/**
 * Self-Upgrade System - Stub Implementation
 *
 * The full self-upgrade functionality has been removed.
 * This stub maintains API compatibility for dependent modules.
 */
import { EventEmitter } from 'node:events';
export interface UpgradeSessionState {
    workingDir: string;
    fromVersion: string;
    timestamp: number;
    contextSummary?: string;
    pendingTasks?: string[];
    rlContext?: RLUpgradeContext;
    activeEdits?: unknown;
}
export interface RLUpgradeContext {
    currentEpoch?: number;
    performance?: number;
    iteration?: number;
    variant?: string;
    objective?: string;
    currentScore?: number;
    filesModified?: string[];
}
export interface SelfUpgradeConfig {
    workingDir?: string;
    autoRestart?: boolean;
    logger?: (msg: string) => void;
    sessionState?: UpgradeSessionState;
}
export interface BuildState {
    success: boolean;
    output?: string;
}
export interface TestState {
    passed: number;
    failed: number;
}
export interface UpgradeResult {
    success: boolean;
    buildSuccess?: boolean;
    testState: TestState;
    fromVersion?: string;
    toVersion?: string;
    error?: string;
}
export interface VersionInfo {
    current: string;
    latest: string;
    updateAvailable: boolean;
}
export type UpgradeEventType = 'upgrade' | 'check' | 'error';
export interface UpgradeEvent {
    type: UpgradeEventType;
    message?: string;
}
export declare class SelfUpgrade extends EventEmitter {
    private logger?;
    constructor(config?: SelfUpgradeConfig);
    checkForUpdates(): Promise<VersionInfo>;
    upgradeWithFullVerification(_version: string, _buildCommand?: string, _testCommand?: string): Promise<UpgradeResult>;
    npmInstallFresh(_version?: string): Promise<UpgradeResult>;
    saveSessionState(_state: UpgradeSessionState): void;
    loadSessionState(): UpgradeSessionState | null;
    clearSessionState(): void;
    saveRLCheckpoint(_context: RLUpgradeContext): void;
    saveActiveEdits(_edits: unknown): void;
    launchNewInstance(_waitForClose?: boolean): Promise<void>;
    static wasUpgraded(): boolean;
    static getUpgradeFromVersion(): string | null;
}
export declare function getSelfUpgrade(config?: SelfUpgradeConfig): SelfUpgrade;
export declare function resetSelfUpgrade(): void;
export declare function upgradeToLatest(): Promise<UpgradeResult>;
export declare function upgradeAndVerify(): Promise<UpgradeResult>;
export declare function saveUpgradeState(_state: UpgradeSessionState): void;
export declare function resumeAfterUpgrade(): UpgradeSessionState | null;
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