/**
 * @module staking
 * @description Agent staking lifecycle — init, deposit, request unstake,
 * complete unstake, and fetch stake accounts.
 *
 * @category Modules
 * @since v0.7.0
 * @packageDocumentation
 */
import { type PublicKey, type TransactionSignature } from "@solana/web3.js";
import { BN } from "@coral-xyz/anchor";
import { BaseModule } from "./base";
import type { AgentStakeData } from "../types";
/**
 * @name StakingModule
 * @description Manages agent stake accounts — init, deposit, unstake, and fetch.
 *
 * @category Modules
 * @since v0.7.0
 * @extends BaseModule
 */
export declare class StakingModule extends BaseModule {
    deriveStake(agentPda: PublicKey): readonly [PublicKey, number];
    initStake(agentWallet: PublicKey, initialDeposit: BN | number | bigint): Promise<TransactionSignature>;
    deposit(agentWallet: PublicKey, amount: BN | number | bigint): Promise<TransactionSignature>;
    requestUnstake(agentWallet: PublicKey, amount: BN | number | bigint): Promise<TransactionSignature>;
    completeUnstake(agentWallet: PublicKey): Promise<TransactionSignature>;
    /**
     * Close a legacy stake account after its agent PDA has already been closed.
     *
     * Normal v1.0.0 agent closure returns stake automatically via `agent.close()`.
     * This helper exists for v0.18-era accounts where the agent was closed while
     * the permanent collateral floor stayed in the StakePDA.
     */
    closeStake(agentWallet: PublicKey): Promise<TransactionSignature>;
    fetch(agentPda: PublicKey): Promise<AgentStakeData>;
    fetchNullable(agentPda: PublicKey): Promise<AgentStakeData | null>;
    fetchByPda(stakePda: PublicKey): Promise<AgentStakeData>;
    /**
     * Compute the maximum amount that can be requested via `requestUnstake`
     * without breaching the on-chain {@link MIN_AGENT_STAKE_LAMPORTS} floor.
     *
     * Returns 0 if the agent is already at (or below) the floor.
     *
     * @since v0.11.0
     */
    getMaxUnstakeLamports(stake: AgentStakeData): bigint;
    /**
     * Returns the lamport delta the agent must `deposit` to satisfy the
     * per-escrow stake-coverage requirement for `escrowLamports`. 0 if already
     * sufficient. Useful for a UI "top up to open this escrow" button.
     *
     * Mirrors the on-chain check in `create_escrow_v2` (v0.11 H-1).
     *
     * @since v0.11.0
     */
    getRequiredTopUp(stake: AgentStakeData, escrowLamports: bigint): bigint;
}
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