import type Database from 'better-sqlite3';
import type { Sprint, SprintResult, SprintOverview } from '../models/sprint';
import type { SprintStatus } from '../models/common';
/**
 * Create a new sprint.
 *
 * @param db - Database connection
 * @param id - Sprint ID (unique)
 * @param name - Optional sprint name
 * @param goal - Optional sprint goal
 * @returns The created sprint result
 * @throws SprintInvalidError if ID is empty
 * @throws SprintDuplicateError if ID already exists
 */
export declare function createSprint(db: Database.Database, id: string, name?: string, goal?: string): SprintResult;
/**
 * Get a sprint overview with task counts by status.
 *
 * @param db - Database connection
 * @param sprintId - Optional sprint ID (resolves default if omitted)
 * @returns Sprint overview with task counts
 * @throws SprintNotFoundError if sprint doesn't exist
 * @throws SprintNoneError if no sprintId and no sprints exist
 */
export declare function getSprintOverview(db: Database.Database, sprintId?: string): SprintOverview;
/**
 * Get active (non-Done, non-Dropped) tasks for a sprint.
 */
export declare function getSprintActiveTasks(db: Database.Database, sprintId?: string): Array<Record<string, unknown>>;
/**
 * List sprints with optional filters.
 */
export declare function listSprints(db: Database.Database, filters?: {
    status?: SprintStatus;
}): Sprint[];
/**
 * Transition a sprint from one status to another.
 *
 * @param db - Database connection
 * @param id - Sprint ID
 * @param target - Target sprint status
 * @returns Updated sprint result
 * @throws SprintNotFoundError if sprint doesn't exist
 * @throws SprintBadStatusError if target is not a valid sprint status
 * @throws SprintTransitionError if transition is not allowed
 */
export declare function transitionSprintStatus(db: Database.Database, id: string, target: string): SprintResult;
/**
 * Update a sprint's mutable properties (name, goal).
 * Uses per-sprint advisory locking (kanban:sprint{<id>}) following AD-0015.
 *
 * @param db - Database connection
 * @param id - Sprint ID
 * @param updates - Partial update; absent fields are unchanged, empty string replaces
 * @returns Updated sprint result
 * @throws SprintNotFoundError if sprint doesn't exist
 * @throws LockTimeoutError if lock cannot be acquired
 */
export declare function updateSprint(db: Database.Database, id: string, updates: {
    name?: string;
    goal?: string;
}): SprintResult;
/**
 * Resolve the default sprint (most recently created non-CLOSED sprint).
 * Implements AD-0010: Default Sprint Resolution by Recency.
 *
 * @throws SprintNoneError if no sprints exist
 * @throws SprintNotFoundError if a specific ID was given but not found
 */
export declare function resolveSprint(db: Database.Database, sprintId?: string): Sprint;
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