@extends('admin.layouts.app')

@section('title', '订阅管理')
@section('page_title', '订阅管理')

@section('content')
@php
    // back 参数用于“返回上一页（保留上下文）”，但 back 本身不应再包含 back（避免无限嵌套导致 URL 膨胀）
    // 注意：使用相对路径而非绝对 URL，避免不同 APP_URL 环境影响，以及 show 页 back 安全校验（要求以 / 开头）
    $selfWithoutBack = \App\Support\BackUrl::selfWithoutBack();

    $currentQuery = request()->query();
    unset($currentQuery['back']);
    $back = $selfWithoutBack;

    // 用于构建“保留当前筛选上下文”的站内跳转链接（且不透传 back，避免嵌套/污染）
    $buildSelfUrl = function (array $overrides = []) use ($currentQuery) {
        $q = $currentQuery;
        foreach ($overrides as $k => $v) {
            if ($v === null) {
                unset($q[$k]);
            } else {
                $q[$k] = $v;
            }
        }

        $url = '/' . ltrim(request()->path(), '/');
        if (count($q) > 0) {
            $url .= '?' . \Illuminate\Support\Arr::query($q);
        }

        return $url;
    };

    // back 安全护栏（全页通用）：
    // - 仅允许站内相对路径（/ 开头）
    // - 拒绝引号/尖括号（由于本页大量 href 采用 `{!! !!}` 原样输出，必须严控注入风险）
    // - 拒绝 nested back=（避免 URL 膨胀/绕过）
    $incomingBack = (string) request()->query('back', '');
    $safeBackForLinks = \App\Support\BackUrl::sanitizeForLinks($incomingBack);

    // “从订单详情页来挑订阅”的治理交互：
    // - attach_order_id：表示把选中的订阅绑定回某个订单
    // - attach_back：绑定成功后回跳到哪里（通常是订单详情页）
    $attachOrderId = (int) request()->query('attach_order_id', 0);
    $safeAttachBackForLinks = \App\Support\BackUrl::sanitizeForLinks((string) request()->query('attach_back', ''));

    // 用于摘要卡等入口：保留当前 query 并覆盖字段，同时安全透传 back。
    $safeFullUrlWithQuery = function (array $overrides = []) use ($safeBackForLinks) {
        return \App\Support\BackUrl::currentPathWithQuery($overrides, $safeBackForLinks);
    };

    $subscriptionIndexUrl = \App\Support\BackUrl::withBack('/admin/site-subscriptions', $safeBackForLinks);
@endphp
<div class="card mb-20">
    <p class="muted muted-tight">这里是总台视角的订阅目录页，承接“套餐 -> 订阅 -> 平台订单”的收费主链中间层。</p>
    <p class="muted">当前阶段先做到：可访问列表、可筛选、统计摘要；后续再接：订阅激活服务 / 续费 / 取消 / 对账。</p>

    @if($safeBackForLinks !== '')
        <div class="mt-10">
            <a href="{!! $safeBackForLinks !!}" class="muted">← 返回上一页（保留上下文）</a>
        </div>
    @endif
</div>

<div class="card mb-20">
    <h3>快捷筛选</h3>
    <div class="muted mb-10">用于运营快速定位需要处理的订阅集合（口径基于筛选条件组合）。</div>

    @php
        // 快捷筛选：仅保留“上下文”字段（站点/套餐/keyword/安全 back），避免把其它筛选条件叠加导致空结果
        $buildQuickFilterUrl = function (array $overrides) use ($safeBackForLinks) {
            return \App\Support\BackUrl::currentPathQuickFilter(['merchant_id', 'plan_id', 'keyword'], $overrides, $safeBackForLinks);
        };

        // “全部”：清空筛选，但保留安全 back（用于返回来源页）
        $allUrl = \App\Support\BackUrl::withBack('/admin/site-subscriptions', $safeBackForLinks);
    @endphp

