synapsecns/sdk | Build 2032637210 | src/bridge/bridge.ts | Coveralls

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import {toLower} from "lodash-es";

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import {ChainId}  from "@chainid";

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import {Networks} from "@networks";

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import {executePopulatedTransaction, rejectPromise} from "@common/utils";

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import {SynapseContracts} from "@common/synapse_contracts";

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import * as SynapseEntities from "@entities";

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import {

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    type ID,

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    SwapType,

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    rpcProviderForChain,

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    terraRpcProvider,

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    tokenSwitch,

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    TerraSignerWrapper,

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    validateTerraAddress

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} from "@internal/index";

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import type {

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    BridgeConfigV3Contract,

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    GenericZapBridgeContract,

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    L1BridgeZapContract,

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    SynapseBridgeContract

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} from "@contracts";

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import {Tokens}    from "@tokens";

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import {TokenSwap} from "@tokenswap";

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import {

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    type Token,

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    instanceOfToken

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} from "@token";

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import type {GenericSigner, GenericTxnRequest, GenericTxnResponse, NumberMap} from "@common/types";

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import {GasUtils}                   from "./gasutils";

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import {

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    BridgeUtils,

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    CanBridgeError

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} from "./bridgeutils";

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import {ERC20, MAX_APPROVAL_AMOUNT} from "./erc20";

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import {Zero}                    from "@ethersproject/constants";

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import {isAddress}   from "@ethersproject/address";

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import {BigNumber, BigNumberish} from "@ethersproject/bignumber";

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import {

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    Signer as EthersSigner

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} from "@ethersproject/abstract-signer";

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import type {Provider} from "@ethersproject/providers";

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import type {ContractTransaction, PopulatedTransaction} from "@ethersproject/contracts";

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import {

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    MsgExecuteContract,

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    LCDClient,

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    Wallet as TerraWallet,

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    BlockTxBroadcastResult

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} from "@terra-money/terra.js";

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import bech32 from "bech32";

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const TEN = BigNumber.from(10);

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/**

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 * Bridge provides a wrapper around common Synapse Bridge interactions, such as output estimation, checking supported swaps/bridges,

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 * and most importantly, executing Bridge transactions.

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*/

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export namespace Bridge {

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    export type CanBridgeResult = {

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        canBridge:     boolean;

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        reasonUnable?: string;

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        amount?:       BigNumber;

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    type NeedsTokenApproveResult = {

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        needsApproval:     boolean;

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        currentAllowance?: BigNumber;

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    export type BridgeOutputEstimate = {

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        amountToReceive: BigNumber,

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        bridgeFee:       BigNumber,

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/**

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     * @param {Token} tokenFrom {@link Token} user will send to the bridge on the source chain

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     * @param {Token} tokenTo {@link Token} user will receive from the bridge on the destination chain

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     * @param {number} chainIdTo Chain ID of the destination chain

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     * @param {BigNumber} amountFrom not necessarily used by this interface, and overriden in BridgeParamsWithAmounts.

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*/

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    export interface BridgeParams {

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        tokenFrom:   Token,

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        tokenTo:     Token

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        chainIdTo:   number,

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        amountFrom?: BigNumber,

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/**

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     * @param {BigNumber} amountFrom Amount of tokenFrom (denoted in wei) that the user will send to the bridge on the source chain.

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     * @param {BigNumber} amountTo Amount of tokenTo (denoted in wei) that the user will receive from the bridge on the destination chain.

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     * @param {string} addressTo Optional, user can provide an address other than the one retrieved from signer to receive tokens

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     * on the destination chain.

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*/

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    export interface BridgeTransactionParams extends BridgeParams {

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        amountFrom: BigNumber;

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        amountTo:   BigNumber;

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        addressTo?: string;

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    type EasyArgsCheck = {

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        isEasy:   boolean;

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        castArgs: BridgeUtils.BridgeTxParams;

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        txn?:     Promise<PopulatedTransaction>;

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    type BridgeTokenArgs = {

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        fromChainTokens: Token[];

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        toChainTokens:   Token[];

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        tokenFrom:       Token;

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        tokenTo:         Token;

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        tokenIndexFrom:  number;

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        tokenIndexTo:    number;

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    interface CheckCanBridgeParams {

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        address?: string;

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        signer?:  EthersSigner;

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        token:    Token;

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        amount:   BigNumberish;

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    interface CanBridgeParams extends CheckCanBridgeParams {

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        address: string;

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/**

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     * SynapseBridge is a wrapper around any Synapse Bridge contract which exists on chains supported by the Synapse Protocol.

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*/

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    export class SynapseBridge {

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        protected network: Networks.Network;

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        protected chainId: number;

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        protected _provider: Provider | LCDClient;

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        private readonly bridgeAddress: string;

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        private readonly bridgeInstance:           SynapseBridgeContract;

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        private readonly networkZapBridgeInstance: GenericZapBridgeContract;

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        private readonly isTerra:      boolean;

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        private readonly isL2Zap:      boolean;

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        private readonly isL2ETHChain: boolean;

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        private readonly zapBridgeAddress: string;

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        private readonly bridgeConfigInstance: BridgeConfigV3Contract = SynapseEntities.BridgeConfigV3ContractInstance();

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        private readonly zapBridgeInstance: L1BridgeZapContract = SynapseEntities.L1BridgeZapContractInstance({

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            chainId: ChainId.ETH,

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            signerOrProvider: rpcProviderForChain(ChainId.ETH),

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});

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        readonly requiredConfirmations: number;

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        constructor(args: {

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            network: Networks.Network | number,

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            provider?: Provider

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        }) {

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            let {network, provider} = args;

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            this.network = network instanceof Networks.Network ? network : Networks.fromChainId(network);

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            this.chainId = this.network.chainId;

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            this.requiredConfirmations = getRequiredConfirmationsForBridge(this.network);

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            this.isTerra = this.chainId === ChainId.TERRA;

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            this.isL2Zap = this.network.zapIsL2BridgeZap;

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            this.isL2ETHChain = BridgeUtils.isL2ETHChain(this.chainId);

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            this._provider = provider ?? (this.isTerra

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                ? terraRpcProvider(this.chainId)

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                : rpcProviderForChain(this.chainId)

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);

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            const contractAddrs = SynapseContracts.contractsForChainId(this.chainId);

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            this.bridgeAddress    = contractAddrs.bridgeAddress;

