synapsecns/sdk | Build 1964208807 | src/bridge/bridge.ts | Coveralls

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import {toLower} from "lodash-es";

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import {

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    ChainId,

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    isTerraChainId

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}  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";

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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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/**

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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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    const TEN = BigNumber.from(10);

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    type CanBridgeResult = {

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        canBridge: boolean;

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        error?:    Error | string;

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        amount?:   BigNumberish;

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    export type CheckCanBridgeResult = [boolean, 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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    type CanBridgeArgs = {

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        address?: string;

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        signer?:  EthersSigner;

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        amount:   BigNumberish;

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        token:    Token;

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    type CheckCanBridgeParams = {

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        address: string,

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        token:   Token,

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        amount:  BigNumberish,

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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,

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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, error, amount}) =>

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                    canBridge

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                        : rejectPromise(new CanBridgeError(error, amount))

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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

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

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

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            return ERC20.approve(approveArgs, tokenParams, signer)

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

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            const {token, signer, address} = args;

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            let signerAddress: string;

30✔

442

                /* c8 ignore next */

2✔

443

                signerAddress = await signer.getAddress();

2✔

444

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

30✔

445

                signerAddress = address;

30✔

446

30✔

447

30✔

448

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

30✔

449

30✔

450

            const

30✔

451

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

30✔

452

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

30✔

453

30✔

454

            if (isTerraTx) {

30✔

455

                return this.checkTerraUSTBalance(checkArgs);

4✔

456

4✔

457

30✔

458

            let hasBalanceRes: Promise<CanBridgeResult> = isGasTokenTransfer

30✔

459

                ? this.checkGasTokenBalance(checkArgs)

30✔

460

                : this.checkERC20Balance(checkArgs);

30✔

461

30✔

462

            return isGasTokenTransfer

30✔

463

                ? hasBalanceRes

30✔

464

                : this.checkNeedsApprove(checkArgs)

30✔

465

                    .then(approveRes => Bridge.SynapseBridge.resolveApproveFunc(approveRes, hasBalanceRes, token))

12✔

466

                    .catch(rejectPromise)

12✔

467

30✔

468

12✔

469

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

12✔

470

            let {chainIdTo, amountFrom} = args;

176✔

471

176✔

472

            let toChainZap: GenericZapBridgeContract;

176✔

473

176✔

474

            if (chainIdTo !== ChainId.TERRA) {

176✔

475

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

168✔

476

                toChainZap = SynapseEntities.GenericZapBridgeContractInstance(toChainZapParams);

168✔

477

168✔

478

176✔

479

            const {

176✔

480

                tokenFrom, tokenTo,

176✔

481

                tokenIndexFrom, tokenIndexTo,

176✔

482

                fromChainTokens

176✔

483

            } = this.makeBridgeTokenArgs(args);

176✔

484

176✔

485

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

176✔

486

176✔

487

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

176✔

488

176✔

489

            const

176✔

490

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

176✔

491

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

176✔

492

                amtFrom               = involvesUST ? amountFrom : TEN.pow(18-tokenFrom.decimals(this.chainId));

176✔

493

176✔

494

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

176✔

495

                intermediateTokenAddr,

176✔

496

                chainIdTo,

176✔

497

                amtFrom

176✔

498

);

176✔

499

176✔

500

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

176✔

501

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

352✔

502

176✔

503

            const

176✔

504

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

176✔

505

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

176✔

506

176✔

507

            let amountToReceive_from_prom: Promise<BigNumber>;

176✔

508

            switch (true) {

176✔

509

                case amountFrom.eq(Zero):

176✔

510

                    amountToReceive_from_prom = Promise.resolve(Zero);

8✔

511

                    break;

8✔

512

                case ethToEth:

176✔

513

                case Tokens.isMintBurnToken(tokenFrom):

176✔

514

                case tokenFrom.isWrappedToken:

176✔

515

                    amountToReceive_from_prom = Promise.resolve(amountFrom);

112✔

516

                    break;

112✔

517

                case this.chainId === ChainId.ETH:

