<?php
/**
 * VIP modal view model + card HTML (legacy pay-vip modal / vip-card parity).
 *
 * @package AKSRT
 */

namespace AKSRT\Content;

defined('ABSPATH') || exit;

trait VipServiceModal {

    /**
     * Build the minimal JSON view model consumed by pay-vip.js.
     *
     * The catalog, member state, package prices, payment methods, and allowed
     * actions are all calculated server-side. No payment gateway response or
     * server-rendered modal HTML is included in this payload.
     *
     * @return array<string,mixed>
     */
    public function get_modal_view_model(int $user_id, int $prefer_level = 1): array {
        $catalog = $this->get_catalog($user_id);
        $vip = $this->get_vip_settings_context();
        $member = $this->get_vip_member_context($user_id);
        $levels = is_array($vip['levels'] ?? null) ? $vip['levels'] : [];
        $prefer_level = max(1, min(2, $prefer_level));

        $level_view = [];
        foreach ([1, 2] as $level) {
            if (empty($levels[$level]['enabled'])) {
                continue;
            }
            $equity = (string) ($levels[$level]['equity'] ?? '');
            $equity = function_exists('aksrt_format_vip_equity_html')
                ? (string) aksrt_format_vip_equity_html($equity)
                : wp_kses_post($equity);
            $level_view[] = [
                'level' => $level,
                'name' => wp_kses_post((string) ($levels[$level]['name_html'] ?? $levels[$level]['name'] ?? ('VIP' . $level))),
                'name_text' => (string) ($levels[$level]['name'] ?? ('VIP' . $level)),
                'desc' => wp_kses_post((string) ($levels[$level]['desc'] ?? '')),
                'equity' => $equity,
                'img_icon' => esc_url_raw((string) ($levels[$level]['img_icon'] ?? '')),
            ];
        }

        $package_ids = [];
        $has_renew = false;
        $has_upgrade = false;
        $groups = is_array($catalog['level_packages'] ?? null) ? $catalog['level_packages'] : [];
        foreach ($groups as $group) {
            if (!is_array($group)) {
                continue;
            }
            $action = sanitize_key((string) ($group['action'] ?? 'pay'));
            $has_renew = $has_renew || $action === 'renew';
            $has_upgrade = $has_upgrade || $action === 'upgrade';
            foreach ((array) ($group['items'] ?? []) as $item) {
                if (is_array($item) && (int) ($item['package_id'] ?? 0) > 0) {
                    $package_ids[] = (int) $item['package_id'];
                }
            }
        }
        $points_exchange = is_array($catalog['points_exchange'] ?? null) ? $catalog['points_exchange'] : [];
        $methods = is_array($catalog['payment_methods'] ?? null) ? $catalog['payment_methods'] : [];
        // 支付方式 logo（与充值/积分弹窗的 payment-method-radio 组件同源）。
        $methods = array_map(function ($m) {
            $id = sanitize_key((string) ($m['id'] ?? ''));
            return [
                'id' => $id,
                'name' => (string) ($m['name'] ?? $id),
                'logo' => $this->payment_method_logo_url($id),
            ];
        }, $methods);
        $card_pass = is_array($catalog['card_pass'] ?? null)
            ? array_merge(['enabled' => false, 'desc' => '', 'only_password' => false], $catalog['card_pass'])
            : ['enabled' => false, 'desc' => '', 'only_password' => false];
        $no_payment_method = $methods === [];
        $action_reasons = [
            'purchase' => $no_payment_method
                ? 'no_payment_method'
                : ($package_ids === [] ? 'no_package' : ''),
            'renew' => $no_payment_method
                ? 'no_payment_method'
                : ($has_renew ? '' : 'not_available'),
            'upgrade' => $no_payment_method
                ? 'no_payment_method'
                : ($has_upgrade ? '' : 'not_available'),
            'points_exchange' => !empty($points_exchange['enabled']) && !empty($points_exchange['packages'])
                ? ''
                : 'not_available',
        ];

        $member_state = (string) ($member['state'] ?? 'unopened');
        $member_version = substr(hash('sha256', (string) wp_json_encode([
            'level' => (int) ($member['level'] ?? 0),
            'expires' => (int) ($member['expires'] ?? 0),
            'state' => $member_state,
        ])), 0, 16);
        $catalog_version = substr(hash('sha256', (string) wp_json_encode([
            'packages' => $groups,
            'points' => $points_exchange,
            'methods' => $methods,
            'levels' => $level_view,
        ])), 0, 16);

