function affiliate_order_types_for_level(int $level): array {
        $settings = self::get_payment_affiliate_settings();
        $key = $level >= 2 ? 2 : ($level >= 1 ? 1 : 0);
        return (array) ($settings['order_types_by_level'][$key] ?? []);
    }

    public static function affiliate_enabled(): bool { return !empty(self::get_payment_affiliate_settings()['enabled']); }
	public static function affiliate_ratio_for_user(int $user_id): int {
        $level = function_exists('aksrt_get_user_vip_level') ? (int) aksrt_get_user_vip_level($user_id) : 0;
        return self::affiliate_ratio_for_level($level);
    }
	public static function affiliate_ratio_for_level(int $level): int {
        $settings = self::get_payment_affiliate_settings();
        $key = $level >= 2 ? 'vip_2' : ($level >= 1 ? 'vip_1' : 'user');
		return (int) ($settings['ratios'][$key] ?? 0);
    }
    public static function get_affiliate_settings(): array { return self::get_payment_affiliate_settings(); }

    /**
     * Gateway channel selection. WeChat / Alipay each pick between the
     * official SDK and 易支付; PayPal / Stripe are standalone toggles.
     *
     * @return array<string,mixed>
     */
    public static function get_payment_gateway_settings(): array {
        $settings = Settings::get_all();

        $wechat = sanitize_key((string) ($settings['pay_wechat_sdk_options'] ?? 'null'));
        if (!in_array($wechat, ['official_wechat', 'epay', 'null'], true)) {
            $wechat = 'null';
        }
        $alipay = sanitize_key((string) ($settings['pay_alipay_sdk_options'] ?? 'null'));
        if (!in_array($alipay, ['official_alipay', 'epay', 'null'], true)) {
            $alipay = 'null';
        }
        $paypal_enabled = !empty($settings['pay_paypal_sdk_s']);
        $stripe_enabled = !empty($settings['pay_stripe_sdk_s']);
        $balance_enabled = !empty($settings['pay_balance_s']);
        // 卡密收款接口随三个兑换开关任一生效（余额 / 积分 / 会员）。
        $card_pass_enabled = !empty($settings['pay_balance_pass_charge_s'])
            || !empty($settings['points_pass_exchange_s'])
            || !empty($settings['pay_vip_pass_charge_s']);

        return [
            'help_text' => __('微信 / 支付宝可在官方与易支付之间选择；PayPal、Stripe 独立开关。异步回调由各网关验签。', 'aksrt'),
            'wechat_sdk_options' => $wechat,
            'alipay_sdk_options' => $alipay,
            'paypal_enabled'     => $paypal_enabled,
            'stripe_enabled'     => $stripe_enabled,
            'balance_enabled'    => $balance_enabled,
            'card_pass_enabled'  => $card_pass_enabled,
            'gateways'           => [
                'wechat'    => $wechat === 'official_wechat',
                'alipay'    => $alipay === 'official_alipay',
                'paypal'    => $paypal_enabled,
                'stripe'    => $stripe_enabled,
                'balance'   => $balance_enabled,
                'card_pass' => $card_pass_enabled,
                'epay'      => $wechat === 'epay' || $alipay === 'epay',
            ],
            'currency'      => [
                'mark' => sanitize_text_field((string) ($settings['pay_currency_mark'] ?? '￥')),
                'unit' => sanitize_text_field((string) ($settings['pay_currency_unit'] ?? '元')),
            ],
            'custom_title_s' => !empty($settings['pay_sdk_custom_title_s']),
            'custom_title'   => sanitize_text_field((string) ($settings['pay_sdk_custom_title'] ?? '')),
            'epay'           => [
                'apiurl' => esc_url_raw((string) ($settings['epay_apiurl'] ?? '')),
                'pid'    => sanitize_text_field((string) ($settings['epay_pid'] ?? '')),
                'key'    => sanitize_text_field((string) ($settings['epay_key'] ?? '')),
                'device' => sanitize_key((string) ($settings['epay_device'] ?? 'auto')),
            ],
        ];
    }

    /**
     * Order display / checkout policy (legacy 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)));

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

        $status_keys = ['pending', 'paid', 'refunded', 'closed'];
        $status_defaults = ['待支付', '已支付', '已退款', '已关闭'];
        $status_texts = [];
        foreach ($status_keys as $i => $key) {
            $val = trim((string) ($s["payment_order_status_{$key}"] ?? ''));
            $status_texts[$key] = $val !== '' ? $val : $status_defaults[$i];
        }

        return [
            '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']),
            'mark'              => sanitize_text_field((string) ($s['pay_mark'] ?? '付费')),
            'box_position'      => $box_position,
            'show_ip'           => !empty($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'      => $status_texts,
            'service'           => self::format_service_items((array) ($s['pay_service'] ?? [])),
        ];
    }

    /**
     * 客户服务：参考主题为 {value, icon} 数组；首项同时回填旧单值键，兼容既有消费方。
     *
     * @param array<int,mixed> $items
     * @return array<string,mixed>
     */
    private static function format_service_items(array $items): array {
        $clean = [];
        foreach ($items as $row) {
            if (!is_array($row)) {
                continue;
            }
            $value = sanitize_textarea_field((string) ($row['value'] ?? ''));
            if ($value === '') {
                continue;
            }
            $clean[] = [
                'value' => $value,
                'icon'  => sanitize_text_field((string) ($row['icon'] ?? '')),
            ];
        }
        $first = $clean[0] ?? [];
        return [
            'items'  => $clean,
            'text'   => (string) ($first['value'] ?? ''),
            'icon'   => (string) ($first['icon'] ?? ''),
            'value'  => (string) ($first['value'] ?? ''),
            'qq'     => '',
            'wechat' => '',
        ];
    }