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            this.zapBridgeAddress = contractAddrs.bridgeZapAddress;

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            if (!this.isTerra) {

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                const factoryParams = {chainId: this.chainId, signerOrProvider: (this._provider as Provider)};

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            this.bridgeInstance = SynapseEntities.SynapseBridgeContractInstance(factoryParams);

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            if (this.zapBridgeAddress && this.zapBridgeAddress !== "") {

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                this.networkZapBridgeInstance = SynapseEntities.GenericZapBridgeContractInstance(factoryParams);

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        private get provider(): Provider {

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            return this._provider as Provider

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        private get terraProvider(): LCDClient {

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            return this._provider as LCDClient

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        bridgeVersion(): Promise<BigNumber> {

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            if (this.isTerra) {

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                return Promise.resolve(BigNumber.from(6))

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            return this.bridgeInstance.bridgeVersion()

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        WETH_ADDRESS(): Promise<string> {

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            if (this.isTerra) {

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                return Promise.resolve("0x0000000000000000000000000000000000000000")

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            return this.bridgeInstance.WETH_ADDRESS()

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/**

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         * Returns whether a swap/bridge from this Bridge's chain to another chain between two tokens

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         * is supported.

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         * @param {Token} args.tokenFrom {@link Token} user will send to the bridge

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         * @param {Token} args.tokenTo {@link Token} user will receive from the bridge on the destination chain

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         * @param {number} args.chainIdTo Chain ID of the destination chain

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         * @return boolean value denoting whether the input params constitute a valid swap/bridge, along with a

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         * string value denoting the reason for an unsupported swap, if applicable.

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*/

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        swapSupported(args: {

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            tokenFrom: Token,

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            tokenTo:   Token

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            chainIdTo: number,

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        }): [boolean, string] {

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            const {swapSupported, reasonNotSupported} = bridgeSwapSupported({...args, chainIdFrom: this.chainId});

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            return [swapSupported, reasonNotSupported?.reason || ""]

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/**

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         * Returns the estimated output of a given token on the destination chain were a user to send

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         * some amount of another given token on the source chain.

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         * @param {BridgeParams} args Parameters for the output estimation.

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         * @return {Promise<BridgeOutputEstimate>} Object containing the estimated output of args.tokenTo, as well

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         * as the estimated fee to be taken by the bridge. Note that the estimated output already accounts for the

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         * bridge fee, so the bridge fee is entirely for user-facing purposes. Do not use it for calculations.

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*/

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        async estimateBridgeTokenOutput(args: BridgeParams): Promise<BridgeOutputEstimate> {

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            return this.checkSwapSupported(args)

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                .then(() => this.calculateBridgeRate(args))

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                .catch(rejectPromise)

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/**

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         * Returns a populated transaction for initiating a token bridge between this Bridge (the source chain) and the bridge contract on the destination chain.

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         * Note that this function **does not** send a signed transaction.

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         * @param {BridgeTransactionParams} args Parameters for the bridge transaction

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         * @return {Promise<PopulatedTransaction>} Populated transaction instance which can be sent via ones choice

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         * of web3/ethers/etc.

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*/

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        async buildBridgeTokenTransaction(args: BridgeTransactionParams): Promise<PopulatedTransaction | MsgExecuteContract> {

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            const

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                {addressTo} = args,

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                tokenArgs = this.makeBridgeTokenArgs(args),

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                {tokenFrom, tokenTo} = tokenArgs;

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            if ((!addressTo) || addressTo === "") {

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                return rejectPromise(

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                    new CanBridgeError("BridgeTransactionParams.addressTo cannot be empty string or undefined")

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            if (args.chainIdTo === ChainId.TERRA && !validateTerraAddress(args.addressTo)) {

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                return rejectPromise(

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                    new CanBridgeError(`${args.addressTo} passed as BridgeTransactionParams.addressTo is not a valid Terra address`)

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            } else if (args.chainIdTo !== ChainId.TERRA && !isAddress(args.addressTo)) {

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                return rejectPromise(

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                    new CanBridgeError(`${args.addressTo} passed as BridgeTransactionParams.addressTo is not a valid EVM address`)

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            args = {...args, tokenFrom, tokenTo};

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            let newTxn: Promise<PopulatedTransaction>;

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            if (args.tokenFrom.isEqual(Tokens.UST)) {

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                if (this.isTerra) {

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                    return this.buildTerraBridgeTxn(args)

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                const redeemArgs: [BigNumberish, string, BigNumberish] = [

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                    args.chainIdTo,

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                    Tokens.UST.address(this.chainId),

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                    args.amountFrom

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];

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                if (args.chainIdTo === ChainId.TERRA) {

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                    newTxn = this.bridgeInstance

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                        .populateTransaction

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                        .redeemV2(

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                            bech32.decode(args.addressTo).words,

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                            ...redeemArgs

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);

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                } else {

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                    newTxn = this.bridgeInstance

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                        .populateTransaction

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                        .redeem(

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                            args.addressTo,

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                            ...redeemArgs

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);

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            } else {

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                newTxn = this.chainId === ChainId.ETH

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                ? this.buildETHMainnetBridgeTxn(args, tokenArgs)

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                : this.buildL2BridgeTxn(args, tokenArgs);

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            return newTxn

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                .then(txn =>

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                    GasUtils.populateGasParams(this.chainId, txn, "bridge")

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/**

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         * Starts the Bridge process between this Bridge (the source chain) and the bridge contract on the destination chain.

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         * Note that this function **does** send a signed transaction.

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         * @param {BridgeTransactionParams} args Parameters for the bridge transaction.

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         * @param {EthersSigner} signer Some instance which implements the Ethersjs {@link EthersSigner} interface.

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         * @param {boolean} callStatic (Optional, default: false) if true, uses provider.callStatic instead of actually sending the signed transaction.

