init commit

app/Models/Role.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Role extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'display_name',
+        'description'
+    ];
+
+    public function permissions()
+    {
+        return $this->belongsToMany(Permission::class)->withPivot('granted')->withTimestamps();
+    }
+
+    public function users()
+    {
+        return $this->belongsToMany(User::class)->withTimestamps();
+    }
+
+    public function hasPermission($permission)
+    {
+        return $this->permissions->where('pivot.granted', true)->contains('name', $permission) ||
+            $this->hasWildcardPermission($permission);
+    }
+
+    private function hasWildcardPermission($permission)
+    {
+        $wildcardPermissions = $this->permissions->where('is_wildcard', true)->where('pivot.granted', true);
+
+        foreach ($wildcardPermissions as $wildcardPermission) {
+            $pattern = str_replace('*', '.*', $wildcardPermission->name);
+            if (preg_match('/^' . $pattern . '$/', $permission)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}