import type Database from 'better-sqlite3';
import type { Task, TaskResult, TaskDetail, TaskAddOptions, TaskMoveContext, TaskUpdateFields } from '../models/task';
import type { TaskStatus } from '../models/common';
import { validateOwnerRole } from '../validators/owner-validator';
/**
 * Add a new task to a sprint.
 *
 * v2: No captain-only owner validation. Any valid role can own a task in any stage.
 *
 * @param db - Database connection
 * @param sprintId - Sprint ID
 * @param content - Task content (nullable; can be populated via --content-file)
 * @param owner - Owner role (must be valid)
 * @param opts - Optional task properties
 * @returns The created task result
 * @throws TaskBadSprintError if sprint doesn't exist or is closed
 * @throws TaskOwnerRequiredError if owner is empty
 * @throws various validation errors
 */
export declare function addTask(db: Database.Database, sprintId: string, content: string | null, owner: string, opts?: TaskAddOptions): TaskResult;
/**
 * Move a task: status transition, stage transition, owner change, or combined.
 *
 * v2 per AD-0039 / AD-0031:
 * - Case-insensitive validation for status, stage, owner
 * - Closest-match suggestions via Levenshtein distance
 * - Free stage transitions (forward, backward, same-stage all allowed)
 * - Non-terminal Dropped (can recover to Backlog/To Do)
 * - Dry-run mode: validate without persisting
 * - Compulsory parameters: at least one of --to, --stage, --owner
 * - No --sprint override; move always operates on active sprint
 *
 * @param db - Database connection
 * @param taskId - Task ID (4-digit NNNN)
 * @param opts - Move options: targetStatus, targetStage, context, dryRun, sprintId
 * @returns Updated task result
 */
export declare function moveTask(db: Database.Database, taskId: string, opts: {
    targetStatus?: string;
    targetStage?: string;
    context?: TaskMoveContext;
    sprintId?: string;
    dryRun?: boolean;
}): TaskResult;
/**
 * Update task metadata (content/type/priority/points/scope/acceptance).
 * Does NOT change task status, stage, owner, or sprint — use moveTask for those.
 *
 * Per AD-0038: rejects stage, owner, sprint fields at the service layer.
 */
export declare function updateTask(db: Database.Database, taskId: string, fields: TaskUpdateFields, sprintId?: string): TaskResult;
/**
 * Remove a task (permanent delete).
 */
export declare function removeTask(db: Database.Database, taskId: string, sprintId?: string): void;
/**
 * Show detailed task information including sprint name and parent content.
 */
export declare function showTask(db: Database.Database, taskId: string, sprintId?: string): TaskDetail;
/**
 * List tasks for a sprint with optional filters.
 */
export declare function listTasks(db: Database.Database, sprintId: string, filters?: {
    status?: TaskStatus;
    owner?: string;
}): Task[];
/**
 * Get task status counts for a sprint.
 */
export declare function getTaskStatusCounts(db: Database.Database, sprintId: string): Record<string, number>;
export { validateOwnerRole };
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