@extends('student.layouts.app')

@section('title', __('dashboard.Notifications'))

@section('content')
@php
    $isArabic = app()->getLocale() === 'ar';
    $notificationItems = $notifications->getCollection();
    $unreadCount = $notificationItems->whereNull('seen_at')->count();
    $generalCount = $notificationItems->where('kind', 'general')->count();
    $directCount = $notificationItems->where('kind', 'system')->count();
@endphp

<div class="space-y-6" x-data="notificationCenter()">
    <section class="grid gap-6 xl:grid-cols-[minmax(0,1.35fr)_minmax(21rem,0.85fr)]">
        <div class="overflow-hidden rounded-[2rem] bg-[radial-gradient(circle_at_top_left,_rgba(255,255,255,0.2),_transparent_35%),linear-gradient(135deg,#1e3a8a_0%,#1d4ed8_45%,#2563eb_100%)] p-6 text-white shadow-playful sm:p-8">
            <div class="flex flex-col gap-6 lg:flex-row lg:items-end lg:justify-between">
                <div class="max-w-2xl">
                    <span class="inline-flex items-center gap-2 rounded-full border border-white/20 bg-white/10 px-4 py-2 text-xs font-black">
                        <i class="fa-solid fa-bell"></i>
                        {{ $isArabic ? 'مركز إشعارات الطالب' : 'Student notification center' }}
                    </span>
                    <h1 class="mt-5 text-3xl font-black md:text-4xl">{{ $isArabic ? 'كل الإشعارات في مكان واحد' : 'All notifications in one place' }}</h1>
                    <p class="mt-3 text-sm leading-7 text-white/85 md:text-base">
                        {{ $isArabic ? 'تابع الرسائل المباشرة والتنبيهات العامة، واعرف ما الجديد بدون ازدحام أو تشتت.' : 'Review direct messages and general alerts in one cleaner, more focused page.' }}
                    </p>
                </div>

                <div class="grid min-w-[16rem] gap-3 sm:grid-cols-3 lg:w-[22rem] lg:grid-cols-1">
                    <div class="rounded-3xl border border-white/15 bg-white/10 p-4 backdrop-blur-sm">
                        <div class="text-xs font-black text-white/70">{{ $isArabic ? 'غير المقروءة' : 'Unread' }}</div>
                        <div class="mt-2 text-3xl font-black font-numbers" x-text="unreadCount">{{ $unreadCount }}</div>
                    </div>
                    <div class="rounded-3xl border border-white/15 bg-white/10 p-4 backdrop-blur-sm">
                        <div class="text-xs font-black text-white/70">{{ $isArabic ? 'إشعارات عامة' : 'General' }}</div>
                        <div class="mt-2 text-3xl font-black font-numbers">{{ $generalCount }}</div>
                    </div>
                    <div class="rounded-3xl border border-white/15 bg-white/10 p-4 backdrop-blur-sm">
                        <div class="text-xs font-black text-white/70">{{ $isArabic ? 'مباشرة' : 'Direct' }}</div>
                        <div class="mt-2 text-3xl font-black font-numbers">{{ $directCount }}</div>
                    </div>
                </div>
            </div>
        </div>

        <div class="student-card p-6">
            <div class="flex items-start justify-between gap-4">
                <div>
                    <h2 class="text-2xl font-black text-zinc-900 dark:text-white">{{ $isArabic ? 'إدارة سريعة' : 'Quick controls' }}</h2>
                    <p class="mt-2 text-sm font-semibold leading-6 text-zinc-500 dark:text-zinc-400">
                        {{ $isArabic ? 'اجعل الصفحة أخف بتنظيف الإشعارات غير المقروءة أو افتح أحدث العناصر مباشرة.' : 'Keep the page light by clearing unread alerts or opening recent items directly.' }}
                    </p>
                </div>
                <div class="flex h-14 w-14 items-center justify-center rounded-2xl bg-primary-light text-primary dark:bg-primary/10 dark:text-primary-container">
                    <i class="fa-solid fa-sliders text-xl"></i>
                </div>
            </div>

