@extends('layouts.app')

@section('title', 'Manage Sensors')

@section('content')
<div class="container mx-auto px-4 py-6">
    <div class="flex flex-col md:flex-row md:items-center md:justify-between mb-6 gap-4">
        <h1 class="text-2xl font-semibold text-gray-900">Sensors Management</h1>
        <div class="flex flex-col sm:flex-row gap-3">
            <a href="{{ route('sensors.create') }}" class="px-4 py-2 bg-primary-600 text-white rounded-md hover:bg-primary-700 flex items-center justify-center">
                <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6v6m0 0v6m0-6h6m-6 0H6"></path>
                </svg>
                Add New Sensor
            </a>
            <a href="{{ route('sensors.api-documentation') }}" class="px-4 py-2 bg-gray-600 text-white rounded-md hover:bg-gray-700 flex items-center justify-center">
                <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"></path>
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"></path>
                </svg>
                API Docs
            </a>
        </div>
    </div>

    <!-- Search and Filter -->
    <div class="bg-white shadow-md rounded-lg p-4 mb-6">
        <form action="{{ route('sensors.index') }}" method="GET" class="space-y-4">
            <div class="grid grid-cols-1 md:grid-cols-4 gap-4">
                <!-- Search Input -->
                <div class="col-span-1 md:col-span-2">
                    <label for="search" class="block text-sm font-medium text-gray-700 mb-1">Search</label>
                    <div class="relative">
                        <input type="text" name="search" id="search" value="{{ request('search') }}" 
                               class="block w-full rounded-md border-gray-300 shadow-sm focus:border-primary-500 focus:ring-primary-500" 
                               placeholder="Search by UUID, QR code or gas company...">
                        <div class="absolute inset-y-0 right-0 flex items-center pr-3">
                            <svg class="h-5 w-5 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"></path>
                            </svg>
                        </div>
                    </div>
                </div>
                
                <!-- Status Filter -->
                <div>
                    <label for="status" class="block text-sm font-medium text-gray-700 mb-1">Status</label>
                    <select id="status" name="status" class="block w-full rounded-md border-gray-300 shadow-sm focus:border-primary-500 focus:ring-primary-500">
                        <option value="">All Status</option>
                        <option value="online" {{ request('status') == 'online' ? 'selected' : '' }}>Online</option>
                        <option value="offline" {{ request('status') == 'offline' ? 'selected' : '' }}>Offline</option>
                        <option value="battery_low" {{ request('status') == 'battery_low' ? 'selected' : '' }}>Battery Low</option>
                    </select>
                </div>
                
                <!-- Gas Company Filter -->
                <div>
                    <label for="gas_company_id" class="block text-sm font-medium text-gray-700 mb-1">Gas Company</label>
                    <select id="gas_company_id" name="gas_company_id" class="block w-full rounded-md border-gray-300 shadow-sm focus:border-primary-500 focus:ring-primary-500">
                        <option value="">All Companies</option>
                        @foreach($gasCompanies as $id => $name)
                            <option value="{{ $id }}" {{ request('gas_company_id') == $id ? 'selected' : '' }}>{{ $name }}</option>
                        @endforeach
                    </select>
                </div>
            </div>
            
            <div class="flex justify-end space-x-3">
                <a href="{{ route('sensors.index') }}" class="px-4 py-2 border border-gray-300 rounded-md shadow-sm text-sm font-medium text-gray-700 bg-white hover:bg-gray-50">
                    Reset
                </a>
                <button type="submit" class="px-4 py-2 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-primary-600 hover:bg-primary-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-primary-500">
                    Apply Filters
                </button>
            </div>
        </form>
    </div>

