@extends('layouts.super_admin')

@section('title', 'Database Backups')

@section('content')
<div class="row g-4">
    <!-- Statistics Cards -->
    <div class="col-md-3">
        <div class="card text-white bg-primary">
            <div class="card-body">
                <div class="d-flex justify-content-between align-items-center">
                    <div>
                        <h6 class="card-title mb-1">Total Backups</h6>
                        <h3 class="mb-0">{{ $stats['total_backups'] ?? 0 }}</h3>
                    </div>
                    <i class="bi bi-hdd-stack fs-1 opacity-50"></i>
                </div>
            </div>
        </div>
    </div>

    <div class="col-md-3">
        <div class="card text-white bg-success">
            <div class="card-body">
                <div class="d-flex justify-content-between align-items-center">
                    <div>
                        <h6 class="card-title mb-1">Total Size</h6>
                        <h3 class="mb-0">{{ formatFileSize($stats['total_size'] ?? 0) }}</h3>
                    </div>
                    <i class="bi bi-database fs-1 opacity-50"></i>
                </div>
            </div>
        </div>
    </div>

    <div class="col-md-3">
        <div class="card text-white bg-info">
            <div class="card-body">
                <div class="d-flex justify-content-between align-items-center">
                    <div>
                        <h6 class="card-title mb-1">Manual</h6>
                        <h3 class="mb-0">{{ $stats['manual_backups'] ?? 0 }}</h3>
                    </div>
                    <i class="bi bi-hand-index fs-1 opacity-50"></i>
                </div>
            </div>
        </div>
    </div>

    <div class="col-md-3">
        <div class="card text-white bg-warning">
            <div class="card-body">
                <div class="d-flex justify-content-between align-items-center">
                    <div>
                        <h6 class="card-title mb-1">Scheduled</h6>
                        <h3 class="mb-0">{{ $stats['scheduled_backups'] ?? 0 }}</h3>
                    </div>
                    <i class="bi bi-clock-history fs-1 opacity-50"></i>
                </div>
            </div>
        </div>
    </div>

    <!-- Actions -->
    <div class="col-12">
        <div class="card">
            <div class="card-header d-flex justify-content-between align-items-center">
                <div>
                    <i class="bi bi-shield-check me-2 text-primary"></i>
                    <strong>Backup Management</strong>
                </div>
                <div>
                    <form method="POST" action="{{ route('super-admin.backups.store') }}" class="d-inline">
                        @csrf
                        <button type="submit" class="btn btn-primary" onclick="return confirm('Create a new manual backup? This may take a few minutes.')">
                            <i class="bi bi-plus-circle me-1"></i>
                            Create Manual Backup
                        </button>
                    </form>
                    <form method="POST" action="{{ route('super-admin.backups.cleanup') }}" class="d-inline">
                        @csrf
                        <button type="submit" class="btn btn-warning" onclick="return confirm('Apply retention policy and delete old backups? This cannot be undone.')">
                            <i class="bi bi-trash me-1"></i>
                            Cleanup Old Backups
                        </button>
                    </form>
                </div>
            </div>
            <div class="card-body">
                <div class="alert alert-info" role="alert">
                    <i class="bi bi-info-circle me-2"></i>
                    <strong>Retention Policy:</strong> 30 daily, 12 weekly, 6 monthly backups. Automated backups run daily at 2 AM UTC.
                </div>
            </div>
        </div>
    </div>

    <!-- Backups Table -->
    <div class="col-12">
        <div class="card">
            <div class="card-header">
                <i class="bi bi-table me-2"></i>
                <strong>Backup History</strong>
            </div>
            <div class="card-body">
                @if(session('success'))
                    <div class="alert alert-success alert-dismissible fade show" role="alert">
                        {{ session('success') }}
                        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                    </div>
                @endif

                @if(session('error'))
                    <div class="alert alert-danger alert-dismissible fade show" role="alert">
                        {{ session('error') }}
                        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                    </div>
                @endif