            <div class="mt-6 space-y-3">
                <button
                    x-show="unreadCount > 0"
                    @click="markAllAsRead()"
                    :disabled="loading"
                    class="flex w-full items-center justify-between rounded-2xl border border-zinc-200 bg-zinc-50 px-4 py-4 text-start transition hover:border-primary/30 hover:bg-primary-light/20 dark:border-zinc-800 dark:bg-zinc-950 disabled:opacity-60">
                    <div>
                        <div class="text-sm font-black text-zinc-900 dark:text-white">{{ $isArabic ? 'تحديد الكل كمقروء' : 'Mark all as read' }}</div>
                        <div class="mt-1 text-xs text-zinc-500 dark:text-zinc-400">{{ $isArabic ? 'إخفاء حالة التنبيه من العناصر غير المفتوحة.' : 'Clear unread state for all open alerts.' }}</div>
                    </div>
                    <span class="rounded-full bg-primary px-3 py-1 text-xs font-black text-white font-numbers" x-text="unreadCount"></span>
                </button>

                @if ($notificationItems->isNotEmpty())
                    @php $latestNotification = $notificationItems->first(); @endphp
                    <a href="{{ $latestNotification->url }}" class="flex items-center justify-between rounded-2xl border border-zinc-200 bg-zinc-50 px-4 py-4 text-decoration-none transition hover:border-primary/30 hover:bg-primary-light/20 dark:border-zinc-800 dark:bg-zinc-950">
                        <div>
                            <div class="text-sm font-black text-zinc-900 dark:text-white">{{ $isArabic ? 'فتح أحدث إشعار' : 'Open latest notification' }}</div>
                            <div class="mt-1 text-xs text-zinc-500 dark:text-zinc-400">{{ $latestNotification->title }}</div>
                        </div>
                        <i class="fa-solid fa-arrow-up-right-from-square text-primary"></i>
                    </a>
                @endif
            </div>
        </div>
    </section>

    <section class="student-card overflow-hidden">
        <div class="flex flex-col gap-4 border-b border-zinc-200 px-6 py-5 dark:border-zinc-800 lg:flex-row lg:items-center lg:justify-between">
            <div>
                <h2 class="text-xl font-black text-zinc-900 dark:text-white">{{ $isArabic ? 'سجل الإشعارات' : 'Notification feed' }}</h2>
                <p class="mt-1 text-sm text-zinc-500 dark:text-zinc-400">{{ $isArabic ? 'العناصر الأحدث أولاً، مع تمييز واضح للرسائل غير المقروءة.' : 'Newest items first, with a clearer unread state.' }}</p>
            </div>
            <div class="text-sm font-black text-zinc-500 dark:text-zinc-400">
                <span x-text="visibleCount"></span> {{ $isArabic ? 'إشعار' : 'notifications' }}
            </div>
        </div>

        {{-- Filter Tabs --}}
        <div class="flex gap-2 border-b border-zinc-200 px-6 py-3 dark:border-zinc-800">
            <button @click="setFilter('all')"
                :class="filter === 'all' ? 'bg-primary text-white' : 'bg-zinc-100 text-zinc-600 hover:bg-zinc-200 dark:bg-zinc-800 dark:text-zinc-300'"
                class="rounded-full px-4 py-1.5 text-xs font-black transition">
                {{ $isArabic ? 'الكل' : 'All' }}
            </button>
            <button @click="setFilter('unread')"
                :class="filter === 'unread' ? 'bg-primary text-white' : 'bg-zinc-100 text-zinc-600 hover:bg-zinc-200 dark:bg-zinc-800 dark:text-zinc-300'"
                class="rounded-full px-4 py-1.5 text-xs font-black transition">
                {{ $isArabic ? 'غير مقروء' : 'Unread' }}
            </button>
            <button @click="setFilter('read')"
                :class="filter === 'read' ? 'bg-primary text-white' : 'bg-zinc-100 text-zinc-600 hover:bg-zinc-200 dark:bg-zinc-800 dark:text-zinc-300'"
                class="rounded-full px-4 py-1.5 text-xs font-black transition">
                {{ $isArabic ? 'مقروء' : 'Read' }}
            </button>
        </div>

        <div class="space-y-3 p-6">
            @if ($notificationItems->isNotEmpty())
                @foreach ($notificationItems as $notification)
                    @php
                        $isUnread = $notification->seen_at === null;
                        $kindLabel = $notification->kind === 'general'
                            ? ($isArabic ? 'عام' : 'General')
                            : ($isArabic ? 'مباشر' : 'Direct');
                    @endphp

