@extends('admin.layouts.app')
@section('title','Presentation Uploads')
@section('page-title','Presentation Uploads')
@section('page-subtitle','Review paper presentations and invited speaker materials')
@section('content')

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

<form method="GET" class="mb-3">
    <div class="row g-2 align-items-end">
        <div class="col-md-2">
            <label class="form-label small">Conference</label>
            <select name="conference_id" class="form-select" onchange="this.form.submit()">
                <option value="">All Conferences</option>
                @foreach($conferences as $conf)
                    <option value="{{ $conf->id }}" @selected($conferenceId == $conf->id)>{{ $conf->name }}</option>
                @endforeach
            </select>
        </div>
        <div class="col-md-2">
            <label class="form-label small">Type</label>
            <select name="type" class="form-select" onchange="this.form.submit()">
                <option value="">All</option>
                <option value="paper" @selected($type === 'paper')>Paper</option>
                <option value="speaker" @selected($type === 'speaker')>Speaker</option>
            </select>
        </div>
        <div class="col-md-2">
            <label class="form-label small">Upload Status</label>
            <select name="upload_status" class="form-select" onchange="this.form.submit()">
                <option value="">All</option>
                @foreach(['not_uploaded','uploaded','replaced'] as $s)
                    <option value="{{ $s }}" @selected($uploadStatus === $s)>{{ str_replace('_', ' ', ucfirst($s)) }}</option>
                @endforeach
            </select>
        </div>
        <div class="col-md-2">
            <label class="form-label small">Approval Status</label>
            <select name="approval_status" class="form-select" onchange="this.form.submit()">
                <option value="">All</option>
                @foreach(['pending','approved','rejected'] as $s)
                    <option value="{{ $s }}" @selected($approvalStatus === $s)>{{ ucfirst($s) }}</option>
                @endforeach
            </select>
        </div>
        <div class="col-md-4 text-end">
            @if($conferenceId)
                <a href="{{ route('admin.presentations.download-zip', ['conference_id' => $conferenceId]) }}" class="btn btn-outline-green"><i class="fa fa-file-zipper me-1"></i>Download ZIP</a>
            @endif
            <a href="{{ route('admin.presentations.export', ['conference_id' => $conferenceId]) }}" class="btn btn-outline-green"><i class="fa fa-download me-1"></i>Export CSV</a>
            <a href="{{ route('admin.conference-speakers.index', ['conference_id' => $conferenceId]) }}" class="btn btn-outline-secondary">Manage Speakers</a>
        </div>
    </div>
</form>

<div class="row g-3 mb-4">
    <div class="col-md-4"><div class="cardx metric"><small>Paper Presenters Yet to Upload</small><h3>{{ number_format($missingCount) }}</h3></div></div>
    <div class="col-md-4"><div class="cardx metric"><small>Speakers Yet to Upload</small><h3>{{ number_format($speakersWithoutUpload) }}</h3></div></div>
    <div class="col-md-4"><div class="cardx metric"><small>Pending Speaker Approvals</small><h3>{{ number_format($pendingSpeakerApprovals) }}</h3></div></div>
</div>

<div class="cardx p-4">
    <div class="table-responsive">
        <table class="table">
            <thead><tr><th>Type</th><th>Presenter</th><th>Title</th><th>Conference</th><th>Upload</th><th>Approval</th><th>Uploaded</th><th>Actions</th></tr></thead>
            <tbody>
                @forelse($uploadItems as $row)
                    @if($row['type'] === 'paper')
                        @php $p = $row['presentation']; @endphp
                        <tr>
                            <td><span class="badge bg-primary">Paper</span></td>
                            <td>{{ $p->user?->name }}</td>
                            <td>{{ Str::limit($p->presentation_title ?? $p->paper?->title, 40) }}</td>
                            <td>{{ $p->conference?->short_name ?? $p->conference?->name }}</td>
                            <td>{{ str_replace('_', ' ', ucfirst($p->upload_status)) }}</td>
                            <td><span class="badge badge-soft">{{ ucfirst($p->approval_status) }}</span></td>
                            <td>{{ $p->uploaded_at?->format('M d, Y') ?? '—' }}</td>
                            <td>
                                <a class="btn btn-sm btn-outline-green" href="{{ route('admin.presentations.show', $p) }}">View</a>
                                @if($p->approval_status === 'pending' && in_array($p->upload_status, ['uploaded','replaced']))
                                    <a class="btn btn-sm btn-green" href="{{ route('admin.presentations.review', $p) }}">Review</a>
                                @endif
                            </td>
                        </tr>
                    @else
                        @php $s = $row['speaker']; @endphp
                        <tr>
                            <td><span class="badge bg-info text-dark">Speaker</span></td>
                            <td>{{ $s->user?->name }}</td>
                            <td>{{ Str::limit($s->presentation_title ?? '—', 40) }}</td>
                            <td>{{ $s->conference?->short_name ?? $s->conference?->name }}</td>
                            <td>{{ str_replace('_', ' ', ucfirst($s->upload_status)) }}</td>
                            <td><span class="badge badge-soft">{{ ucfirst($s->approval_status) }}</span></td>
                            <td>{{ $s->uploaded_at?->format('M d, Y') ?? '—' }}</td>
                            <td>
                                <a class="btn btn-sm btn-outline-green" href="{{ route('admin.conference-speakers.show', $s) }}">View</a>
                                @if($s->approval_status === 'pending' && $s->hasUploadedMaterials())
                                    <a class="btn btn-sm btn-green" href="{{ route('admin.conference-speakers.review', $s) }}">Review</a>
                                @endif
                            </td>
                        </tr>
                    @endif
                @empty
                    <tr><td colspan="8" class="text-muted">No presentation uploads yet.</td></tr>
                @endforelse
            </tbody>
        </table>
    </div>
    {{ $uploadItems->links() }}
</div>
@endsection