@extends('layouts.main_dashboard.app')

@section('title', __('dashboard.All Courses'))
@section('page_heading', __('dashboard.All Courses'))
@section('page_subtitle', app()->getLocale() === 'ar' ? 'إدارة جميع المساقات وربطها بالمادة والصف والمعلم من شاشة أكثر وضوحًا.' : 'Manage all courses and their subject, class, and teacher links from a clearer screen.')
@section('skip_page_hero', true)

@php
    $isArabic = app()->getLocale() === 'ar';
    $filtersOpenByDefault = request()->hasAny(['subject_id', 'school_class_id', 'teacher']);
    $coursesCollection = $courses->getCollection();
    $assignedTeachers = $coursesCollection->filter(fn ($course) => filled(optional($course->teacher)->name))->count();
    $assignedClasses = $coursesCollection->filter(fn ($course) => filled(optional($course->schoolClass)->name))->count();
    $unassignedTeachers = $coursesCollection->count() - $assignedTeachers;
@endphp

@section('content')
<div class="space-y-6" x-data="{ filtersOpen: {{ $filtersOpenByDefault ? 'true' : 'false' }} }">
    <section class="rounded-xl border border-surface-200 bg-white p-6 shadow-sm dark:border-surface-800 dark:bg-surface-900">
        <div class="flex flex-col gap-5 lg:flex-row lg:items-center lg:justify-between">
            <div class="space-y-2">
                <h2 class="text-2xl font-black tracking-tight text-surface-900 dark:text-white">{{ __('dashboard.All Courses') }}</h2>
                <p class="max-w-2xl text-sm leading-7 text-surface-500 dark:text-surface-400">
                    {{ $isArabic ? 'راجع جميع المساقات مع المادة المرتبطة والصف والمعلم الحالي وإجراءات الإدارة الأساسية.' : 'Review all courses with their subject, class, current teacher, and core management actions.' }}
                </p>
            </div>

            <div class="flex flex-wrap items-center gap-3">
                <div class="inline-flex items-center gap-3 rounded-xl border border-surface-200 bg-surface-50 px-4 py-3 dark:border-surface-700 dark:bg-surface-950">
                    <p class="text-sm font-bold text-surface-500 dark:text-surface-400">{{ $isArabic ? 'إجمالي المساقات' : 'Total courses' }}</p>
                    <p class="text-2xl font-black leading-none text-surface-900 dark:text-white">{{ $courses->total() }}</p>
                </div>
                <a href="{{ route('admin.courses.create') }}" class="inline-flex items-center gap-2 rounded-xl bg-brand-600 px-4 py-2 text-sm font-bold text-white transition hover:bg-brand-700">
                    <i class="fa-solid fa-plus text-xs"></i>
                    <span>{{ __('dashboard.Add New Course') }}</span>
                </a>
            </div>
        </div>
    </section>

    <section class="overflow-hidden rounded-xl border border-surface-200 bg-white shadow-sm dark:border-surface-800 dark:bg-surface-900">
        <div class="border-b border-surface-200 bg-surface-50/80 px-6 py-5 dark:border-surface-800 dark:bg-surface-800/30">
            <div class="flex flex-col gap-4 lg:flex-row lg:items-end lg:justify-between">
                <div class="space-y-1">
                    <p class="text-[11px] font-black uppercase tracking-[0.24em] text-surface-400">{{ $isArabic ? 'سجل المساقات' : 'Courses registry' }}</p>
                    <h2 class="text-xl font-black text-surface-900 dark:text-white">{{ __('dashboard.Courses') }}</h2>
                    <p class="text-sm text-surface-500 dark:text-surface-400">{{ $isArabic ? 'عرض موحد للمساقات مع الربط الأكاديمي والتشغيلي.' : 'A unified view of courses with their academic and operational links.' }}</p>
                </div>