                    <div
                        x-show="shouldShow({{ $isUnread ? 'true' : 'false' }}, '{{ $notification->kind }}')"
                        x-transition:leave="transition ease-in duration-200"
                        x-transition:leave-start="opacity-100 scale-100"
                        x-transition:leave-end="opacity-0 scale-95"
                        x-ref="notif_{{ $notification->kind }}_{{ $notification->id }}"
                        class="flex items-start gap-4 rounded-3xl border p-4 transition {{ $isUnread ? 'border-primary/25 bg-primary-light/20 dark:border-primary/20 dark:bg-primary/10' : 'border-zinc-200 bg-zinc-50/80 dark:border-zinc-800 dark:bg-zinc-950/60' }}"
                        :class="{ 'border-zinc-200 bg-zinc-50/80 dark:border-zinc-800 dark:bg-zinc-950/60': isRead_{{ $notification->kind }}_{{ $notification->id }}, 'border-primary/25 bg-primary-light/20 dark:border-primary/20 dark:bg-primary/10': !isRead_{{ $notification->kind }}_{{ $notification->id }} }"
                        x-data="{ isRead_{{ $notification->kind }}_{{ $notification->id }}: {{ $isUnread ? 'false' : 'true' }} }">

                        <div class="relative flex h-14 w-14 shrink-0 items-center justify-center rounded-2xl bg-primary-light text-primary dark:bg-primary/10 dark:text-primary-container">
                            <i class="fa-solid {{ $notification->kind === 'general' ? 'fa-megaphone' : 'fa-bell' }} text-lg"></i>
                            @if ($isUnread)
                                <span class="absolute -end-1 -top-1 h-3.5 w-3.5 rounded-full bg-secondary ring-2 ring-white dark:ring-zinc-900"
                                    x-show="!isRead_{{ $notification->kind }}_{{ $notification->id }}"></span>
                            @endif
                        </div>

                        <div class="min-w-0 flex-1">
                            <div class="flex flex-wrap items-center justify-between gap-3">
                                <div class="min-w-0">
                                    <a href="{{ $notification->url }}" class="truncate text-base font-black text-zinc-900 hover:text-primary dark:text-white">{{ $notification->title }}</a>
                                    <div class="mt-2 flex flex-wrap items-center gap-2">
                                        <span class="rounded-full bg-white px-3 py-1 text-[11px] font-black text-zinc-500 dark:bg-zinc-900 dark:text-zinc-300">{{ $kindLabel }}</span>
                                        @if ($isUnread)
                                            <span class="rounded-full bg-secondary-light px-3 py-1 text-[11px] font-black text-secondary-dark"
                                                x-show="!isRead_{{ $notification->kind }}_{{ $notification->id }}">
                                                {{ $isArabic ? 'غير مقروء' : 'Unread' }}
                                            </span>
                                        @endif
                                    </div>
                                </div>
                                <div class="flex items-center gap-2">
                                    <span class="text-[11px] font-semibold text-zinc-400 dark:text-zinc-500">{{ $notification->created_at->diffForHumans() }}</span>
                                    {{-- زر mark as read (للإشعارات المباشرة غير المقروءة فقط) --}}
                                    @if ($notification->kind === 'system' && $isUnread)
                                        <button
                                            x-show="!isRead_{{ $notification->kind }}_{{ $notification->id }}"
                                            @click="markAsRead({{ $notification->id }}, $el.closest('[x-data]'), 'isRead_{{ $notification->kind }}_{{ $notification->id }}')"
                                            title="{{ $isArabic ? 'تحديد كمقروء' : 'Mark as read' }}"
                                            class="flex h-8 w-8 items-center justify-center rounded-full bg-zinc-100 text-zinc-500 transition hover:bg-primary hover:text-white dark:bg-zinc-800 dark:text-zinc-400">
                                            <i class="fa-solid fa-check text-xs"></i>
                                        </button>
                                    @endif
                                    {{-- زر الحذف (للإشعارات المباشرة فقط) --}}
                                    @if ($notification->kind === 'system')
                                        <button
                                            @click="deleteNotification({{ $notification->id }}, $el.closest('[x-show]'))"
                                            title="{{ $isArabic ? 'حذف' : 'Delete' }}"
                                            class="flex h-8 w-8 items-center justify-center rounded-full bg-zinc-100 text-zinc-500 transition hover:bg-red-500 hover:text-white dark:bg-zinc-800 dark:text-zinc-400">
                                            <i class="fa-solid fa-trash-can text-xs"></i>
                                        </button>
                                    @endif
                                </div>
                            </div>

                            <p class="mt-3 text-sm leading-7 text-zinc-600 dark:text-zinc-300">{{ $notification->body }}</p>
                        </div>
                    </div>
                @endforeach