    <div>
        <a href="{!! $allUrl !!}" class="muted">全部</a>
        <span class="muted">｜</span>
        <a href="{!! $buildQuickFilterUrl(['status' => 'activated', 'expiry' => null]) !!}" class="muted">已生效</a>
        <span class="muted">｜</span>
        <a href="{!! $buildQuickFilterUrl(['status' => 'pending', 'expiry' => null]) !!}" class="muted">待生效</a>
        <span class="muted">｜</span>
        <a href="{!! $buildQuickFilterUrl(['status' => 'cancelled', 'expiry' => null]) !!}" class="muted">已取消</a>
        <span class="muted">｜</span>
        <a href="{!! $buildQuickFilterUrl(['status' => null, 'expiry' => 'expired']) !!}" class="muted">已过期</a>
        <span class="muted">｜</span>
        <a href="{!! $buildQuickFilterUrl(['status' => null, 'expiry' => 'expiring_7d']) !!}" class="muted">7天内到期</a>
    </div>
</div>

<div class="card mb-20">
    <h3>到期治理</h3>
    <div class="muted mb-10">按到期时间（ends_at）快速定位需要续费/处理的订阅集合（不改变订阅 status 字段）。</div>

    @php
        $expiredUrl = $buildQuickFilterUrl(['status' => null, 'expiry' => 'expired']);
        $expiring7dUrl = $buildQuickFilterUrl(['status' => null, 'expiry' => 'expiring_7d']);
    @endphp

    <div class="actions">
        <a class="btn btn-secondary btn-sm" href="{!! $expiredUrl !!}">已过期（{{ $summaryStats['expired_subscriptions'] ?? 0 }}）</a>
        <a class="btn btn-secondary btn-sm" href="{!! $expiring7dUrl !!}">7天内到期（{{ $summaryStats['expiring_7d_subscriptions'] ?? 0 }}）</a>

        @php
            // 当已处于“到期集合”视图时，补一个就近的续费下单入口（带回退到当前列表的 back）。
            $isExpiryView = in_array((string) ($filters['expiry'] ?? ''), ['expired', 'expiring_7d'], true);
            $renewalCtaUrl = '';
            if ($isExpiryView) {
                $q = [
                    'order_type' => 'renewal',
                    // 续费单必须绑定订阅：集合入口也应尽可能引导到订阅维度续费（批量另行建设）。
                    'require_subscription' => '1',
                ];
                if ((int) ($filters['merchant_id'] ?? 0) > 0) {
                    $q['merchant_id'] = (int) $filters['merchant_id'];
                }
                if ((int) ($filters['plan_id'] ?? 0) > 0) {
                    $q['plan_id'] = (int) $filters['plan_id'];
                }
                $renewalCtaUrl = \App\Support\BackUrl::withBack('/admin/platform-orders/create?' . \Illuminate\Support\Arr::query($q), $selfWithoutBack);
            }
        @endphp
        @if($isExpiryView)
            <a class="btn btn-sm" href="{!! $renewalCtaUrl !!}">创建续费订单（当前集合）</a>
            <span class="muted muted-xs">（建议：进入后按订阅维度续费）</span>
        @endif
    </div>

    <div class="muted muted-xs mt-6">建议：先处理“7天内到期”续费触达，再处理“已过期”补单或关闭。</div>
</div>

<details class="card mb-20 collapsible filters-card" data-role="collapsible" data-storage-key="admin.site_subscriptions.filters" open>
    <summary class="collapsible-summary filters-summary">
        <div class="flex-between items-center">
            <h3 class="mb-0">筛选条件</h3>
            <span class="muted muted-xs">点击收起/展开</span>
        </div>
    </summary>
    <div class="collapsible-body filters-body">
        <form method="get" action="/admin/site-subscriptions" class="grid-4 filters-grid">

