import { LogLevelValue } from './logLevel.js';
/**
 * @see https://www.toptal.com/designers/htmlarrows/symbols/
 * @see https://www.htmlsymbols.xyz/
 * @see https://www.fileformat.info/info/unicode/font/lucida_console/grid.htm (win32)
 */
export declare const ProgressBarSymbol: {
    NONE: string;
    WAITING: string;
    DONE: string;
    FILE_SCANNING: string;
    DAT_DOWNLOADING: string;
    DAT_PARSING: string;
    ROM_HASHING: string;
    ROM_HEADER_DETECTION: string;
    ROM_INDEXING: string;
    DAT_GROUPING_SIMILAR: string;
    DAT_MERGE_SPLIT: string;
    DAT_FILTERING: string;
    DAT_PREFERRING: string;
    CANDIDATE_GENERATING: string;
    CANDIDATE_EXTENSION_CORRECTION: string;
    CANDIDATE_HASHING: string;
    CANDIDATE_VALIDATING: string;
    CANDIDATE_COMBINING: string;
    TESTING: string;
    WRITING: string;
    RECYCLING: string;
    DELETING: string;
};
/**
 * ProgressBar represents a single progress bar (of potentially many) to present completion
 * information about an operation.
 */
export default abstract class ProgressBar {
    abstract reset(total: number): void;
    abstract setName(name: string): void;
    abstract setSymbol(symbol: string): void;
    abstract addWaitingMessage(waitingMessage: string): void;
    abstract removeWaitingMessage(waitingMessage: string): void;
    abstract incrementTotal(increment: number): void;
    abstract incrementProgress(): void;
    abstract incrementDone(message?: string): void;
    abstract update(current: number, message?: string): void;
    abstract done(finishedMessage?: string): void;
    /**
     * Call the `done()` method with a completion message that indicates how many items were
     * processed.
     */
    doneItems(count: number, noun: string, verb: string): void;
    abstract setLoggerPrefix(prefix: string): void;
    abstract log(logLevel: LogLevelValue, message: string): void;
    /**
     * Log a TRACE message.
     *
     * This should be used to log internal actions that most users shouldn't care about, but could be
     * helpful in bug reports.
     */
    logTrace(message: string): void;
    /**
     * Log a DEBUG message.
     *
     * This should be used to log actions that weren't taken (i.e. skipped writing a ROM because it
     * already exists, etc.).
     */
    logDebug(message: string): void;
    /**
     * Log an INFO message.
     *
     * This should be used to log actions that were taken (i.e. copying/moving ROMs, recycling files,
     * writing DATs, etc.).
     */
    logInfo(message: string): void;
    /**
     * Log a WARN message.
     */
    logWarn(message: string): void;
    /**
     * Log an ERROR message.
     */
    logError(message: string): void;
    abstract freeze(): void;
    abstract delete(): void;
}