update schoolday event image icons, get rid of lints

Author: dabblingwithcode

school_data_hub_flutter/assets/images/school_event_icons/red_card.png

@@ -26,7 +26,7 @@ Future<File?> createAndCropImageFile(BuildContext context) async {
   }
   final File? imageFile = await Navigator.push<File?>(
     context,
-    MaterialPageRoute(builder: (context) => CropAvatarView(image: image)),
+    MaterialPageRoute<File?>(builder: (context) => CropAvatarView(image: image)),
   );
   return imageFile;
 }

school_data_hub_flutter/assets/images/school_event_icons/red_card_afternoon_care.png

@@ -1,7 +1,6 @@
 import 'dart:convert';
 import 'dart:io';
 import 'dart:math';
-import 'dart:typed_data';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
@@ -19,7 +18,9 @@ Uint8List _normalizeKeyTopLevel(Uint8List keyBytes) {
   if (keyBytes.length == 32) return keyBytes;
   if (keyBytes.length < 32) {
     final k = Uint8List(32);
-    for (int i = 0; i < keyBytes.length; i++) k[i] = keyBytes[i];
+    for (int i = 0; i < keyBytes.length; i++) {
+      k[i] = keyBytes[i];
+    }
     return k;
   }
   return Uint8List.fromList(keyBytes.sublist(0, 32));
@@ -93,7 +94,9 @@ class CustomEncrypter {
     if (keyBytes.length == 32) return Uint8List.fromList(keyBytes);
     if (keyBytes.length < 32) {
       final k = Uint8List(32);
-      for (int i = 0; i < keyBytes.length; i++) k[i] = keyBytes[i];
+      for (int i = 0; i < keyBytes.length; i++) {
+        k[i] = keyBytes[i];
+      }
       return k;
     }
     return Uint8List.fromList(keyBytes.sublist(0, 32));
@@ -105,7 +108,9 @@ class CustomEncrypter {
 
   Uint8List _pad16(List<int> b) {
     final out = Uint8List(16);
-    for (int i = 0; i < b.length && i < 16; i++) out[i] = b[i];
+    for (int i = 0; i < b.length && i < 16; i++) {
+      out[i] = b[i];
+    }
     return out;
   }
 
@@ -244,37 +249,38 @@ class CustomEncrypter {
     // Try new format first (IV prepended).
     final iv = encryptedBytes.sublist(0, 16);
     final ciphertext = encryptedBytes.sublist(16);
-    final newResult =
-        Uint8List.fromList(_decryptCbc(iv, ciphertext, _keyBytes));
+    final newResult = Uint8List.fromList(
+      _decryptCbc(iv, ciphertext, _keyBytes),
+    );
     if (_looksLikeImage(newResult)) return newResult;
     // Legacy format: entire blob is ciphertext, fixed IV from env (old encrypt package).
     if (encryptedBytes.length % 16 != 0) return newResult;
     final fixedIv = _fixedIv();
-    return Uint8List.fromList(
-      _decryptCbc(fixedIv, encryptedBytes, _keyBytes),
-    );
+    return Uint8List.fromList(_decryptCbc(fixedIv, encryptedBytes, _keyBytes));
   }
 
   /// Async decryption: resolves key on main isolate and runs CBC in [compute] when in release/profile.
   /// Supports both new format (IV + ciphertext) and legacy encrypt-package format (ciphertext only, fixed IV).
   Future<Uint8List> decryptTheseBytesAsync(Uint8List encryptedBytes) async {
     if (encryptedBytes.length <= 16) return encryptedBytes;
-    final keyBytes =
-        Uint8List.fromList(utf8.encode(di<EnvManager>().activeEnv!.key!));
+    final keyBytes = Uint8List.fromList(
+      utf8.encode(di<EnvManager>().activeEnv!.key!),
+    );
     if (kReleaseMode || kProfileMode) {
       // Try new format first.
-      Uint8List result = await compute(
-        decryptBytesWithKey,
-        <dynamic>[encryptedBytes, keyBytes],
-      );
+      Uint8List result = await compute(decryptBytesWithKey, <dynamic>[
+        encryptedBytes,
+        keyBytes,
+      ]);
       if (_looksLikeImage(result)) return result;
       // Legacy format: ciphertext-only with fixed IV (old encrypt package).
       if (encryptedBytes.length % 16 != 0) return result;
       final fixedIv = _fixedIv();
-      return compute(
-        decryptBytesWithKey,
-        <dynamic>[encryptedBytes, keyBytes, fixedIv],
-      );
+      return compute(decryptBytesWithKey, <dynamic>[
+        encryptedBytes,
+        keyBytes,
+        fixedIv,
+      ]);
     }
     return decryptTheseBytes(encryptedBytes);
   }