176✔

518

                    let liquidityAmounts = fromChainTokens.map((t) => tokenFrom.isEqual(t) ? amountFrom : Zero);

8✔

519

                    amountToReceive_from_prom = this.zapBridgeInstance.calculateTokenAmount(liquidityAmounts, true);

8✔

520

8✔

521

                    break;

8✔

522

                default:

176✔

523

                    amountToReceive_from_prom = BridgeUtils.calculateSwapL2Zap(

48✔

524

                        this.networkZapBridgeInstance,

48✔

525

                        intermediateToken.address(this.chainId),

48✔

526

                        tokenIndexFrom,

48✔

527

0,

48✔

528

                        amountFrom

48✔

529

);

48✔

530

176✔

531

176✔

532

            let amountToReceive_from = await amountToReceive_from_prom;

176✔

533

176✔

534

            let bridgeFee: BigNumber;

176✔

535

            /* c8 ignore start */

2✔

536

            try {

2✔

537

                bridgeFee = await bridgeFeeRequest;

2✔

538

                if (bridgeFee === null) {

2✔

539

                    console.error("calculateSwapFee returned null");

2✔

540

                    return rejectPromise("calculateSwapFee returned null")

2✔

541

2✔

542

            } catch (e) {

2✔

543

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

2✔

544

                return rejectPromise(e)

2✔

545

2✔

546

            /* c8 ignore stop */

2✔

547

176✔

548

            amountToReceive_from = BridgeUtils.subBigNumSafe(amountToReceive_from, bridgeFee);

176✔

549

176✔

550

            let amountToReceive_to_prom: Promise<BigNumber>;

176✔

551

            switch (true) {

176✔

552

                case amountToReceive_from.isZero():

176✔

553

                    amountToReceive_to_prom = Promise.resolve(Zero);

12✔

554

                    break;

12✔

555

                case ethFromEth:

176✔

556

                case Tokens.isMintBurnToken(tokenTo):

176✔

557

                case tokenTo.isWrappedToken:

176✔

558

                    amountToReceive_to_prom = Promise.resolve(amountToReceive_from);

102✔

559

                    break;

102✔

560

                case chainIdTo === ChainId.ETH:

176✔

561

                    amountToReceive_to_prom = (toChainZap as L1BridgeZapContract)

6✔

562

                        .calculateRemoveLiquidityOneToken(amountToReceive_from, tokenIndexTo);

6✔

563

6✔

564

                    break;

6✔

565

                default:

176✔

566

                    amountToReceive_to_prom = BridgeUtils.calculateSwapL2Zap(

56✔

567

                        toChainZap,

56✔

568

                        intermediateToken.address(chainIdTo),

56✔

569

0,

56✔

570

                        tokenIndexTo,

56✔

571

                        amountToReceive_from

56✔

572

);

56✔

573

176✔

574

176✔

575

            let amountToReceive: BigNumber;

176✔

576

            /* c8 ignore next 6 */

2✔

577

            try {

2✔

578

                amountToReceive = await Promise.resolve(amountToReceive_to_prom)

2✔

579

            } catch (err) {

2✔

580

                return rejectPromise(err)

2✔

581

2✔

582

2✔

583

            return {

176✔

584

                amountToReceive,

176✔

586

176✔

587

176✔

588

12✔

589

        private buildETHMainnetBridgeTxn(

12✔

590

            args:      BridgeTransactionParams,

42✔

591

            tokenArgs: BridgeTokenArgs

42✔

592

        ): Promise<PopulatedTransaction> {

42✔

593

            const

42✔

594

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

42✔

595

                zapBridge = SynapseEntities.L1BridgeZapContractInstance({

42✔

596

                    chainId: this.chainId,

42✔

597

                    signerOrProvider: this.provider

42✔

598

});

42✔

599

42✔

600

let

42✔

601

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

42✔

602

                easyDeposits:   ID[] = [Tokens.HIGH.id, Tokens.DOG.id, Tokens.FRAX.id],

42✔

603

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

42✔

604

42✔

605

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

42✔

606

            if (isEasy && txn) {

42✔

607

                return txn

12✔

608

12✔

609

42✔

610

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

42✔

611

                    args.tokenFrom.isEqual(t)

