Initial commit

lib/elems/filehandler.dart

@@ -0,0 +1,75 @@
+import 'package:path_provider/path_provider.dart';
+import 'dart:convert';
+import 'dart:io';
+class FileHandler {
+
+  static Future<String> get localPath async {
+    final directory = await getApplicationDocumentsDirectory();
+    return directory.path;
+  }
+
+  static Future<File> get localFile async {
+    final path = await localPath;
+    return File("$path/todos.json");
+  }
+
+  static Future<dynamic> get fileContent async {
+    await existCheck();
+    File f = await localFile;
+    String content = await f.readAsString();
+    final js = await json.decode(content);
+    return js;
+  }
+
+  static Future<void> saveFile(js) async {
+    File f = await localFile;
+    String content = json.encode(js);
+    f.writeAsString(content);
+  }
+
+  static Future<void> saveList(js, String listName) async {
+    final content = await fileContent;
+    content[listName] = js;
+    await saveFile(content);
+  }
+
+  static Future<void> renameList(String oldListName, String newListName) async {
+    var newJs = {};
+
+    final content = await fileContent;
+    for (String key in content.keys) {
+      if (key != oldListName) {
+        newJs[key] = content[key];
+      } else {
+        newJs[newListName] = content[key];
+      }
+    }
+    await saveFile(newJs);
+  }
+
+  static Future<void> addList(String listName) async {
+    var js = await fileContent;
+    js[listName] = {};
+    await saveFile(js);
+  }
+
+  static Future<void> removeList(String listName) async {
+    final js = await fileContent;
+    var newJs = {};
+    for (String key in js.keys) {
+      if (key != listName) {
+        newJs[key] = js[key];
+      }
+    }
+    await saveFile(newJs);
+  }
+
+  static Future<void> existCheck() async {
+    File f = await localFile;
+    bool exists = await f.exists();
+
+    if (!exists) {
+      await saveFile({"Personal": {}});
+    }
+  }
+}

lib/elems/todo.dart

@@ -0,0 +1,9 @@
+import 'package:flutter/material.dart';
+
+class Todo {
+  Todo({required this.title, required this.widget, required this.checked});
+
+  String title;
+  Widget widget;
+  bool checked;
+}

lib/elems/todolist.dart

@@ -0,0 +1,10 @@
+import 'package:flutter/material.dart';
+import 'package:todoapp/elems/todo.dart';
+
+class TodoList {
+  TodoList({required this.title, required this.widget, required this.todos});
+
+  String title;
+  Widget widget;
+  List<Todo> todos;
+}