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         * @return {Promise<ContractTransaction>}

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*/

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        async executeBridgeTokenTransaction(

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            args:       BridgeTransactionParams,

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            signer:     EthersSigner | TerraWallet | GenericSigner,

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            callStatic: boolean=false

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        ): Promise<ContractTransaction | BlockTxBroadcastResult> {

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            try {

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                await this.checkSwapSupported(args);

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                /* c8 ignore next 2 */

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                return rejectPromise(e);

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            const {tokenFrom, amountFrom, addressTo} = args;

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            let txSigner: GenericSigner;

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            let signerAddress: string;

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            if (signer instanceof TerraWallet) {

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                txSigner = new TerraSignerWrapper(signer);

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            } else {

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                txSigner = signer;

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            signerAddress = await txSigner.getAddress();

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            let checkArgs = {token: tokenFrom, amount: amountFrom, address: toLower(signerAddress)};

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            const sendTxn = (txn: GenericTxnRequest): Promise<GenericTxnResponse> => {

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            return this.checkCanBridge(checkArgs)

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                .then(({canBridge, reasonUnable, amount}) => {

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                    if (!canBridge) {

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                        const rejection = new CanBridgeError(reasonUnable, amount);

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                        return rejectPromise(rejection)

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                    return this.buildBridgeTokenTransaction(args)

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                        .then(sendTxn)

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                        .catch(rejectPromise)

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})

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/**

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         * Builds an ethers PopulatedTransaction instance for an ERC20 Approve call,

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         * approving some amount of a given token to be spent by the Synapse Bridge on its chain.

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         * The returned PopulatedTransaction must then be passed to the user via Web3 or some other

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         * framework so they can ultimately send the transaction.

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         * Should ALWAYS be called before performing any bridge transactions to ensure they don't fail.

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         * @param {Object} args

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         * @param {Token|string} args.token {@link Token} instance or valid on-chain address of the token the user will be sending

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         * to the bridge on the source chain.

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         * @param {BigNumberish} args.amount Optional, a specific amount of args.token to approve. By default, this function

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         * builds an Approve call using an "infinite" approval amount.

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         * @return {Promise<PopulatedTransaction>} Populated transaction instance which can be sent via ones choice

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         * of web3/ethers/etc.

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*/

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        async buildApproveTransaction(args: {

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            token:   Token | string,

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            amount?: BigNumberish

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        }): Promise<PopulatedTransaction> {

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            const [approveArgs, tokenAddress] = this.buildERC20ApproveArgs(args);

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            return ERC20.buildApproveTransaction(approveArgs, {tokenAddress, chainId: this.chainId})

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/**

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         * Builds and executes an ERC20 Approve call,

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         * approving some amount of a given token to be spent by the Synapse Bridge on its chain.

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         * The returned PopulatedTransaction must then be passed to the user via Web3 or some other

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         * framework so they can ultimately send the transaction.

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         * Should ALWAYS be called before performing any bridge transactions to ensure they don't fail.

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         * @param {Object} args

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         * @param {Token|string} args.token {@link Token} instance or valid on-chain address of the token the user will be sending

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         * to the bridge on the source chain.

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         * @param {BigNumberish} args.amount Optional, a specific amount of args.token to approve. By default, this function

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         * @param {EthersSigner} signer Valid ethers Signer instance for building a fully and properly populated

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         * transaction.

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*/

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        async executeApproveTransaction(

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            args:       {token: Token | string, amount?: BigNumberish},

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            signer:     EthersSigner,

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        ): Promise<ContractTransaction> {

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            const

2✔

433

                [approveArgs, tokenAddress] = this.buildERC20ApproveArgs(args),

2✔

434

                tokenParams = {tokenAddress, chainId: this.chainId};

2✔

435

2✔

436

            return ERC20.approve(approveArgs, tokenParams, signer)

2✔

437

2✔

438

14✔

439

        async checkCanBridge(args: CheckCanBridgeParams): Promise<CanBridgeResult> {

14✔

440

            const {token, signer, address} = args;

34✔

441

34✔

442

            let signerAddress: string;

34✔

444

                /* c8 ignore next */

2✔

445

                signerAddress = await signer.getAddress();

2✔

446

            } else if (address && address !== "") {

34✔

447

                signerAddress = address;

34✔

448

34✔

449

34✔

450

            const checkArgs: CanBridgeParams = {...args, address: signerAddress};

34✔

451

            const

34✔

452

                isTerraTx:          boolean = this.isTerra && token.isEqual(Tokens.UST),

34✔

453

                isGasTokenTransfer: boolean = (this.network.chainCurrency === token.symbol) && BridgeUtils.chainSupportsGasToken(this.chainId);

34✔

454

34✔

455

            if (isTerraTx) {

34✔

456

                return this.checkTerraUSTBalance(checkArgs);

6✔

457

6✔

458

34✔

459

            let hasBalanceRes: Promise<CanBridgeResult> = isGasTokenTransfer

34✔

460

                ? this.checkGasTokenBalance(checkArgs)

34✔

461

                : this.checkERC20Balance(checkArgs);

34✔

462

34✔

463

            if (isGasTokenTransfer) {

34✔

464

                return hasBalanceRes

14✔

465

14✔

466

14✔

467

            return this.checkNeedsApprove(checkArgs)

14✔

468

                    .then(approveRes => this.resolveApproveFunc(approveRes, hasBalanceRes, token))

14✔

469

                    .catch(rejectPromise)

14✔

470

14✔

471

14✔

472

        private async calculateBridgeRate(args: BridgeParams): Promise<BridgeOutputEstimate> {

14✔

473

            let {chainIdTo, amountFrom} = args;

230✔

474

230✔

475

            let toChainZap: GenericZapBridgeContract;

230✔

476

230✔

477

            if (chainIdTo !== ChainId.TERRA) {

230✔

478

                const toChainZapParams = {chainId: chainIdTo, signerOrProvider: rpcProviderForChain(chainIdTo)};

222✔

479

                toChainZap = SynapseEntities.GenericZapBridgeContractInstance(toChainZapParams);

222✔

480

222✔

481

230✔

482

            const {

230✔

483

                tokenFrom, tokenTo,

230✔

484

                tokenIndexFrom, tokenIndexTo,

230✔

485

                fromChainTokens

230✔

486

            } = this.makeBridgeTokenArgs(args);

230✔

487

230✔

488

            let {intermediateToken, bridgeConfigIntermediateToken} = TokenSwap.intermediateTokens(chainIdTo, tokenFrom);

230✔

489

230✔

490

            const

230✔

491

                TEN = BigNumber.from(10),

230✔

492

                fromCoinDecimals = tokenFrom.decimals(this.chainId);

230✔

493

230✔

494

            const

230✔

495

                involvesUST             = [tokenFrom.swapType, tokenTo.swapType].includes(SwapType.UST),

230✔

496

                intermediateTokenAddr   = bridgeConfigIntermediateToken.address(chainIdTo).toLowerCase(),

