<?php

namespace App\Http\Controllers;

use App\Models\Maintenance;
use App\Models\Vehicle;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class MaintenanceController extends Controller
{
    public function index()
    {
        return view('maintenance.dashboard');
    }

    public function getMaintenanceHistory()
    {
        $maintenances = Maintenance::with('vehicle')
            ->orderBy('date', 'desc')
            ->get();

        return response()->json($maintenances);
    }

    public function getPendingAlerts()
    {
        $alerts = Maintenance::with('vehicle')
            ->where('status', 'Pendiente')
            ->where('next_maintenance_date', '<=', now()->addDays(30))
            ->orderBy('next_maintenance_date', 'asc')
            ->get();

        return response()->json($alerts);
    }

    public function store(Request $request)
    {
        $validated = $request->validate([
            'vehicle_id' => 'required|exists:vehicles,id',
            'maintenance_type' => 'required|string',
            'date' => 'required|date',
            'description' => 'required|string',
            'cost' => 'required|numeric|min:0',
            'status' => 'required|in:Pendiente,En Proceso,Completado',
            'next_maintenance_date' => 'nullable|date'
        ]);

        $maintenance = Maintenance::create($validated);

        return response()->json([
            'message' => 'Mantenimiento registrado exitosamente',
            'maintenance' => $maintenance
        ], 201);
    }

    public function update(Request $request, Maintenance $maintenance)
    {
        $validated = $request->validate([
            'vehicle_id' => 'required|exists:vehicles,id',
            'maintenance_type' => 'required|string',
            'date' => 'required|date',
            'description' => 'required|string',
            'cost' => 'required|numeric|min:0',
            'status' => 'required|in:Pendiente,En Proceso,Completado',
            'next_maintenance_date' => 'nullable|date'
        ]);

        $maintenance->update($validated);

        return response()->json([
            'message' => 'Mantenimiento actualizado exitosamente',
            'maintenance' => $maintenance
        ]);
    }

    public function getVehicles()
    {
        $vehicles = Vehicle::where('status', 'Activo')->get();
        return response()->json($vehicles);
    }
}