    /**
     * Return the UTC expiry time for a newly created payable order.
     *
     * Keeping this in the payment runtime prevents individual checkout
     * flows from drifting away from the admin "payment_order_expiry" setting.
     */
    public static function get_order_expiry_at(?int $now = null): string {
        $settings = self::get_order_settings();
        $timestamp = $now ?? time();
        $minutes = max(5, min(1440, (int) ($settings['expiry'] ?? 30)));

        return gmdate('Y-m-d H:i:s', $timestamp + $minutes * MINUTE_IN_SECONDS);
    }

    /**
     * @return array{min_amount:string,service_charge_rate:int,daily_count:int,daily_limit:string,reset_time:string,payout_channels:string[]}
     */
    public static function get_withdrawal_settings(): array {
        $s = Settings::get_all();
        $channels = array_values(array_intersect(['alipay', 'wechat'], array_map('sanitize_key', (array) ($s['affiliate_payout_channels'] ?? ['alipay', 'wechat']))));
        if (!$channels) { $channels = ['alipay', 'wechat']; }
        return [
			'min_amount'          => self::money_decimal($s['affiliate_min_withdrawal'] ?? '50.00', '50.00', 99999900),
			'service_charge_rate' => max(0, min(100, (int) ($s['affiliate_withdrawal_fee'] ?? 5))),
            'daily_count'         => max(0, min(99999, (int) ($s['affiliate_daily_withdrawal_count'] ?? 3))),
			'daily_limit'         => self::money_decimal($s['affiliate_daily_withdrawal_limit'] ?? '500.00', '500.00', 99999900),
            'reset_time'          => preg_match('/^(?:[01]\\d|2[0-3]):[0-5]\\d$/', (string) ($s['affiliate_withdrawal_reset_time'] ?? '00:00'))
                ? (string) $s['affiliate_withdrawal_reset_time']
                : '00:00',
            'payout_channels'     => $channels,
        ];
    }

    /**
     * Whether a registered adapter is admin-enabled.
     * Gateway ids (wechatpay) map to the reference-theme channel selectors:
     * pay_wechat_sdk_options / pay_alipay_sdk_options / pay_paypal_sdk_s / pay_stripe_sdk_s.
     */
    public static function is_gateway_enabled(string $gateway_id): bool {
        $settings = Settings::get_all();
        $gateway_id = sanitize_key($gateway_id);

        $wechat = sanitize_key((string) ($settings['pay_wechat_sdk_options'] ?? 'null'));
        if (!in_array($wechat, ['official_wechat', 'epay', 'null'], true)) {
            $wechat = 'null';
        }
        $alipay = sanitize_key((string) ($settings['pay_alipay_sdk_options'] ?? 'null'));
        if (!in_array($alipay, ['official_alipay', 'epay', 'null'], true)) {
            $alipay = 'null';
        }

        switch ($gateway_id) {
            case 'alipay':
                return $alipay === 'official_alipay';
            case 'wechatpay':
                return $wechat === 'official_wechat';
            case 'paypal':
                return !empty($settings['pay_paypal_sdk_s']);
            case 'stripe':
                return !empty($settings['pay_stripe_sdk_s']);
            case 'balance':
                return !empty($settings['pay_balance_s']);
            case 'card_pass':
                // 收款接口随三个兑换开关任一生效（余额 / 积分 / 会员）。
                return !empty($settings['pay_balance_pass_charge_s'])
                    || !empty($settings['points_pass_exchange_s'])
                    || !empty($settings['pay_vip_pass_charge_s']);
            case 'epay':
                return $wechat === 'epay' || $alipay === 'epay';
            case 'epay_alipay':
                return $alipay === 'epay';
            case 'epay_wxpay':
                return $wechat === 'epay';
        }
        return false;
    }

    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;
    }

	private static function money_decimal(mixed $value, string $default, int $max_minor = PHP_INT_MAX): string {
		try {
			if (!is_string($value)) {
				throw new \InvalidArgumentException('money_decimal_must_be_string');
			}
			$amount = \AKSRT\Ledger\AssetAmount::balance(trim($value));
			return $amount->minor() <= $max_minor ? $amount->decimal() : $default;
		} catch (\InvalidArgumentException $e) {
			return $default;
		}
	}

    /**
     * Format recharge product rows (reference-theme group shape:
     * price 充值金额 / pay_price 销售金额 / tag 小标签) into "支付|到账|标题" lines.
     *
     * @param array<int,mixed> $products
     */
    private static function format_product_lines(array $products): string {
        $lines = [];
        foreach ($products as $row) {
            if (!is_array($row)) {
                continue;
            }
            $price = max(0, (float) ($row['price'] ?? 0));
            $pay_price = max(0, (float) ($row['pay_price'] ?? 0));
            $pay = $pay_price > 0 ? $pay_price : $price;
            $title = trim((string) ($row['tag'] ?? ''));
            $lines[] = $pay . '|' . $price . '|' . $title;
        }
        return implode("\n", $lines);
    }

    /**
     * Format points product rows (reference-theme group shape:
     * points 积分 / pay_price 销售金额 / tag 小标签) into "积分|支付|标签" lines.
     *
     * @param array<int,mixed> $products
     */
    private static function format_points_product_lines(array $products): string {
        $lines = [];
        foreach ($products as $row) {
            if (!is_array($row)) {
                continue;
            }
            $points = max(0, (int) ($row['points'] ?? 0));
            $pay_price = max(0, (float) ($row['pay_price'] ?? 0));
            $title = trim((string) ($row['tag'] ?? ''));
            $lines[] = $points . '|' . $pay_price . '|' . $title;
        }
        return implode("\n", $lines);
    }
}