commit 188819b26c02dbb34d0ed5d30785ac8623bdf88e
Author: Chen Asraf <chen@asraf.me>
Date:   Tue Jan 12 02:56:41 2021 +0200

    first commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3d64647
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+# Files and directories created by pub
+.dart_tool/
+.packages
+
+# Conventional directory for build outputs
+build/
+
+# Directory created by dartdoc
+doc/api/
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..87b1e56
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,17 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "dart_todo",
+      "request": "launch",
+      "program": "${workspaceFolder}/bin/todo.dart",
+      "args": [
+        "${workspaceFolder}/example.todo"
+      ],
+      "type": "dart"
+    }
+  ]
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..687440b
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+## 1.0.0
+
+- Initial version, created by Stagehand
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..fd03181
--- /dev/null
+++ b/README.md
@@ -0,0 +1,5 @@
+A sample command-line application with an entrypoint in `bin/`, library code
+in `lib/`, and example unit test in `test/`.
+
+Created from templates made available by Stagehand under a BSD-style
+[license](https://github.com/dart-lang/stagehand/blob/master/LICENSE).
diff --git a/analysis_options.yaml b/analysis_options.yaml
new file mode 100644
index 0000000..a686c1b
--- /dev/null
+++ b/analysis_options.yaml
@@ -0,0 +1,14 @@
+# Defines a default set of lint rules enforced for
+# projects at Google. For details and rationale,
+# see https://github.com/dart-lang/pedantic#enabled-lints.
+include: package:pedantic/analysis_options.yaml
+
+# For lint rules and documentation, see http://dart-lang.github.io/linter/lints.
+# Uncomment to specify additional rules.
+# linter:
+#   rules:
+#     - camel_case_types
+
+analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
diff --git a/bin/todo.dart b/bin/todo.dart
new file mode 100644
index 0000000..80c228a
--- /dev/null
+++ b/bin/todo.dart
@@ -0,0 +1,10 @@
+import 'dart:io';
+
+import 'package:dart_todo/gui.dart';
+import 'package:dart_todo/todo.dart';
+
+void main(List<String> arguments) async {
+  final project = Project(File(arguments.elementAt(0)));
+  await project.loadTodos();
+  GUI(project: project);
+}
diff --git a/example.todo b/example.todo
new file mode 100644
index 0000000..0ec6f8f
--- /dev/null
+++ b/example.todo
@@ -0,0 +1,6 @@
+- [ ] Come up with plan
+- [ ] Destroy the world
+- [ ] Create solution
+- [ ] Charge lots of $$$ for solution
+- [ ] test
+- [ ] another test
diff --git a/lib/file_handler.dart b/lib/file_handler.dart
new file mode 100644
index 0000000..e232b03
--- /dev/null
+++ b/lib/file_handler.dart
@@ -0,0 +1 @@
+part of 'todo.dart';
diff --git a/lib/gui.dart b/lib/gui.dart
new file mode 100644
index 0000000..865600e
--- /dev/null
+++ b/lib/gui.dart
@@ -0,0 +1,155 @@
+import 'dart:io';
+
+import 'package:dart_console/dart_console.dart';
+import 'package:dart_todo/todo.dart';
+
+class GUI {
+  final Project project;
+  final Console console;
+
+  bool frozen = false;
+  int activeIndex = 0;
+
+  GUI({this.project}) : console = Console() {
+    stdin.echoMode = false;
+    stdin.lineMode = false;
+    stdin.listen(_stdinListener);
+    _paint();
+  }
+
+  int get lines => stdout.terminalLines;
+  int get width => stdout.terminalColumns;
+  int get maxLines => project.todos.length;
+  String get verticalBorder => '-' * (width - 3);
+
+  Todo get currentTodo => project.todos.elementAt(activeIndex);
+
+  void _paint() {
+    if (frozen) {
+      return;
+    }
+    console.clearScreen();
+    _print(verticalBorder);
+    _print('');
+
+    for (var i = 0; i < project.todos.length; i++) {
+      final todo = project.todos.elementAt(i);
+      final selected = i == activeIndex;
+      final indent = 4;
+      final line = [
+        ' ' * (selected ? indent - 1 : indent),
+        selected ? '> ' : ' ',
+        (todo.done ? '√' : '×').padRight(3),
+        todo.title,
+      ].where((s) => s.isNotEmpty).join(' ');
+      _print(line);
+    }
+    final spareLines = lines - project.todos.length - 6;
+    if (spareLines > 0) {
+      for (var i = 0; i < spareLines; i++) {
+        _print('');
+      }
+    }
+    _print((' ' * 10) + '[enter/space] - toggle | [esc/q] - quit');
+    _print(verticalBorder);
+  }
+
+  String _ensureLength(String message) =>
+      '|' + message.padRight(width - '||\n'.length, ' ') + '|\n';
+  void _print(String message) => console.write(_ensureLength(message));
+
