Revert "Rename everything filcnaplo-related to refilc"

This reverts commit d1a9625d93.

filcnaplo/lib/utils/jwt.dart

@@ -0,0 +1,42 @@
+import 'dart:convert';
+
+import 'package:filcnaplo/models/user.dart';
+
+class JwtUtils {
+  static Map? decodeJwt(String jwt) {
+    var parts = jwt.split(".");
+    if (parts.length != 3) return null;
+
+    if (parts[1].length % 4 == 2) {
+      parts[1] += "==";
+    } else if (parts[1].length % 4 == 3) {
+      parts[1] += "=";
+    }
+
+    try {
+      var payload = utf8.decode(base64Url.decode(parts[1]));
+      return jsonDecode(payload);
+    } catch (error) {
+      // ignore: avoid_print
+      print("ERROR: JwtUtils.decodeJwt: $error");
+    }
+    return null;
+  }
+
+  static String? getNameFromJWT(String jwt) {
+    var jwtData = decodeJwt(jwt);
+    return jwtData?["name"];
+  }
+
+  static Role? getRoleFromJWT(String jwt) {
+    var jwtData = decodeJwt(jwt);
+
+    switch (jwtData?["role"]) {
+      case "Tanulo":
+        return Role.student;
+      case "Gondviselo":
+        return Role.parent;
+    }
+    return null;
+  }
+}