import { EventDispatcher } from "ste-events";
export declare enum LogItemLevel {
    debug = 0,
    verbose = 1,
    message = 2,
    error = 3,
    important = 4,
    operationStarted = 10,
    operationEnded = 11
}
export declare class LogItem {
    level: LogItemLevel;
    message: string;
    created: Date;
    operId?: number;
    category?: string;
    context?: string;
    static alertFunction: ((message: string) => void) | undefined;
    constructor(message: string, level: LogItemLevel, context?: string, category?: string);
}
export default class Log {
    static _suppressedLogs: {
        [id: string]: boolean;
    };
    static _log: LogItem[];
    static _onItemAdded: EventDispatcher<Log, LogItem>;
    static get items(): LogItem[];
    static get onItemAdded(): import("ste-events").IEvent<Log, LogItem>;
    static message(message: string, context?: string, category?: string): void;
    static important(message: string, context?: string, category?: string): void;
    static verbose(message: string, context?: string, category?: string): void;
    static error(message: string, context?: string, category?: string): void;
    static unexpectedUndefined(token?: string): void;
    static unexpectedIsDisposed(token?: string): void;
    static throwIsDisposed(token?: string): void;
    static throwUnexpectedUndefined(token?: string): void;
    static unexpectedNull(token?: string): void;
    static unexpectedContentState(token?: string): void;
    static unexpectedState(token?: string): void;
    static unexpectedArguments(token?: string): void;
    static log(message: string | object, level: LogItemLevel, context?: string, category?: string): number;
    static debug(message: string, context?: string): void;
    static assertIsInt(number: number, message?: string): void;
    static getStack(): string;
    static assert(condition: boolean, message?: string, context?: string): asserts condition;
    static assertDefined(obj: any, message?: string): boolean;
    static fail(message: string, context?: string): void;
    static unsupportedToken(token: string, context?: string): void;
    static unexpectedError(errorMessage: string, context?: string): void;
    static debugAlert(message: string, context?: string): void;
}