58✔

612

                        ? amountFrom

58✔

613

                        : Zero

58✔

614

);

42✔

615

42✔

616

            const {

42✔

617

                transactionDeadline,

42✔

618

                bridgeTransactionDeadline,

42✔

619

                minToSwapDestFromOrigin,

42✔

620

                minToSwapDest,

42✔

621

                minToSwapOriginMediumSlippage,

42✔

622

                minToSwapDestFromOriginMediumSlippage,

42✔

623

            } = BridgeUtils.getSlippages(amountFrom, amountTo);

42✔

624

42✔

625

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

42✔

626

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

4✔

627

                    const bridgeDepositArgs = BridgeUtils.makeEasyParams(

2✔

628

                        args as BridgeUtils.BridgeTxParams,

2✔

629

                        this.chainId,

2✔

630

                        args.tokenTo

2✔

631

);

2✔

632

2✔

633

                    return zapBridge

2✔

634

                        .populateTransaction

2✔

635

                        .deposit(...bridgeDepositArgs)

2✔

636

                } else {

2✔

637

                    return zapBridge.populateTransaction.zapAndDeposit(

2✔

638

                        addressTo,

2✔

639

                        chainIdTo,

2✔

640

                        Tokens.NUSD.address(this.chainId),

2✔

641

                        liquidityAmounts,

2✔

642

                        minToSwapDest,

2✔

643

                        transactionDeadline,

2✔

644

2✔

645

2✔

646

4✔

647

24✔

648

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

42✔

649

                return zapBridge.populateTransaction.depositETHAndSwap(

10✔

650

                    ...BridgeUtils.depositETHParams(castArgs),

10✔

651

                    0, // nusd tokenindex,

10✔

652

                    tokenArgs.tokenIndexTo,

10✔

653

                    minToSwapDestFromOrigin, // minDy

10✔

654

                    bridgeTransactionDeadline,

10✔

655

                    BridgeUtils.overrides(amountFrom)

10✔

656

10✔

657

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

38✔

658

                return zapBridge.populateTransaction.depositAndSwap(

4✔

659

                    addressTo,

4✔

660

                    chainIdTo,

4✔

661

                    Tokens.NUSD.address(this.chainId),

4✔

662

                    amountFrom,

4✔

663

0,

4✔

664

                    tokenArgs.tokenIndexTo,

4✔

665

                    minToSwapDestFromOriginMediumSlippage,

4✔

666

                    bridgeTransactionDeadline

4✔

667

4✔

668

4✔

669

38✔

670

            return zapBridge.populateTransaction.zapAndDepositAndSwap(

38✔

671

                addressTo,

38✔

672

                chainIdTo,

38✔

673

                Tokens.NUSD.address(this.chainId),

38✔

674

                liquidityAmounts,

38✔

675

                minToSwapOriginMediumSlippage, // minToSwapOrigin,

38✔

676

                transactionDeadline,

38✔

677

0,

38✔

678

                tokenArgs.tokenIndexTo,

38✔

679

                minToSwapDestFromOriginMediumSlippage, //, minToSwapDestFromOrigin, // minDy

38✔

680

                bridgeTransactionDeadline,

38✔

681

38✔

682

38✔

683

12✔

684

        private buildL2BridgeTxn(

12✔

685

            args: BridgeTransactionParams,

118✔

686

            tokenArgs: BridgeTokenArgs

118✔

687

        ): Promise<PopulatedTransaction> {

118✔

688

            const

118✔

689

                {chainIdTo, amountFrom, amountTo} = args,

118✔

690

                zapBridge = SynapseEntities.L2BridgeZapContractInstance({

118✔

691

                    chainId: this.chainId,

118✔

692

                    signerOrProvider: this.provider

118✔

693

});

118✔

694

118✔

695

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

118✔

697

                : tokenArgs.tokenFrom;

