import { User } from '../../../domain/entities/User.js';
import { UserId } from '../../../domain/value-objects/UserId.js';
import { Username } from '../../../domain/value-objects/Username.js';
/**
 * User Repository Port - Outbound Port
 * Interface for user data access
 */
export interface IUserRepository {
    /**
     * Find a user by their unique ID
     * @param id - The user's unique identifier
     * @returns The user if found, null otherwise
     */
    findById(id: UserId): Promise<User | null>;
    /**
     * Find a user by their username
     * @param username - The username to search for
     * @returns The user if found, null otherwise
     */
    findByUsername(username: Username): Promise<User | null>;
    /**
     * Get all users in the system
     * @returns Array of all users
     */
    findAll(): Promise<User[]>;
    /**
     * Save a user (create or update)
     * @param user - The user entity to save
     */
    save(user: User): Promise<void>;
    /**
     * Delete a user by their ID
     * @param id - The user's unique identifier
     */
    delete(id: UserId): Promise<void>;
    /**
     * Get the total count of users
     * @returns The number of users in the system
     */
    count(): Promise<number>;
}
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