Added Team Authorization Policy

app/Policies/TeamPolicy.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Policies;
+
+use App\Team;
+use App\User;
+use Illuminate\Auth\Access\HandlesAuthorization;
+
+class TeamPolicy
+{
+    use HandlesAuthorization;
+
+    /**
+     * Create a new policy instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    public function index(User $user)
+    {
+        return $user->hasPermissionTo('teams.view');
+    }
+
+    public function create(User $user)
+    {
+        return $user->hasPermissionTo('teams.create');
+    }
+
+    public function update(User $user, Team $team)
+    {
+        // Team owners can update their team regardless of perm.
+        // This perm would let admins change all teams
+        return $user->isOwnerOfTeam($team) || $user->hasPermissionTo('teams.update');
+    }
+
+
+    public function invite(User $user, Team $team)
+    {
+        if (!$team->openJoin && $user->isOwnerOfTeam($team) || !$team->openJoin && $user->hasPermissionTo('teams.invite'))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public function switchTeam(User $user, Team $team): bool
+    {
+        // is the user in the team they're trying to switch to?
+        return $user->hasTeam($team);
+    }
+}