import type { CompactLifecycleStage } from './compact-lifecycle-store.js';
export type CompactDisplayKind = 'none' | 'queued' | 'preparing' | 'compacting' | 'verifying' | 'completed' | 'failed' | 'stalled' | 'invalid' | 'armed';
export interface CompactStatuslineState {
    readonly kind: CompactDisplayKind;
    readonly filledCells: 0 | 2 | 4 | 6 | 8;
    readonly triggerRatio?: number;
    readonly afterRatio?: number;
    readonly redLine?: boolean;
    readonly failedAt?: CompactLifecycleStage;
    readonly detail?: string;
}
/**
 * Concrete first-version stale timeout. Adjustable after real timing
 * evidence from the auto-compact orchestrator (it currently writes a
 * heartbeat on every state transition; 120 s is the longest realistic
 * gap between a heartbeat and an actual stall).
 */
export declare const DEFAULT_STALE_AFTER_MS = 120000;
/**
 * 10-second completed-window expiry. The brief (Task 6 design requirement)
 * calls out: once a compact lifecycle reaches `completed`, the primary
 * statusline should surface the success indicator for at most 10 seconds,
 * then fall back to the C1 baseline so the consumer (the IDE) does not
 * keep a green ✓ pinned on the status bar indefinitely. The narrow window
 * is sufficient for the human to see "we just compacted" and long enough
 * to not flap on subsequent reads. Adjustable after real timing feedback.
 */
export declare const COMPLETED_EXPIRY_MS = 10000;
/**
 * How recently the last history row must itself have been written for the
 * legacy path to report it as "just compacted". Measured against the row's own
 * `ts` — the fact — rather than the file's mtime, which is only a proxy for it
 * and is also moved by rows that record no compaction (repair R9).
 */
export declare const LEGACY_JUST_COMPACTED_WINDOW_MS = 30000;
export declare const STAGE_CELL_COMPACTING = 4;
export declare const STAGE_CELL_VERIFYING = 6;
export declare const STAGE_CELL_COMPLETED = 8;
export declare const CELL_BY_STAGE: ReadonlyMap<CompactLifecycleStage, 0 | 2 | 4 | 6 | 8>;
export declare const NO_AFTER_RATIO_HINT = "after-ratio not recorded";
export declare function renderBar(filledCells: 0 | 2 | 4 | 6 | 8): string;
export declare function renderLegacyBar(filledCells: 0 | 2 | 4 | 6 | 8): string;