        @if($safeBackForLinks !== '')
            <input type="hidden" name="back" value="{!! $safeBackForLinks !!}">
        @endif
        <select name="status">
            <option value="">全部状态</option>
            @foreach(($filterOptions['statuses'] ?? []) as $value => $label)
                <option value="{{ $value }}" @selected(($filters['status'] ?? '') === $value)>{{ $label }}</option>
            @endforeach
        </select>
        <select name="expiry">
            <option value="">全部到期状态</option>
            <option value="expiring_7d" @selected(($filters['expiry'] ?? '') === 'expiring_7d')>7天内到期</option>
            <option value="expired" @selected(($filters['expiry'] ?? '') === 'expired')>已过期</option>
        </select>
        <select name="merchant_id">
            <option value="">全部站点</option>
            @foreach(($merchants ?? []) as $merchant)
                <option value="{{ $merchant->id }}" @selected(($filters['merchant_id'] ?? '') == $merchant->id)>{{ $merchant->name }}</option>
            @endforeach
        </select>
        <select name="plan_id">
            <option value="">全部套餐</option>
            @foreach(($plans ?? []) as $plan)
                <option value="{{ $plan->id }}" @selected(($filters['plan_id'] ?? '') == $plan->id)>{{ $plan->name }}</option>
            @endforeach
        </select>
        <input name="keyword" placeholder="搜索订阅号 / 站点 / 套餐 / 计费周期" value="{{ $filters['keyword'] ?? '' }}">
        <div>
            <button class="btn btn-sm" type="submit">应用筛选</button>
        </div>
        </form>
    </div>
</details>

<div class="grid-4 mb-20">
    <div class="card">
        <h3>订阅总数</h3>
        <div class="num-md">
            <a class="link" href="{!! $subscriptionIndexUrl !!}">{{ $summaryStats['total_subscriptions'] ?? 0 }}</a>
        </div>
    </div>
    <div class="card">
        <h3>已生效</h3>
        <div class="num-md">
            <a class="link" href="{!! $safeFullUrlWithQuery(['status' => 'activated', 'page' => null]) !!}">{{ $summaryStats['activated_subscriptions'] ?? 0 }}</a>
        </div>
        <div class="muted muted-xs">
            <a class="link" href="{!! $safeFullUrlWithQuery(['status' => 'pending', 'page' => null]) !!}">查看待生效</a>
        </div>
    </div>
    <div class="card">
        <h3>待生效</h3>
        <div class="num-md">
            <a class="link" href="{!! $safeFullUrlWithQuery(['status' => 'pending', 'page' => null]) !!}">{{ $summaryStats['pending_subscriptions'] ?? 0 }}</a>
        </div>
        <div class="muted muted-xs">
            <a class="link" href="{!! $safeFullUrlWithQuery(['status' => 'activated', 'page' => null]) !!}">查看已生效</a>
        </div>
    </div>
    <div class="card">
        <h3>已取消</h3>
        <div class="num-md">
            <a class="link" href="{!! $safeFullUrlWithQuery(['status' => 'cancelled', 'page' => null]) !!}">{{ $summaryStats['cancelled_subscriptions'] ?? 0 }}</a>
        </div>
        <div class="muted muted-xs">
            <a class="link" href="{!! $safeFullUrlWithQuery(['status' => 'activated', 'page' => null]) !!}">查看已生效</a>
        </div>
    </div>
    <div class="card">
        <h3>已过期（按到期时间）</h3>
        <div class="num-md">
            <a class="link" href="{!! $safeFullUrlWithQuery(['expiry' => 'expired', 'page' => null]) !!}">{{ $summaryStats['expired_subscriptions'] ?? 0 }}</a>
        </div>
        <div class="muted muted-xs">
            <a class="link" href="{!! $safeFullUrlWithQuery(['expiry' => 'expiring_7d', 'page' => null]) !!}">查看7天内到期</a>
        </div>
    </div>
    <div class="card">
        <h3>7天内到期</h3>
        <div class="num-md">
            <a class="link" href="{!! $safeFullUrlWithQuery(['expiry' => 'expiring_7d', 'page' => null]) !!}">{{ $summaryStats['expiring_7d_subscriptions'] ?? 0 }}</a>
        </div>
        <div class="muted muted-xs">
            <a class="link" href="{!! $safeFullUrlWithQuery(['expiry' => 'expired', 'page' => null]) !!}">查看已过期</a>
        </div>
    </div>
</div>

