hector-rubic-sdk
Version:
Simplify dApp creation
278 lines • 16.4 kB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.PathFactory = void 0;
var insufficient_liquidity_error_1 = require("../../../../../common/errors/swap/insufficient-liquidity.error");
var object_1 = require("../../../../../common/utils/object");
var price_token_amount_1 = require("../../../../../core/blockchain/tokens/price-token-amount");
var token_1 = require("../../../../../core/blockchain/tokens/token");
var web3_pure_1 = require("../../../../../core/blockchain/web3-pure/web3-pure");
var injector_1 = require("../../../../../core/sdk/injector");
var bignumber_js_1 = __importDefault(require("bignumber.js"));
var common_1 = require("../../../../../common");
var type_guards_1 = require("../../../utils/type-guards");
var PathFactory = /** @class */ (function () {
function PathFactory(uniswapProviderStruct, pathFactoryStruct) {
this.web3Public = injector_1.Injector.web3PublicService.getWeb3Public(pathFactoryStruct.from.blockchain);
this.from = pathFactoryStruct.from;
this.to = pathFactoryStruct.to;
this.weiAmount = pathFactoryStruct.weiAmount;
this.exact = pathFactoryStruct.exact;
this.options = pathFactoryStruct.options;
this.InstantTradeClass = uniswapProviderStruct.InstantTradeClass;
this.routingProvidersAddresses =
uniswapProviderStruct.providerSettings.routingProvidersAddresses;
this.maxTransitTokens = pathFactoryStruct.options.disableMultihops
? 0
: uniswapProviderStruct.providerSettings.maxTransitTokens;
}
Object.defineProperty(PathFactory.prototype, "walletAddress", {
get: function () {
return injector_1.Injector.web3Private.address;
},
enumerable: false,
configurable: true
});
Object.defineProperty(PathFactory.prototype, "stringWeiAmount", {
get: function () {
return this.weiAmount.toFixed(0);
},
enumerable: false,
configurable: true
});
PathFactory.prototype.getAmountAndPath = function (gasPriceInUsd) {
var _a;
return __awaiter(this, void 0, void 0, function () {
var routes, gasLimits_1, estimatedGasLimits, routesWithProfit, sortedByProfitRoutes, gasLimit, callData, estimatedGas;
var _this = this;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, this.getAllRoutes()];
case 1:
routes = (_b.sent()).sort(function (a, b) {
return b.outputAbsoluteAmount.comparedTo(a.outputAbsoluteAmount) *
(_this.exact === 'input' ? 1 : -1);
});
if (routes.length === 0) {
throw new insufficient_liquidity_error_1.InsufficientLiquidityError();
}
if (this.options.gasCalculation === 'disabled') {
if (!(0, type_guards_1.hasLengthAtLeast)(routes, 1)) {
throw new Error('[RUBIC SDK] Routes array length has to be bigger than 0');
}
return [2 /*return*/, {
route: routes[0]
}];
}
if (!(this.options.gasCalculation === 'rubicOptimisation' &&
((_a = this.to.price) === null || _a === void 0 ? void 0 : _a.isFinite()) &&
gasPriceInUsd)) return [3 /*break*/, 4];
gasLimits_1 = this.getDefaultGases(routes);
if (!this.walletAddress) return [3 /*break*/, 3];
return [4 /*yield*/, this.web3Public.batchEstimatedGas(this.InstantTradeClass.contractAbi, this.InstantTradeClass.getContractAddress(this.from.blockchain), this.walletAddress, this.getGasRequests(routes))];
case 2:
estimatedGasLimits = _b.sent();
estimatedGasLimits.forEach(function (elem, index) {
if (elem === null || elem === void 0 ? void 0 : elem.isFinite()) {
gasLimits_1[index] = elem;
}
});
_b.label = 3;
case 3:
routesWithProfit = routes.map(function (route, index) {
var estimatedGas = gasLimits_1[index];
if (!estimatedGas) {
throw new Error('[RUBIC SDK] Estimated gas has to be defined.');
}
var gasFeeInUsd = estimatedGas.multipliedBy(gasPriceInUsd);
var profit;
if (_this.exact === 'input') {
profit = web3_pure_1.Web3Pure.fromWei(route.outputAbsoluteAmount, _this.to.decimals)
.multipliedBy(_this.to.price)
.minus(gasFeeInUsd);
}
else {
profit = web3_pure_1.Web3Pure.fromWei(route.outputAbsoluteAmount, _this.from.decimals)
.multipliedBy(_this.from.price)
.multipliedBy(-1)
.minus(gasFeeInUsd);
}
return {
route: route,
estimatedGas: estimatedGas,
profit: profit
};
});
sortedByProfitRoutes = routesWithProfit.sort(function (a, b) {
return b.profit.comparedTo(a.profit);
});
if (!(sortedByProfitRoutes === null || sortedByProfitRoutes === void 0 ? void 0 : sortedByProfitRoutes[0])) {