                <div class="grid grid-cols-2 gap-3 sm:grid-cols-4">
                    <div class="rounded-2xl border border-surface-200 bg-white px-4 py-3 dark:border-surface-700 dark:bg-surface-900">
                        <p class="text-[11px] font-bold text-surface-500 dark:text-surface-400">{{ $isArabic ? 'داخل الصفحة' : 'Visible now' }}</p>
                        <p class="mt-1 text-xl font-black leading-none text-surface-900 dark:text-white">{{ $coursesCollection->count() }}</p>
                    </div>
                    <div class="rounded-2xl border border-surface-200 bg-white px-4 py-3 dark:border-surface-700 dark:bg-surface-900">
                        <p class="text-[11px] font-bold text-surface-500 dark:text-surface-400">{{ $isArabic ? 'بمعلم معيّن' : 'With teacher' }}</p>
                        <p class="mt-1 text-xl font-black leading-none text-surface-900 dark:text-white">{{ $assignedTeachers }}</p>
                    </div>
                    <div class="rounded-2xl border border-surface-200 bg-white px-4 py-3 dark:border-surface-700 dark:bg-surface-900">
                        <p class="text-[11px] font-bold text-surface-500 dark:text-surface-400">{{ $isArabic ? 'بصف معيّن' : 'With class' }}</p>
                        <p class="mt-1 text-xl font-black leading-none text-surface-900 dark:text-white">{{ $assignedClasses }}</p>
                    </div>
                    <div class="rounded-2xl border border-surface-200 bg-white px-4 py-3 dark:border-surface-700 dark:bg-surface-900">
                        <p class="text-[11px] font-bold text-surface-500 dark:text-surface-400">{{ $isArabic ? 'بدون معلم' : 'Without teacher' }}</p>
                        <p class="mt-1 text-xl font-black leading-none text-surface-900 dark:text-white">{{ $unassignedTeachers }}</p>
                    </div>
                </div>
            </div>
        </div>

        <div class="border-b border-surface-200 px-6 py-5 dark:border-surface-800">
            <div class="flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between">
                <div class="space-y-1">
                    <p class="text-sm font-black text-surface-900 dark:text-white">{{ $isArabic ? 'تصفية المساقات' : 'Filter courses' }}</p>
                    <p class="text-sm text-surface-500 dark:text-surface-400">{{ $isArabic ? 'ابحث بحسب المادة أو الصف أو المعلم لتقليل نطاق العرض.' : 'Filter by subject, class, or teacher to narrow the list.' }}</p>
                </div>

                <button type="button" @click="filtersOpen = !filtersOpen" class="inline-flex h-11 items-center gap-2 rounded-xl border border-surface-200 bg-white px-4 text-sm font-bold text-surface-700 transition hover:bg-surface-50 dark:border-surface-700 dark:bg-surface-900 dark:text-surface-200 dark:hover:bg-surface-800">
                    <i class="fa-solid" :class="filtersOpen ? 'fa-sliders' : 'fa-filter'"></i>
                    <span>{{ __('dashboard.Filter') }}</span>
                </button>
            </div>
        </div>

        <div x-show="filtersOpen" x-collapse class="border-b border-surface-200 px-6 py-6 dark:border-surface-800">
            <form action="{{ route('admin.courses.index') }}" method="GET" class="grid gap-4 md:grid-cols-2 xl:grid-cols-4">
                <select name="subject_id" class="rounded-xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                    <option value="">{{ __('dashboard.Select Subject') }}</option>
                    @foreach($subjects as $subject)
                        <option value="{{ $subject->id }}" @selected(request('subject_id') == $subject->id)>{{ $subject->grade->stage->name ?? '' }} - {{ $subject->grade->name ?? '' }} - {{ $subject->name }}</option>
                    @endforeach
                </select>
                <select name="school_class_id" class="rounded-xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                    <option value="">{{ __('dashboard.Select School Class') }}</option>
                    @foreach($schoolClasses as $class)
                        <option value="{{ $class->id }}" @selected(request('school_class_id') == $class->id)>{{ $class->grade->stage->name }} - {{ $class->grade->name }} - {{ $class->name }}</option>
                    @endforeach
                </select>
                <select name="teacher" class="rounded-xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                    <option value="">{{ __('dashboard.Select Teacher') }}</option>
                    @foreach($teachers as $teacher)
                        <option value="{{ $teacher->id }}" @selected(request('teacher') == $teacher->id)>{{ $teacher->first_name }} {{ $teacher->last_name }}</option>
                    @endforeach
                </select>
                <div class="flex gap-3">
                    <button type="submit" class="inline-flex w-full items-center justify-center gap-2 rounded-xl bg-brand-600 px-4 py-3 text-sm font-bold text-white transition hover:bg-brand-700">
                        <i class="fa-solid fa-magnifying-glass text-xs"></i>
                        <span>{{ __('dashboard.Filter') }}</span>
                    </button>
                    <a href="{{ route('admin.courses.index') }}" class="inline-flex items-center justify-center rounded-xl border border-surface-200 px-4 py-3 text-sm font-bold text-surface-600 transition hover:bg-surface-50 dark:border-surface-700 dark:text-surface-300 dark:hover:bg-surface-800">{{ __('dashboard.Reset') }}</a>
                </div>
            </form>
        </div>