    <!-- Sensors Table -->
    <div class="bg-white shadow-md rounded-lg overflow-hidden">
        <div class="overflow-x-auto">
            <table class="min-w-full divide-y divide-gray-200">
                <thead class="bg-gray-50">
                    <tr>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Device UUID</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">QR Code</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Gas Company</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Gas Level</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Battery</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Last Ping</th>
                        <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 uppercase tracking-wider">Actions</th>
                    </tr>
                </thead>
                <tbody class="bg-white divide-y divide-gray-200">
                    @forelse($sensors as $sensor)
                    <tr class="hover:bg-gray-50">
                        <td class="px-6 py-4 whitespace-nowrap">
                            <div class="text-sm font-medium text-gray-900">{{ $sensor->device_uuid }}</div>
                            <div class="text-xs text-gray-500">v{{ $sensor->firmware_version ?? '1.0' }}</div>
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
                            <span class="px-2 py-1 bg-gray-100 rounded-md font-mono">{{ $sensor->qr_code }}</span>
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap">
                            @if($sensor->gasCompany)
                                <div class="text-sm text-gray-900">{{ $sensor->gasCompany->name }}</div>
                            @else
                                <span class="text-sm text-gray-500">Unassigned</span>
                            @endif
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap">
                            @php
                                $statusClasses = [
                                    'online' => 'bg-green-100 text-green-800',
                                    'offline' => 'bg-gray-100 text-gray-800',
                                    'battery_low' => 'bg-yellow-100 text-yellow-800',
                                ][$sensor->status] ?? 'bg-gray-100 text-gray-800';
                            @endphp
                            <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full {{ $statusClasses }}">
                                {{ ucfirst(str_replace('_', ' ', $sensor->status)) }}
                            </span>
                            @if(!$sensor->is_active)
                                <span class="ml-1 px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-red-100 text-red-800">
                                    Inactive
                                </span>
                            @endif
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap">
                            @if(!is_null($sensor->last_gas_level))
                                <div class="flex items-center">
                                    <div class="w-16 bg-gray-200 rounded-full h-2 mr-2">
                                        @php
                                            $gasLevel = $sensor->last_gas_level;
                                            $gasColor = $gasLevel < 20 ? 'bg-red-500' : ($gasLevel < 50 ? 'bg-yellow-500' : 'bg-green-500');
                                        @endphp
                                        <div class="h-2 rounded-full {{ $gasColor }}" style="width: {{ $gasLevel }}%"></div>
                                    </div>
                                    <span class="text-sm text-gray-700">{{ $sensor->last_gas_level }}%</span>
                                </div>
                                @if($sensor->latestLog && $sensor->latestLog->is_leak_detected)
                                    <span class="mt-1 inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-red-100 text-red-800">
                                        <svg class="mr-1.5 h-2 w-2 text-red-400" fill="currentColor" viewBox="0 0 8 8">
                                            <circle cx="4" cy="4" r="3" />
                                        </svg>
                                        Leak Detected
                                    </span>
                                @endif
                            @else
                                <span class="text-sm text-gray-500">N/A</span>
                            @endif
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap">
                            @if(!is_null($sensor->battery_level))
                                <div class="flex items-center">
                                    <div class="w-16 bg-gray-200 rounded-full h-2 mr-2">
                                        @php
                                            $batteryLevel = $sensor->battery_level;
                                            $batteryColor = $batteryLevel < 20 ? 'bg-red-500' : ($batteryLevel < 50 ? 'bg-yellow-500' : 'bg-green-500');
                                        @endphp
                                        <div class="h-2 rounded-full {{ $batteryColor }}" style="width: {{ $batteryLevel }}%"></div>
                                    </div>
                                    <span class="text-sm text-gray-700">{{ $sensor->battery_level }}%</span>
                                </div>
                            @else
                                <span class="text-sm text-gray-500">N/A</span>
                            @endif
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
                            @if($sensor->last_ping)
                                <div class="text-sm text-gray-900">{{ $sensor->last_ping->diffForHumans() }}</div>
                                <div class="text-xs text-gray-500">{{ $sensor->last_ping->format('M j, Y g:i A') }}</div>
                            @else
                                <span class="text-sm text-gray-500">Never</span>
                            @endif
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                            <div class="flex justify-end space-x-2">
                                <!-- View Details Button -->
                                <a href="{{ route('sensors.show', $sensor->id) }}" 
                                   class="text-primary-600 hover:text-primary-900 group relative"
                                   title="View Details">
                                    <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"></path>
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"></path>
                                    </svg>
                                    <span class="invisible group-hover:visible opacity-0 group-hover:opacity-100 transition-opacity absolute z-10 -top-8 left-1/2 transform -translate-x-1/2 px-2 py-1 text-xs bg-gray-800 text-white rounded whitespace-nowrap">View Details</span>
                                </a>
                                
