import { Connection } from "@solana/web3.js";
import { Buffer } from "buffer";
import { RegistryState } from "../types.js";
/**
 * Parse a RegistryState account from raw buffer data
 *
 * @param data - Raw account data buffer (excluding 8-byte discriminator)
 * @returns Parsed RegistryState object
 * @throws Error if buffer is too small
 *
 * @example
 * ```typescript
 * const registryPda = getRegistryAddress();
 * const accountInfo = await connection.getAccountInfo(registryPda);
 * if (accountInfo) {
 *   // Skip 8-byte discriminator
 *   const registry = parseRegistryAccount(accountInfo.data.slice(8));
 *   console.log('Active weeks:', registry.activeWeeks);
 * }
 * ```
 */
export declare function parseRegistryAccount(data: Uint8Array | Buffer): RegistryState;
/**
 * Fetch and parse the registry account
 *
 * @param connection - Solana connection
 * @returns RegistryState or null if account doesn't exist
 *
 * @example
 * ```typescript
 * const registry = await fetchRegistry(connection);
 * if (registry) {
 *   console.log(`${registry.activeCount} active markets`);
 *   for (const weekNumber of registry.activeWeeks) {
 *     console.log(`  Week ${weekNumber}`);
 *   }
 * }
 * ```
 */
export declare function fetchRegistry(connection: Connection): Promise<RegistryState | null>;
/**
 * Get all active market week numbers
 *
 * @param connection - Solana connection
 * @returns Array of active week numbers, or empty array if registry doesn't exist
 *
 * @example
 * ```typescript
 * const activeWeeks = await getActiveMarketWeeks(connection);
 * for (const weekNumber of activeWeeks) {
 *   const marketPda = getMarketAddress(weekNumber);
 *   // Fetch market data...
 * }
 * ```
 */
export declare function getActiveMarketWeeks(connection: Connection): Promise<number[]>;
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