Function updateTaskState

src/utils/task/framework.ts:48–72

(
  taskId: string,
  setAppState: SetAppState,
  updater: (task: T) => T,
)

 * Generic to allow type-safe updates for specific task types.
 */
export function updateTaskState<T extends TaskState>(
  taskId: string,
  setAppState: SetAppState,
  updater: (task: T) => T,
): void {
  setAppState(prev => {
    const task = prev.tasks?.[taskId] as T | undefined
    if (!task) {
      return prev
    }
    const updated = updater(task)
    if (updated === task) {
      // Updater returned the same reference (early-return no-op). Skip the
      // spread so s.tasks subscribers don't re-render on unchanged state.
      return prev
    }
    return {
      ...prev,
      tasks: {
        ...prev.tasks,
        [taskId]: updated,
      },
    }
  })
}

/**
 * Register a new task in AppState.