230✔

497

                bridgeFeeMultiplier     = involvesUST ? TEN.pow(12) : 1,

230✔

498

                amountFromFixedDecimals = involvesUST ? amountFrom : amountFrom.mul(TEN.pow(18-fromCoinDecimals));

230✔

499

230✔

500

            const bridgeFeeRequest: Promise<BigNumber> = this.bridgeConfigInstance["calculateSwapFee(string,uint256,uint256)"](

230✔

501

                intermediateTokenAddr,

230✔

502

                chainIdTo,

230✔

503

                amountFromFixedDecimals

230✔

504

);

230✔

505

230✔

506

            const checkEthBridge = (c1: number, c2: number, t: Token): boolean =>

230✔

507

                c1 === ChainId.ETH && BridgeUtils.isL2ETHChain(c2) && t.swapType === SwapType.ETH

460✔

508

230✔

509

            const

230✔

510

                ethToEth:   boolean = checkEthBridge(this.chainId, chainIdTo,    tokenTo),

230✔

511

                ethFromEth: boolean = checkEthBridge(chainIdTo,    this.chainId, tokenFrom);

230✔

512

230✔

513

            let amountToReceive_from_prom: Promise<BigNumber>;

230✔

514

230✔

515

            if (amountFrom.isZero()) {

230✔

516

                amountToReceive_from_prom = Promise.resolve(Zero);

8✔

517

            } else if (ethToEth || Tokens.isMintBurnToken(tokenFrom) || tokenFrom.isWrapperToken) {

230✔

518

                amountToReceive_from_prom = Promise.resolve(amountFromFixedDecimals);

138✔

519

            } else if (this.chainId === ChainId.ETH) {

222✔

520

                let liquidityAmounts = fromChainTokens.map((t) =>

10✔

521

                    tokenFrom.isEqual(t) ? amountFrom : Zero

30✔

522

);

10✔

523

10✔

524

                amountToReceive_from_prom = this.zapBridgeInstance.calculateTokenAmount(

10✔

525

                    liquidityAmounts,

10✔

526

                    true

10✔

527

);

10✔

528

            } else {

84✔

529

                amountToReceive_from_prom = BridgeUtils.calculateSwapL2Zap(

74✔

530

                    this.networkZapBridgeInstance,

74✔

531

                    intermediateToken.address(this.chainId),

74✔

532

                    tokenIndexFrom,

74✔

533

0,

74✔

534

                    amountFrom

74✔

535

);

74✔

536

74✔

537

230✔

538

            let amountToReceive_from = await amountToReceive_from_prom;

230✔

539

230✔

540

            let bridgeFee: BigNumber;

230✔

541

            /* c8 ignore start */

2✔

542

            try {

2✔

543

                bridgeFee = await bridgeFeeRequest;

2✔

544

            } catch (e) {

2✔

545

                console.error(`Error in bridge fee request: ${e}`);

2✔

546

                return rejectPromise(e)

2✔

547

2✔

548

            /* c8 ignore stop */

2✔

549

230✔

550

            amountToReceive_from = BridgeUtils.subBigNumSafe(amountToReceive_from, bridgeFee);

230✔

551

230✔

552

            let amountToReceive_to_prom: Promise<BigNumber>;

230✔

553

230✔

554

            if (amountToReceive_from.isZero()) {

230✔

555

                amountToReceive_to_prom = Promise.resolve(Zero);

10✔

556

            } else if (ethFromEth || Tokens.isMintBurnToken(tokenTo) || tokenTo.isWrapperToken) {

230✔

557

                amountToReceive_to_prom = Promise.resolve(amountToReceive_from);

134✔

558

            } else if (chainIdTo === ChainId.ETH) {

220✔

559

                amountToReceive_to_prom =

8✔

560

                    (toChainZap as L1BridgeZapContract).calculateRemoveLiquidityOneToken(

8✔

561

                        amountToReceive_from,

8✔

562

                        tokenIndexTo

8✔

563

);

8✔

564

            } else {

86✔

565

                amountToReceive_to_prom = BridgeUtils.calculateSwapL2Zap(

78✔

566

                    toChainZap,

78✔

567

                    intermediateToken.address(chainIdTo),

78✔

568

0,

78✔

569

                    tokenIndexTo,

78✔

570

                    amountToReceive_from

78✔

571

);

78✔

572

78✔

573

230✔

574

            let amountToReceive: BigNumber;

230✔

575

            /* c8 ignore next 6 */

2✔

576

            try {

2✔

577

                amountToReceive = await Promise.resolve(amountToReceive_to_prom)

2✔

578

            } catch (err) {

2✔

579

                return rejectPromise(err)

2✔

580

2✔

581

2✔

582

            let fee = bridgeFee;

230✔

583

            if (fee) {

230✔

584

                fee = fee.mul(bridgeFeeMultiplier);

230✔

588

230✔

589

            return {

230✔

590

                amountToReceive,

230✔

591

                bridgeFee: fee

230✔

592

230✔

593

230✔

594

14✔

595

        private buildETHMainnetBridgeTxn(

14✔

596

            args:      BridgeTransactionParams,

84✔

597

            tokenArgs: BridgeTokenArgs

84✔

598

        ): Promise<PopulatedTransaction> {

84✔

599

            const

84✔

600

                {addressTo, chainIdTo, amountFrom, amountTo} = args,

84✔

601

                zapBridge = SynapseEntities.L1BridgeZapContractInstance({

84✔

602

                    chainId: this.chainId,

84✔

603

                    signerOrProvider: this.provider

84✔

604

});

84✔

605

84✔

606

let

84✔

607

                easyRedeems:    ID[] = [Tokens.SYN.id,  Tokens.UST.id],

84✔

608

                easyDeposits:   ID[] = [

84✔

609

                    Tokens.HIGH.id, Tokens.DOG.id,  Tokens.FRAX.id,

84✔

610

                    Tokens.GOHM.id, Tokens.NEWO.id, Tokens.SDT.id,

84✔

611

],

84✔

612

                easyDepositETH: ID[] = [Tokens.NETH.id];

84✔

613

84✔

614

            let {castArgs, isEasy, txn} = this.checkEasyArgs(args, zapBridge, easyDeposits, easyRedeems, easyDepositETH);

84✔

615

            if (isEasy && txn) {

84✔

616

                return txn

34✔

617

34✔

618

50✔

619

            const liquidityAmounts = tokenArgs.fromChainTokens.map(t =>

50✔

620

                    args.tokenFrom.isEqual(t)