<div class="card mb-20">
    <h3>工具</h3>
    <div class="grid-2">
        <form method="get" action="/admin/site-subscriptions/export" class="actions gap-10">
            <input type="hidden" name="download" value="1">
            <input type="hidden" name="status" value="{{ $filters['status'] ?? '' }}">
            <input type="hidden" name="merchant_id" value="{{ $filters['merchant_id'] ?? '' }}">
            <input type="hidden" name="plan_id" value="{{ $filters['plan_id'] ?? '' }}">
            <input type="hidden" name="expiry" value="{{ $filters['expiry'] ?? '' }}">
            <input type="hidden" name="keyword" value="{{ $filters['keyword'] ?? '' }}">
            <button class="btn btn-secondary btn-sm" type="submit">导出当前筛选结果（CSV）</button>
        </form>

        @php
            $q = [
                'order_type' => 'renewal',
                'require_subscription' => '1',
            ];
            if ((int) ($filters['merchant_id'] ?? 0) > 0) {
                $q['merchant_id'] = (int) $filters['merchant_id'];
            }
            if ((int) ($filters['plan_id'] ?? 0) > 0) {
                $q['plan_id'] = (int) $filters['plan_id'];
            }
            $createOrderFromSubIndexUrl = \App\Support\BackUrl::withBack('/admin/platform-orders/create?' . \Illuminate\Support\Arr::query($q), $selfWithoutBack);
        @endphp
        <a class="btn btn-sm" href="{!! $createOrderFromSubIndexUrl !!}">续费下单（先选订阅）</a>
    </div>
    <div class="muted muted-xs mt-6">
        用于运营从订阅目录快速发起续费下单：会把当前 merchant_id/plan_id 作为默认值带到下单页。
        <span class="muted">续费单必须绑定订阅，建议从下方列表行内「续费下单」选择具体订阅。</span>
    </div>
</div>

<div class="card list-card">
    <div class="list-card-header">
        <div>
            <h3 class="list-card-title">订阅列表</h3>
        </div>
    </div>
    <div class="list-card-body">
    <table class="list-card-table">
        <thead>
        <tr>
            <th>ID</th>
            <th>订阅号</th>
            <th>站点</th>
            <th>套餐</th>
            <th>状态</th>
            <th>计费周期</th>
            <th>周期(月)</th>
            <th>金额</th>
            <th>开始时间</th>
            <th>到期时间</th>
            <th>到期状态</th>
            <th>关联订单数</th>
            <th>生效时间</th>
        </tr>
        </thead>
        <tbody>
        @forelse($subscriptions as $subscription)
            <tr>
                <td>{{ $subscription->id }}</td>
                <td>
                    @php
                        $subShowUrl = \App\Support\BackUrl::withBack('/admin/site-subscriptions/' . $subscription->id, $back);
                    @endphp
                    <a href="{!! $subShowUrl !!}">{{ $subscription->subscription_no }}</a>
                    @php
                        $remarkPrefix = (string) config('saasshop.platform_orders.renewal_order_remark_prefix', '来自订阅：');
                        $q = [
                            'order_type' => 'renewal',
                            'require_subscription' => '1',
                            'site_subscription_id' => $subscription->id,
                            'quantity' => 1,
                            'remark' => $remarkPrefix . $subscription->subscription_no,
                        ];
                        if ((int) ($subscription->merchant_id ?? 0) > 0) {
                            $q['merchant_id'] = (int) $subscription->merchant_id;
                        }
                        if ((int) ($subscription->plan_id ?? 0) > 0) {
                            $q['plan_id'] = (int) $subscription->plan_id;
                        }
                        $renewOrderUrl = \App\Support\BackUrl::withBack('/admin/platform-orders/create?' . \Illuminate\Support\Arr::query($q), $back);
                    @endphp
                    <div class="mt-4 actions gap-10">
                        <a class="btn btn-secondary btn-sm" href="{!! $renewOrderUrl !!}">续费下单</a>

