@ledgerhq/live-common/src/hw/installFinalFirmware.ts

Common ground for the Ledger Live apps

import Transport from "@ledgerhq/hw-transport";
import { Observable, from, concat, of } from "rxjs";
import { mergeMap } from "rxjs/operators";
import ManagerAPI from "../manager/api";
import getDeviceInfo from "./getDeviceInfo";
import { getProviderId } from "../manager";
import type { DeviceInfo, FinalFirmware } from "@ledgerhq/types-live";
export const fetchNextFirmware = (deviceInfo: DeviceInfo): Observable<FinalFirmware> =>
  from(ManagerAPI.getDeviceVersion(deviceInfo.targetId, getProviderId(deviceInfo))).pipe(
    mergeMap(device =>
      from(
        ManagerAPI.getCurrentOSU({
          deviceId: device.id,
          version: deviceInfo.version,
          provider: getProviderId(deviceInfo),
        }),
      ),
    ),
    mergeMap(firmware =>
      from(ManagerAPI.getFinalFirmwareById(firmware.next_se_firmware_final_version)),
    ),
  );
export default (transport: Transport): Observable<any> =>
  from(getDeviceInfo(transport)).pipe(
    mergeMap(deviceInfo =>
      fetchNextFirmware(deviceInfo).pipe(
        mergeMap(nextFirmware =>
          concat(
            of({
              type: "install",
              step: "firmware",
            }),
            ManagerAPI.install(transport, "firmware", {
              targetId: deviceInfo.targetId,
              firmware: nextFirmware.firmware,
              firmwareKey: nextFirmware.firmware_key,
              perso: nextFirmware.perso,
            }),
          ),
        ),
      ),
    ),
  );