98✔

621

                        ? amountFrom

98✔

622

                        : Zero

98✔

623

);

50✔

624

50✔

625

            const {

50✔

626

                transactionDeadline,

50✔

627

                bridgeTransactionDeadline,

50✔

628

                minToSwapDestFromOrigin,

50✔

629

                minToSwapDest,

50✔

630

                minToSwapOriginMediumSlippage,

50✔

631

                minToSwapDestFromOriginMediumSlippage,

50✔

632

            } = BridgeUtils.getSlippages(amountFrom, amountTo);

50✔

633

50✔

634

            if (args.tokenTo.isEqual(Tokens.NUSD)) {

80✔

635

                if (args.tokenFrom.isEqual(Tokens.NUSD)) {

8✔

636

                    const bridgeDepositArgs = BridgeUtils.makeEasyParams(

4✔

637

                        args as BridgeUtils.BridgeTxParams,

4✔

638

                        this.chainId,

4✔

639

                        args.tokenTo

4✔

640

);

4✔

641

4✔

642

                    return zapBridge

4✔

643

                        .populateTransaction

4✔

644

                        .deposit(...bridgeDepositArgs)

4✔

645

                } else {

4✔

646

                    return zapBridge.populateTransaction.zapAndDeposit(

4✔

647

                        addressTo,

4✔

648

                        chainIdTo,

4✔

649

                        Tokens.NUSD.address(this.chainId),

4✔

650

                        liquidityAmounts,

4✔

651

                        minToSwapDest,

4✔

652

                        transactionDeadline,

4✔

653

4✔

654

4✔

655

8✔

656

80✔

657

            if (BridgeUtils.isETHLikeToken(args.tokenTo) || args.tokenTo.isEqual(Tokens.WETH)) {

84✔

658

                return zapBridge.populateTransaction.depositETHAndSwap(

24✔

659

                    ...BridgeUtils.depositETHParams(castArgs),

24✔

660

                    0, // nusd tokenindex,

24✔

661

                    tokenArgs.tokenIndexTo,

24✔

662

                    minToSwapDestFromOrigin, // minDy

24✔

663

                    bridgeTransactionDeadline,

24✔

664

                    BridgeUtils.overrides(amountFrom)

24✔

665

24✔

666

            } else if (args.tokenFrom.isEqual(Tokens.NUSD)) {

46✔

667

                return zapBridge.populateTransaction.depositAndSwap(

6✔

668

                    addressTo,

6✔

669

                    chainIdTo,

6✔

670

                    Tokens.NUSD.address(this.chainId),

6✔

671

                    amountFrom,

6✔

672

0,

6✔

673

                    tokenArgs.tokenIndexTo,

6✔

674

                    minToSwapDestFromOriginMediumSlippage,

6✔

675

                    bridgeTransactionDeadline

6✔

676

6✔

677

6✔

678

10✔

679

            return zapBridge.populateTransaction.zapAndDepositAndSwap(

10✔

680

                addressTo,

10✔

681

                chainIdTo,

10✔

682

                Tokens.NUSD.address(this.chainId),

10✔

683

                liquidityAmounts,

10✔

684

                minToSwapOriginMediumSlippage, // minToSwapOrigin,

10✔

685

                transactionDeadline,

10✔

686

0,

10✔

687

                tokenArgs.tokenIndexTo,

10✔

688

                minToSwapDestFromOriginMediumSlippage, //, minToSwapDestFromOrigin, // minDy

10✔

689

                bridgeTransactionDeadline,

10✔

690

10✔

691

10✔

692

14✔

693

        private buildL2BridgeTxn(

14✔

694

            args: BridgeTransactionParams,

272✔

695

            tokenArgs: BridgeTokenArgs

272✔

696

        ): Promise<PopulatedTransaction> {

272✔

697

            const

272✔

698

                {chainIdTo, amountFrom, amountTo} = args,

272✔

699

                zapBridge = SynapseEntities.L2BridgeZapContractInstance({

272✔

700

                    chainId: this.chainId,

272✔

701

                    signerOrProvider: this.provider

272✔

702

});

272✔

703

272✔

704

            tokenArgs.tokenFrom = tokenArgs.tokenFrom.isEqual(Tokens.AVWETH)

272✔

706

                : tokenArgs.tokenFrom;

272✔

707

272✔

708

let

272✔

709

                easyDeposits:   ID[] = [],

272✔

710

                easyDepositETH: ID[] = [],

272✔

711

                easyRedeems:    ID[] = [

272✔

712

                    Tokens.SYN.id,  Tokens.HIGH.id, Tokens.DOG.id,

272✔

713

                    Tokens.FRAX.id, Tokens.UST.id,  Tokens.GOHM.id,

272✔

714

                    Tokens.NEWO.id, Tokens.SDT.id,  Tokens.LUNA.id,

272✔

715

];

272✔

716

272✔

717

            BridgeUtils.DepositIfChainTokens.forEach((args) => {

272✔

718

                let {chainId, tokens, depositEth, altChainId} = args;

1,360✔

719

1,360✔

720

let

1,360✔

721

                    hasAltChain = typeof altChainId !== 'undefined',

1,360✔

722

                    tokenHashes = tokens.map((t) => t.id);

1,360✔

723

1,360✔

724

                if (this.chainId === chainId) {

1,360✔

725

                    depositEth

140✔

726

                        ? easyDepositETH.push(...tokenHashes)

140✔

727

                        : easyDeposits.push(...tokenHashes);

140✔

728

                } else {

1,360✔

729

                    if (hasAltChain) {

1,220✔

730

                        if (this.chainId === altChainId) easyRedeems.push(...tokenHashes);

464✔

731

                    } else {

1,220✔

732

                        easyRedeems.push(...tokenHashes);

756✔

733

756✔

734

1,220✔

735

})

272✔

736

272✔

737

            let {castArgs, isEasy, txn} = this.checkEasyArgs(args, zapBridge, easyDeposits, easyRedeems, easyDepositETH);

272✔

738

            if (isEasy && txn) {

272✔

739

                return txn

90✔

740

90✔

741

272✔

742

            const {

272✔

743

                transactionDeadline,

272✔

744

                bridgeTransactionDeadline,

272✔

745

                minToSwapOriginHighSlippage,

272✔

746

                minToSwapDestFromOriginHighSlippage,

272✔

747

                minToSwapDest,

272✔

748

            } = BridgeUtils.getSlippages(amountFrom, amountTo);

