import { type BaselineIdentityMetadata, type Signal } from '@opensip-cli/core';
import { type DataStore } from './data-store.js';
/** One baseline entry to persist: its opaque fingerprint + the full Signal payload. */
export interface BaselineEntry {
    readonly fingerprint: string;
    readonly payload: Signal;
}
/** One loaded baseline row: the fingerprint + its stored payload (null if absent). */
export interface BaselineRow {
    readonly fingerprint: string;
    readonly payload: Signal | null;
}
/**
 * The generic host-owned baseline repository (ADR-0036). One repo over the
 * shared `tool_baseline_entries` / `tool_baseline_meta` tables, scoped by the
 * `tool` column so every tool shares the table but never sees another tool's
 * rows. Replaces the per-tool `GraphBaselineRepo` / `FitBaselineRepo`.
 *
 * `save` is an atomic per-tool replace (delete-all + bulk insert + meta upsert in
 * one transaction), mirroring graph's atomic-rename-of-tmp-file semantic. The
 * `payload` column carries the full Signal so the diff can surface full-object
 * `resolved` findings and re-render SARIF.
 */
export declare class BaselineRepo {
    private readonly datastore;
    constructor(datastore: DataStore);
    /**
     * Replace this tool's entire baseline in one transaction. Entries are deduped
     * by fingerprint (last wins) and sorted by fingerprint for deterministic
     * ordering. The meta row is upserted as the existence marker — an empty
     * baseline is a valid saved state ("saved, no findings" ≠ "never saved").
     */
    save(tool: string, entries: readonly BaselineEntry[], identity: BaselineIdentityMetadata): void;
    /** Load this tool's baseline rows (fingerprint + payload). Empty when none saved. */
    load(tool: string): readonly BaselineRow[];
    /** True iff this tool has saved a baseline (independent of whether it was empty). */
    exists(tool: string): boolean;
    /** When this tool's baseline was captured (ms epoch), or undefined when none exists. */
    capturedAt(tool: string): number | undefined;
    /**
     * Load persisted baseline identity metadata for compare/export (ADR-0075).
     * Returns `undefined` when no meta row exists; partial/null columns mean legacy.
     */
    loadMeta(tool: string): BaselineIdentityMetadata | undefined;
    /**
     * Delete this tool's baseline — entries + the meta existence marker, one
     * transaction (`tools data purge`, ADR-0042). After a clear, `exists()` is
     * false (vs. `save(tool, [])`, which leaves an EMPTY-but-saved baseline).
     */
    clear(tool: string): {
        readonly entries: number;
        readonly meta: boolean;
    };
}
export type { BaselineIdentityMetadata } from '@opensip-cli/core';
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