@extends('layouts.admin')
@section('title', '班級管理')
@section('content')
<div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-4 mb-6">
    <form method="GET" class="flex gap-2">
        <select name="school_id" onchange="this.form.submit()" class="px-4 py-2 rounded-lg border-2 border-gray-200 dark:border-slate-700 bg-white dark:bg-slate-800 text-gray-900 dark:text-white text-sm">
            <option value="">所有學校</option>
            @foreach($schools as $s)<option value="{{ $s->id }}" {{ request('school_id') == $s->id ? 'selected' : '' }}>{{ $s->name }}</option>@endforeach
        </select>
    </form>
    <a href="{{ route('admin.classes.create') }}" class="px-4 py-2 bg-green-600 text-white rounded-lg text-sm hover:bg-green-700 font-medium">+ 新增班級</a>
</div>

@include('components.pagination-bar', ['paginator' => $classes])

<div class="bg-white dark:bg-slate-900 rounded-xl shadow-lg border border-gray-100 dark:border-slate-800 overflow-hidden mt-4">
    <table class="w-full text-sm">
        <thead class="bg-gray-50 dark:bg-slate-800"><tr>
            <th class="px-4 py-3 text-left font-semibold text-gray-600 dark:text-gray-300">學校</th>
            <th class="px-4 py-3 text-left font-semibold text-gray-600 dark:text-gray-300">年級</th>
            <th class="px-4 py-3 text-left font-semibold text-gray-600 dark:text-gray-300">班級</th>
            <th class="px-4 py-3 text-left font-semibold text-gray-600 dark:text-gray-300">班主任</th>
            <th class="px-4 py-3 text-left font-semibold text-gray-600 dark:text-gray-300">學生數</th>
            <th class="px-4 py-3 text-left font-semibold text-gray-600 dark:text-gray-300">操作</th>
        </tr></thead>
        <tbody>
        @forelse($classes as $c)
        <tr class="border-t border-gray-100 dark:border-slate-800 hover:bg-gray-50 dark:hover:bg-slate-800/50">
            <td class="px-4 py-3 text-gray-600 dark:text-gray-400">{{ $c->school->name }}</td>
            <td class="px-4 py-3 text-gray-600 dark:text-gray-400">{{ $c->grade->name }}</td>
            <td class="px-4 py-3 font-medium text-gray-900 dark:text-white">{{ $c->name }}</td>
            <td class="px-4 py-3 text-gray-600 dark:text-gray-400">{{ $c->homeroomTeacher->name ?? '-' }}</td>
            <td class="px-4 py-3 text-gray-600 dark:text-gray-400">{{ $c->current_students_count }}</td>
            <td class="px-4 py-3 flex gap-2">
                <a href="{{ route('admin.classes.edit', $c) }}" class="text-blue-600 hover:text-blue-800 text-sm font-medium">編輯</a>
                <form action="{{ route('admin.classes.destroy', $c) }}" method="POST" onsubmit="return confirm('確定刪除？')">@csrf @method('DELETE')<button class="text-red-600 hover:text-red-800 text-sm font-medium">刪除</button></form>
            </td>
        </tr>
        @empty
        <tr><td colspan="6" class="px-4 py-8 text-center text-gray-500">尚無班級資料</td></tr>
        @endforelse
        </tbody>
    </table>
</div>
<div class="mt-4">@include('components.pagination-bar', ['paginator' => $classes])</div>
@endsection