Added trial and blocking to billing contract, fixed bug in running time tracker command

app/Service/BillingContract.php

@@ -6,10 +6,42 @@ namespace App\Service;
 
 use App\Models\Organization;
 
+/**
+ * This class is a contract for the billing system
+ * The billing system is responsible for managing the subscriptions of organizations
+ * The concrete implementation of this contract for the cloud version of solidtime is implemented in an extension
+ */
 class BillingContract
 {
+    /**
+     * Check if the organization has a Professional subscription
+     * A Professional subscription is a paid subscription that allows the organization to:
+     *  - Have more than 1 non-placeholder member
+     *  - Access features that are not available to free organizations
+     */
     public function hasSubscription(Organization $organization): bool
     {
         return false;
     }
+
+    /**
+     * Check if the organization has a trial subscription
+     * A trial subscription gives the organization the same benefits as a Professional subscription, but for a limited time
+     */
+    public function hasTrial(Organization $organization): bool
+    {
+        return false;
+    }
+
+    /**
+     * Check if the organization is blocked
+     * A blocked organization is an organization that has more than 1 non-placeholder member but no subscription/trial
+     * This can happen if:
+     *  - The organization's trial has expired and during the trial the organization added non-placeholder members
+     *  - The organization's subscription has expired and the organization has more than 1 non-placeholder member
+     */
+    public function isBlocked(Organization $organization): bool
+    {
+        return false;
+    }
 }