+  void _stdinListener(List<int> charCodes) {
+    if (!frozen) {
+      _handleGUIInput(keyMap[charCodes.last]);
+    } else {
+      final title = String.fromCharCodes(charCodes);
+      project.addTodo(Todo(title: title));
+      _exitTextInputMode();
+    }
+    _paint();
+  }
+
+  void _handleGUIInput(Key key) {
+    switch (key) {
+      case Key.down:
+        activeIndex++;
+        if (activeIndex >= maxLines) {
+          activeIndex = 0;
+        }
+        break;
+      case Key.up:
+        activeIndex--;
+        if (activeIndex < 0) {
+          activeIndex = maxLines - 1;
+        }
+        break;
+      case Key.enter:
+      case Key.space:
+        currentTodo.toggle();
+        break;
+      case Key.c:
+      case Key.a:
+        _enterTextInputMode();
+        console.write('Enter title: ');
+        break;
+      case Key.e:
+        //TODO: edit current todo
+        break;
+      case Key.d:
+      case Key.backspace:
+        project.removeTodo(currentTodo);
+        break;
+      case Key.q:
+      case Key.esc:
+        exit(0);
+        break;
+      case Key.left:
+      case Key.right:
+        break;
+    }
+  }
+
+  void _enterTextInputMode() {
+    frozen = true;
+    stdin.echoMode = true;
+    stdin.lineMode = true;
+  }
+
+  void _exitTextInputMode() {
+    frozen = false;
+    stdin.echoMode = false;
+    stdin.lineMode = false;
+  }
+
+  final keyMap = <int, Key>{
+    32: Key.space,
+    65: Key.up,
+    66: Key.down,
+    67: Key.right,
+    68: Key.left,
+    10: Key.enter,
+    27: Key.esc,
+    113: Key.q,
+    123: Key.backspace,
+    97: Key.a,
+    99: Key.c,
+    100: Key.d,
+    101: Key.e,
+  };
+}
+
+enum Key {
+  up,
+  right,
+  down,
+  left,
+  enter,
+  esc,
+  space,
+  backspace,
+  q,
+  a,
+  c,
+  d,
+  e,
+}
diff --git a/lib/todo.dart b/lib/todo.dart
new file mode 100644
index 0000000..5bdb68d
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+++ b/lib/todo.dart
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+import 'dart:io';
+part 'file_handler.dart';
+
+class Todo {
+  String _title;
+  bool _done;
+  final void Function() onUpdate;
+
+  Todo({
+    String title,
+    bool done,
+    this.onUpdate,
+  })  : _title = title,
+        _done = done ?? false;
+
+  Todo.parseLine(String line, {this.onUpdate}) {
+    final genericException = FormatException('Todo is malformed', line, 0);
+    final checkedException = FormatException(
+        'Todo does not contain "checked" token (v/x)',
+        line,
+        line.indexOf(RegExp(r'\[')) + 1);
+    final pattern = RegExp(r'^- \[[ x]\]');
+    try {
+      final match = pattern.matchAsPrefix(line);
+
+      if (match == null) {
+        throw genericException;
+      }
+
+      final split = [
+        line.substring(0, match.end),
+        line.substring(match.end + 1),
+      ];
+
+      if (split.any((i) => i?.isNotEmpty != true)) {
+        throw genericException;
+      }
+
+      switch (split[0].replaceAll(' ', '')) {
+        case '-[]':
+          _done = false;
+          break;
+        case '-[x]':
+          _done = true;
+          break;
+        default:
+          throw checkedException;
+      }
+
+      _title = split[1];
+    } on RangeError catch (_) {
+      throw genericException;
+    }
+  }
+
+  String get title => _title;
+  set title(String value) => _update(_title = value);
+
+  bool get done => _done;
+  set done(bool value) => _update(_done = value);
+
+  void _update([dynamic _expr]) {
+    if (_expr is void Function()) {
+      _expr.call();
+    }
+    onUpdate?.call();
+  }
+
+  void toggle() {
+    done = !done;
+  }
+
+  Todo copyWith({
+    String title,
+    bool done,
+    final void Function() onUpdate,
+  }) =>
+      Todo(
+        title: title ?? this.title,
+        done: done ?? this.done ?? false,
+        onUpdate: onUpdate ?? this.onUpdate,
+      );
+
+  String toMarkdown() => '- [${done ? "x" : " "}] $title';
+
+  @override
+  String toString() => '$runtimeType($title, done: $done)';
+}
+
+class Project {
+  List<Todo> todos = [];
+  File file;
+
+  Project(this.file);
+
+  void _dumpToFile() {
+    file.writeAsString(toMarkdown());
+  }
+
+  void create(String name) {
+    _checkAndCreateFile(File('$name.todo'));
+  }
+
+  void loadTodos() async {
+    final content = await file.readAsLinesSync();
+    for (final line in content) {
+      todos.add(Todo.parseLine(line, onUpdate: _dumpToFile));
+    }
+  }
+
+  Future<void> _checkAndCreateFile(File file) async {
+    if (await file.exists() == false) {
+      await file.create();
+    }
+  }
+
