/**
 * Arial Server - User repository
 *
 * CRUD operations for user authentication data
 */
import type { CreateUserData, User } from "./types.js";
/**
 * Create a new user or update if GitHub ID already exists
 */
export declare function upsertUser(data: CreateUserData): User;
/**
 * Get user by ID
 */
export declare function getUserById(id: string): User | null;
/**
 * Get user by GitHub ID
 */
export declare function getUserByGithubId(githubId: number): User | null;
/**
 * Get user by GitHub username
 */
export declare function getUserByUsername(username: string): User | null;
/**
 * Update user's GitHub access token
 */
export declare function updateUserToken(userId: string, accessToken: string, scope: string): void;
/**
 * Update user's refresh token hash
 */
export declare function updateRefreshTokenHash(userId: string, refreshTokenHash: string): void;
/**
 * Increment user's token version (invalidates all refresh tokens)
 */
export declare function incrementTokenVersion(userId: string): number;
/**
 * Get user's current token version
 */
export declare function getTokenVersion(userId: string): number;
/**
 * Get user's refresh token hash
 */
export declare function getRefreshTokenHash(userId: string): string | null;
/**
 * Delete a user
 */
export declare function deleteUser(userId: string): boolean;
/**
 * List all users (for admin purposes)
 */
export declare function listUsers(): User[];
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