finally the new login is completely working with refresh token as well

refilc_kreta_api/lib/client/client.dart

@@ -1,15 +1,16 @@
-// ignore_for_file: avoid_print
+// ignore_for_file: avoid_print, use_build_context_synchronously
 
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:refilc/api/login.dart';
-import 'package:refilc/api/nonce.dart';
+// import 'package:refilc/api/login.dart';
+// import 'package:refilc/api/nonce.dart';
+import 'package:refilc/api/providers/database_provider.dart';
 import 'package:refilc/api/providers/user_provider.dart';
 import 'package:refilc/api/providers/status_provider.dart';
 import 'package:refilc/models/settings.dart';
 import 'package:refilc/models/user.dart';
-import 'package:refilc/utils/jwt.dart';
+// import 'package:refilc/utils/jwt.dart';
 import 'package:refilc_kreta_api/client/api.dart';
 import 'package:http/http.dart' as http;
 import 'package:http/io_client.dart' as http;
@@ -24,6 +25,7 @@ class KretaClient {
 
   late final SettingsProvider _settings;
   late final UserProvider _user;
+  late final DatabaseProvider _database;
   late final StatusProvider _status;
 
   bool _loginRefreshing = false;
@@ -32,9 +34,11 @@ class KretaClient {
     this.accessToken,
     required SettingsProvider settings,
     required UserProvider user,
+    required DatabaseProvider database,
     required StatusProvider status,
   })  : _settings = settings,
         _user = user,
+        _database = database,
         _status = status,
         userAgent = settings.config.userAgent {
     var ioclient = HttpClient();
@@ -212,7 +216,7 @@ class KretaClient {
         res = await request.send();
 
         if (res.statusCode == 401) {
-          headerMap.remove("authorization"); 
+          headerMap.remove("authorization");
           await refreshLogin();
         } else {
           break;
@@ -232,65 +236,74 @@ class KretaClient {
     }
   }
 
-  Future<void> refreshLogin() async {
-    if (_loginRefreshing) return;
+  Future<String?> refreshLogin() async {
+    if (_loginRefreshing) return null;
     _loginRefreshing = true;
 
     User? loginUser = _user.user;
-    if (loginUser == null) return;
+    if (loginUser == null) return null;
 
     Map<String, String> headers = {
-      "content-type": "application/x-www-form-urlencoded",
+      "content-type": "application/x-www-form-urlencoded; charset=UTF-8",
+      "accept": "*/*",
+      "user-agent": "eKretaStudent/264745 CFNetwork/1494.0.7 Darwin/23.4.0",
     };
 
-    String nonceStr = await getAPI(KretaAPI.nonce, json: false);
-    Nonce nonce =
-        getNonce(nonceStr, loginUser.username, loginUser.instituteCode);
-    headers.addAll(nonce.header());
-
     if (_settings.presentationMode) {
       print("DEBUG: refreshLogin: ${loginUser.id}");
     } else {
       print("DEBUG: refreshLogin: ${loginUser.id} ${loginUser.name}");
     }
 
-    Map? loginRes = await postAPI(
-      KretaAPI.login,
-      headers: headers,
-      body: User.loginBody(
-        username: loginUser.username,
-        password: loginUser.password,
-        instituteCode: loginUser.instituteCode,
-      ),
-    );
+    refreshToken ??= loginUser.refreshToken;
 
-    if (loginRes != null) {
-      if (loginRes.containsKey("access_token")) {
-        accessToken = loginRes["access_token"];
-      }
-      if (loginRes.containsKey("refresh_token")) {
-        refreshToken = loginRes["refresh_token"];
-      }
-
-      // Update role
-      loginUser.role =
-          JwtUtils.getRoleFromJWT(accessToken ?? "") ?? Role.student;
-    }
+    print("REFRESH TOKEN BELOW");
+    print(refreshToken);
 
     if (refreshToken != null) {
-      Map? refreshRes = await postAPI(KretaAPI.login,
+      print("REFRESHING LOGIN");
+      Map? res = await postAPI(KretaAPI.login,
           headers: headers,
           body: User.refreshBody(
-              refreshToken: refreshToken!,
-              instituteCode: loginUser.instituteCode));
-      if (refreshRes != null) {
-        if (refreshRes.containsKey("id_token")) {
-          idToken = refreshRes["id_token"];
+            refreshToken: loginUser.refreshToken,
+            instituteCode: loginUser.instituteCode,
+          ));
+      print("REFRESH RESPONSE BELOW");
+      print(res);
+      if (res != null) {
+        if (res.containsKey("error")) {
+          // remove user if refresh token expired
+          if (res["error"] == "invalid_grant") {
+            // remove user from app
+            _user.removeUser(loginUser.id);
+            await _database.store.removeUser(loginUser.id);
+
+            // return error
+            return "refresh_token_expired";
+          }
         }
+
+        if (res.containsKey("access_token")) {
+          accessToken = res["access_token"];
+        }
+        if (res.containsKey("refresh_token")) {
+          refreshToken = res["refresh_token"];
+          loginUser.refreshToken = res["refresh_token"];
+          _database.store.storeUser(loginUser);
+          _user.refresh();
+        }
+        if (res.containsKey("id_token")) {
+          idToken = res["id_token"];
+        }
+        _loginRefreshing = false;
+      } else {
+        _loginRefreshing = false;
       }
+    } else {
+      _loginRefreshing = false;
     }
 
-    _loginRefreshing = false;
+    return null;
   }
 
   Future<void> logout() async {