| 26 | @ft.observable |
| 27 | @dataclass |
| 28 | class TodoAppState: |
| 29 | tasks: list[TaskItem] = field(default_factory=list) |
| 30 | statuses: list[str] = field(default_factory=lambda: ["all", "active", "completed"]) |
| 31 | status: str = "all" |
| 32 | |
| 33 | def get_tasks(self) -> list[TaskItem]: |
| 34 | return list( |
| 35 | filter( |
| 36 | lambda task: self.status == "all" |
| 37 | or self.status == "active" |
| 38 | and not task.completed |
| 39 | or self.status == "completed" |
| 40 | and task.completed, |
| 41 | self.tasks, |
| 42 | ) |
| 43 | ) |
| 44 | |
| 45 | @property |
| 46 | def active_tasks_number(self) -> int: |
| 47 | return len([task for task in self.tasks if not task.completed]) |
| 48 | |
| 49 | def status_changed(self, e: ft.Event[ft.Tabs]): |
| 50 | self.status = self.statuses[e.control.selected_index] |
| 51 | |
| 52 | def on_task_status_changed(self): |
| 53 | cast(ft.Observable, self).notify() |
| 54 | |
| 55 | def add_task(self, new_task_event: str): |
| 56 | self.tasks.append( |
| 57 | TaskItem(new_task_event, on_status_changed=self.on_task_status_changed) |
| 58 | ) |
| 59 | |
| 60 | def delete_task(self, task: TaskItem): |
| 61 | self.tasks.remove(task) |
| 62 | |
| 63 | def clear_completed(self): |
| 64 | self.tasks = list(filter(lambda task: not task.completed, self.tasks)) |
| 65 | |
| 66 | |
| 67 | @ft.component |