        $user = get_userdata($user_id);
        $avatar_url = function_exists('get_avatar_url')
            ? (string) get_avatar_url($user_id, ['size' => 42])
            : '';

        return [
            'enabled' => !empty($catalog['enabled']),
            'prefer_level' => $prefer_level,
            'catalog' => [
                'desc' => (string) ($catalog['desc'] ?? ''),
                'more' => (string) ($vip['more'] ?? ''),
                'currency_name' => (string) ($catalog['currency_name'] ?? ''),
                'level_packages' => $groups,
                'points_exchange' => $points_exchange,
                'wallet_balance' => (string) ($catalog['wallet_balance'] ?? '0.00'),
            ],
            'member' => [
                'id' => $user_id,
                'name' => $user ? (string) $user->display_name : '',
                'avatar_url' => $avatar_url,
                'level' => (int) ($member['level'] ?? 0),
                'expires' => (int) ($member['expires'] ?? 0),
                'expires_label' => (string) ($member['expires_label'] ?? ''),
                'state' => (string) ($member['state'] ?? 'unopened'),
                'is_permanent' => !empty($member['is_permanent']),
                'logged_in' => $user_id > 0,
            ],
            'levels' => $level_view,
            'payment_methods' => $methods,
            'card_pass' => $card_pass,
            'currency_mark' => (string) (\AKSRT\Settings\Settings::get_payment_gateway_settings()['currency']['mark'] ?? '￥'),
            'allowed_actions' => [
                'purchase' => $package_ids !== [] && $methods !== [],
                'renew' => $has_renew && $methods !== [],
                'upgrade' => $has_upgrade && $methods !== [],
                'points_exchange' => !empty($points_exchange['enabled']) && !empty($points_exchange['packages']),
            ],
            'action_reasons' => $action_reasons,
            'version' => [
                'schema' => 1,
                'member' => $member_version,
                'catalog' => $catalog_version,
                // Stable revision token; do not use request time and bust short cache.
                'updated_at' => $member_version . ':' . $catalog_version,
                'tags' => ['vip', 'orders'],
            ],
        ];
    }

    /**
     * 积分兑换会员弹窗（参考主题 zibpay_get_vip_points_exchange_modal 1:1 移植）。
     *
     * 服务端静态输出参考主题 refresh_modal 同构外壳：
     *   .modal.flex.jc.fade > .modal-dialog.modal-mini.full-sm
     *     > .modal-content > .modal-body
     * 与余额充值/购买积分弹窗同构（静止态由 vip-modal.css 显式隐藏，打开态由
     * pay-vip.js 的自包含开关以内联 display:flex 驱动）。
     *
     * 入口有两处（均带 data-aksrt-vip-points-open，pay-vip.js 文档级委托开合）：
     * 会员购买弹窗内的「积分兑换会员」按钮，以及 /user/vip/ 档位购买卡下方的
     * 入口横条（aksrt_get_vip_points_exchange_entry_html）。.pay-vip 触发点
     * 全站可见，因此由 aksrt_render_vip_points_exchange_modal() 在 wp_footer
     * 全局输出一次。
     *
     * @return string 空串表示积分兑换不可用（不输出弹窗壳）。
     */
    public function get_points_exchange_modal_html(int $user_id = 0): string {
        $user_id = max(0, $user_id);
        if ($user_id <= 0 || !class_exists('\AKSRT\Settings\Settings')) {
            return '';
        }

        // 先做零成本门控，避免每次页面渲染都去查积分余额。
        $vip = $this->get_vip_settings_context();
        if (empty($vip['enabled']) || empty($vip['points_exchange']['enabled']) || !\AKSRT\Settings\Settings::credits_enabled()) {
            return '';
        }

        $catalog = $this->get_catalog($user_id);
        $points_ex = is_array($catalog['points_exchange'] ?? null) ? $catalog['points_exchange'] : [];
        $packages = is_array($points_ex['packages'] ?? null) ? $points_ex['packages'] : [];
        if ($packages === []) {
            return '';
        }

        $levels = is_array($vip['levels'] ?? null) ? $vip['levels'] : [];
        $user_points = max(0, (int) ($catalog['user_points'] ?? 0));
        $currency = (string) ($catalog['currency_name'] ?? __('积分', 'aksrt'));
        $points_center_url = function_exists('aksrt_get_user_center_tab_url')
            ? aksrt_get_user_center_tab_url('credits')
            : home_url('/');

