<?php

namespace App\Livewire;

use App\Models\Driver;
use Livewire\Component;
use Livewire\WithPagination;

class DriverManagement extends Component
{
    use WithPagination;

    public $filters = [
        'search' => '',
        'status' => '',
        'license_status' => '',
        'vehicle_assigned' => '',
    ];

    public $showModal = false;
    public $showPerformanceModal = false;
    public $editingDriver = null;
    public $selectedDriver = null;
    public $performancePeriod = 30;
    public $driverMetrics = [];

    public $form = [
        'name' => '',
        'driver_id' => '',
        'user_id' => '',
        'phone' => '',
        'email' => '',
        'license_number' => '',
        'license_type' => '',
        'license_expiry_date' => '',
        'assigned_vehicle' => '',
        'vehicle_plate' => '',
        'performance_score' => '',
        'status' => 'active',
        'is_active' => true,
        'notes' => '',
    ];

    public function mount()
    {
        // Initialize component without parameters
    }

    public function getStatsProperty()
    {
        return [
            'total_drivers' => Driver::count(),
            'active_drivers' => Driver::where('status', 'active')->count(),
            'expiring_licenses' => Driver::where('license_expiry_date', '<=', now()->addDays(30))->count(),
            'assigned_vehicles' => Driver::whereNotNull('assigned_vehicle')->count(),
        ];
    }

    public function render()
    {
        $drivers = Driver::query()
            ->with('user')
            ->when($this->filters['search'], function ($query) {
                $query->where(function ($q) {
                    $q->where('name', 'like', '%' . $this->filters['search'] . '%')
                      ->orWhere('driver_id', 'like', '%' . $this->filters['search'] . '%')
                      ->orWhere('phone', 'like', '%' . $this->filters['search'] . '%');
                });
            })
            ->when($this->filters['status'], function ($query) {
                $query->where('status', $this->filters['status']);
            })
            ->when($this->filters['license_status'], function ($query) {
                if ($this->filters['license_status'] === 'valid') {
                    $query->where('license_expiry_date', '>', now());
                } elseif ($this->filters['license_status'] === 'expiring') {
                    $query->whereBetween('license_expiry_date', [now(), now()->addDays(30)]);
                } elseif ($this->filters['license_status'] === 'expired') {
                    $query->where('license_expiry_date', '<', now());
                }
            })
            ->when($this->filters['vehicle_assigned'], function ($query) {
                if ($this->filters['vehicle_assigned'] === 'yes') {
                    $query->whereNotNull('assigned_vehicle');
                } elseif ($this->filters['vehicle_assigned'] === 'no') {
                    $query->whereNull('assigned_vehicle');
                }
            })
            ->paginate(15);

        $users = \App\Models\User::select('id', 'name', 'email')
            ->whereDoesntHave('driver')
            ->orWhere('id', $this->editingDriver?->user_id)
            ->orderBy('name')
            ->get();

        return view('livewire.driver-management', [
            'drivers' => $drivers,
            'users' => $users,
        ]);
    }

    public function editDriver($driverId)
    {
        $this->editingDriver = Driver::find($driverId);
        $this->form = [
            'name' => $this->editingDriver->name,
            'driver_id' => $this->editingDriver->driver_id,
            'user_id' => $this->editingDriver->user_id,
            'phone' => $this->editingDriver->phone,
            'email' => $this->editingDriver->email,
            'license_number' => $this->editingDriver->license_number,
            'license_type' => $this->editingDriver->license_type,
            'license_expiry_date' => $this->editingDriver->license_expiry_date?->format('Y-m-d'),
            'assigned_vehicle' => $this->editingDriver->assigned_vehicle,
            'vehicle_plate' => $this->editingDriver->vehicle_plate,
            'performance_score' => $this->editingDriver->performance_score,
            'status' => $this->editingDriver->status,
            'is_active' => $this->editingDriver->is_active,
            'notes' => $this->editingDriver->notes,
        ];
        $this->showModal = true;
    }

    public function openCreateModal()
    {
        $this->resetForm();
        $this->editingDriver = null;
        $this->showModal = true;
    }

    private function resetForm()
    {
        $this->form = [
            'name' => '',
            'driver_id' => '',
            'user_id' => '',
            'phone' => '',
            'email' => '',
            'license_number' => '',
            'license_type' => '',
            'license_expiry_date' => '',
            'assigned_vehicle' => '',
            'vehicle_plate' => '',
            'performance_score' => '',
            'status' => 'active',
            'is_active' => true,
            'notes' => '',
        ];
    }

    public function createDriver()
    {
        $this->validate([
            'form.name' => 'required|string|max:255',
            'form.driver_id' => 'required|string|unique:drivers,driver_id',
            'form.user_id' => 'nullable|exists:users,id|unique:drivers,user_id',
            'form.phone' => 'nullable|string|max:20',
            'form.email' => 'nullable|email|unique:drivers,email',
            'form.license_number' => 'required|string|max:50',
            'form.license_type' => 'nullable|string|max:50',
            'form.license_expiry_date' => 'nullable|date|after:today',
            'form.assigned_vehicle' => 'nullable|string|max:255',
            'form.vehicle_plate' => 'nullable|string|max:20',
            'form.performance_score' => 'nullable|integer|min:0|max:100',
            'form.status' => 'required|in:active,inactive,suspended',
            'form.is_active' => 'boolean',
            'form.notes' => 'nullable|string',
        ]);

