import { ApiErrorResponse } from '@userfrosting/sprinkle-core/interfaces';
import { UserCreateRequest, UserEditRequest, UserResponse } from '../interfaces';
/**
 * Vue composable for User CRUD operations.
 *
 * Endpoints:
 * - GET    /api/users/u/{user_name}  -> UserResponse
 * - POST   /api/users                -> UserCreateResponse
 * - PUT    /api/users/u/{user_name}  -> UserEditResponse
 * - DELETE /api/users/u/{user_name}  -> UserDeleteResponse
 *
 * Reactive state:
 * - apiLoading: boolean
 * - apiError: ApiErrorResponse | null
 * - formData: UserCreateRequest
 * - r$: validation state from Regle for formData
 *
 * Methods:
 * - fetchUser(user_name: string): Promise<UserResponse>
 * - createUser(data: UserCreateRequest): Promise<void>
 * - updateUser(user_name: string, data: UserEditRequest): Promise<void>
 * - deleteUser(user_name: string): Promise<void>
 * - resetForm(): void
 */
export declare function useUserApi(): {
    fetchUser: (user_name: string) => Promise<UserResponse>;
    createUser: (data: UserCreateRequest) => Promise<void>;
    updateUser: (user_name: string, data: UserEditRequest) => Promise<void>;
    deleteUser: (user_name: string) => Promise<void>;
    apiError: import('vue').Ref<ApiErrorResponse | null | undefined, ApiErrorResponse | null | undefined>;
    apiLoading: import('vue').Ref<boolean, boolean>;
    formData: import('vue').Ref<{
        user_name: string;
        group_id: number | null;
        first_name: string;
        last_name: string;
        email: string;
        locale: string;
    }, UserCreateRequest | {
        user_name: string;
        group_id: number | null;
        first_name: string;
        last_name: string;
        email: string;
        locale: string;
    }>;
    r$: import('vue').Raw<import('@regle/core').RegleRoot<{
        user_name: string;
        group_id: number | null;
        first_name: string;
        last_name: string;
        email: string;
        locale: string;
    }, Record<string, any>, Record<string, import('@regle/core').RegleValidationGroupEntry[]>, import('@regle/core').RegleShortcutDefinition<any>>>;
    resetForm: () => void;
};