import { Observable } from "rxjs";
import type { FirmwareUpdateContext, DeviceId, DeviceInfo } from "@ledgerhq/types-live";
import { GetLatestFirmwareTaskError } from "../tasks/getLatestFirmware";
import { GetDeviceInfoTaskError } from "../tasks/getDeviceInfo";
import { FullActionState } from "./core";
export type GetLatestAvailableFirmwareActionArgs = {
    deviceId: DeviceId;
    deviceName: string | null;
};
export type GetLatestAvailableFirmwareActionErrorName = GetDeviceInfoTaskError | GetLatestFirmwareTaskError;
export type GetLatestAvailableFirmwareActionState = FullActionState<{
    error: {
        type: "GetLatestAvailableFirmwareError";
        name: GetLatestAvailableFirmwareActionErrorName;
    } | null;
    firmwareUpdateContext: FirmwareUpdateContext | null;
    deviceInfo: DeviceInfo | null;
    status: "idle" | "ongoing" | "error" | "no-available-firmware" | "available-firmware";
}>;
export declare const initialState: GetLatestAvailableFirmwareActionState;
/**
 * Get the latest available firmware that the device could update to
 *
 * @param `deviceId` A device id, or an empty string if device is usb plugged
 * @returns an Observables that emits the evolution of the state machine until finding (or not)
 * the latest available firmware. The state is as follow (+ shared state with other actions):
 * - `firmwareUpdateContext`: the `FirmwareUpdateContext` when retrieved, null otherwise
 * - `deviceInfo`: the `DeviceInfo` when retrieved, null otherwise
 * - `status`: the current status of the action: "error" | "no-available-firmware" | "available-firmware" meaning the action has finished
 * - `error`: an error coming from the business logic, the device or internal. Some error are retried:
 *   `{ type`: "SharedError", retrying: true, ... }`
 * - `...sharedActionState`
 */
export declare function getLatestAvailableFirmwareAction({ deviceId, deviceName, }: GetLatestAvailableFirmwareActionArgs): Observable<GetLatestAvailableFirmwareActionState>;
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