118✔

698

118✔

699

let

118✔

700

                easyDeposits:   ID[] = [],

118✔

701

                easyDepositETH: ID[] = [],

118✔

702

                easyRedeems:    ID[] = [

118✔

703

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

118✔

704

                    Tokens.DOG.id, Tokens.FRAX.id

118✔

705

];

118✔

706

118✔

707

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

118✔

708

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

590✔

709

590✔

710

let

590✔

711

                    hasAltChain = typeof altChainId !== 'undefined',

590✔

712

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

590✔

713

590✔

714

                if (this.chainId === chainId) {

590✔

715

                    depositEth

58✔

716

                        ? easyDepositETH.push(...tokenHashes)

58✔

717

                        : easyDeposits.push(...tokenHashes);

58✔

718

                } else {

590✔

719

                    if (hasAltChain) {

532✔

720

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

202✔

721

                    } else {

532✔

722

                        easyRedeems.push(...tokenHashes);

330✔

723

330✔

724

532✔

725

})

118✔

726

118✔

727

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

118✔

728

            if (isEasy && txn) {

118✔

729

                return txn

26✔

730

26✔

731

118✔

732

            const {

118✔

733

                transactionDeadline,

118✔

734

                bridgeTransactionDeadline,

118✔

735

                minToSwapOriginHighSlippage,

118✔

736

                minToSwapDestFromOriginHighSlippage,

118✔

737

                minToSwapDest,

118✔

738

            } = BridgeUtils.getSlippages(amountFrom, amountTo);

118✔

739

118✔

740

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

118✔

741

                zapBridge

6✔

742

                    .populateTransaction

6✔

743

                    .redeemAndSwap(

6✔

744

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

6✔

745

0,

6✔

746

                        tokenArgs.tokenIndexTo,

6✔

747

                        minToSwapDest,

6✔

748

                        transactionDeadline,

6✔

749

118✔

750

118✔

751

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

118✔

752

                let populateFn = swapETH

12✔

753

                    ? zapBridge.populateTransaction.swapETHAndRedeem

12✔

754

                    : zapBridge.populateTransaction.swapAndRedeem

12✔

755

12✔

756

                return populateFn(

12✔

757

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

12✔

758

                    tokenArgs.tokenIndexFrom,

12✔

759

0,

12✔

760

                    amountFrom,

12✔

761

                    minToSwapOriginHighSlippage, // minToSwapOrigin, // minToSwapOriginHighSlippage,

12✔

762

                    transactionDeadline,

12✔

763

                    swapETH ? BridgeUtils.overrides(amountFrom) : {}

12✔

764

12✔

765

12✔

766

118✔

767

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

118✔

768

                let populateFn = swapETH

36✔

769

                    ? zapBridge.populateTransaction.swapETHAndRedeemAndSwap

36✔

770

                    : zapBridge.populateTransaction.swapAndRedeemAndSwap

36✔

771

36✔

772

                return populateFn(

36✔

773

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

36✔

774

                    tokenArgs.tokenIndexFrom,

36✔

775

0,

36✔

776

                    amountFrom,

36✔

777

                    minToSwapOriginHighSlippage,

36✔

778

                    transactionDeadline,

36✔

779

0,

36✔

780

                    tokenArgs.tokenIndexTo,

36✔

781

                    minToSwapDestFromOriginHighSlippage, // swapMinAmount

36✔

782

                    bridgeTransactionDeadline, // toSwapDeadline, // swapDeadline

36✔

783

                    swapETH ? BridgeUtils.overrides(amountFrom) : {}

36✔

784

36✔

785

36✔

786

118✔

787

            switch (tokenSwitch(args.tokenTo)) {

118✔

788

                case Tokens.NUSD:

118✔

789

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

18✔

790

                        return zapBridge

4✔

791

                            .populateTransaction

4✔

792

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

4✔

793

4✔

794

14✔

795

                    return zapBridge

14✔

796

                        .populateTransaction

14✔

797

                        .swapAndRedeem(

14✔

798

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

14✔

799

                            tokenArgs.tokenIndexFrom,

14✔

800

0,

14✔

801

                            amountFrom,

14✔

802

                            minToSwapOriginHighSlippage,

14✔

803

                            transactionDeadline

14✔

804

14✔

805

                case Tokens.GMX:

