import { type AutoUpdateMode, type AutoUpdateState } from "./types.js";
/** Minimal logger contract so the store does not depend on a concrete logger. */
interface LoggerLike {
    warn(...args: unknown[]): void;
}
/**
 * Reads and writes {@link AutoUpdateState} to a JSON file in the plugin
 * state directory so that deduplication counters and notification history
 * survive gateway restarts.
 */
export declare class AutoUpdateStateStore {
    private readonly stateDir;
    private readonly logger?;
    private readonly filePath;
    constructor(stateDir: string, logger?: LoggerLike | undefined);
    /**
     * Load persisted state, merging it with fresh defaults for the running
     * version and effective mode.
     *
     * Returns clean defaults when the file is missing (first run).
     * Logs a warning and returns defaults when the file exists but cannot
     * be read or parsed (e.g. corruption, permission error).
     */
    load(currentVersion: string, effectiveMode: AutoUpdateMode): Promise<AutoUpdateState>;
    /** Atomically write the state to disk, creating the directory if needed. */
    save(state: AutoUpdateState): Promise<void>;
}
export {};
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