@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）
    $currentQuery = request()->query();
    unset($currentQuery['back']);
    $selfWithoutBack = '/' . ltrim(request()->path(), '/');
    if (count($currentQuery) > 0) {
        $selfWithoutBack .= '?' . \Illuminate\Support\Arr::query($currentQuery);
    }
    $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', '');
    $safeBackForLinks = (str_starts_with($incomingBack, '/')
        && !preg_match('/["\'<>]/', $incomingBack)
        && !preg_match('/(?:^|[?&])back=/', $incomingBack))
        ? $incomingBack
        : '';
@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) {
            $path = '/' . ltrim(request()->path(), '/');

            $contextKeys = [
                'merchant_id' => 1,
                'plan_id' => 1,
                'keyword' => 1,
            ];

            $q = array_intersect_key(request()->query(), $contextKeys);

            if ($safeBackForLinks !== '') {
                $q['back'] = $safeBackForLinks;
            }

            foreach ($overrides as $k => $v) {
                if ($v === null) {
                    unset($q[$k]);
                    continue;
                }
                $q[$k] = $v;
            }

            if (count($q) === 0) {
                return $path;
            }

            return $path . '?' . \Illuminate\Support\Arr::query($q);
        };

        // “全部”：清空筛选，但保留安全 back（用于返回来源页）
        $allUrl = '/admin/site-subscriptions';
        if ($safeBackForLinks !== '') {
            $allUrl .= '?' . \Illuminate\Support\Arr::query(['back' => $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>筛选条件</h3>
    <form method="get" action="/admin/site-subscriptions" class="grid-4">
        @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>

<div class="grid-4 mb-20">
    <div class="card">
        <h3>订阅总数</h3>
        <div class="num-md">{{ $summaryStats['total_subscriptions'] ?? 0 }}</div>
    </div>
    <div class="card">
        <h3>已生效</h3>
        <div class="num-md">{{ $summaryStats['activated_subscriptions'] ?? 0 }}</div>
    </div>
    <div class="card">
        <h3>待生效</h3>
        <div class="num-md">{{ $summaryStats['pending_subscriptions'] ?? 0 }}</div>
    </div>
    <div class="card">
        <h3>已取消</h3>
        <div class="num-md">{{ $summaryStats['cancelled_subscriptions'] ?? 0 }}</div>
    </div>
    <div class="card">
        <h3>已过期（按到期时间）</h3>
        <div class="num-md">{{ $summaryStats['expired_subscriptions'] ?? 0 }}</div>
    </div>
    <div class="card">
        <h3>7天内到期</h3>
        <div class="num-md">{{ $summaryStats['expiring_7d_subscriptions'] ?? 0 }}</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',
                'back' => $selfWithoutBack,
            ];
            if ((int) ($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'];
            }
            $createOrderFromSubIndexUrl = '/admin/platform-orders/create?' . \Illuminate\Support\Arr::query($q);
        @endphp
        <a class="btn btn-sm" href="{!! $createOrderFromSubIndexUrl !!}">创建续费订单（带当前筛选）</a>
    </div>
    <div class="muted muted-xs mt-6">用于运营从订阅目录快速补单/续费：会把当前 merchant_id/plan_id/site_subscription_id 作为默认值带到下单页。</div>
</div>

<div class="card">
    <h3>订阅列表</h3>
    <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 = '/admin/site-subscriptions/' . $subscription->id . '?' . \Illuminate\Support\Arr::query([
                            'back' => $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',
                            'site_subscription_id' => $subscription->id,
                            'quantity' => 1,
                            'remark' => $remarkPrefix . $subscription->subscription_no,
                            'back' => $back,
                        ];
                        if ((int) ($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;
                        }
                        $renewOrderUrl = '/admin/platform-orders/create?' . \Illuminate\Support\Arr::query($q);
                    @endphp
                    <div class="mt-4">
                        <a class="btn btn-secondary btn-sm" href="{!! $renewOrderUrl !!}">续费下单</a>
                    </div>
                </td>
                <td>
                    @if($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
                            $platformOrdersUrl = '/admin/platform-orders?' . \Illuminate\Support\Arr::query([
                                'site_subscription_id' => $subscription->id,
                                'back' => $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">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 class="pagination-wrap">{{ $subscriptions->links() }}</div>
@endsection