/**
 * PM Transcripts SQLite FTS5 Store
 *
 * SEARCH-018: SQLite wrapper with FTS5 full-text search operations
 *
 * Storage location: ~/.local/share/australian-history-mcp/pm-transcripts.db
 */
import type { IndexStats, IndexSearchResult, IndexSearchOptions, StoredTranscript } from './types.js';
/**
 * SQLite FTS5 store for PM Transcripts
 */
export declare class PMTranscriptsStore {
    private db;
    /**
     * Get the database file path
     */
    static getDbPath(): string;
    /**
     * Check if the database exists
     */
    static exists(): boolean;
    /**
     * Open the database connection
     */
    open(): void;
    /**
     * Close the database connection
     */
    close(): void;
    /**
     * Initialize the database schema
     */
    private initSchema;
    /**
     * Drop all tables (for rebuild)
     */
    dropAllTables(): void;
    /**
     * Get metadata value
     */
    getMetadata(key: string): string | null;
    /**
     * Set metadata value
     */
    setMetadata(key: string, value: string): void;
    /**
     * Calculate content hash for deduplication
     */
    static contentHash(content: string): string;
    /**
     * Check if a transcript is already indexed with the same content
     */
    isIndexed(transcriptId: number, contentHash: string): boolean;
    /**
     * Get highest indexed transcript ID
     */
    getMaxTranscriptId(): number;
    /**
     * Index a transcript
     */
    indexTranscript(transcript: StoredTranscript): void;
    /**
     * Batch index multiple transcripts
     */
    indexTranscriptBatch(transcripts: StoredTranscript[]): void;
    /**
     * Search transcripts using FTS5
     */
    search(options: IndexSearchOptions): {
        results: IndexSearchResult[];
        total: number;
    };
    /**
     * Get index statistics
     */
    getStats(): IndexStats;
    /**
     * Optimize the FTS5 index
     */
    optimize(): void;
    /**
     * List unique Prime Ministers
     */
    listPrimeMinisters(): string[];
    /**
     * List unique release types
     */
    listReleaseTypes(): string[];
}
export declare const pmTranscriptsStore: PMTranscriptsStore;
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