272✔

749

272✔

750

            const easyRedeemAndSwap = (baseToken: Token): Promise<PopulatedTransaction> =>

272✔

751

                zapBridge

12✔

752

                    .populateTransaction

12✔

753

                    .redeemAndSwap(

12✔

754

                        ...BridgeUtils.makeEasyParams(castArgs, this.chainId, baseToken),

12✔

755

0,

12✔

756

                        tokenArgs.tokenIndexTo,

12✔

757

                        minToSwapDest,

12✔

758

                        transactionDeadline,

12✔

759

272✔

760

272✔

761

            const easySwapAndRedeem = (baseToken: Token, swapETH: boolean = false): Promise<PopulatedTransaction> => {

272✔

762

                let populateFn = swapETH

22✔

763

                    ? zapBridge.populateTransaction.swapETHAndRedeem

22✔

764

                    : zapBridge.populateTransaction.swapAndRedeem

22✔

765

22✔

766

                return populateFn(

22✔

767

                    ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, baseToken),

22✔

768

                    tokenArgs.tokenIndexFrom,

22✔

769

0,

22✔

770

                    amountFrom,

22✔

771

                    minToSwapOriginHighSlippage, // minToSwapOrigin, // minToSwapOriginHighSlippage,

22✔

772

                    transactionDeadline,

22✔

773

                    swapETH ? BridgeUtils.overrides(amountFrom) : {}

22✔

774

22✔

775

22✔

776

272✔

777

            const easySwapAndRedeemAndSwap = (baseToken: Token, swapETH: boolean = false): Promise<PopulatedTransaction> => {

272✔

778

                let populateFn = swapETH

74✔

779

                    ? zapBridge.populateTransaction.swapETHAndRedeemAndSwap

74✔

780

                    : zapBridge.populateTransaction.swapAndRedeemAndSwap

74✔

781

74✔

782

                return populateFn(

74✔

783

                    ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, baseToken),

74✔

784

                    tokenArgs.tokenIndexFrom,

74✔

785

0,

74✔

786

                    amountFrom,

74✔

787

                    minToSwapOriginHighSlippage,

74✔

788

                    transactionDeadline,

74✔

789

0,

74✔

790

                    tokenArgs.tokenIndexTo,

74✔

791

                    minToSwapDestFromOriginHighSlippage, // swapMinAmount

74✔

792

                    bridgeTransactionDeadline, // toSwapDeadline, // swapDeadline

74✔

793

                    swapETH ? BridgeUtils.overrides(amountFrom) : {}

74✔

794

74✔

795

74✔

796

272✔

797

            switch (tokenSwitch(args.tokenTo)) {

272✔

798

                case Tokens.NUSD:

272✔

799

                    if (args.tokenFrom.isEqual(Tokens.NUSD)) {

30✔

800

                        return zapBridge

8✔

801

                            .populateTransaction

8✔

802

                            .redeem(...BridgeUtils.makeEasyParams(castArgs, this.chainId, Tokens.NUSD))

8✔

803

8✔

804

30✔

805

                    return zapBridge

30✔

806

                        .populateTransaction

30✔

807

                        .swapAndRedeem(

30✔

808

                            ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NUSD),

30✔

809

                            tokenArgs.tokenIndexFrom,

30✔

810

0,

30✔

811

                            amountFrom,

30✔

812

                            minToSwapOriginHighSlippage,

30✔

813

                            transactionDeadline

30✔

814

30✔

815

                case Tokens.GMX:

272✔

816

                    let params = BridgeUtils.makeEasyParams(castArgs, this.chainId, Tokens.GMX);

8✔

817

                    let [addrTo, chainTo,,amount] = params;

8✔

818

8✔

819

                    return this.chainId === ChainId.ARBITRUM

8✔

820

                        ? zapBridge.populateTransaction.deposit(...params)

8✔

821

                        : this.bridgeInstance

8✔

822

                            .populateTransaction

4✔

823

                            .redeem(

4✔

824

                                addrTo,

4✔

825

                                chainTo,

4✔

826

                                Tokens.GMX.wrapperAddress(this.chainId),

4✔

827

                                amount

4✔

828

8✔

829

                default:

272✔

830

                    if (chainIdTo === ChainId.ETH) {

134✔

831

                        if (this.isL2ETHChain && args.tokenFrom.swapType === SwapType.ETH) {

48✔

832

                            if (args.tokenFrom.isEqual(Tokens.NETH)) {

32✔

833

                                return zapBridge

10✔

834

                                    .populateTransaction

10✔

835

                                    .redeem(...BridgeUtils.makeEasyParams(castArgs, this.chainId, Tokens.NETH))

10✔

836

                            } else {

32✔

837

                                let useSwapETH = !BridgeUtils.isETHLikeToken(args.tokenFrom);

22✔

838

                                return easySwapAndRedeem(Tokens.NETH, useSwapETH)

22✔

839

22✔

840

                        } else if (args.tokenFrom.isEqual(Tokens.NUSD)) {

48✔

841

                            return zapBridge

8✔

842

                                .populateTransaction

8✔

843

                                .redeemAndRemove(

8✔

844

                                    ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NUSD),

8✔

845

                                    amountFrom,

8✔

846

                                    tokenArgs.tokenIndexTo,

8✔

847

                                    minToSwapDest,

8✔

848

                                    transactionDeadline

8✔

849

8✔

850

8✔

851

44✔

852

                        return zapBridge

44✔

853

                            .populateTransaction

44✔

854

                            .swapAndRedeemAndRemove(

44✔

855

                                ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NUSD),

44✔

856

                                tokenArgs.tokenIndexFrom,

44✔

857

0,

44✔

858

                                amountFrom,

44✔

859

                                minToSwapOriginHighSlippage,

44✔

860

                                transactionDeadline,

44✔

861

                                tokenArgs.tokenIndexTo, //swapTokenIndex

44✔

862

                                minToSwapDestFromOriginHighSlippage, // swapMinAmount

44✔

863

                                bridgeTransactionDeadline, // toSwapDeadline, // swapDeadline

44✔

864

44✔

865

44✔

866

134✔

867

                    if (args.tokenFrom.isEqual(Tokens.NUSD) || args.tokenFrom.isEqual(Tokens.NETH)) {

