<?php

namespace App\Livewire;

use Livewire\Component;
use App\Services\TraccarService;
use App\Models\Device;
use App\Models\Event;
use App\Models\Position;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Cache;

class Dashboard extends Component
{
    public $stats = [];
    public $recentEvents = [];
    public $devicesStatus = [];
    public $mapDevices = [];

    protected $traccarService;

    public function boot(TraccarService $traccarService)
    {
        $this->traccarService = $traccarService;
    }

    public function mount()
    {
        $this->loadDashboardData();
    }

    public function loadDashboardData()
    {
        $user = Auth::user();
        
        // Get user's devices
        $devices = Device::where('user_id', $user->id)->get();
        
        // Calculate statistics
        $this->stats = [
            'total_devices' => $devices->count(),
            'online_devices' => $devices->where('status', 'online')->count(),
            'offline_devices' => $devices->where('status', 'offline')->count(),
            'recent_alerts' => Event::whereIn('device_id', $devices->pluck('id'))
                ->where('acknowledged', false)
                ->where('created_at', '>=', now()->subDays(7))
                ->count(),
        ];

        // Get devices status for widgets
        $this->devicesStatus = $devices->map(function ($device) {
            return [
                'id' => $device->id,
                'name' => $device->name,
                'status' => $device->status,
                'last_update' => $device->last_update,
                'is_online' => $device->isOnline(),
                'position' => $device->getLatestPosition(),
            ];
        })->toArray();

        // Get recent events
        $this->recentEvents = Event::with(['device', 'geofence'])
            ->whereIn('device_id', $devices->pluck('id'))
            ->orderBy('event_time', 'desc')
            ->limit(10)
            ->get()
            ->map(function ($event) {
                return [
                    'id' => $event->id,
                    'type' => $event->getReadableType(),
                    'device_name' => $event->device->name,
                    'event_time' => $event->event_time,
                    'acknowledged' => $event->acknowledged,
                    'severity' => $event->getSeverity(),
                    'color' => $event->getEventColor(),
                ];
            })->toArray();

        // Get devices for map display
        $this->mapDevices = $devices->filter(function ($device) {
            return $device->currentPosition && $device->currentPosition->valid;
        })->map(function ($device) {
            $position = $device->currentPosition;
            return [
                'id' => $device->id,
                'name' => $device->name,
                'latitude' => $position->latitude,
                'longitude' => $position->longitude,
                'status' => $device->status,
                'speed' => $position->getFormattedSpeed(),
                'address' => $position->address ?? 'Unknown location',
                'last_update' => $position->device_time,
            ];
        })->values()->toArray();
    }

    public function acknowledgeEvent($eventId)
    {
        $event = Event::find($eventId);
        if ($event && $event->device->user_id === Auth::id()) {
            $event->update([
                'acknowledged' => true,
                'acknowledged_by' => Auth::id(),
                'acknowledged_at' => now(),
            ]);
            
            $this->loadDashboardData();
            $this->dispatch('event-acknowledged');
        }
    }

    public function refreshData()
    {
        try {
            // Sync with Traccar API
            $this->syncTraccarData();
            $this->loadDashboardData();
            $this->dispatch('data-refreshed');
        } catch (\Exception $e) {
            $this->dispatch('refresh-error', ['message' => 'Failed to refresh data: ' . $e->getMessage()]);
        }
    }

    private function syncTraccarData()
    {
        $user = Auth::user();
        
        if (!$user->traccar_user_id) {
            return; // User not synced with Traccar
        }

        // Get latest positions from Traccar
        $positions = $this->traccarService->getPositions();
        
        foreach ($positions as $positionData) {
            $device = Device::where('traccar_device_id', $positionData['deviceId'])->first();
            
            if ($device && $device->user_id === $user->id) {
                // Update or create position
                $position = Position::updateOrCreate(
                    ['traccar_position_id' => $positionData['id']],
                    [
                        'device_id' => $device->id,
                        'protocol' => $positionData['protocol'] ?? null,
                        'device_time' => $positionData['deviceTime'],
                        'fix_time' => $positionData['fixTime'],
                        'server_time' => $positionData['serverTime'],
                        'outdated' => $positionData['outdated'] ?? false,
                        'valid' => $positionData['valid'] ?? true,
                        'latitude' => $positionData['latitude'],
                        'longitude' => $positionData['longitude'],
                        'altitude' => $positionData['altitude'] ?? null,
                        'speed' => $positionData['speed'] ?? 0,
                        'course' => $positionData['course'] ?? 0,
                        'address' => $positionData['address'] ?? null,
                        'accuracy' => $positionData['accuracy'] ?? null,
                        'attributes' => $positionData['attributes'] ?? null,
                    ]
                );

                // Update device status and position
                $device->update([
                    'status' => $this->determineDeviceStatus($positionData),
                    'last_update' => $positionData['deviceTime'],
                    'position_id' => $position->id,
                ]);
            }
        }
    }

    private function determineDeviceStatus($positionData): string
    {
        $deviceTime = new \DateTime($positionData['deviceTime']);
        $now = new \DateTime();
        $diffMinutes = $now->diff($deviceTime)->i + ($now->diff($deviceTime)->h * 60);
        
        if ($diffMinutes <= 5) {
            return 'online';
        } elseif ($diffMinutes <= 30) {
            return 'offline';
        } else {
            return 'unknown';
        }
    }

    public function render()
    {
        return view('livewire.dashboard');
    }
}