        @if($courses->isEmpty())
            <div class="px-6 py-16 text-center">
                <div class="mx-auto flex h-20 w-20 items-center justify-center rounded-full bg-brand-50 text-brand-600 dark:bg-brand-500/10 dark:text-brand-300">
                    <i class="fa-solid fa-book-open-reader text-3xl"></i>
                </div>
                <h3 class="mt-6 text-xl font-black text-surface-900 dark:text-white">{{ __('dashboard.No data found') }}</h3>
                <p class="mt-3 text-sm text-surface-500 dark:text-surface-400">{{ $isArabic ? 'لا توجد مساقات مطابقة للفلاتر الحالية.' : 'No courses match the current filters.' }}</p>
            </div>
        @else
            <div class="overflow-x-auto" x-data="{
                selectedIds: [],
                selectAll: false,
                allIds: {{ $courses->pluck('id')->toJson() }}
            }">
                <x-bulk-action-bar
                    :actions="[
                        ['value' => 'delete',    'label' => app()->getLocale() === 'ar' ? 'حذف'       : 'Delete'],
                        ['value' => 'publish',   'label' => app()->getLocale() === 'ar' ? 'نشر'       : 'Publish'],
                        ['value' => 'unpublish', 'label' => app()->getLocale() === 'ar' ? 'إلغاء النشر' : 'Unpublish'],
                    ]"
                    :route="route('admin.courses.bulk-action')"
                />
                <table class="min-w-full divide-y divide-surface-200 dark:divide-surface-800">
                    <thead class="bg-surface-50/80 dark:bg-surface-800/40">
                        <tr class="text-right text-xs font-black uppercase tracking-[0.2em] text-surface-500 dark:text-surface-400">
                            <th class="px-4 py-4 w-10">
                                <input type="checkbox" x-model="selectAll"
                                       @change="selectedIds = selectAll ? [...allIds] : []"
                                       class="rounded border-surface-300 text-brand-600 focus:ring-brand-500 dark:border-surface-600">
                            </th>
                            <th class="px-6 py-4">{{ $isArabic ? 'المساق' : 'Course' }}</th>
                            <th class="px-6 py-4">{{ $isArabic ? 'المادة المرتبطة' : 'Linked subject' }}</th>
                            <th class="px-6 py-4">{{ $isArabic ? 'الصف' : 'Class' }}</th>
                            <th class="px-6 py-4">{{ $isArabic ? 'المعلم' : 'Teacher' }}</th>
                            <th class="px-6 py-4 text-left">{{ __('dashboard.Actions') }}</th>
                        </tr>
                    </thead>
                    <tbody class="divide-y divide-surface-200 dark:divide-surface-800">
                        @foreach($courses as $course)
                            <tr class="transition hover:bg-surface-50/80 dark:hover:bg-surface-800/20">
                                <td class="px-4 py-5">
                                    <input type="checkbox" :value="{{ $course->id }}" x-model="selectedIds"
                                           class="rounded border-surface-300 text-brand-600 focus:ring-brand-500 dark:border-surface-600">
                                </td>
                                <td class="px-6 py-5">
                                    <div class="flex items-center gap-4">
                                        <div class="flex h-12 w-12 items-center justify-center overflow-hidden rounded-xl bg-brand-50 text-brand-700 dark:bg-brand-500/10 dark:text-brand-300">
                                            @if($course->image)
                                                <img src="{{ $course->image }}" alt="{{ $course->name }}" class="h-full w-full object-cover">
                                            @else
                                                <i class="fa-solid fa-book-open-reader"></i>
                                            @endif
                                        </div>
                                        <div class="min-w-0">
                                            <p class="text-sm font-black text-surface-900 dark:text-white">{{ $course->name }}</p>
                                            <p class="mt-1 text-xs text-surface-500 dark:text-surface-400">#{{ $course->id }}</p>
                                        </div>
                                    </div>
                                </td>
                                <td class="px-6 py-5 text-sm text-surface-600 dark:text-surface-300">{{ collect([$course->subject->grade->stage->name ?? null, $course->subject->grade->name ?? null, $course->subject->name ?? null])->filter()->implode(' / ') ?: '-' }}</td>
                                <td class="px-6 py-5">
