@extends('admin.layout.app')

@section('body')
<div class="card card-page p-3 shadow-sm">

    <div class="d-flex justify-content-between align-items-start flex-wrap gap-2 mb-3">
        <div>
            <h4 class="mb-1">{{ __('admin.assignments') }}</h4>
            <small class="text-muted">{{ __('admin.create_and_manage_assignments_per_course') }}</small>
        </div>

        <a href="{{ route('assignments.create',['course_id'=>$course_id]) }}" class="btn btn-primary">
            <i class="fas fa-plus me-2"></i> {{ __('admin.new_assignment') }}
        </a>
    </div>

    @if(session('msg'))
        <div class="alert alert-info">{{ session('msg') }}</div>
    @endif

    {{-- Filters --}}
    <form method="GET" class="row g-2 align-items-end mb-3">
        <div class="col-md-4">
            <label class="form-label mb-0 small">{{ __('admin.search') }}</label>
            <input name="q" value="{{ $q }}" class="form-control" placeholder="{{ __('admin.search_title') }}">
        </div>

        <div class="col-md-5">
            <label class="form-label mb-0 small">{{ __('admin.course') }}</label>
            <select name="course_id" class="form-select">
                <option value="">{{ __('admin.all_courses') }}</option>
                @foreach($courses as $c)
                    <option value="{{ $c->id }}" @selected((string)$course_id === (string)$c->id)>
                        {{ $c->title }} @if($c->code) ({{ $c->code }}) @endif
                    </option>
                @endforeach
            </select>
        </div>

        <div class="col-md-3">
            <label class="form-label mb-0 small">{{ __('admin.due') }}</label>
            <select name="due" class="form-select">
                <option value="">{{ __('admin.all_2') }}</option>
                <option value="upcoming" @selected($due==='upcoming')>{{ __('admin.upcoming') }}</option>
                <option value="overdue" @selected($due==='overdue')>{{ __('admin.overdue') }}</option>
            </select>
        </div>

        <div class="col-12 d-flex gap-2">
            <button class="btn btn-outline-primary">
                <i class="fas fa-filter me-1"></i> {{ __('admin.filter') }}
            </button>
            <a href="{{ route('assignments.index') }}" class="btn btn-outline-secondary">{{ __('admin.reset') }}</a>
        </div>
    </form>

    <div class="table-responsive">
        <table class="table table-hover align-middle">
            <thead class="table-light">
                <tr>
                    <th style="width:90px;">#</th>
                    <th>{{ __('admin.title') }}</th>
                    <th style="width:260px;">{{ __('admin.course') }}</th>
                    <th style="width:180px;">{{ __('admin.due') }}</th>
                    <th style="width:120px;">{{ __('admin.max') }}</th>
                    <th style="width:200px;">{{ __('admin.created_by_3') }}</th>
                    <th style="width:180px;">{{ __('admin.actions') }}</th>
                </tr>
            </thead>
            <tbody>
                @forelse($assignments as $a)
                    @php
                        $isOver = $a->due_at && $a->due_at->isPast();
                    @endphp
                    <tr>
                        <td>{{ $a->id }}</td>
                        <td class="fw-semibold">
                            {{ $a->title }}
                            <div class="small text-muted">{{ __('admin.created_2') }}: {{ $a->created_at?->format('Y-m-d') }}</div>
                        </td>
                        <td>
                            <span class="badge bg-light text-dark border">
                                {{ $a->course?->title ?? '—' }}
                                @if($a->course?->code) ({{ $a->course->code }}) @endif
                            </span>
                        </td>
                        <td>
                            @if($a->due_at)
                                <span class="badge {{ $isOver ? 'bg-danger' : 'bg-success' }}">
                                    {{ $a->due_at->format('Y-m-d H:i') }}
                                </span>
                            @else
                                <span class="badge bg-secondary">{{ __('admin.no_due') }}</span>
                            @endif
                        </td>
                        <td>
                            <span class="badge bg-info">{{ $a->max_grade ?? '—' }}</span>
                        </td>
                        <td class="text-muted">
                            {{ $a->creator?->name ?? '—' }}
                            <div class="small">{{ $a->creator?->email ?? '' }}</div>
                        </td>
                        <td class="d-flex gap-1">
                            <a class="btn btn-sm btn-outline-info" href="{{ route('assignments.show',$a->id) }}">
                                <i class="far fa-eye"></i>
                            </a>
                            <a class="btn btn-sm btn-outline-primary" href="{{ route('assignments.edit',$a->id) }}">
                                <i class="far fa-edit"></i>
                            </a>
                            <form action="{{ route('assignments.destroy',$a->id) }}" method="POST"
                                  onsubmit="return confirm('{{ __('admin.delete_this_assignment') }}');">
                                @csrf
                                @method('DELETE')
                                <button class="btn btn-sm btn-outline-danger"><i class="far fa-trash-alt"></i></button>
                            </form>
                        </td>
                    </tr>
                @empty
                    <tr>
                        <td colspan="7" class="text-center p-4">
                            <div class="text-muted">
                                <i class="fas fa-info-circle me-1"></i> {{ __('admin.no_assignments_found') }}
                            </div>
                            <div class="mt-2">
                                <a href="{{ route('assignments.create') }}" class="btn btn-sm btn-primary">
                                    <i class="fas fa-plus me-1"></i> {{ __('admin.add_first_assignment') }}
                                </a>
                            </div>
                        </td>
                    </tr>
                @endforelse
            </tbody>
        </table>
    </div>

    <div class="mt-3">{{ $assignments->withQueryString()->links('pagination::bootstrap-4') }}</div>
</div>
@endsection