feat: allow users to set their age

Signed-off-by: miguel456 <me@nogueira.codes>

app/Services/ApplicationService.php

@@ -4,7 +4,10 @@
 namespace App\Services;
 
 use App\Exceptions\DiscordAccountRequiredException;
+use App\Exceptions\IncompatibleAgeException;
+use App\Exceptions\InvalidAgeException;
 use App\Notifications\ApplicationConfirmed;
+use Carbon\Carbon;
 use ContextAwareValidator;
 use App\Application;
 use App\Events\ApplicationDeniedEvent;
@@ -25,12 +28,21 @@ class ApplicationService
 {
     /**
      * @throws DiscordAccountRequiredException
+     * @throws IncompatibleAgeException
+     * @throws InvalidAgeException
      */
     public function renderForm($vacancySlug)
     {
         $vacancyWithForm = Vacancy::with('forms')->where('vacancySlug', $vacancySlug)->get();
         $firstVacancy = $vacancyWithForm->first();
 
+        if (is_null(Auth::user()->dob)) {
+            throw new InvalidAgeException("User must have added their age to apply for this vacancy.");
+        } elseif(Carbon::parse(Auth::user()->dob)->age < $firstVacancy->requiredAge) {
+            throw new IncompatibleAgeException("Sorry, you must be {$firstVacancy->requiredAge} or older to apply to {$firstVacancy->vacancyName}.");
+        }
+
+
         if ($firstVacancy->requiresDiscord && !Auth::user()->hasDiscordConnection()) {
             throw new DiscordAccountRequiredException('A discord account is required beyond this point.');
         }