import type { Effect } from "effect";
import type { Address, Hash } from "viem";
import type { ApprovalCheckError, ApprovalError, ClientNotFoundError, ContractWriteError, InsufficientFundsError, UserRejectedError, WalletNotConnectedError, WrongNetworkError } from "../../core/index.js";
export type CheckAllowanceParams = {
    readonly chainId: number;
    readonly owner: Address;
    readonly spender: Address;
    readonly tokenAddress: Address;
};
export type ApproveParams = {
    readonly account: Address;
    readonly amount: bigint;
    readonly chainId: number;
    readonly spender: Address;
    readonly tokenAddress: Address;
};
export type EnsureAllowanceParams = {
    readonly account: Address;
    readonly chainId: number;
    readonly required: bigint;
    readonly spender: Address;
    readonly tokenAddress: Address;
    readonly approveAmount?: bigint | undefined;
    readonly zeroFirst?: boolean | undefined;
};
export type EnsureAllowanceResult = {
    readonly status: "already-sufficient";
    readonly currentAllowance: bigint;
} | {
    readonly status: "approved";
    readonly approveAmount: bigint;
    readonly currentAllowance: bigint;
    readonly hashes: readonly Hash[];
    readonly mode: "direct" | "zero-first";
};
export type Erc20AllowanceServiceShape = {
    readonly checkAllowance: (params: CheckAllowanceParams) => Effect.Effect<bigint, ApprovalCheckError | ClientNotFoundError>;
    readonly approve: (params: ApproveParams) => Effect.Effect<Hash, ApprovalError | ClientNotFoundError | ContractWriteError | InsufficientFundsError | UserRejectedError | WalletNotConnectedError | WrongNetworkError>;
    readonly ensureAllowance: (params: EnsureAllowanceParams) => Effect.Effect<EnsureAllowanceResult, ApprovalCheckError | ApprovalError | ClientNotFoundError | ContractWriteError | InsufficientFundsError | UserRejectedError | WalletNotConnectedError | WrongNetworkError>;
    readonly getMaxAmount: (decimals: number) => bigint;
};
//# sourceMappingURL=types.d.ts.map