/**
 * Pure formatting functions for TUI delegation notifications.
 *
 * Converts delegation completion data into compact notification strings
 * for thin-line injection, toast display, and full system reminder blocks.
 * No side effects, no SDK calls, no state — pure functions only.
 */
import type { DelegationNotificationType } from "./types.js";
export interface NotificationFormatOptions {
    delegationId: string;
    agent: string;
    status: "completed" | "error" | "timeout" | "cancelled" | "running";
    elapsedMs: number;
    toolCount?: number;
    summaryPreview?: string;
    /** Path to working directory or result file */
    path?: string;
    /** List of modified/created files detected by completion detector */
    fileChanges?: string[];
    /** ISO 8601 completion timestamp */
    completedAt?: string;
}
/**
 * Format a full system reminder block for session prompt delivery.
 * Wraps output in <system_reminder> tags with all available fields.
 */
export declare function formatDelegationNotification(opts: NotificationFormatOptions): string;
/**
 * Format a compact thin-line string for TUI prompt append.
 * Omits summary preview to keep the line short and scannable.
 */
export declare function formatCompactLine(opts: NotificationFormatOptions): string;
/**
 * Format a toast-style notification line.
 * Minimal format suitable for transient UI toast displays.
 */
export declare function formatToastLine(opts: NotificationFormatOptions): string;
/**
 * Format a duration in milliseconds into a human-readable string.
 * <1000ms → "Xms", <60s → "X.Xs", <60m → "Xm Ys", >=60m → "Xh Ym"
 */
export declare function formatDuration(ms: number): string;
export interface FailureNotificationOptions {
    delegationId: string;
    agent: string;
    failureLevel: number;
    elapsedSeconds: number;
    actionCount: number;
    isExecutedRunning: boolean;
}
/**
 * Format a failure checkpoint notification line.
 *
 * Distinguishes between sessions that ran tools but stalled
 * (executed-running-fail) and sessions that never executed (fail-from-threshold).
 */
export declare function formatFailureNotification(opts: FailureNotificationOptions): string;
/**
 * Format a final failure notification (level 4, 300s).
 */
export declare function formatFinalFailure(opts: FailureNotificationOptions): string;
/**
 * Format an urgent failure notification that requires the orchestrator to respond.
 *
 * For early failures (30s/60s/120s checkpoints) where no actions were detected,
 * this creates a prompt that the orchestrator MUST respond to with a decision:
 * resume, change-agent, steer, or cancel.
 */
export declare function formatUrgentFailureNotification(opts: FailureNotificationOptions): string;
/**
 * Map a DelegationNotificationType to the corresponding status string
 * used by the formatter functions.
 */
export declare function typeToStatus(type: DelegationNotificationType): "completed" | "error" | "timeout" | "cancelled" | "running";
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