import type { AccountData, BlockInfo, SnapConfig, SnapRpcMethodRequest, Transaction, TxPayload } from '@enjin-io/metamask-enjin-types';
import type { InjectedExtension } from '@polkadot/extension-inject/types';
import type { SignerPayloadRaw } from '@polkadot/types/types/extrinsic';
import type { SignerPayloadJSON } from '@polkadot/types/types';
export interface MetamaskSnapApi {
    getAddress(): Promise<string>;
    getPublicKey(): Promise<string>;
    getBalances(): Promise<AccountData>;
    getLatestBlock(): Promise<BlockInfo>;
    getConfiguration(): Promise<SnapConfig>;
    setConfiguration(configuration: SnapConfig): Promise<void>;
    getAllTransactions(): Promise<Transaction[]>;
    signPayloadJSON(payload: SignerPayloadJSON): Promise<string>;
    signPayloadRaw(payload: SignerPayloadRaw): Promise<string>;
    send(signature: string, txPayload: TxPayload): Promise<Transaction>;
}
export interface InjectedMetamaskExtension extends InjectedExtension {
    getMetamaskSnapApi: () => Promise<MetamaskSnapApi>;
}
declare global {
    interface Window {
        ethereum: {
            isMetaMask: boolean;
            isPhantom: boolean;
            detected: EIP1193Provider[];
            providers: EIP1193Provider[];
            send: (request: SnapRpcMethodRequest | {
                method: string;
                params?: never[];
            }) => Promise<unknown>;
            on: (eventName: unknown, callback: unknown) => unknown;
            request: <T>(request: SnapRpcMethodRequest | {
                method: string;
                params?: any;
            }) => Promise<T>;
        };
    }
    interface WindowEventMap {
        'eip6963:announceProvider': CustomEvent<EIP6963AnnounceProviderEvent>;
    }
}
interface EIP6963ProviderInfo {
    walletId: string;
    uuid: string;
    name: string;
    icon: string;
}
export declare type EIP1193Provider = typeof window.ethereum;
export declare type EIP6963AnnounceProviderEvent = {
    detail: {
        info: EIP6963ProviderInfo;
        provider: EIP1193Provider;
    };
};
export {};