svm: Token extensions

import { createSauceSvmClient } from "@eco-incorp/sauce/svm";

export declare function parseMintExtensions(mintData: Uint8Array): MintExtensions;

export declare function getEpochFee(cfg: TransferFeeConfig, epoch: bigint): TransferFee;

export declare function calcTransferFee(amount: bigint, cfg: TransferFeeConfig, epoch: bigint): bigint;

export declare function netTransferAmount(amount: bigint, cfg: TransferFeeConfig, epoch: bigint): bigint;

ONE_IN_BASIS_POINTS = 10000n

EXT_UNINITIALIZED = 0

EXT_TRANSFER_FEE_CONFIG = 1

EXT_CONFIDENTIAL_TRANSFER_MINT = 4

EXT_DEFAULT_ACCOUNT_STATE = 6

EXT_MEMO_TRANSFER = 8

EXT_NON_TRANSFERABLE = 9

EXT_PERMANENT_DELEGATE = 12

EXT_TRANSFER_HOOK = 14

export interface TransferFee {
    epoch: bigint;
    maximumFee: bigint;
    transferFeeBasisPoints: number;
}

export interface TransferFeeConfig {
    olderTransferFee: TransferFee;
    newerTransferFee: TransferFee;
}

export interface TransferHookInfo {
    programId: Address;
    extraAccountMetaListPda?: Address;
}

export interface MintExtensions {
    transferFee?: TransferFeeConfig;
    transferHook?: TransferHookInfo;
    blocking: string[];
    advisories: string[];
}