+  String toMarkdown() => todos.map((t) => t.toMarkdown()).join('\r\n');
+
+  void addTodo(Todo todo) {
+    todos.add(todo.copyWith(onUpdate: _dumpToFile));
+    _dumpToFile();
+  }
+
+  void removeTodo(Todo todo) {
+    todos.removeWhere((t) => t.title == todo.title);
+    _dumpToFile();
+  }
+}
diff --git a/pubspec.lock b/pubspec.lock
new file mode 100644
index 0000000..b592e80
--- /dev/null
+++ b/pubspec.lock
@@ -0,0 +1,383 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "14.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.41.1"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.2"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.3"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.14.13"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.2"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.5"
+  dart_console:
+    dependency: "direct main"
+    description:
+      name: dart_console
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.2"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.2.1"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.2"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.4"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.4"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.2"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.11.4"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.9"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.4"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.7"
+  node_interop:
+    dependency: transitive
+    description:
+      name: node_interop
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  node_io:
+    dependency: transitive
+    description:
+      name: node_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.12"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.3"
+  path:
+    dependency: "direct main"
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  pedantic:
+    dependency: "direct dev"
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.2"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.0"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.4"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.9"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.9+1"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.3"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.9"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.6"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  test:
+    dependency: "direct dev"
+    description:
+      name: test
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.15.7"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.18+1"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.11+4"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.2.0"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.7+15"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.4"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.4"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.1"
+sdks:
+  dart: ">=2.10.0 <3.0.0"
diff --git a/pubspec.yaml b/pubspec.yaml
new file mode 100644
index 0000000..265079b
--- /dev/null
+++ b/pubspec.yaml
@@ -0,0 +1,14 @@
+name: dart_todo
+description: A fully fledged, simple to use to do terminal app
+version: 1.0.0
+# homepage: https://www.example.com
+environment:
+  sdk: ">=2.10.0 <3.0.0"
+
+dependencies:
+  dart_console: ^0.6.2
+  path: ^1.7.0
+
+dev_dependencies:
+  pedantic: ^1.9.0
+  test: ^1.14.4
diff --git a/test/dart_todo_test.dart b/test/dart_todo_test.dart
new file mode 100644
index 0000000..c8df8a8
--- /dev/null
+++ b/test/dart_todo_test.dart
@@ -0,0 +1,27 @@
+import 'package:dart_todo/todo.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('create todo done', () {
+    final correctDone = '- [x] I did this';
+    final todoDone = Todo.parseLine(correctDone);
+
+    expect(todoDone.done, equals(true));
+    expect(todoDone.title, equals('I did this'));
+  });
+  test('create todo not done', () {
+    final correctNotDone = '- [ ] I did not do this';
+    final todoNotDone = Todo.parseLine(correctNotDone);
+
+    expect(todoNotDone.done, equals(false));
+    expect(todoNotDone.title, equals('I did not do this'));
+  });
+  test('create todo with bad format - throws', () {
+    final incorrect1 = "I don't know if I did this";
+    final incorrect2 = '- [ ]';
+    final incorrect3 = "[] I don't know if I did this";
+    expect(() => Todo.parseLine(incorrect1), throwsFormatException);
+    expect(() => Todo.parseLine(incorrect2), throwsFormatException);
+    expect(() => Todo.parseLine(incorrect3), throwsFormatException);
+  });
+}