import { Tag } from '../../../entity/tag/tagState';
import { Task } from '../../../entity/task/taskState';
import { User } from '../../../entity/user/userState';
import { ZeniDate } from '../../../zeniDayJS';
import { TaskGroupKey } from './taskList';
export type SubtaskSortKey = 'name' | 'status' | 'assignee' | 'tag';
export type SubtaskSortOrder = 'asc' | 'desc';
export declare const getDueDateValueFromDueDateGroupId: (groupId: string) => ZeniDate;
export declare const getTaskUpdates: (groupByKey: TaskGroupKey, groupId: string) => Partial<Task>;
/**
 * Sort a subtask list by one of the sortable columns. Pure — no state
 * dependency. `statusOrder` is derived from `allTaskStatus` so any new
 * status added upstream slots in by its enum position instead of
 * falling into a catch-all bucket.
 */
export declare const sortSubtasks: (subtasks: Task[], sortKey: SubtaskSortKey | null, sortOrder: SubtaskSortOrder, userList: User[], tagList: Tag[]) => Task[];