import type { ControllerGetStateAction, ControllerStateChangeEvent } from "@metamask/base-controller";
import { BaseController } from "@metamask/base-controller";
import type { Messenger } from "@metamask/messenger";
import type { LoggingControllerMethodActions } from "./LoggingController-method-action-types.mjs";
import type { Log } from "./logTypes/index.mjs";
/**
 * LogEntry is the entry that will be added to the logging controller state.
 * It consists of a entry key that must be on of the Log union types, and an
 * additional id and timestamp.
 */
export type LogEntry = {
    id: string;
    timestamp: number;
    log: Log;
};
/**
 * Logging controller state
 *
 * @property logs - An object of logs indexed by their ids
 */
export type LoggingControllerState = {
    logs: {
        [id: string]: LogEntry;
    };
};
declare const name = "LoggingController";
export type LoggingControllerGetStateAction = ControllerGetStateAction<typeof name, LoggingControllerState>;
export type LoggingControllerActions = LoggingControllerGetStateAction | LoggingControllerMethodActions;
export type LoggingControllerStateChangeEvent = ControllerStateChangeEvent<typeof name, LoggingControllerState>;
export type LoggingControllerEvents = LoggingControllerStateChangeEvent;
export type LoggingControllerMessenger = Messenger<typeof name, LoggingControllerActions, LoggingControllerEvents>;
/**
 * Controller that manages a list of logs for signature requests.
 */
export declare class LoggingController extends BaseController<typeof name, LoggingControllerState, LoggingControllerMessenger> {
    #private;
    /**
     * Creates a LoggingController instance.
     *
     * @param options - Constructor options
     * @param options.messenger - An instance of the Messenger
     * @param options.state - Initial state to set on this controller.
     * @param options.expiryTime - The number of milliseconds before we consider a log entry expired.
     */
    constructor({ messenger, state, expiryTime, }: {
        messenger: LoggingControllerMessenger;
        state?: Partial<LoggingControllerState>;
        expiryTime?: number;
    });
    /**
     * Add log to the state.
     *
     * @param log - Log to add to the controller
     */
    add(log: Log): void;
    /**
     * Removes all log entries.
     */
    clear(): void;
}
export {};
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