                <div class="table-responsive">
                    <table class="table table-hover">
                        <thead>
                            <tr>
                                <th>ID</th>
                                <th>File Name</th>
                                <th>Type</th>
                                <th>Size</th>
                                <th>Status</th>
                                <th>Created</th>
                                <th>Created By</th>
                                <th>Actions</th>
                            </tr>
                        </thead>
                        <tbody>
                            @forelse($backups as $backup)
                                <tr>
                                    <td>{{ $backup->id }}</td>
                                    <td>
                                        <code class="text-break">{{ $backup->file_name }}</code>
                                        <br>
                                        <small class="text-muted">{{ substr($backup->checksum, 0, 16) }}...</small>
                                    </td>
                                    <td>
                                        @php
                                            $typeLabel = match($backup->backup_type) {
                                                'manual' => 'Manual',
                                                'scheduled_daily' => 'Daily',
                                                'scheduled_weekly' => 'Weekly',
                                                'scheduled_monthly' => 'Monthly',
                                                default => ucfirst(str_replace('_', ' ', $backup->backup_type))
                                            };
                                            $typeColor = match($backup->backup_type) {
                                                'manual' => 'primary',
                                                'scheduled_daily' => 'success',
                                                'scheduled_weekly' => 'info',
                                                'scheduled_monthly' => 'warning',
                                                default => 'secondary'
                                            };
                                        @endphp
                                        <span class="badge bg-{{ $typeColor }}">{{ $typeLabel }}</span>
                                    </td>
                                    <td>{{ $backup->file_size_human }}</td>
                                    <td>
                                        @if($backup->status === 'completed')
                                            <span class="badge bg-success">Completed</span>
                                        @elseif($backup->status === 'failed')
                                            <span class="badge bg-danger">Failed</span>
                                        @elseif($backup->status === 'pending')
                                            <span class="badge bg-warning">Pending</span>
                                        @else
                                            <span class="badge bg-secondary">{{ ucfirst($backup->status) }}</span>
                                        @endif
                                        @if($backup->is_encrypted)
                                            <i class="bi bi-lock-fill text-success ms-1" title="Encrypted"></i>
                                        @endif
                                    </td>
                                    <td>
                                        {{ $backup->created_at->format('d M Y, H:i') }}
                                        <br>
                                        <small class="text-muted">{{ $backup->created_at->diffForHumans() }}</small>
                                    </td>
                                    <td>
                                        @if($backup->creator)
                                            {{ $backup->creator->name ?? 'System' }}
                                        @else
                                            <span class="text-muted">System</span>
                                        @endif
                                    </td>
                                    <td>
                                        <div class="btn-group" role="group">
                                            @if($backup->status === 'completed' && $backup->fileExists())
                                                <a href="{{ route('super-admin.backups.download', $backup->id) }}"
                                                   class="btn btn-sm btn-outline-primary"
                                                   title="Download">
                                                    <i class="bi bi-download"></i>
                                                </a>
                                                <form method="POST" action="{{ route('super-admin.backups.verify', $backup->id) }}" class="d-inline">
                                                    @csrf
                                                    <button type="submit" class="btn btn-sm btn-outline-info" title="Verify Integrity">
                                                        <i class="bi bi-shield-check"></i>
                                                    </button>
                                                </form>
                                            @endif
                                            <form method="POST" action="{{ route('super-admin.backups.destroy', $backup->id) }}" class="d-inline">
                                                @csrf
                                                @method('DELETE')
                                                <button type="submit" class="btn btn-sm btn-outline-danger" title="Delete" onclick="return confirm('Are you sure you want to delete this backup? This cannot be undone.')">
                                                    <i class="bi bi-trash"></i>
                                                </button>
                                            </form>
                                        </div>
                                    </td>
                                </tr>
                            @empty
                                <tr>
                                    <td colspan="8" class="text-center text-muted py-5">
                                        <i class="bi bi-inbox fs-1 d-block mb-3"></i>
                                        No backups found. Create your first backup to get started.
                                    </td>
                                </tr>
                            @endforelse
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
function formatFileSize(bytes) {
    if (bytes === 0) return '0 B';
    const k = 1024;
    const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}
</script>
@endsection