        // 会员卡片（参考主题 data-for/data-value 选中模型；data-value 为本主题的套餐 ID）。
        $cards = '';
        $min_points = 0;
        $first_package_id = 0;
        foreach ($packages as $index => $package) {
            if (!is_array($package)) {
                continue;
            }
            $package_id = max(0, (int) ($package['package_id'] ?? 0));
            if ($package_id <= 0) {
                continue;
            }
            if ($first_package_id === 0) {
                $first_package_id = $package_id;
            }
            $level = max(1, min(2, (int) ($package['level'] ?? 1)));
            $points = max(0, (int) ($package['points'] ?? 0));
            // 参考主题时长行：30<span class="px12">天</span> / 永久；time 为 Permanent 时按永久渲染。
            $is_permanent = !empty($package['is_permanent']);
            $pkg_time = max(0, (int) ($package['time'] ?? 0));
            $pkg_unit = ((string) ($package['unit'] ?? 'day')) === 'month' ? 'month' : 'day';
            $duration = ($is_permanent || $pkg_time <= 0)
                ? esc_html__('永久', 'aksrt')
                : (string) $pkg_time . '<span class="px12">' . esc_html($pkg_unit === 'month' ? __('个月', 'aksrt') : __('天', 'aksrt')) . '</span>';
            $level_name = (string) ($levels[$level]['name_html'] ?? $levels[$level]['name'] ?? ('VIP' . $level));

            $cards .= '<div class="vip-card  vip-theme' . $level . ($index === 0 ? ' active' : '') . ' " data-for="product_id" data-value="' . $package_id . '">'
                . '<span class=" ">' . $this->points_exchange_card_icon($levels[$level] ?? []) . wp_kses_post($level_name) . '</span>'
                . '<div class="flex jsb ac hh em16 mt10">'
                . '<span class="shrink0 mr10">' . $duration . '</span>'
                . '<span class="shrink0">' . $points . '<span class="px12">' . esc_html($currency) . '</span></span>'
                . '</div></div>';

            if ($min_points === 0 || $points < $min_points) {
                $min_points = $points;
            }
        }
        if ($cards === '') {
            return '';
        }

        $desc_text = trim((string) ($vip['points_exchange']['desc'] ?? ''));
        $desc = $desc_text !== ''
            // 管理员编辑的富文本说明：保存端已 wp_kses_post，这里同级别输出
            // （参考主题 zibpay_get_vip_points_exchange_modal 原样拼接）。
            ? '<div class="muted-box muted-2-color padding-10 em09 mt20 aksrt-vip-points-desc">' . wp_kses_post($desc_text) . '</div>'
            : '';

        // 最低价套餐仍超出用户积分 → 参考主题的 badg c-red btn-block 提示。
        // （参考主题源码写作 `!$min_val > $user_points`，因运算符优先级恒假，
        //  此处按其原意取真实比较，保证提示分支可达。）
        if ($min_points > $user_points) {
            $form = '<div class="mt20"><div class="badg c-red btn-block">' . esc_html__('积分不足，暂时无法兑换', 'aksrt') . '</div></div>';
        } else {
            $form = '<div class="mt20">'
                . '<input type="hidden" name="product_id" value="' . $first_package_id . '">'
                . '<input type="hidden" name="order_type" value="4">'
                . '<input type="hidden" name="action" value="points_initiate_pay">'
                . '<button type="submit" class="mt6 but jb-yellow btn-block radius padding-lg" data-aksrt-vip-points-submit>'
                . '<i class="fa fas fa-check" aria-hidden="true"></i>' . esc_html__('立即兑换', 'aksrt')
                . '</button></div>';
        }

        $header = '<div class="mb10 touch">'
            . '<button type="button" class="close" data-dismiss="modal" aria-label="' . esc_attr__('关闭', 'aksrt') . '">'
            . '<svg class="ic-close" aria-hidden="true"><use xlink:href="#icon-close"></use></svg></button>'
            . '<b class="modal-title flex ac"><span class="mr6 em14">'
            . '<svg class="icon" aria-hidden="true"><use xlink:href="#icon-vip_1"></use></svg></span>'
            . esc_html__('积分兑换会员', 'aksrt') . '</b></div>';

        $user_box = '<div class="muted-box padding-h10 mb20">'
            . '<a rel="nofollow" class="flex jsb ac" href="' . esc_url($points_center_url) . '">'
            . '<span class="muted-2-color">'
            . '<svg class="icon" aria-hidden="true"><use xlink:href="#icon-points"></use></svg> '
            . esc_html__('我的积分', 'aksrt') . '</span>'
            . '<span class="font-bold ml6 em14"><span class="c-green mr10">' . $user_points . '</span>'
            . '<i class="fa fas fa-angle-right" aria-hidden="true"></i></span></a></div>';