                        @if($attachOrderId > 0)
                            @php
                                // 从订单详情进入订阅管理页时：提供“绑定到该订单”的治理按钮
                                // 注意：提交后由 attachSubscription 做强校验（续费单 + merchant/plan 一致）
                                $attachBack = $safeAttachBackForLinks !== '' ? $safeAttachBackForLinks : $safeBackForLinks;
                                if ($attachBack === '') {
                                    $attachBack = $back;
                                }
                            @endphp
                            <form method="post" action="/admin/platform-orders/{{ $attachOrderId }}/attach-subscription" class="inline-form" data-action="disable-on-submit" onsubmit="return confirm('确认将该订阅绑定到目标订单？');">
                                @csrf
                                <input type="hidden" name="site_subscription_id" value="{{ $subscription->id }}">
                                @if($attachBack !== '')
                                    <input type="hidden" name="back" value="{!! $attachBack !!}">
                                @endif
                                <button type="submit" class="btn btn-primary btn-sm">绑定到订单 #{{ $attachOrderId }}</button>
                            </form>
                        @endif

                        <form method="post" action="/admin/site-subscriptions/{{ $subscription->id }}/set-status">
                            @csrf
                            <select name="status" onchange="this.form.submit()" class="w-140">
                                @foreach(($filterOptions['statuses'] ?? []) as $value => $label)
                                    <option value="{{ $value }}" @selected($subscription->status === $value)>{{ $label }}</option>
                                @endforeach
                            </select>
                            <noscript><button type="submit" class="btn btn-secondary btn-sm">更新状态</button></noscript>
                        </form>
                    </div>
                </td>
                <td>
                    @if($subscription->merchant)
                        <a class="link" href="{!! $buildSelfUrl(['merchant_id' => $subscription->merchant->id, 'page' => null]) !!}">{{ $subscription->merchant->name }}</a>
                    @else
                        未关联站点
                    @endif
                </td>
                <td>
                    @if($subscription->plan)
                        <a class="link" href="{!! $buildSelfUrl(['plan_id' => $subscription->plan->id, 'page' => null]) !!}">{{ $subscription->plan_name ?: $subscription->plan->name }}</a>
                    @else
                        {{ $subscription->plan_name ?: '未设置' }}
                    @endif
                </td>
                <td>{{ ($statusLabels[$subscription->status] ?? $subscription->status) }} <span class="muted">({{ $subscription->status }})</span></td>
                <td>{{ $subscription->billing_cycle ?: '-' }}</td>
                <td>{{ $subscription->period_months }}</td>
                <td>¥{{ number_format((float) $subscription->amount, 2) }}</td>
                <td>{{ optional($subscription->starts_at)->format('Y-m-d H:i:s') ?: '-' }}</td>
                <td>{{ optional($subscription->ends_at)->format('Y-m-d H:i:s') ?: '-' }}</td>
                <td>
                    @php
                        $endsAt = $subscription->ends_at;
                        $expiryLabel = '无到期';
                        if ($endsAt) {
                            if ($endsAt->lt(now())) {
                                $expiryLabel = '已过期';
                            } elseif ($endsAt->lt(now()->addDays(7))) {
                                $expiryLabel = '7天内到期';
                            } else {
                                $expiryLabel = '未到期';
                            }
                        }
                    @endphp
                    {{ $expiryLabel }}
                </td>
                <td>
                    @php $cnt = (int) ($subscription->platform_orders_count ?? 0); @endphp
                    @if($cnt > 0)
                        @php
                            // 跳到平台订单页：附带 back 回到“订阅列表页自身（剔除 back）”，并统一走 BackUrl helper。
                            $platformOrdersUrl = \App\Support\BackUrl::withBack(
                                '/admin/platform-orders?' . \Illuminate\Support\Arr::query([
                                    'site_subscription_id' => $subscription->id,
                                ]),
                                $back
                            );
                        @endphp
                        <a href="{!! $platformOrdersUrl !!}">{{ $cnt }}</a>
                    @else
                        <span class="muted">0</span>
                    @endif
                </td>
                <td>{{ optional($subscription->activated_at)->format('Y-m-d H:i:s') ?: '-' }}</td>
            </tr>
        @empty
            <tr>
                <td colspan="13" class="muted table-empty">暂无订阅数据，当前阶段先把订阅主表与总台目录立起来，后续再接订阅创建/激活/续费链路。</td>
            </tr>
        @endforelse
        </tbody>
    </table>
    </div>
</div>

<div class="pagination-wrap">{{ $subscriptions->links('pagination.admin') }}</div>
@endsection