character hash

lib/classes/providers/character.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 import 'dart:async';
 import 'dart:convert';
 
+import 'package:crypto/crypto.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/material.dart';
@@ -15,7 +16,6 @@ import 'package:shared_preferences/shared_preferences.dart';
 class Character extends ChangeNotifier {
   File? _profile;
 
-  Key _key = UniqueKey();
   bool _useSystem = true;
   String _name = "Maid";
   String _description = "";
@@ -69,7 +69,6 @@ class Character extends ChangeNotifier {
   }
 
   void from(Character character) async {
-    _key = character.key;
     _profile = await character.profile;
     _useSystem = character.useSystem;
     _name = character.name;
@@ -86,7 +85,6 @@ class Character extends ChangeNotifier {
   }
 
   Future<void> fromMap(Map<String, dynamic> inputJson) async {
-    _key = UniqueKey();
     if (inputJson["profile"] != null) {
       _profile = File(inputJson["profile"]);
     }
@@ -308,7 +306,31 @@ class Character extends ChangeNotifier {
     return _profile ??= await Utilities.fileFromAssetImage("defaultCharacter.png");
   }
 
-  Key get key => _key;
+  String get hash {
+    Uint8List bytes;
+
+    if(_profile != null) {
+      bytes = _profile!.readAsBytesSync();
+    } else {
+      List<String> hashList = [
+        _name,
+        _description,
+        _personality,
+        _scenario,
+        _system,
+        _useGreeting.toString(),
+        _greetings.join(),
+        _useExamples.toString(),
+        _examples.join(),
+      ];
+
+      bytes = utf8.encode(hashList.join());
+    }
+
+    return sha256.convert(bytes).toString();
+  }
+
+  Key get key => ValueKey(hash);
 
   String get name => _name;