import type { CockpitState } from '@generacy-ai/cockpit';
import type { SnapshotMap } from './snapshot.js';
export type CockpitEventKind = 'issue' | 'pr';
export type CockpitEventDiscriminator = 'label-change' | 'issue-closed' | 'pr-merged' | 'pr-closed' | 'pr-checks';
export interface CockpitEvent {
    type: 'issue-transition';
    ts: string;
    repo: string;
    kind: CockpitEventKind;
    number: number;
    from: CockpitState | null;
    to: CockpitState | null;
    sourceLabel: string | null;
    url: string;
    event: CockpitEventDiscriminator;
    labels: string[];
    initial?: true;
    checks?: 'green' | 'red' | 'pending';
}
/**
 * Compute the set of transitions between two SnapshotMaps. Events for the same
 * key are emitted in the order: label-change → lifecycle → pr-checks.
 *
 * First-poll (prev empty): emits one line per actionable snapshot in `curr`,
 * each marked `initial: true`. Non-actionable snapshots stay silent.
 *
 * Mid-stream first-sight (#935): on polls 2..N, a key present in `curr` but
 * absent from `prev` (e.g. `cockpit scope add` appended a new ref to the epic
 * body) emits one `label-change` event with `initial: true` if actionable —
 * matching `computeInitialSweep`'s per-key shape. Non-actionable snapshots
 * stay silent. Removals stay silent (mirrors FR-002 "removal emits nothing").
 */
export declare function computeTransitions(prev: SnapshotMap, curr: SnapshotMap, now?: () => string): CockpitEvent[];
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