@extends('layouts.school')

@section('title', 'Grading System')
@section('header', 'Grading System')

@section('content')
    <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
        <div class="lg:col-span-2 rounded-xl bg-white shadow-sm ring-1 ring-gray-900/5 overflow-hidden">
            <div class="border-b border-gray-200 px-6 py-4 flex items-center justify-between">
                <h3 class="font-display font-semibold text-gray-900">Grade Bands</h3>
                @if($grades->isEmpty())
                    <form method="POST" action="{{ route('school.exams.seed-grades', request()->route('schoolId')) }}">
                        @csrf
                        <button type="submit" class="rounded-lg border border-primary-200 bg-primary-50 px-4 py-2 text-sm font-medium text-primary-700 hover:bg-primary-100">Load Default Bands (WAEC)</button>
                    </form>
                @endif
            </div>
            <table class="min-w-full divide-y divide-gray-200">
                <thead class="bg-gray-50">
                    <tr>
                        <th class="px-6 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Grade</th>
                        <th class="px-6 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Name</th>
                        <th class="px-6 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Range (%)</th>
                        <th class="px-6 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Remark</th>
                        <th class="px-6 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Point</th>
                        <th class="px-6 py-3"></th>
                    </tr>
                </thead>
                <tbody class="divide-y divide-gray-100">
                    @forelse($grades as $grade)
                        <tr class="hover:bg-gray-50">
                            <td class="px-6 py-4 text-sm font-bold text-gray-900">{{ $grade->grade_letter }}</td>
                            <td class="px-6 py-4 text-sm text-gray-600">{{ $grade->name }}</td>
                            <td class="px-6 py-4 text-sm text-gray-600">{{ $grade->min_marks }}% &ndash; {{ $grade->max_marks }}%</td>
                            <td class="px-6 py-4 text-sm text-gray-600">{{ $grade->remark ?? '-' }}</td>
                            <td class="px-6 py-4 text-sm text-gray-600">{{ $grade->grade_point ?? '-' }}</td>
                            <td class="px-6 py-4 text-right">
                                <form method="POST" action="{{ route('school.exams.destroy-grade', [request()->route('schoolId'), $grade->id]) }}" onsubmit="return confirm('Remove this grade band?')">
                                    @csrf @method('DELETE')
                                    <button type="submit" class="text-sm font-medium text-red-600 hover:text-red-800">Remove</button>
                                </form>
                            </td>
                        </tr>
                    @empty
                        <tr><td colspan="6" class="px-6 py-12 text-center text-sm text-gray-500">No grade bands configured. Add one below or load the default WAEC bands.</td></tr>
                    @endforelse
                </tbody>
            </table>
        </div>

        <div class="rounded-xl bg-white shadow-sm ring-1 ring-gray-900/5 p-6 h-fit">
            <h3 class="font-display font-semibold text-gray-900 mb-4">Add Grade Band</h3>
            <form method="POST" action="{{ route('school.exams.store-grade', request()->route('schoolId')) }}" class="space-y-4">
                @csrf
                <div>
                    <label class="block text-sm font-medium text-gray-700">Grade Letter *</label>
                    <input type="text" name="grade_letter" value="{{ old('grade_letter') }}" required maxlength="5" placeholder="e.g. A1" class="mt-1 block w-full rounded-lg border border-gray-300 px-3 py-2.5 text-sm shadow-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500">
                    @error('grade_letter') <p class="mt-1 text-sm text-red-600">{{ $message }}</p> @enderror
                </div>
                <div>
                    <label class="block text-sm font-medium text-gray-700">Name *</label>
                    <input type="text" name="name" value="{{ old('name') }}" required placeholder="e.g. Excellent" class="mt-1 block w-full rounded-lg border border-gray-300 px-3 py-2.5 text-sm shadow-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500">
                    @error('name') <p class="mt-1 text-sm text-red-600">{{ $message }}</p> @enderror
                </div>
                <div class="grid grid-cols-2 gap-4">
                    <div>
                        <label class="block text-sm font-medium text-gray-700">Min % *</label>
                        <input type="number" name="min_marks" value="{{ old('min_marks') }}" required step="0.01" min="0" max="100" class="mt-1 block w-full rounded-lg border border-gray-300 px-3 py-2.5 text-sm shadow-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500">
                        @error('min_marks') <p class="mt-1 text-sm text-red-600">{{ $message }}</p> @enderror
                    </div>
                    <div>
                        <label class="block text-sm font-medium text-gray-700">Max % *</label>
                        <input type="number" name="max_marks" value="{{ old('max_marks') }}" required step="0.01" min="0" max="100" class="mt-1 block w-full rounded-lg border border-gray-300 px-3 py-2.5 text-sm shadow-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500">
                        @error('max_marks') <p class="mt-1 text-sm text-red-600">{{ $message }}</p> @enderror
                    </div>
                </div>
                <div>
                    <label class="block text-sm font-medium text-gray-700">Remark</label>
                    <input type="text" name="remark" value="{{ old('remark') }}" maxlength="255" class="mt-1 block w-full rounded-lg border border-gray-300 px-3 py-2.5 text-sm shadow-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500">
                    @error('remark') <p class="mt-1 text-sm text-red-600">{{ $message }}</p> @enderror
                </div>
                <div>
                    <label class="block text-sm font-medium text-gray-700">Grade Point</label>
                    <input type="number" name="grade_point" value="{{ old('grade_point') }}" min="1" max="9" class="mt-1 block w-full rounded-lg border border-gray-300 px-3 py-2.5 text-sm shadow-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500">
                    @error('grade_point') <p class="mt-1 text-sm text-red-600">{{ $message }}</p> @enderror
                </div>
                <button type="submit" class="w-full rounded-lg bg-primary-600 px-6 py-2.5 text-sm font-semibold text-white shadow-sm hover:bg-primary-700">Add Grade Band</button>
            </form>
        </div>
    </div>
@endsection