import Database from 'better-sqlite3';
export interface CardRow {
    id: string;
    card_id: string | null;
    name: string;
    mana_cost: number | null;
    type: string | null;
    card_set: string | null;
    set_name: string | null;
    player_class: string | null;
    rarity: string | null;
    attack: number | null;
    health: number | null;
    durability: number | null;
    armor: number | null;
    text: string | null;
    flavor: string | null;
    artist: string | null;
    collectible: number;
    elite: number;
    race: string | null;
    spell_school: string | null;
    keywords: string | null;
}
/**
 * Opens (or creates) a SQLite database and initializes the schema.
 *
 * @param dataDir - Custom data directory. Defaults to ~/.hearthstone-oracle/.
 *                  Pass ':memory:' for an in-memory database (tests).
 * @returns A better-sqlite3 Database instance with schema applied.
 */
export declare function getDatabase(dataDir?: string): Database.Database;
/**
 * Insert a single card into the cards table.
 */
export declare function insertCard(db: Database.Database, card: CardRow): void;
/**
 * Insert multiple cards in batched transactions (500 per batch).
 */
export declare function insertCards(db: Database.Database, cards: CardRow[]): void;
/**
 * Check if the cards table has any rows.
 */
export declare function hasExistingData(db: Database.Database): boolean;
/**
 * Get all table names in the database (excluding internal SQLite tables).
 */
export declare function getTableNames(db: Database.Database): string[];
//# sourceMappingURL=db.d.ts.map