ldc-jeusselin/app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Pagination\Paginator;
use Illuminate\Support\Facades\URL;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\View;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\App;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
    }

    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        // Prevent lazy loading, but only when the app is not in production.
        Model::preventLazyLoading(config('app.env') !== 'production');

        // * HTTPS FIX
        URL::forceScheme('https');

        // * HA PROXY FIX
        App::singleton('clientIp', function () {
            if (config('app.env') === 'local') {
                return request()->getClientIp();
            } else {
                return request()->server('HTTP_X_FORWARDED_FOR') ??
                request()->getClientIp();
            }
        });

        // * LOCAL FORCE eg: for Carbon
        setlocale(LC_ALL, \sprintf(
            '%s_%s.UTF-8',
            config('app.locale'),
            \strtoupper(config('app.locale'))
        ));
        Carbon::setLocale(config('app.locale'));

        // * FORCE BOOTSTRAP PAGINATOR (or custom if in front)
        Paginator::useBootstrap();

        $today = Carbon::now();

        // * Current time
        $start_winter          = Carbon::create($today->year, 12, 21, 0, 0, 0);
        $start_spring          = Carbon::create($today->year, 3, 20, 0, 0, 0);
        $start_spring_nextyear = Carbon::create($today->year + 1, 3, 20, 0, 0, 0);
        $start_summer          = Carbon::create($today->year, 6, 21, 0, 0, 0);
        $start_fall            = Carbon::create($today->year, 9, 22, 0, 0, 0);

        // * Default
        $saison_css = "winter";

        if ($today->between($start_winter, $start_spring_nextyear, true)) {
            $saison_css = "winter";
        }
        if ($today->between($start_spring, $start_summer, true)) {
            $saison_css = "spring";
        }
        if ($today->between($start_summer, $start_fall, true)) {
            $saison_css = "summer";
        }
        if ($today->between($start_fall, $start_winter, true)) {
            $saison_css = "fall";
        }
        View::share('saison_css', $saison_css);
    }
}