                                    @if($course->schoolClass?->name)
                                        <span class="inline-flex rounded-full border border-surface-200 px-3 py-1 text-xs font-bold text-surface-700 dark:border-surface-700 dark:text-surface-200">{{ $course->schoolClass->name }}</span>
                                    @else
                                        <span class="inline-flex rounded-full bg-surface-100 px-3 py-1 text-xs font-bold text-surface-600 dark:bg-surface-800 dark:text-surface-300">{{ __('dashboard.Not assigned yet') }}</span>
                                    @endif
                                </td>
                                <td class="px-6 py-5">
                                    @if($course->teacher?->name)
                                        <span class="inline-flex rounded-full bg-brand-50 px-3 py-1 text-xs font-bold text-brand-700 dark:bg-brand-500/10 dark:text-brand-300">{{ $course->teacher->name }}</span>
                                    @else
                                        <span class="inline-flex rounded-full bg-surface-100 px-3 py-1 text-xs font-bold text-surface-600 dark:bg-surface-800 dark:text-surface-300">{{ __('dashboard.Not assigned yet') }}</span>
                                    @endif
                                </td>
                                <td class="px-6 py-5">
                                    <div class="flex justify-end">
                                        <div class="relative" x-data="{ open: false }">
                                            <button @click="open = !open" @click.outside="open = false" type="button"
                                                    class="w-8 h-8 flex items-center justify-center rounded-lg bg-surface-100 dark:bg-surface-800 text-surface-500 hover:bg-surface-200 dark:hover:bg-surface-700 transition-colors">
                                                <i class="fa-solid fa-ellipsis-vertical text-xs"></i>
                                            </button>
                                            <div x-show="open" x-cloak x-transition
                                                 class="absolute end-0 z-50 mt-1 w-44 rounded-xl border border-surface-200 dark:border-surface-700 bg-white dark:bg-surface-900 shadow-lg overflow-hidden">
                                                <a href="{{ route('admin.courses.show', $course->id) }}" class="flex items-center gap-3 px-4 py-2.5 text-sm text-surface-700 dark:text-surface-300 hover:bg-surface-50 dark:hover:bg-surface-800 transition-colors">
                                                    <i class="fa-solid fa-eye w-4 text-center text-surface-400 text-xs"></i>{{ __('dashboard.View') }}
                                                </a>
                                                <a href="{{ route('admin.courses.edit', $course->id) }}" class="flex items-center gap-3 px-4 py-2.5 text-sm text-surface-700 dark:text-surface-300 hover:bg-surface-50 dark:hover:bg-surface-800 transition-colors">
                                                    <i class="fa-solid fa-pen-to-square w-4 text-center text-surface-400 text-xs"></i>{{ __('dashboard.Edit') }}
                                                </a>
                                                <div class="border-t border-surface-100 dark:border-surface-800"></div>
                                                <form method="POST" action="{{ route('admin.courses.destroy', $course->id) }}" onsubmit="return confirm('{{ __('dashboard.Are you sure you want to delete this item?') }}')">
                                                    @csrf @method('DELETE')
                                                    <button type="submit" class="w-full flex items-center gap-3 px-4 py-2.5 text-sm text-red-600 dark:text-red-400 hover:bg-red-50 dark:hover:bg-red-950/30 transition-colors">
                                                        <i class="fa-solid fa-trash w-4 text-center text-xs"></i>{{ __('dashboard.Delete') }}
                                                    </button>
                                                </form>
                                            </div>
                                        </div>
                                    </div>
                                </td>
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>

            @if ($courses->hasPages())
                <div class="border-t border-surface-200 px-6 py-5 dark:border-surface-800">
                    {{ $courses->appends(request()->query())->links('pagination::simple-tailwind') }}
                </div>
            @endif
        @endif
    </section>
</div>
@endsection