rubic-sdk
Version:
Simplify dApp creation
109 lines • 5.42 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.UniswapV2AbstractProvider = void 0;
const tokens_1 = require("../../../../../../../common/tokens");
const options_1 = require("../../../../../../../common/utils/options");
const evm_web3_pure_1 = require("../../../../../../../core/blockchain/web3-pure/typed-web3-pure/evm-web3-pure/evm-web3-pure");
const token_native_address_proxy_1 = require("../../../../../../common/utils/token-native-address-proxy");
const get_gas_fee_info_1 = require("../../../common/utils/get-gas-fee-info");
const evm_provider_default_options_1 = require("../on-chain-provider/evm-on-chain-provider/constants/evm-provider-default-options");
const evm_on_chain_provider_1 = require("../on-chain-provider/evm-on-chain-provider/evm-on-chain-provider");
const path_factory_1 = require("./path-factory");
const get_from_to_tokens_amounts_by_exact_1 = require("../utils/get-from-to-tokens-amounts-by-exact");
class UniswapV2AbstractProvider extends evm_on_chain_provider_1.EvmOnChainProvider {
constructor() {
super(...arguments);
this.defaultOptions = {
...evm_provider_default_options_1.evmProviderDefaultOptions,
deadlineMinutes: 20,
disableMultihops: false
};
}
get type() {
return this.UniswapV2TradeClass.type;
}
async calculate(from, to, options) {
return this.calculateDifficultTrade(from, to, from.weiAmount, 'input', options);
}
/**
* Calculates trade, based on amount, user wants to get.
* @param from Token to sell.
* @param to Token to get with output amount.
* @param options Additional options.
*/
async calculateExactOutput(from, to, options) {
return this.calculateDifficultTrade(from, to, to.weiAmount, 'output', options);
}
/**
* Calculates input amount, based on amount, user wants to get.
* @param from Token to sell.
* @param to Token to get with output amount.
* @param options Additional options.
*/
async calculateExactOutputAmount(from, to, options) {
return (await this.calculateExactOutput(from, to, options)).from.tokenAmount;
}
/**
* Calculates on-chain trade.
* @param fromToken Token to sell.
* @param toToken Token to get.
* @param weiAmount Amount to sell or to get in wei.
* @param exact Defines, whether to call 'exactInput' or 'exactOutput' method.
* @param options Additional options.
*/
async calculateDifficultTrade(fromToken, toToken, weiAmount, exact, options) {
const fullOptions = (0, options_1.combineOptions)(options, this.defaultOptions);
let weiAmountWithoutFee = weiAmount;
let proxyFeeInfo;
if (fullOptions.useProxy) {
const proxyContractInfo = await this.handleProxyContract(new tokens_1.PriceTokenAmount({
...fromToken.asStruct,
weiAmount
}), fullOptions);
weiAmountWithoutFee = proxyContractInfo.fromWithoutFee.weiAmount;
proxyFeeInfo = proxyContractInfo.proxyFeeInfo;
}
const fromProxy = (0, token_native_address_proxy_1.createTokenNativeAddressProxy)(fromToken, this.providerSettings.wethAddress);
const toProxy = (0, token_native_address_proxy_1.createTokenNativeAddressProxy)(toToken, this.providerSettings.wethAddress);
let gasPriceInfo;
if (fullOptions.gasCalculation !== 'disabled') {
gasPriceInfo = await this.getGasPriceInfo();
}
const { route, estimatedGas } = await this.getAmountAndPath(fromProxy, toProxy, weiAmountWithoutFee, exact, fullOptions, proxyFeeInfo, gasPriceInfo?.gasPriceInUsd);
const { from, to, fromWithoutFee } = (0, get_from_to_tokens_amounts_by_exact_1.getFromToTokensAmountsByExact)(fromToken, toToken, exact, weiAmount, weiAmountWithoutFee, route.outputAbsoluteAmount);
const wrappedPath = route.path;
const path = (0, token_native_address_proxy_1.createTokenNativeAddressProxyInPathStartAndEnd)(wrappedPath, evm_web3_pure_1.EvmWeb3Pure.nativeTokenAddress);
const tradeStruct = {
from,
to,
exact,
path,
wrappedPath,
deadlineMinutes: fullOptions.deadlineMinutes,
slippageTolerance: fullOptions.slippageTolerance,
gasFeeInfo: null,
useProxy: fullOptions.useProxy,
proxyFeeInfo,
fromWithoutFee,
withDeflation: fullOptions.withDeflation
};
if (fullOptions.gasCalculation === 'disabled') {
return new this.UniswapV2TradeClass(tradeStruct, fullOptions.providerAddress);
}
const gasFeeInfo = (0, get_gas_fee_info_1.getGasFeeInfo)(estimatedGas, gasPriceInfo);
return new this.UniswapV2TradeClass({ ...tradeStruct, gasFeeInfo }, fullOptions.providerAddress);
}
async getAmountAndPath(from, to, weiAmount, exact, options, proxyFeeInfo, gasPriceInUsd) {
const pathFactory = new path_factory_1.PathFactory(this, {
from,
to,
weiAmount,
exact,
options,
proxyFeeInfo
});
return pathFactory.getAmountAndPath(gasPriceInUsd);
}
}
exports.UniswapV2AbstractProvider = UniswapV2AbstractProvider;
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