        $lists = '<div class="muted-2-color mb6 em09">' . esc_html__('请选择需兑换的会员', 'aksrt') . '</div>'
            . '<div class="flex hh exchange-card-box">' . $cards . '</div>';

        return '<div class="modal flex jc fade" id="aksrt-vip-points-modal" tabindex="-1" role="dialog" aria-hidden="false" data-aksrt-vip-points-modal>'
            . '<div class="modal-dialog modal-mini full-sm" role="document">'
            . '<div class="modal-content"><div class="modal-body">'
            . $header
            . '<form class="" data-aksrt-vip-points-form>' . $user_box . $lists . $desc . $form . '</form>'
            . '</div></div></div></div>';
    }

    /**
     * 积分兑换卡片等级图标（参考主题 zibpay_get_vip_card_icon）。
     *
     * @param array<string,mixed> $level_settings 等级设置（含 name / img_icon）。
     */
    private function points_exchange_card_icon(array $level_settings): string {
        $name_text = (string) ($level_settings['name'] ?? '');
        $icon_url = (string) ($level_settings['img_icon'] ?? '');
        if ($icon_url === '') {
            return '<i class="fa fas fa-certificate mr3" aria-hidden="true"></i>';
        }

        return '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'img-icon mr3')
            . ' title="' . esc_attr($name_text) . '" alt="' . esc_attr($name_text) . '">';
    }

    /**
     * 支付方式 logo 映射（assets/img/pay-*-logo.svg，与充值/积分弹窗一致）。
     */
    private function payment_method_logo_url(string $id): string {
        $logos = [
            'balance'     => 'pay-balance-logo.svg',
            'alipay'      => 'pay-alipay-logo.svg',
            'epay_alipay' => 'pay-alipay-logo.svg',
            'wechatpay'   => 'pay-wechat-logo.svg',
            'epay_wxpay'  => 'pay-wechat-logo.svg',
            'paypal'      => 'pay-paypal-logo.svg',
            'stripe'      => 'pay-stripe-logo.svg',
            'card_pass'   => 'pay-card-pass-logo.svg',
        ];
        $file = $logos[$id] ?? '';
        return $file === '' ? '' : esc_url_raw(get_template_directory_uri() . '/assets/img/' . $file);
    }

    /**
     * Mini hover card for header (legacy aksrtpay_get_vip_card).
     */
    public function render_vip_card(int $level, int $user_id = 0): string {
        $level = max(1, min(2, $level));
        $vip = $this->get_vip_settings_context();
        $levels = is_array($vip['levels'] ?? null) ? $vip['levels'] : [];
        if (empty($levels[$level]['enabled'])) {
            return '';
        }
        $name = wp_kses_post((string) ($levels[$level]['name_html'] ?? $levels[$level]['name'] ?? ('VIP' . $level)));
        $name_text = (string) ($levels[$level]['name'] ?? ('VIP' . $level));
        $equity = (string) ($levels[$level]['equity'] ?? '');
        $cls = $user_id > 0 ? ' pay-vip' : ' signin-loader';

        $equity_html = $equity !== '' && function_exists('aksrt_format_vip_equity_html')
            ? aksrt_format_vip_equity_html($equity, 'mb10 relative')
            : ($equity !== '' ? '<div class="v-equity mb10 relative">' . wp_kses_post($equity) . '</div>' : '');

        $icon_url = esc_url((string) ($levels[$level]['img_icon'] ?? ''));
        $icon = $icon_url !== ''
            ? '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'img-icon') . ' title="' . esc_attr($name_text) . '" alt="' . esc_attr($name_text) . '" decoding="async">'
            : '<i class="fa fas fa-gem" aria-hidden="true"></i>';
        $html  = '<div class="vip-card pointer level-' . $level . ' vip-theme' . $level . $cls . '" vip-level="' . $level . '">';
        $html .= '<div class="abs-center vip-baicon" aria-hidden="true">' . $icon . '</div>';
        $html .= '<div class="vip-img abs-right">' . $icon . '</div>';
        $html .= '<div class="relative">';
        $html .= '<div class="vip-name mb10"><span class="mr6">' . $icon . '</span>' . wp_kses_post($name) . '</div>';
        $html .= $equity_html;
        $html .= '<a class="but jb-blue radius payvip-button" href="javascript:;">'
            . wp_kses_post(sprintf(__('开通%s', 'aksrt'), $name))
            . '<span class="ml6"><i class="fa fas fa-chevron-circle-right" aria-hidden="true"></i></span></a>';
        $html .= '</div></div>';
        return $html;
    }
}