@extends('layouts.app')
@section('title', 'QR Code')
@section('page-title', 'Scan QR Code')
@section('content')
<div class="row justify-content-center">
    <div class="col-md-6">
        <div class="card text-center">
            <div class="card-header bg-white d-flex justify-content-between align-items-center">
                <h6 class="mb-0">Connect <strong>{{ $device->name }}</strong></h6>
                @if(config('evolution.demo_mode'))
                    <span class="badge bg-warning text-dark">Demo Mode</span>
                @endif
            </div>
            <div class="card-body py-4">
                @if(isset($apiError))
                    <div class="alert alert-warning text-start">
                        <h6 class="alert-heading"><i class="bi bi-exclamation-triangle"></i> Connection Issue</h6>
                        <p class="mb-2">{!! $apiError !!}</p>
                        <hr>
                        <p class="mb-2 small"><strong>What you can do:</strong></p>
                        <ol class="small text-start mb-0">
                            <li>Wait a moment and click "Retry" below</li>
                            <li>Check if Evolution API is running</li>
                            <li>Verify the API URL in your .env file</li>
                        </ol>
                    </div>
                    <div class="mt-3">
                        <a href="{{ route('dashboard.devices.qr', $device->id) }}" class="btn btn-primary">
                            <i class="bi bi-arrow-clockwise"></i> Retry Connection
                        </a>
                        <a href="{{ route('dashboard.devices.index') }}" class="btn btn-outline-secondary">
                            <i class="bi bi-arrow-left"></i> Back to Devices
                        </a>
                    </div>
                @else
                    <div id="qr-container">
                        @if(!empty($qrData['qrcode_base64']))
                            <img src="{{ $qrData['qrcode_base64'] }}" alt="QR Code" class="img-fluid mb-3" style="max-width: 300px;">
                            @if(config('evolution.demo_mode'))
                                <div class="alert alert-info small text-start mt-2">
                                    <i class="bi bi-info-circle"></i> This is a demo QR code. In production with Evolution API running, this will be a real WhatsApp QR code.
                                </div>
                            @endif
                        @elseif(!empty($qrData['qrcode']))
                            <div class="bg-light p-4 rounded mb-3">
                                <p class="mb-0 text-break small">{{ $qrData['qrcode'] }}</p>
                            </div>
                        @else
                            <div class="py-5">
                                <div class="spinner-border text-success" role="status"></div>
                                <p class="mt-3 text-muted">Connecting to Evolution API...</p>
                                <p class="small text-muted">This may take a few seconds</p>
                            </div>
                        @endif
                    </div>

                    <div class="mt-3">
                        <p class="text-muted small">
                            Open WhatsApp on your phone:<br>
                            <strong>Settings > Linked Devices > Link a Device</strong><br>
                            Point your phone at this screen to scan the QR code.
                        </p>
                    </div>

                    <div id="status-badge" class="mt-2">
                        <span class="badge bg-info fs-6" id="connection-status">{{ $qrData['status'] ?? 'Waiting...' }}</span>
                    </div>
                @endif
            </div>
        </div>
        @if(!isset($apiError))
        <div class="text-center mt-3">
            <a href="{{ route('dashboard.devices.index') }}" class="btn btn-outline-secondary">Back to Devices</a>
        </div>
        @endif
    </div>
</div>

@if(!isset($apiError) && empty($qrData['qrcode_base64']) && empty($qrData['qrcode']))
<script>
    setTimeout(() => location.reload(), 5000);
</script>
@endif

@if(!isset($apiError))
@push('scripts')
<script>
    let checkInterval = setInterval(function() {
        fetch('{{ route("dashboard.devices.check-status", $device->id) }}')
            .then(r => r.json())
            .then(data => {
                document.getElementById('connection-status').textContent = data.status;
                if (data.status === 'connected') {
                    document.getElementById('connection-status').className = 'badge bg-success fs-6';
                    clearInterval(checkInterval);
                    setTimeout(() => window.location.href = '{{ route("dashboard.devices.index") }}', 2000);
                } else if (data.status === 'disconnected') {
                    document.getElementById('connection-status').className = 'badge bg-danger fs-6';
                }
            })
            .catch(() => {});
    }, 3000);
</script>
@endpush
@endif
@endsection