        Driver::create([
            'name' => $this->form['name'],
            'driver_id' => $this->form['driver_id'],
            'user_id' => $this->form['user_id'] ?: null,
            'phone' => $this->form['phone'],
            'email' => $this->form['email'],
            'license_number' => $this->form['license_number'],
            'license_type' => $this->form['license_type'],
            'license_expiry_date' => $this->form['license_expiry_date'] ? \Carbon\Carbon::parse($this->form['license_expiry_date']) : null,
            'assigned_vehicle' => $this->form['assigned_vehicle'],
            'vehicle_plate' => $this->form['vehicle_plate'],
            'performance_score' => $this->form['performance_score'] ?: null,
            'status' => $this->form['status'],
            'is_active' => $this->form['is_active'],
            'notes' => $this->form['notes'],
        ]);

        $this->closeModal();
        session()->flash('message', 'Driver created successfully.');
    }

    public function updateDriver()
    {
        $this->validate([
            'form.name' => 'required|string|max:255',
            'form.driver_id' => 'required|string|unique:drivers,driver_id,' . $this->editingDriver->id,
            'form.user_id' => 'nullable|exists:users,id|unique:drivers,user_id,' . $this->editingDriver->id,
            'form.phone' => 'nullable|string|max:20',
            'form.email' => 'nullable|email|unique:drivers,email,' . $this->editingDriver->id,
            'form.license_number' => 'required|string|max:50',
            'form.license_type' => 'nullable|string|max:50',
            'form.license_expiry_date' => 'nullable|date',
            'form.assigned_vehicle' => 'nullable|string|max:255',
            'form.vehicle_plate' => 'nullable|string|max:20',
            'form.performance_score' => 'nullable|integer|min:0|max:100',
            'form.status' => 'required|in:active,inactive,suspended',
            'form.is_active' => 'boolean',
            'form.notes' => 'nullable|string',
        ]);

        $this->editingDriver->update([
            'name' => $this->form['name'],
            'driver_id' => $this->form['driver_id'],
            'user_id' => $this->form['user_id'] ?: null,
            'phone' => $this->form['phone'],
            'email' => $this->form['email'],
            'license_number' => $this->form['license_number'],
            'license_type' => $this->form['license_type'],
            'license_expiry_date' => $this->form['license_expiry_date'] ? \Carbon\Carbon::parse($this->form['license_expiry_date']) : null,
            'assigned_vehicle' => $this->form['assigned_vehicle'],
            'vehicle_plate' => $this->form['vehicle_plate'],
            'performance_score' => $this->form['performance_score'] ?: null,
            'status' => $this->form['status'],
            'is_active' => $this->form['is_active'],
            'notes' => $this->form['notes'],
        ]);

        $this->closeModal();
        session()->flash('message', 'Driver updated successfully.');
    }

    public function deleteDriver($driverId)
    {
        $driver = Driver::find($driverId);
        if ($driver) {
            // Check if driver has any active assignments
            if ($driver->assigned_vehicle) {
                session()->flash('error', 'Cannot delete driver with active vehicle assignment. Please unassign vehicle first.');
                return;
            }
            
            $driver->delete();
            session()->flash('message', 'Driver deleted successfully.');
        }
    }

    public function suspendDriver($driverId)
    {
        Driver::find($driverId)->update(['status' => 'suspended']);
        session()->flash('message', 'Driver suspended successfully.');
    }

    public function activateDriver($driverId)
    {
        Driver::find($driverId)->update(['status' => 'active']);
        session()->flash('message', 'Driver activated successfully.');
    }

    public function viewPerformance($driverId)
    {
        $this->selectedDriver = Driver::find($driverId);
        $this->driverMetrics = [
            'total_trips' => rand(50, 200),
            'avg_speed' => rand(45, 65),
            'violations' => rand(0, 5),
            'fuel_efficiency' => rand(15, 25),
        ];
        $this->showPerformanceModal = true;
    }

    public function closeModal()
    {
        $this->showModal = false;
        $this->editingDriver = null;
        $this->reset('form');
    }

    public function closePerformanceModal()
    {
        $this->showPerformanceModal = false;
        $this->selectedDriver = null;
        $this->driverMetrics = [];
    }

    public function updatingFilters()
    {
        $this->resetPage();
    }
}