/**
 * Index Recovery and Validation
 *
 * Ensures indexes are valid and consistent after crashes or data corruption.
 * Automatically rebuilds stale or missing indexes on startup.
 */
import type { Collection } from './collection.js';
export interface IndexRecoveryReport {
    collectionName: string;
    indexesChecked: number;
    indexesRebuilt: number;
    duration: number;
    errors: string[];
}
/**
 * Validate and repair indexes across a collection.
 */
export declare function validateAndRepairIndexes(collection: Collection<any>): Promise<IndexRecoveryReport>;
/**
 * Batch validate multiple collections.
 */
export declare function validateMultipleCollections(collections: Collection<any>[]): Promise<IndexRecoveryReport[]>;
/**
 * Index consistency checker for detecting corruption.
 */
export declare class IndexConsistencyChecker {
    /**
     * Check if index entries match collection data.
     */
    static checkEntryCount(collection: Collection<any>, indexName: string, expectedCount: number): Promise<boolean>;
    /**
     * Detect orphaned index entries (entries for deleted records).
     */
    static detectOrphanedEntries(collection: Collection<any>): Promise<string[]>;
    /**
     * Detect missing index entries (records not in index).
     */
    static detectMissingEntries(collection: Collection<any>): Promise<string[]>;
}
/**
 * Index repair strategies for different corruption scenarios.
 */
export declare class IndexRepairStrategy {
    /**
     * Full rebuild: Delete and recreate all indexes from scratch.
     */
    static fullRebuild(collection: Collection<any>): Promise<void>;
    /**
     * Partial repair: Only rebuild stale indexes.
     */
    static partialRepair(collection: Collection<any>): Promise<void>;
    /**
     * Incremental repair: Fix corruption by replaying operations.
     */
    static incrementalRepair(collection: Collection<any>): Promise<void>;
}
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