                {{-- رسالة عند عدم وجود نتائج للفلتر --}}
                <div x-show="visibleCount === 0" class="rounded-3xl border border-dashed border-zinc-300 p-10 text-center dark:border-zinc-700">
                    <div class="mx-auto flex h-16 w-16 items-center justify-center rounded-3xl bg-zinc-100 text-zinc-500 dark:bg-zinc-800 dark:text-zinc-300">
                        <i class="fa-solid fa-filter-circle-xmark text-2xl"></i>
                    </div>
                    <h3 class="mt-4 text-lg font-black text-zinc-900 dark:text-white">{{ $isArabic ? 'لا توجد إشعارات في هذا التصنيف' : 'No notifications in this filter' }}</h3>
                </div>
            @else
                <div class="rounded-3xl border border-dashed border-zinc-300 p-10 text-center dark:border-zinc-700">
                    <div class="mx-auto flex h-16 w-16 items-center justify-center rounded-3xl bg-zinc-100 text-zinc-500 dark:bg-zinc-800 dark:text-zinc-300">
                        <i class="fa-solid fa-bell-slash text-2xl"></i>
                    </div>
                    <h3 class="mt-4 text-lg font-black text-zinc-900 dark:text-white">{{ $isArabic ? 'لا توجد إشعارات حالياً' : 'No notifications right now' }}</h3>
                    <p class="mt-2 text-sm text-zinc-500 dark:text-zinc-400">{{ $isArabic ? 'عند وصول أي تنبيه جديد سيظهر هنا مباشرة.' : 'Any new alert will appear here as soon as it arrives.' }}</p>
                </div>
            @endif
        </div>

        @if ($notifications->hasPages())
            <div class="border-t border-zinc-200 px-6 py-5 dark:border-zinc-800">
                {{ $notifications->links() }}
            </div>
        @endif
    </section>
</div>

<script>
function notificationCenter() {
    return {
        filter: 'all',
        loading: false,
        unreadCount: {{ $unreadCount }},
        totalCount: {{ $notificationItems->count() }},

        get visibleCount() {
            // نحسب العناصر المرئية بناءً على الفلتر
            let count = 0;
            document.querySelectorAll('[x-ref^="notif_"]').forEach(el => {
                if (el.style.display !== 'none') count++;
            });
            return count;
        },

        setFilter(f) {
            this.filter = f;
        },

        shouldShow(isUnread, kind) {
            if (this.filter === 'all') return true;
            if (this.filter === 'unread') return isUnread;
            if (this.filter === 'read') return !isUnread;
            return true;
        },

        async markAllAsRead() {
            if (this.loading) return;
            this.loading = true;
            try {
                await fetch('{{ route('student.notifications.markAllAsRead') }}', {
                    method: 'POST',
                    headers: {
                        'X-CSRF-TOKEN': '{{ csrf_token() }}',
                        'Accept': 'application/json',
                        'Content-Type': 'application/json',
                    },
                });
                this.unreadCount = 0;
                // تحديث حالة كل الإشعارات في الصفحة
                document.querySelectorAll('[x-data*="isRead_"]').forEach(el => {
                    const alpineData = Alpine.$data(el);
                    Object.keys(alpineData).forEach(key => {
                        if (key.startsWith('isRead_')) alpineData[key] = true;
                    });
                });
            } catch (e) {
                console.error(e);
            } finally {
                this.loading = false;
            }
        },

        async markAsRead(id, el, readKey) {
            try {
                await fetch(`/student/notifications/${id}/mark-as-read`, {
                    method: 'POST',
                    headers: {
                        'X-CSRF-TOKEN': '{{ csrf_token() }}',
                        'Accept': 'application/json',
                    },
                });
                const alpineData = Alpine.$data(el);
                if (alpineData[readKey] !== undefined) {
                    alpineData[readKey] = true;
                }
                if (this.unreadCount > 0) this.unreadCount--;
            } catch (e) {
                console.error(e);
            }
        },

        async deleteNotification(id, el) {
            try {
                const resp = await fetch(`/student/notifications/${id}`, {
                    method: 'DELETE',
                    headers: {
                        'X-CSRF-TOKEN': '{{ csrf_token() }}',
                        'Accept': 'application/json',
                    },
                });
                if (resp.ok) {
                    // إخفاء العنصر
                    if (el) {
                        el.style.transition = 'opacity 0.2s';
                        el.style.opacity = '0';
                        setTimeout(() => { el.style.display = 'none'; }, 200);
                    }
                    this.totalCount--;
                }
            } catch (e) {
                console.error(e);
            }
        },
    };
}
</script>
@endsection