118✔

806

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

4✔

807

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

4✔

808

4✔

809

                    return this.chainId === ChainId.ARBITRUM

4✔

810

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

4✔

811

                        : this.bridgeInstance

4✔

812

                            .populateTransaction

2✔

813

                            .redeem(

2✔

814

                                addrTo,

2✔

815

                                chainTo,

2✔

816

                                Tokens.GMX.wrapperAddress(this.chainId),

2✔

817

                                amount

2✔

818

4✔

819

                default:

118✔

820

                    if (chainIdTo === ChainId.ETH) {

64✔

821

                        if (this.isL2ETHChain) {

22✔

822

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

18✔

823

                                return zapBridge

6✔

824

                                    .populateTransaction

6✔

825

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

6✔

826

6✔

827

12✔

828

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

12✔

829

                            return easySwapAndRedeem(Tokens.NETH, useSwapETH)

12✔

830

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

18✔

831

                            return zapBridge

2✔

832

                                .populateTransaction

2✔

833

                                .redeemAndRemove(

2✔

834

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

2✔

835

                                    amountFrom,

2✔

836

                                    tokenArgs.tokenIndexTo,

2✔

837

                                    minToSwapDest,

2✔

838

                                    transactionDeadline

2✔

839

2✔

840

2✔

841

2✔

842

                        return zapBridge

2✔

843

                            .populateTransaction

2✔

844

                            .swapAndRedeemAndRemove(

2✔

845

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

2✔

846

                                tokenArgs.tokenIndexFrom,

2✔

847

0,

2✔

848

                                amountFrom,

2✔

849

                                minToSwapOriginHighSlippage,

2✔

850

                                transactionDeadline,

2✔

851

                                tokenArgs.tokenIndexTo, //swapTokenIndex

2✔

852

                                minToSwapDestFromOriginHighSlippage, // swapMinAmount

2✔

853

                                bridgeTransactionDeadline, // toSwapDeadline, // swapDeadline

2✔

854

2✔

855

2✔

856

42✔

857

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

64✔

858

                        return easyRedeemAndSwap(args.tokenFrom)

6✔

859

6✔

860

36✔

861

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

58✔

862

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

24✔

863

                        return easySwapAndRedeemAndSwap(Tokens.NETH, useSwapETH)

24✔

864

24✔

865

12✔

866

                    return easySwapAndRedeemAndSwap(Tokens.NUSD)

12✔

867

118✔

868

118✔

869

12✔

870

        private buildTerraBridgeTxn({

12✔

871

            addressTo,

6✔

872

            chainIdTo,

6✔

873

            amountFrom

6✔

874

        }: BridgeTransactionParams): Promise<MsgExecuteContract> {

6✔

875

            return Promise.resolve(new MsgExecuteContract(

6✔

876

                null,

6✔

877

                this.bridgeAddress,

6✔

878

6✔

879

                    deposit: {

6✔

880

                        to_address: toLower(addressTo),

6✔

881

                        chain_id:  `${chainIdTo}`,

6✔

882

                        denom:     "uusd"

6✔

883

6✔

884

},

6✔

885

                { uusd: amountFrom.toNumber() }

6✔

886

))

6✔

887

6✔

888

12✔

889

        private makeBridgeTokenArgs(args: BridgeParams): BridgeTokenArgs {

12✔

890

            let {tokenFrom, tokenTo, chainIdTo} = args;

364✔

891

364✔

892

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

364✔

893

364✔

894

            switch (tokenFrom.swapType) {

364✔

895

                case SwapType.ETH:

364✔

896

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

132✔

897

                    break;

132✔

898

                case SwapType.AVAX:

364✔

899

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

8✔

900

                    break;

8✔

901

                case SwapType.MOVR:

364✔

902

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

8✔

903

                    break;

8✔

904

                default:

