// ── Enums ────────────────────────────────────────────────

export enum TaskMetaStatus {
  PENDING = "PENDING",
  IN_PROGRESS = "IN_PROGRESS",
  COMPLETED = "COMPLETED",
  FAILED = "FAILED",
  STOPPED = "STOPPED",
  CANCELLED = "CANCELLED",
}

export enum SplitStrategy {
  BY_COUNT = "BY_COUNT",
  BY_FILE = "BY_FILE",
  BY_PERCENTAGE = "BY_PERCENTAGE",
  MANUAL = "MANUAL",
}

export enum TaskModule {
  ANNOTATION = "ANNOTATION",
  CLEANING = "CLEANING",
  EVALUATION = "EVALUATION",
  SYNTHESIS = "SYNTHESIS",
  COLLECTION = "COLLECTION",
  RATIO = "RATIO",
}

export enum AssignmentAction {
  ASSIGN = "ASSIGN",
  REASSIGN = "REASSIGN",
  REVOKE = "REVOKE",
}

// ── Response Interfaces ──────────────────────────────────

export interface AssigneeInfo {
  id: number;
  username: string;
  fullName?: string;
}

export interface TaskMetaDto {
  id: string;
  parentId?: string;
  module: string;
  refTaskId: string;
  taskName: string;
  status: TaskMetaStatus;
  assignedTo?: number;
  assigneeName?: string;
  progress: number;
  totalItems: number;
  completedItems: number;
  failedItems: number;
  splitStrategy?: string;
  splitConfig?: string;
  priority: number;
  deadline?: string;
  remark?: string;
  createdBy?: number;
  createdAt: string;
  updatedAt: string;
  childCount: number;
  assignee?: AssigneeInfo;
}

export interface TaskAssignmentLogDto {
  id: number;
  taskMetaId: string;
  action: AssignmentAction;
  userId?: number;
  userName?: string;
  remark?: string;
  operatorId?: number;
  operatorName?: string;
  createdAt: string;
}

export interface ChildTaskProgressDto {
  taskId: string;
  taskName: string;
  assignee?: AssigneeInfo;
  progress: number;
  totalItems: number;
  completedItems: number;
  failedItems: number;
  status: TaskMetaStatus;
}

export interface TaskProgressResponse {
  taskId: string;
  taskName: string;
  overallProgress: number;
  totalItems: number;
  completedItems: number;
  failedItems: number;
  status: TaskMetaStatus;
  children: ChildTaskProgressDto[];
}

// ── Request Interfaces ───────────────────────────────────

export interface CreateTaskMetaRequest {
  module: string;
  refTaskId: string;
  taskName: string;
  assignedTo?: number;
  totalItems?: number;
  priority?: number;
  deadline?: string;
}

export interface SplitAssignment {
  userId?: number;
  proportion?: number;
  itemCount?: number;
  taskName?: string;
}

export interface SplitTaskRequest {
  strategy: SplitStrategy;
  splitConfig?: Record<string, unknown>;
  assignments: SplitAssignment[];
}

export interface AssignTaskRequest {
  userId: number;
  remark?: string;
}

export interface BatchTaskAssignment {
  taskMetaId: string;
  userId: number;
  remark?: string;
}

export interface BatchAssignRequest {
  assignments: BatchTaskAssignment[];
}

export interface UpdateProgressRequest {
  progress?: number;
  totalItems?: number;
  completedItems?: number;
  failedItems?: number;
  status?: TaskMetaStatus;
}

// ── User (for assignment selectors) ──────────────────────

export interface UserOption {
  id: number;
  username: string;
  fullName?: string;
}