import { type EventComponent, type EventEnvelope, type EventLevel, type OperationId } from './types.js';
export interface EventReadQuery {
    nodeId?: string;
    component?: EventComponent;
    operationId?: OperationId;
    sinceMs?: number;
    untilMs?: number;
    minimumLevel?: EventLevel;
    pattern?: string;
}
export interface CanonicalReadItem {
    kind: 'event';
    envelope: EventEnvelope;
    source: string;
    streamKey: string;
    generation: 2 | 1 | 0;
    byteOffset: number;
    effectiveTsMs: number;
    /** True when this item's source omitted content: the reader's fixed byte
     *  bound cut its start, or the same file also contained a corrupt/mismatched
     *  line. Constant across every item from one source file. */
    truncated: boolean;
}
export interface RawReadItem {
    kind: 'raw';
    component: 'daemon' | 'broker';
    source: string;
    content: string;
    effectiveTsMs: number;
    /** True when the reader's fixed byte bound cut this source's start. */
    truncated: boolean;
}
export type LogSnapshotItem = CanonicalReadItem | RawReadItem;
export interface LogSnapshotResult {
    items: LogSnapshotItem[];
    invalidCanonicalLines: number;
}
export type Tier1Event = Pick<EventEnvelope, 'v' | 'ts' | 'level' | 'event' | 'component' | 'operation_id' | 'node_id' | 'stream_id' | 'duration_ms' | 'outcome' | 'attempt' | 'error_class'>;
export declare function readLogSnapshot(query: EventReadQuery, includeRaw: boolean): LogSnapshotResult;
export declare function projectTier1Event(envelope: EventEnvelope): Tier1Event;