/**
 * Auto-detection for wallet connections (EIP-1193 providers)
 * Supports MetaMask, Coinbase Wallet, and other injected providers
 */
declare global {
    interface Window {
        ethereum?: WalletProvider;
    }
}
export interface WalletProvider {
    request: (args: {
        method: string;
        params?: any[];
    }) => Promise<any>;
    on?: (event: string, handler: (...args: any[]) => void) => void;
    removeListener?: (event: string, handler: (...args: any[]) => void) => void;
    isMetaMask?: boolean;
    isCoinbaseWallet?: boolean;
}
export interface WalletInfo {
    address: string;
    chainId: number;
    walletType: string;
}
export type WalletEventHandler = (info: WalletInfo) => void;
export type WalletDisconnectHandler = () => void;
/**
 * WalletDetector - Auto-detects wallet connections and changes
 *
 * Simple, auditable implementation:
 * 1. Checks for window.ethereum
 * 2. Listens to standard EIP-1193 events
 * 3. Calls handlers when wallets connect/disconnect
 */
export declare class WalletDetector {
    private onConnect;
    private onDisconnect;
    private onChainChanged?;
    private provider;
    private currentAddress;
    private listeners;
    constructor(onConnect: WalletEventHandler, onDisconnect: WalletDisconnectHandler, onChainChanged?: ((chainId: number) => void) | undefined);
    /**
     * Start detecting wallet events
     */
    start(): Promise<void>;
    /**
     * Stop detecting and clean up listeners
     */
    stop(): void;
    /**
     * Check if wallet is already connected
     */
    private checkCurrentConnection;
    /**
     * Setup event listeners for wallet changes
     */
    private setupListeners;
    /**
     * Handle account changes (connect/disconnect/switch)
     */
    private handleAccountsChanged;
    /**
     * Handle chain changes
     */
    private handleChainChanged;
    /**
     * Handle wallet disconnection
     */
    private handleDisconnect;
    /**
     * Get current connected address
     */
    getCurrentAddress(): string | null;
}
/**
 * Check if wallet provider is available
 */
export declare function isWalletAvailable(): boolean;
/**
 * Get wallet provider if available
 */
export declare function getWalletProvider(): WalletProvider | null;
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