school_data_hub_flutter/assets/images/school_event_icons/red_card_home.png

@@ -8,7 +8,7 @@ import 'package:school_data_hub_flutter/features/_attendance/presentation/widget
 void missedSchooldaysBadgesInformationDialog({
   required BuildContext context,
   bool? isAttendancePage,
-}) => showDialog(
+}) => showDialog<void>(
   context: context,
   builder: (newContext) => AlertDialog(
     title: const Text('Legende', style: TextStyle(fontWeight: FontWeight.bold)),

school_data_hub_flutter/lib/app_utils/create_and_crop_image_file.dart

@@ -4,7 +4,6 @@ import 'dart:io';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_cache_manager/flutter_cache_manager.dart';
 import 'package:flutter_it/flutter_it.dart';
-import 'package:listen_it/listen_it.dart';
 import 'package:school_data_hub_client/school_data_hub_client.dart';
 import 'package:school_data_hub_flutter/app_utils/custom_encrypter.dart';
 import 'package:school_data_hub_flutter/common/services/hub_stream_service.dart';
@@ -29,8 +28,8 @@ class AuthorizationManager with ChangeNotifier {
 
   Map<int, Authorization> _authorizationsMap = {};
 
-  final Map<String, ValueListenable<PupilAuthorization?>> _pupilAuthListenables =
-      {};
+  final Map<String, ValueListenable<PupilAuthorization?>>
+  _pupilAuthListenables = {};
 
   StreamSubscription<dynamic>? _hubSubscription; // ignore: unused_field
 
@@ -124,8 +123,7 @@ class AuthorizationManager with ChangeNotifier {
   }
 
   void _removePupilAuthListenablesForAuth(int authId) {
-    _pupilAuthListenables
-        .removeWhere((key, _) => key.startsWith('$authId-'));
+    _pupilAuthListenables.removeWhere((key, _) => key.startsWith('$authId-'));
   }
 
   /// Returns a [ValueListenable] that notifies only when this pupil's

school_data_hub_flutter/lib/app_utils/custom_encrypter.dart

@@ -257,7 +257,7 @@ class NewAuthorizationPageState extends State<NewAuthorizationPage> {
                   onPressed: () async {
                     final List<int> selectedPupilIds =
                         await Navigator.of(context).push(
-                          MaterialPageRoute(
+                          MaterialPageRoute<List<int>>(
                             builder: (ctx) => SelectPupilsListPage(
                               selectablePupils: _pupilManager
                                   .getPupilsNotListed(pupilIds.toList()),

school_data_hub_flutter/lib/features/_attendance/presentation/widgets/missed_classes_badges_info_dialog.dart

@@ -48,18 +48,22 @@ class PupilIdentityHelper {
     return decodedJson.map(
       (key, value) => MapEntry(
         int.parse(key),
-        PupilIdentity.fromJson(_normalizeLegacyPupilIdentityJson(
-            Map<String, dynamic>.from(value as Map))),
+        PupilIdentity.fromJson(
+          _normalizeLegacyPupilIdentityJson(
+            Map<String, dynamic>.from(value as Map),
+          ),
+        ),
       ),
     );
   }
 