364✔

905

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

216✔

906

364✔

907

364✔

908

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

364✔

909

364✔

910

            const

364✔

911

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

364✔

912

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

364✔

913

364✔

914

            return {

364✔

915

                fromChainTokens,

364✔

916

                toChainTokens,

364✔

917

                tokenFrom,

364✔

918

                tokenTo,

364✔

919

                tokenIndexFrom,

364✔

920

                tokenIndexTo

364✔

921

364✔

922

364✔

923

12✔

924

        private checkEasyArgs(

12✔

925

            args: BridgeTransactionParams,

160✔

926

            zapBridge: GenericZapBridgeContract,

160✔

927

            easyDeposits:    ID[],

160✔

928

            easyRedeems:     ID[],

160✔

929

            easyDepositETH?: ID[],

160✔

930

        ): EasyArgsCheck {

160✔

931

let

160✔

932

                castArgs = args as BridgeUtils.BridgeTxParams,

160✔

933

                isEasy: boolean = false,

160✔

934

                txn:    Promise<PopulatedTransaction>;

160✔

935

160✔

936

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

160✔

937

160✔

938

            switch (true) {

160✔

939

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

160✔

940

                    isEasy = true;

18✔

941

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

18✔

942

                    break;

18✔

943

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

160✔

944

                    isEasy = true;

8✔

945

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

8✔

946

                    break;

8✔

947

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

160✔

948

                    isEasy = true;

12✔

949

                    txn    =  zapBridge

12✔

950

                        .populateTransaction

12✔

951

                        .depositETH(

12✔

952

                            ...BridgeUtils.depositETHParams(castArgs),

12✔

953

                            BridgeUtils.overrides(args.amountFrom)

12✔

954

);

12✔

955

                    break;

12✔

956

160✔

957

160✔

958

            return {castArgs, isEasy, txn}

160✔

959

160✔

960

12✔

961

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

12✔

962

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

194✔

963

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

194✔

964

                if (!swapSupported) {

194✔

965

                    reject(errReason);

10✔

966

                    return

10✔

967

10✔

968

184✔

969

                resolve(true);

184✔

970

})

194✔

971

194✔

972

12✔

973

        private buildERC20ApproveArgs(args: {

12✔

974

            token:   Token | string,

188✔

975

            amount?: BigNumberish

188✔

976

        }): [ERC20.ApproveArgs, string] {

188✔

977

            const {token, amount} = args;

188✔

978

188✔

979

            let tokenAddr: string = instanceOfToken(token)

188✔

980

                ? token.address(this.chainId)

188✔

982

188✔

983

            let spender: string;

188✔

984

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

188✔

985

                spender = this.bridgeAddress;

24✔

986

            } else {

188✔

987

                spender = this.zapBridgeAddress;

164✔

988

164✔

989

188✔

990

            return [{

188✔

991

                spender,

188✔

992

                amount

188✔

993

            }, tokenAddr]

188✔

994

188✔

995

12✔

996

        async getAllowanceForAddress(args: {

12✔

997

            address: string,

10✔

998

            token:   Token,

10✔

999

        }): Promise<BigNumber> {

10✔

1000

            let { address, token } = args;

10✔

1001

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

10✔

1002

10✔

1003

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

10✔

1004

10✔

1005

12✔

1006

        private static async resolveApproveFunc(

12✔

1007

            approveRes:    CheckCanBridgeResult,

12✔

1008

            hasBalanceRes: Promise<CanBridgeResult>,

12✔

1009

            token:         Token

12✔

1010

        ): Promise<CanBridgeResult> {

12✔

1011

            const [needsApprove, allowance] = approveRes;

12✔

1012

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

12✔

1013

12✔

1014

            return needsApprove

12✔

1016

                : hasBalanceRes

12✔

1017

12✔

1018

12✔

1019

        private async checkNeedsApprove({

12✔

1020

            address,

12✔

1021

            token,

12✔

1022

            amount=MAX_APPROVAL_AMOUNT.sub(1)

