import { ApplyUpdateResponse, UpdateChannel, UpdateInfo } from "@mcoda/shared";
import { GlobalCommandStatus, GlobalRepository } from "@mcoda/db";
import { SystemClient } from "@mcoda/integrations";
interface ReleasesState {
    lastCheck?: (UpdateInfo & {
        checkedAt: string;
    });
    preferences?: {
        channel?: UpdateChannel;
    };
}
export interface UpdateCheckResult {
    info: UpdateInfo;
    checkedAt: string;
    channel: UpdateChannel;
}
export type ApplyStatus = ApplyUpdateResponse["status"];
export interface ApplyResult extends ApplyUpdateResponse {
    targetVersion: string;
    npmCommand: string;
}
export declare class SystemUpdateService {
    private client;
    private repo?;
    private mcodaDir;
    private constructor();
    static create(baseUrl?: string, options?: {
        client?: SystemClient;
        repo?: GlobalRepository;
        mcodaDir?: string;
    }): Promise<SystemUpdateService>;
    close(): Promise<void>;
    private releasesPath;
    readState(): Promise<ReleasesState>;
    private writeState;
    startRun(payload: Record<string, unknown>): Promise<string | undefined>;
    finishRun(id: string | undefined, update: {
        status: GlobalCommandStatus;
        exitCode?: number;
        errorSummary?: string | null;
        result?: Record<string, unknown>;
    }): Promise<void>;
    resolveChannel(preferred?: UpdateChannel): Promise<UpdateChannel>;
    savePreferredChannel(channel: UpdateChannel): Promise<void>;
    checkUpdate(channel?: UpdateChannel): Promise<UpdateCheckResult>;
    applyUpdate(channel?: UpdateChannel): Promise<ApplyUpdateResponse>;
    recordApplyState(info: UpdateInfo, channel: UpdateChannel, targetVersion: string): Promise<void>;
    runNpmInstall(targetVersion: string, options?: {
        quiet?: boolean;
    }): Promise<{
        code: number;
    }>;
}
export {};
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