import { type ChainConfig } from '../config/chains';
/**
 * Interface representing Solana transaction response.
 * Similar to EVM transaction response but adapted for Solana's transaction structure.
 */
export interface SolanaTransactionResponse {
    /** The transaction signature/hash */
    hash: string;
    /** The sender's public key address */
    from: string;
    /** The recipient's public key address */
    to: string;
    /** The block number (optional, not always available on Solana) */
    blockNumber?: number;
}
/**
 * Interface representing Solana SPL token metadata.
 * Extends the basic token interface with Solana-specific fields.
 */
export interface SolanaToken {
    /** The token's mint address */
    address: string;
    /** The human-readable name of the token */
    name: string;
    /** The token's symbol/ticker */
    symbol: string;
    /** The number of decimal places for the token */
    decimals: number;
    /** The total supply of the token (optional) */
    totalSupply?: string;
}
/**
 * Service for interacting with Solana blockchain.
 * Provides methods for SOL balance checking, SPL token operations, and transaction sending.
 */
export declare class SolanaChainService {
    private connection;
    private keypair;
    /**
     * Creates a new SolanaChainService instance for the specified Solana network.
     * @param privateKey - The private key to use for signing transactions (hex string)
     * @param chainConfig - The chain configuration to use
     * @throws Error if the chain is not a Solana chain
     */
    constructor(privateKey: string, chainConfig: ChainConfig);
    /**
     * Gets the native SOL balance for the wallet.
     * @returns Promise resolving to the balance as a bigint in lamports
     * @throws Error if the balance query fails
     */
    getNativeBalance(): Promise<bigint>;
    /**
     * Sends native SOL to another address.
     * @param to - The recipient's public key address
     * @param amount - The amount of SOL to send as a string (e.g., "1.5")
     * @returns Promise resolving to the transaction response with signature and details
     * @throws Error if the transaction fails or recipient address is invalid
     */
    sendTransaction(to: string, amount: string): Promise<SolanaTransactionResponse>;
    /**
     * Gets the balance of a specific SPL token for the wallet.
     * @param tokenAddress - The token's mint address
     * @returns Promise resolving to the token balance as a bigint
     * @throws Error if the balance query fails (returns 0 if token account doesn't exist)
     */
    getTokenBalance(tokenAddress: string): Promise<bigint>;
    /**
     * Gets metadata information about an SPL token.
     * @param tokenAddress - The token's mint address
     * @returns Promise resolving to token metadata including supply information
     * @throws Error if the token info query fails
     */
    getTokenInfo(tokenAddress: string): Promise<SolanaToken>;
    /**
     * Sends SPL tokens to another address.
     * @param tokenAddress - The token's mint address to send
     * @param to - The recipient's public key address
     * @param amount - The amount of tokens to send as a string
     * @returns Promise resolving to the transaction response with signature and details
     * @throws Error if the transaction fails, insufficient balance, or addresses are invalid
     */
    sendToken(tokenAddress: string, to: string, amount: string): Promise<SolanaTransactionResponse>;
    /**
     * Gets the public key address of the wallet.
     * @returns The public key address as a string
     */
    getAddress(): string;
    /**
     * Estimates the transaction fee for a typical transaction.
     * @returns Promise resolving to the estimated fee as a bigint in lamports
     * @throws Error if the fee estimation fails
     */
    estimateTransactionFee(): Promise<bigint>;
}