                                <!-- Visualization Button -->
                                <a href="{{ route('sensors.details', $sensor->id) }}" 
                                   class="text-purple-600 hover:text-purple-900 group relative"
                                   title="View Visualization">
                                    <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 12l3-3 3 3 4-4M8 21l4-4 4 4M3 4h18M4 4h16v12a1 1 0 01-1 1H5a1 1 0 01-1-1V4z" />
                                    </svg>
                                    <span class="invisible group-hover:visible opacity-0 group-hover:opacity-100 transition-opacity absolute z-10 -top-8 left-1/2 transform -translate-x-1/2 px-2 py-1 text-xs bg-gray-800 text-white rounded whitespace-nowrap">View Analytics</span>
                                </a>
                                
                                <!-- Logs Button -->
                                <a href="{{ route('sensors.logs', $sensor->id) }}" 
                                   class="text-blue-600 hover:text-blue-900 group relative"
                                   title="View Logs">
                                    <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 17v-2m3 2v-4m3 4v-6m2 10H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
                                    </svg>
                                    <span class="invisible group-hover:visible opacity-0 group-hover:opacity-100 transition-opacity absolute z-10 -top-8 left-1/2 transform -translate-x-1/2 px-2 py-1 text-xs bg-gray-800 text-white rounded whitespace-nowrap">View Logs</span>
                                </a>
                                
                                <!-- Edit Button -->
                                <a href="{{ route('sensors.edit', $sensor->id) }}" 
                                   class="text-yellow-600 hover:text-yellow-900 group relative"
                                   title="Edit">
                                    <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path>
                                    </svg>
                                    <span class="invisible group-hover:visible opacity-0 group-hover:opacity-100 transition-opacity absolute z-10 -top-8 left-1/2 transform -translate-x-1/2 px-2 py-1 text-xs bg-gray-800 text-white rounded whitespace-nowrap">Edit</span>
                                </a>
                                
                                <!-- Delete Button -->
                                <form action="{{ route('sensors.destroy', $sensor->id) }}" method="POST" class="inline" 
                                      onsubmit="return confirm('Are you sure you want to delete this sensor? This action cannot be undone.')">
                                    @csrf
                                    @method('DELETE')
                                    <button type="submit" class="text-red-600 hover:text-red-900 group relative" title="Delete">
                                        <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"></path>
                                        </svg>
                                        <span class="invisible group-hover:visible opacity-0 group-hover:opacity-100 transition-opacity absolute z-10 -top-8 left-1/2 transform -translate-x-1/2 px-2 py-1 text-xs bg-gray-800 text-white rounded whitespace-nowrap">Delete</span>
                                    </button>
                                </form>
                            </div>
                        </td>
                    </tr>
                    @empty
                    <tr>
                        <td colspan="8" class="px-6 py-4 text-center text-sm text-gray-500">
                            @if(request()->has('search') || request()->has('status') || request()->has('gas_company_id'))
                                No sensors match your filters. <a href="{{ route('sensors.index') }}" class="text-primary-600 hover:text-primary-900">Clear filters</a>
                            @else
                                No sensors found. <a href="{{ route('sensors.create') }}" class="text-primary-600 hover:text-primary-900">Add your first sensor</a>
                            @endif
                        </td>
                    </tr>
                    @endforelse
                </tbody>
            </table>
        </div>
        
        @if($sensors->hasPages())
        <div class="px-6 py-4 bg-gray-50 border-t border-gray-200">
            {{ $sensors->withQueryString()->links() }}
        </div>
        @endif
    </div>
</div>

@push('scripts')
<script>
    // Auto-submit form when filters change
    document.addEventListener('DOMContentLoaded', function() {
        const filterForm = document.querySelector('form[method="GET"]');
        const filterSelects = filterForm.querySelectorAll('select');
        
        filterSelects.forEach(select => {
            select.addEventListener('change', function() {
                filterForm.submit();
            });
        });
    });
</script>
@endpush
@endsection