12✔

1023

        }: CheckCanBridgeParams): Promise<CheckCanBridgeResult> {

12✔

1024

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

12✔

1025

12✔

1026

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

12✔

1027

                .then(allowance => [allowance.lt(amount), allowance] as CheckCanBridgeResult)

12✔

1028

12✔

1029

12✔

1030

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

12✔

1031

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

14✔

1032

14✔

1033

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

14✔

1035

                /* c8 ignore next */

2✔

1036

                balanceFn = signer.getBalance;

2✔

1037

            } else if (address) {

14✔

1038

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

14✔

1039

14✔

1040

14✔

1041

            return this.resolveBalanceFunc(

14✔

1042

                balanceFn(),

14✔

1043

                amount,

14✔

1044

                token

14✔

1045

14✔

1046

14✔

1047

12✔

1048

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

12✔

1049

            const

12✔

1050

                {address, amount, token} = args,

12✔

1051

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

12✔

1052

12✔

1053

            return this.resolveBalanceFunc(

12✔

1054

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

12✔

1055

                amount,

12✔

1056

                token

12✔

1057

12✔

1058

12✔

1059

12✔

1060

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

12✔

1061

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

4✔

1062

                .then(([res]) => {

4✔

1063

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

4✔

1064

4✔

1065

                    let ustBalance: BigNumber = Zero;

4✔

1066

4✔

1067

                    if (coin) {

4✔

1068

                        const {amount} = coin.toData();

4✔

1069

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

4✔

1070

                            ustBalance = BigNumber.from(amount);

4✔

1071

4✔

1072

4✔

1073

4✔

1074

                    return ustBalance

4✔

1075

})

4✔

1076

4✔

1077

            return this.resolveBalanceFunc(

4✔

1078

                balProm,

4✔

1079

                amount,

4✔

1080

                token

4✔

1081

4✔

1082

4✔

1083

12✔

1084

        private async resolveBalanceFunc(

12✔

1085

            prom:   Promise<BigNumber>,

30✔

1086

            amount: BigNumberish,

30✔

1087

            token:  Token

30✔

1088

        ): Promise<CanBridgeResult> {

30✔

1089

            return Promise.resolve(prom)

30✔

1090

                .then(balance => {

30✔

1091

                    const hasBalance = balance.gte(amount);

30✔

1092

30✔

1093

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

30✔

1094

30✔

1095

                    return hasBalance

30✔

1096

                        ? {canBridge: true}

30✔

1097

                        : {canBridge: false, error: new Error(errMsg), amount: balance}

30✔

1098

})

30✔

1099

                .catch(rejectPromise)

30✔

1100

30✔

1101

12✔

1102

12✔

1103

    const REQUIRED_CONFS: NumberMap = {

12✔

1104

        [ChainId.ETH]:       7,

12✔

1105

        [ChainId.OPTIMISM]:  1,

12✔

1106

        [ChainId.CRONOS]:    6,

12✔

1107

        [ChainId.BSC]:       14,

12✔

1108

        [ChainId.POLYGON]:   128,

12✔

1109

        [ChainId.FANTOM]:    5,

12✔

1110

        [ChainId.BOBA]:      1,

12✔

1111

        [ChainId.METIS]:     6,

12✔

1112

        [ChainId.MOONBEAM]:  21,

12✔

1113

        [ChainId.MOONRIVER]: 21,

12✔

1114

        [ChainId.ARBITRUM]:  40,

12✔

1115

        [ChainId.AVALANCHE]: 5,

12✔

1116

        [ChainId.TERRA]:     1,

12✔

1117

        [ChainId.AURORA]:    5,

12✔

1118

        [ChainId.HARMONY]:   1,

12✔

1119

};

12✔

1120

12✔

1121

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

12✔

1123

684✔

1125

684✔

1126

12✔

1127

    /* c8 ignore next */

2✔

1128

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

2✔

1129

        return TokenSwap.bridgeSwapSupported(args)

310✔

1130

310✔

1131

12✔

synapsecns / sdk / 1964208807

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synapsecns / sdk / 1964208807

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