throw new Error('[RUBIC SDK] Profit routes array length has to be bigger than 0.');
}
return [2 /*return*/, sortedByProfitRoutes[0]];
case 4:
gasLimit = this.getDefaultGases(routes.slice(0, 1))[0];
if (!this.walletAddress) return [3 /*break*/, 6];
callData = this.getGasRequests(routes.slice(0, 1))[0];
if (!callData) {
throw new Error('[RUBIC SDK] Call data has to be defined.');
}
return [4 /*yield*/, this.web3Public.getEstimatedGas(this.InstantTradeClass.contractAbi, this.InstantTradeClass.getContractAddress(this.from.blockchain), callData.contractMethod, callData.params, this.walletAddress, callData.value)];
case 5:
estimatedGas = _b.sent();
if (estimatedGas === null || estimatedGas === void 0 ? void 0 : estimatedGas.isFinite()) {
gasLimit = estimatedGas;
}
_b.label = 6;
case 6:
if (!(routes === null || routes === void 0 ? void 0 : routes[0])) {
throw new Error('[RUBIC SDK] Routes length has to be bigger than 0.');
}
return [2 /*return*/, {
route: routes[0],
estimatedGas: gasLimit
}];
}
});
});
};
PathFactory.prototype.getGasRequests = function (routes) {
return this.getTradesByRoutes(routes).map(function (trade) { return trade.getEstimatedGasCallData(); });
};
PathFactory.prototype.getDefaultGases = function (routes) {
return this.getTradesByRoutes(routes).map(function (trade) { return trade.getDefaultEstimatedGas(); });
};
PathFactory.prototype.getTradesByRoutes = function (routes) {
var _this = this;
return routes.map(function (route) {
var fromAmount = _this.exact === 'input' ? _this.weiAmount : route.outputAbsoluteAmount;
var toAmount = _this.exact === 'output' ? _this.weiAmount : route.outputAbsoluteAmount;
return new _this.InstantTradeClass({
from: new price_token_amount_1.PriceTokenAmount(__assign(__assign({}, _this.from.asStruct), { weiAmount: fromAmount })),
to: new price_token_amount_1.PriceTokenAmount(__assign(__assign({}, _this.to.asStruct), { weiAmount: toAmount })),
wrappedPath: route.path,
exact: _this.exact,
deadlineMinutes: _this.options.deadlineMinutes,
slippageTolerance: _this.options.slippageTolerance
});
});
};
PathFactory.prototype.getAllRoutes = function () {
return __awaiter(this, void 0, void 0, function () {
var transitTokens, vertexes, initialPath, routesPaths, routesMethodArguments, recGraphVisitor, i, responses, tokens;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, token_1.Token.createTokens(this.routingProvidersAddresses, this.from.blockchain)];
case 1:
transitTokens = _a.sent();
vertexes = transitTokens.filter(function (elem) { return !elem.isEqualTo(_this.from) && !elem.isEqualTo(_this.to); });
initialPath = [this.from];
routesPaths = [];
routesMethodArguments = [];
recGraphVisitor = function (path, transitTokensLimit) {
if (path.length === transitTokensLimit + 1) {
var finalPath = path.concat(_this.to);
routesPaths.push(finalPath);
routesMethodArguments.push([
_this.stringWeiAmount,
token_1.Token.tokensToAddresses(finalPath)
]);
return;
}
vertexes
.filter(function (vertex) { return path.every(function (token) { return !token.isEqualTo(vertex); }); })
.forEach(function (vertex) {
var extendedPath = path.concat(vertex);
recGraphVisitor(extendedPath, transitTokensLimit);
});
};
for (i = 0; i <= this.maxTransitTokens; i++) {
recGraphVisitor(initialPath, i);
}
return [4 /*yield*/, this.InstantTradeClass.callForRoutes(this.from.blockchain, this.exact, routesMethodArguments)];
case 2:
responses = _a.sent();
tokens = responses.map(function (response, index) {
if (!response.success || !response.output) {
return null;
}
var amounts = response.output.amounts;
var numberAmount = _this.exact === 'input' ? amounts[amounts.length - 1] : amounts[0];
if (!numberAmount) {
throw new Error('[RUBIC SDK] Amount has to be defined.');
}
var outputAbsoluteAmount = new bignumber_js_1.default(numberAmount);
var path = routesPaths === null || routesPaths === void 0 ? void 0 : routesPaths[index];
if (!path) {
throw new Error('[RUBIC SDK] Path has to be defined.');
}
return { outputAbsoluteAmount: outputAbsoluteAmount, path: path };
});
return [2 /*return*/, tokens.filter(object_1.notNull)];
}
});
});
};
__decorate([
common_1.Cache
], PathFactory.prototype, "stringWeiAmount", null);
return PathFactory;
}());
exports.PathFactory = PathFactory;
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