import Database from 'better-sqlite3';
import { Encounter } from '../../schema/encounter.js';
/**
 * EncounterRepository - Persistence layer for combat encounters
 *
 * PHASE 1: Position Persistence
 * - Positions are stored within the tokens JSON
 * - Terrain obstacles are stored in a separate terrain column
 * - Grid bounds define valid coordinate ranges
 *
 * Storage format:
 * - tokens: JSON array of TokenSchema (includes position, movementSpeed, size)
 * - terrain: JSON object with obstacles and difficultTerrain arrays
 * - grid_bounds: JSON object with minX, maxX, minY, maxY, minZ?, maxZ?
 */
export declare class EncounterRepository {
    private db;
    constructor(db: Database.Database);
    /**
     * Ensure the encounters table has all required columns
     * This handles migration for existing databases
     */
    private ensureSchema;
    create(encounter: Encounter): void;
    findByRegionId(regionId: string): Encounter[];
    /**
     * Save combat state to database
     * PHASE 1: Now persists positions, terrain, and grid bounds
     *
     * @param encounterId The encounter ID
     * @param state The CombatState object (includes participants with positions)
     */
    saveState(encounterId: string, state: any): void;
    /**
     * Load combat state from database
     * PHASE 1: Now restores positions, terrain, and grid bounds
     *
     * @param encounterId The encounter ID
     * @returns CombatState object with all spatial data, or null if not found
     */
    loadState(encounterId: string): any | null;
    findById(id: string): EncounterRow | undefined;
    delete(id: string): boolean;
}
interface EncounterRow {
    id: string;
    region_id: string | null;
    tokens: string;
    round: number;
    active_token_id: string | null;
    status: string;
    terrain: string | null;
    props: string | null;
    grid_bounds: string | null;
    created_at: string;
    updated_at: string;
}
export {};
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