/**
 * Cross-Platform Notification Service
 *
 * Sends desktop notifications for PR events on Windows, macOS, and Linux.
 * Falls back to terminal bell and log file when desktop notifications unavailable.
 */
import type { INotificationService, INotification, INotificationResult, INotificationOptions, NotificationType } from '../../domain/interfaces/INotificationService';
/**
 * Cross-platform notification service implementation.
 */
export declare class NotificationService implements INotificationService {
    private readonly options;
    private readonly logPath;
    private readonly iconPaths;
    private desktopAvailable;
    private lastNotificationKey;
    private lastNotificationTime;
    constructor(options?: INotificationOptions);
    /**
     * Get the path to the Lisa icon for notifications.
     * Checks multiple locations and returns the first existing path.
     * Returns undefined if no icon is found.
     */
    getIconPath(): Promise<string | undefined>;
    /**
     * Get the current platform.
     */
    getPlatform(): 'windows' | 'macos' | 'linux' | 'unknown';
    /**
     * Check if desktop notifications are available.
     */
    isDesktopAvailable(): Promise<boolean>;
    /**
     * Send a notification.
     */
    notify(notification: INotification): Promise<INotificationResult>;
    /**
     * Send multiple notifications with debouncing.
     */
    notifyBatch(notifications: readonly INotification[]): Promise<readonly INotificationResult[]>;
    /**
     * Send a desktop notification.
     */
    private sendDesktopNotification;
    /**
     * Escape string for XML attribute context.
     */
    private escapeForXmlAttribute;
    /**
     * Send Windows toast notification via PowerShell.
     * Uses -EncodedCommand to avoid shell escaping issues with quotes.
     * If URL is provided, clicking the notification opens the URL.
     * Includes Lisa icon if available.
     */
    private sendWindowsNotification;
    /**
     * Send macOS notification via osascript.
     * Uses proper AppleScript escaping for single quotes.
     * Note: macOS terminal-notifier could be used for icon support,
     * but osascript is available by default on all Macs.
     */
    private sendMacOSNotification;
    /**
     * Send Linux notification via notify-send.
     * Includes Lisa icon if available.
     */
    private sendLinuxNotification;
    /**
     * Map notification priority to Linux urgency level.
     */
    private mapPriorityToUrgency;
    /**
     * Send terminal bell.
     */
    private sendTerminalBell;
    /**
     * Write notification to log file.
     */
    private writeToLog;
    /**
     * Escape string for shell commands (double-quoted contexts).
     * Platform-specific escaping is handled in each notification method.
     */
    private escapeForShell;
}
/**
 * Create a notification from a state change.
 */
export declare function createNotificationFromStateChange(type: NotificationType, description: string, prNumber: number, repo: string, prTitle?: string): INotification;
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