134✔

868

                        return easyRedeemAndSwap(args.tokenFrom)

12✔

869

12✔

870

134✔

871

                    if (args.tokenFrom.swapType === SwapType.ETH) {

134✔

872

                        let useSwapETH = !BridgeUtils.isETHLikeToken(args.tokenFrom);

56✔

873

                        return easySwapAndRedeemAndSwap(Tokens.NETH, useSwapETH)

56✔

874

56✔

875

126✔

876

                    return easySwapAndRedeemAndSwap(Tokens.NUSD)

126✔

877

272✔

879

14✔

880

        private buildTerraBridgeTxn({

14✔

881

            addressTo,

8✔

882

            chainIdTo,

8✔

883

            amountFrom

8✔

884

        }: BridgeTransactionParams): Promise<MsgExecuteContract> {

8✔

885

            return Promise.resolve(new MsgExecuteContract(

8✔

886

                null,

8✔

887

                this.bridgeAddress,

8✔

888

8✔

889

                    deposit: {

8✔

890

                        to_address: toLower(addressTo),

8✔

891

                        chain_id:  `${chainIdTo}`,

8✔

892

                        denom:     "uusd"

8✔

893

8✔

894

},

8✔

895

                { uusd: amountFrom.toNumber() }

8✔

896

))

8✔

897

8✔

898

14✔

899

        private makeBridgeTokenArgs(args: BridgeParams): BridgeTokenArgs {

14✔

900

            let {tokenFrom, tokenTo, chainIdTo} = args;

644✔

901

644✔

902

            let bridgeTokens: (t1: Token, t2: Token) => [Token, Token];

644✔

903

644✔

904

            switch (tokenFrom.swapType) {

644✔

905

                case SwapType.ETH:

644✔

906

                    bridgeTokens = BridgeUtils.checkReplaceTokens(Tokens.ETH, Tokens.WETH);

216✔

907

                    break;

216✔

908

                case SwapType.AVAX:

644✔

909

                    bridgeTokens = BridgeUtils.checkReplaceTokens(Tokens.AVAX, Tokens.WAVAX);

12✔

910

                    break;

12✔

911

                case SwapType.MOVR:

644✔

912

                    bridgeTokens = BridgeUtils.checkReplaceTokens(Tokens.MOVR, Tokens.WMOVR);

12✔

913

                    break;

12✔

914

                default:

644✔

915

                    bridgeTokens = (t1: Token, t2: Token) => [t1, t2];

404✔

916

644✔

917

644✔

918

            [tokenFrom, tokenTo] = bridgeTokens(tokenFrom, tokenTo);

644✔

919

644✔

920

            const

644✔

921

                [fromChainTokens, tokenIndexFrom] = BridgeUtils.makeTokenArgs(this.chainId, tokenFrom),

644✔

922

                [toChainTokens,   tokenIndexTo]   = BridgeUtils.makeTokenArgs(chainIdTo,    tokenTo);

644✔

923

644✔

924

            return {

644✔

925

                fromChainTokens,

644✔

926

                toChainTokens,

644✔

927

                tokenFrom,

644✔

928

                tokenTo,

644✔

929

                tokenIndexFrom,

644✔

930

                tokenIndexTo

644✔

931

644✔

932

644✔

933

14✔

934

        private checkEasyArgs(

14✔

935

            args:            BridgeTransactionParams,

356✔

936

            zapBridge:       GenericZapBridgeContract,

356✔

937

            easyDeposits:    ID[],

356✔

938

            easyRedeems:     ID[],

356✔

939

            easyDepositETH?: ID[],

356✔

940

        ): EasyArgsCheck {

356✔

941

let

356✔

942

                castArgs = args as BridgeUtils.BridgeTxParams,

356✔

943

                isEasy: boolean = false,

356✔

944

                txn:    Promise<PopulatedTransaction>;

356✔

945

356✔

946

            const params = BridgeUtils.makeEasyParams(castArgs, this.chainId, args.tokenTo);

356✔

947

356✔

948

            switch (true) {

356✔

949

                case easyRedeems.includes(args.tokenTo.id):

356✔

950

                    isEasy = true;

74✔

951

                    txn    = zapBridge.populateTransaction.redeem(...params);

74✔

952

                    break;

74✔

953

                case easyDeposits.includes(args.tokenTo.id):

356✔

954

                    isEasy = true;

32✔

955

                    txn    = zapBridge.populateTransaction.deposit(...params);

32✔

956

                    break;

32✔

957

                case easyDepositETH.includes(args.tokenTo.id):

356✔

958

                    isEasy = true;

18✔

959

                    txn    =  zapBridge

18✔

960

                        .populateTransaction

18✔

961

                        .depositETH(

18✔

962

                            ...BridgeUtils.depositETHParams(castArgs),

18✔

963

                            BridgeUtils.overrides(args.amountFrom)

18✔

964

);

18✔

965

                    break;

18✔

966

356✔

967

356✔

968

            return {castArgs, isEasy, txn}

356✔

969

356✔

970

14✔

971

        private async checkSwapSupported(args: BridgeParams): Promise<boolean> {

14✔

972

            return new Promise<boolean>((resolve, reject) => {

272✔

973

                let [swapSupported, errReason] = this.swapSupported(args);

272✔

974

                if (!swapSupported) {

272✔

975

                    reject(errReason);

32✔

976

                    return

32✔

977

32✔

978

272✔

979

                resolve(true);

272✔

980

})

272✔

981

272✔

982

14✔

983

        private buildERC20ApproveArgs(args: {

14✔

984

            token:   Token | string,

226✔

985

            amount?: BigNumberish

226✔

986

        }): [ERC20.ApproveArgs, string] {

226✔

987

            const {token, amount} = args;

226✔

988

226✔

989

            let tokenAddr: string = instanceOfToken(token)

226✔

990

                ? token.address(this.chainId)

226✔

992

226✔

993

            let spender: string;

226✔

994

            if (tokenAddr === Tokens.UST.address(this.chainId)) {

226✔

995

                spender = this.bridgeAddress;

22✔

996

            } else {

226✔

997

                spender = this.zapBridgeAddress;

204✔

998

204✔

999

226✔

1000

            return [{

226✔

1001

                spender,

226✔

1002

                amount

226✔

1003

            }, tokenAddr]

226✔

1004

226✔

1005

14✔

1006

        async getAllowanceForAddress(args: {

14✔

1007

            address: string,

10✔

1008

            token:   Token,

10✔

1009

        }): Promise<BigNumber> {

10✔

1010

            let { address, token } = args;

