Internal enhancements to system registration and editing

app/Policies/SystemPolicy.php

@@ -10,6 +10,22 @@ class SystemPolicy
 {
 	use HandlesAuthorization;
 
+	/**
+	 * Determine whether the user can create the model.
+	 *
+	 * A user can create a system if it doesnt exist.
+	 *
+	 * @param User $user
+	 * @param System $system
+	 * @return bool
+	 */
+	public function create(User $user, System $system): bool
+	{
+		// Site Admins can always create
+		// If it doesnt exist, then a user can create it.
+		return ($user->isAdmin() || (! $system->exists));
+	}
+
 	/**
 	 * Determine whether the user can update the model.
 	 *
@@ -17,9 +33,9 @@ class SystemPolicy
 	 * If it has addresses, at least one of the addresses must have been validated.
 	 * (The assumption is, if a system has multiple addresses, they would be valid, or an admin can remove them.)
 	 *
-	 * @param  \App\Models\User  $user
-	 * @param  \App\Models\System  $system
-	 * @return \Illuminate\Auth\Access\Response|bool
+	 * @param User $user
+	 * @param System $system
+	 * @return bool
 	 */
 	public function update(User $user, System $system): bool
 	{