   /// Normalizes legacy stored identities so fromJson succeeds after model changes.
-  /// Converts specialNeeds String (e.g. "LE*SQ") to List<String>; ensures new
+  /// Converts specialNeeds String (e.g. "LE*SQ") to [List<String>]; ensures new
   /// fields (deputyGroupTutor, nationality, schoolTransitionRecommendation) exist.
   /// TODO: remove after transition has been made in production
   static Map<String, dynamic> _normalizeLegacyPupilIdentityJson(
-      Map<String, dynamic> raw) {
+    Map<String, dynamic> raw,
+  ) {
     final normalized = Map<String, dynamic>.from(raw);
 
     // Legacy: specialNeeds was stored as String, often with '*' between two codes
@@ -77,9 +81,9 @@ class PupilIdentityHelper {
       }
     }
 
-    normalized['deputyGroupTutor'] ??= null;
-    normalized['nationality'] ??= null;
-    normalized['schoolTransitionRecommendation'] ??= null;
+    normalized['deputyGroupTutor'];
+    normalized['nationality'];
+    normalized['schoolTransitionRecommendation'];
     normalized['migrationBackground'] ??= false;
 
     return normalized;
@@ -179,16 +183,19 @@ class PupilIdentityHelper {
       groupTutor: pupilIdentityStringItems[4],
       schoolGrade: schoolgrade,
       specialNeeds: _specialNeedsListFromCanonical(
-          pupilIdentityStringItems[6], pupilIdentityStringItems[7]),
+        pupilIdentityStringItems[6],
+        pupilIdentityStringItems[7],
+      ),
       deputyGroupTutor: pupilIdentityStringItems.length > 21
           ? _emptyToNull(pupilIdentityStringItems[21])
           : null,
       gender: pupilIdentityStringItems[8],
       language: pupilIdentityStringItems[9],
       migrationBackground: _parseBoolCanonical(
-          pupilIdentityStringItems.length > 10
-              ? pupilIdentityStringItems[10]
-              : ''),
+        pupilIdentityStringItems.length > 10
+            ? pupilIdentityStringItems[10]
+            : '',
+      ),
       nationality: pupilIdentityStringItems.length > 22
           ? _emptyToNull(pupilIdentityStringItems[22])
           : null,
@@ -216,20 +223,22 @@ class PupilIdentityHelper {
       leavingDate: pupilIdentityStringItems[20] == ''
           ? null
           : pupilIdentityStringItems[20].tryToDateOnlyUtc(),
-      schoolTransitionRecommendation:
-          pupilIdentityStringItems.length > 23
-              ? _emptyToNull(pupilIdentityStringItems[23])
-              : null,
+      schoolTransitionRecommendation: pupilIdentityStringItems.length > 23
+          ? _emptyToNull(pupilIdentityStringItems[23])
+          : null,
     );
 
     return newPupilIdentity;
   }
 
-  static List<String>? _specialNeedsListFromCanonical(String col6, String col7) {
-    final list = [col6, col7]
-        .map((e) => e.trim())
-        .where((e) => e.isNotEmpty)
-        .toList();
+  static List<String>? _specialNeedsListFromCanonical(
+    String col6,
+    String col7,
+  ) {
+    final list = [
+      col6,
+      col7,
+    ].map((e) => e.trim()).where((e) => e.isNotEmpty).toList();
     return list.isEmpty ? null : list;
   }
 
@@ -240,7 +249,12 @@ class PupilIdentityHelper {
 
   static bool _parseBoolCanonical(String s) {
     final t = s.trim().toLowerCase();
-    return t == 'true' || t == '1' || t == 'ja' || t == 'j' || t == 'x' || t == 'yes';
+    return t == 'true' ||
+        t == '1' ||
+        t == 'ja' ||
+        t == 'j' ||
+        t == 'x' ||
+        t == 'yes';
   }
 
   Future<String> generateEncryptedPupilIdentitiesTransferString(

school_data_hub_flutter/lib/features/_authorizations/domain/authorization_manager.dart

@@ -203,7 +203,7 @@ class PupilIdentityStream {
           );
           return false;
         }
-        final session = await crypto!.completeSession(
+        final session = await crypto.completeSession(
           pendingHandshakeResult!.myEphemeralPrivateBytes,
           pendingHandshakeResult!.myEphemeralPublicBytes,
           handshake.pubKeyBase64,