10✔

1011

            let tokenAddress = token.address(this.chainId);

10✔

1012

10✔

1013

            return ERC20.allowanceOf(address, this.zapBridgeAddress, {tokenAddress, chainId: this.chainId})

10✔

1014

10✔

1015

14✔

1016

        private async resolveApproveFunc(

14✔

1017

            approveRes:    NeedsTokenApproveResult,

14✔

1018

            hasBalanceRes: Promise<CanBridgeResult>,

14✔

1019

            token:         Token

14✔

1020

        ): Promise<CanBridgeResult> {

14✔

1021

            const {needsApproval, currentAllowance} = approveRes;

14✔

1022

            const errStr: string = `Spend allowance of Bridge too low for token ${token.symbol}`;

14✔

1023

14✔

1024

            return needsApproval

14✔

1026

                : hasBalanceRes

14✔

1027

14✔

1028

14✔

1029

        private async checkNeedsApprove({

14✔

1030

            address,

14✔

1031

            token,

14✔

1032

            amount=MAX_APPROVAL_AMOUNT.sub(1)

14✔

1033

        }: CheckCanBridgeParams): Promise<NeedsTokenApproveResult> {

14✔

1034

            const [{spender}, tokenAddress] = this.buildERC20ApproveArgs({token, amount});

14✔

1035

14✔

1036

            return ERC20.allowanceOf(address, spender, {tokenAddress, chainId: this.chainId})

14✔

1037

                .then(currentAllowance => ({needsApproval: currentAllowance.lt(amount), currentAllowance}))

14✔

1038

14✔

1039

14✔

1040

        private async checkGasTokenBalance(args: CanBridgeParams): Promise<CanBridgeResult> {

14✔

1041

            const {signer, address, amount, token} = args;

14✔

1042

14✔

1043

            let balanceFn: () => Promise<BigNumber>;

14✔

1045

                /* c8 ignore next */

2✔

1046

                balanceFn = signer.getBalance;

2✔

1047

            } else if (address) {

14✔

1048

                balanceFn = () => this.provider.getBalance(address);

14✔

1049

14✔

1050

14✔

1051

            return this.resolveBalanceFunc(

14✔

1052

                balanceFn(),

14✔

1053

                amount,

14✔

1054

                token

14✔

1055

14✔

1056

14✔

1057

14✔

1058

        private async checkERC20Balance(args: CheckCanBridgeParams): Promise<CanBridgeResult> {

14✔

1059

            const

14✔

1060

                {address, amount, token} = args,

14✔

1061

                tokenAddress = token.address(this.chainId);

14✔

1062

14✔

1063

            return this.resolveBalanceFunc(

14✔

1064

                ERC20.balanceOf(address, {tokenAddress, chainId: this.chainId}),

14✔

1065

                amount,

14✔

1066

                token

14✔

1067

14✔

1068

14✔

1069

14✔

1070

        private async checkTerraUSTBalance({address, token, amount}: CanBridgeParams): Promise<CanBridgeResult> {

14✔

1071

            const balProm: Promise<BigNumber> = this.terraProvider.bank.balance(address)

6✔

1072

                .then(([res]) => {

6✔

1073

                    let coin = res.get("uusd");

6✔

1074

6✔

1075

                    let ustBalance: BigNumber = Zero;

6✔

1076

6✔

1077

                    if (coin) {

6✔

1078

                        const {amount} = coin.toData();

6✔

1079

                        if (amount && (amount !== "")) {

6✔

1080

                            ustBalance = BigNumber.from(amount);

6✔

1081

6✔

1082

6✔

1083

6✔

1084

                    return ustBalance

6✔

1085

})

6✔

1086

6✔

1087

            return this.resolveBalanceFunc(

6✔

1088

                balProm,

6✔

1089

                amount,

6✔

1090

                token

6✔

1091

6✔

1092

6✔

1093

14✔

1094

        private async resolveBalanceFunc(

14✔

1095

            prom:   Promise<BigNumber>,

34✔

1096

            amount: BigNumberish,

34✔

1097

            token:  Token

34✔

1098

        ): Promise<CanBridgeResult> {

34✔

1099

            return Promise.resolve(prom)

34✔

1100

                .then(balance => {

34✔

1101

                    const errMsg: string = `Balance of token ${token.symbol} is too low`;

34✔

1102

34✔

1103

                    if (balance.gte(amount)) {

34✔

1104

                        return {canBridge: true}

4✔

1105

4✔

1106

34✔

1107

                    return {canBridge: false, reasonUnable: errMsg, amount: balance}

34✔

1108

})

34✔

1109

                .catch(rejectPromise)

34✔

1110

34✔

1111

14✔

1112

14✔

1113

    const REQUIRED_CONFS: NumberMap = {

14✔

1114

        [ChainId.ETH]:       7,

14✔

1115

        [ChainId.OPTIMISM]:  1,

14✔

1116

        [ChainId.CRONOS]:    6,

14✔

1117

        [ChainId.BSC]:       14,

14✔

1118

        [ChainId.POLYGON]:   128,

14✔

1119

        [ChainId.FANTOM]:    5,

14✔

1120

        [ChainId.BOBA]:      1,

14✔

1121

        [ChainId.METIS]:     6,

14✔

1122

        [ChainId.MOONBEAM]:  21,

14✔

1123

        [ChainId.MOONRIVER]: 21,

14✔

1124

        [ChainId.ARBITRUM]:  40,

14✔

1125

        [ChainId.AVALANCHE]: 5,

14✔

1126

        [ChainId.TERRA]:     1,

14✔

1127

        [ChainId.AURORA]:    5,

14✔

1128

        [ChainId.HARMONY]:   1,

14✔

1129

};

14✔

1130

14✔

1131

    export function getRequiredConfirmationsForBridge(network: Networks.Network | number): number {

14✔

1133

1,072✔

1135

1,072✔

1136

14✔

1137

    /* c8 ignore next */

2✔

1138

    export function bridgeSwapSupported(args: TokenSwap.BridgeSwapSupportedParams): TokenSwap.SwapSupportedResult {

2✔

1139

        return TokenSwap.bridgeSwapSupported(args)

424✔

1140

424✔

1141

14✔

synapsecns / sdk / 2032637210

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synapsecns / sdk / 2032637210

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