Added new permission system

src/utils/permissions.ts

@@ -0,0 +1,45 @@
+import { PermissionType } from "@/interfaces/permissions";
+import { User, Type, userTypes } from "@/interfaces/user";
+
+export function checkAccess(
+  user: User,
+  types: Type[],
+  permission?: PermissionType
+) {
+  if (!user) {
+    return false;
+  }
+
+  // if(user.type === '') {
+  if (!user.type) {
+    console.warn("User type is empty");
+    return false;
+  }
+
+  if (types.length === 0) {
+    console.warn("No types provided");
+    return false;
+  }
+
+  if (!types.includes(user.type)) {
+    return false;
+  }
+
+  // we may not want a permission check as most screens dont even havr a specific permission
+  if (permission) {
+    // this works more like a blacklist
+    // therefore if we don't find the permission here, he can't do it
+    if (!(user.permissions || []).includes(permission)) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+export function getTypesOfUser(types: Type[]) {
+    // basicly generate a list of all types except the excluded ones
+    return userTypes.filter((userType) => {
+        return !types.includes(userType);
+    })
+}