@extends('layouts.examiner')
@section('title', 'Upload Schedule')

@section('content')
<div class="d-sm-flex align-items-center justify-content-between mb-4">
    <h1 class="h3 mb-0 text-gray-800">Upload Schedule</h1>
    <a href="{{ route('examiner.schedule.index') }}" class="btn btn-sm btn-secondary">
        <i class="fas fa-list mr-1"></i> View Schedule
    </a>
</div>

@if(isset($results))
{{-- Results after upload --}}
<div class="card shadow mb-4">
    <div class="card-header py-3 d-flex justify-content-between align-items-center">
        <h6 class="m-0 font-weight-bold text-primary">Upload Results</h6>
        <a href="{{ route('examiner.schedule.upload') }}" class="btn btn-sm btn-secondary">Upload Another</a>
    </div>
    <div class="card-body p-0">
        <div class="table-responsive">
            <table class="table table-sm table-bordered mb-0">
                <thead class="thead-light">
                    <tr><th>#</th><th>Reg No</th><th>Name / Reason</th><th>Time</th><th>Venue</th><th>Status</th></tr>
                </thead>
                <tbody>
                @foreach($results ?? [] as $i => $r)
                <tr>
                    <td>{{ $i + 1 }}</td>
                    <td>{{ $r['reg_no'] }}</td>
                    <td>{{ $r['name'] }}</td>
                    <td>{{ $r['time'] }}</td>
                    <td>{{ $r['venue'] }}</td>
                    <td><span class="badge badge-success">Scheduled</span></td>
                </tr>
                @endforeach
                @foreach($failed ?? [] as $i => $f)
                <tr class="table-danger">
                    <td>{{ count($results ?? []) + $i + 1 }}</td>
                    <td>{{ $f['reg_no'] }}</td>
                    <td>{{ $f['reason'] }}</td>
                    <td>—</td>
                    <td>—</td>
                    <td><span class="badge badge-danger">Failed</span></td>
                </tr>
                @endforeach
                </tbody>
            </table>
        </div>
    </div>
</div>
@else
{{-- Upload form --}}
<div class="row">
    <div class="col-lg-7">
        <div class="card shadow mb-4">
            <div class="card-header py-3">
                <h6 class="m-0 font-weight-bold text-primary">Upload Excel File</h6>
            </div>
            <div class="card-body">
                @if(session('error'))
                <div class="alert alert-danger">{{ session('error') }}</div>
                @endif

                <form method="POST" action="{{ route('examiner.schedule.upload.store') }}"
                      enctype="multipart/form-data">
                    @csrf
                    <div class="form-group">
                        <label>Excel File (.xlsx / .xls) <span class="text-danger">*</span></label>
                        <input type="file" name="file" class="form-control @error('file') is-invalid @enderror"
                               accept=".xlsx,.xls" required>
                        @error('file')<div class="invalid-feedback">{{ $message }}</div>@enderror
                    </div>
                    <button type="submit" class="btn btn-primary">
                        <i class="fas fa-upload mr-1"></i> Upload
                    </button>
                    <a href="#" data-toggle="modal" data-target="#formatModal" class="ml-2 small">View Format?</a>
                </form>
            </div>
        </div>
    </div>
</div>

{{-- Format modal --}}
<div class="modal fade" id="formatModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-xl" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Excel Format</h5>
                <button type="button" class="close" data-dismiss="modal"><span>&times;</span></button>
            </div>
            <div class="modal-body">
                <table class="table table-bordered table-sm">
                    <thead class="thead-light">
                        <tr><th>A — SN</th><th>B — REG NUMBER</th><th>C — NAME</th><th>D — DEPARTMENT</th><th>E — TIME</th><th>F — VENUE</th></tr>
                    </thead>
                    <tbody>
                        <tr><td>1</td><td>DUFUHS/MDS/2024/00191</td><td>John Doe</td><td>COMPUTER ENGINEERING</td><td>Friday, 27th March, 2026, 9:00 - 9:30am</td><td>ONLINE</td></tr>
                        <tr><td>2</td><td>DUFUHS/MDS/2024/00192</td><td>Jane Smith</td><td>COMPUTER ENGINEERING</td><td>Friday, 27th March, 2026, 9:00 - 9:30am</td><td>ONLINE</td></tr>
                    </tbody>
                </table>
                <p class="small text-muted mb-0">Row 1 is the header (skipped). Name and Department are optional — if left blank they're pulled from the candidate record. Existing entries for the same reg no are updated.</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-primary" data-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div>
@endif
@endsection