olympus-protocol-connector/lib/derivatives/partials/fund/FundTrade.js

Module made by Olympus Labs for easier access to the Olympus protocol through Javascript/Typescript

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
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            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
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                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
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            op = body.call(thisArg, _);
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        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
Object.defineProperty(exports, "__esModule", { value: true });
var Service_1 = require("../../../Service");
var Promisify_1 = require("../../../utils/Promisify");
var _ = require("lodash");
var Enums_1 = require("../../../interfaces/Enums");
var ExchangeService_1 = require("../../../services/providers/exchange/ExchangeService");
var Derivative_1 = require("../../Derivative");
var config_1 = require("../../../config");
var Fund_1 = require("../../abi/Fund");
var FundTradeService = /** @class */ (function (_super) {
    __extends(FundTradeService, _super);
    function FundTradeService(address, exchangeService, abi) {
        if (abi === void 0) { abi = Fund_1.FUND_ABI; }
        var _this = _super.call(this, address, abi, Enums_1.AbiName.FUND_ABI) || this;
        _this.exchangeService = exchangeService;
        return _this;
    }
    FundTradeService.create = function (productAddress) {
        return __awaiter(this, void 0, void 0, function () {
            var derivative, exchangeAddress, exchangeService;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        derivative = new Derivative_1.DerivativeService(productAddress);
                        return [4 /*yield*/, derivative.getComponentAddress(Enums_1.DerivativeProviders.EXCHANGE)];
                    case 1:
                        exchangeAddress = _a.sent();
                        return [4 /*yield*/, ExchangeService_1.ExchangeService.create(exchangeAddress)];
                    case 2:
                        exchangeService = _a.sent();
                        return [2 /*return*/, new FundTradeService(productAddress, exchangeService)];
                }
            });
        });
    };
    FundTradeService.prototype.buyTokensWithPercentage = function (tokenAddresses, percentages, ethAmount, gasPrice) {
        return __awaiter(this, void 0, void 0, function () {
            var amounts;
            var _this = this;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        amounts = percentages.map(function (percentage) {
                            return _this.rpcService.toWei((percentage / 100) * ethAmount, 'ether');
                        });
                        return [4 /*yield*/, this.buyTokens(tokenAddresses, amounts, gasPrice)];
                    case 1: return [2 /*return*/, _a.sent()];
                }
            });
        });
    };
    FundTradeService.prototype.buyTokensWithPercentageGas = function (tokensAddresses, percentages, ethAmount) {
        return __awaiter(this, void 0, void 0, function () {
            var amounts;
            var _this = this;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        amounts = percentages.map(function (percentage) {
                            return parseInt(_this.rpcService.toWei((percentage / 100) * ethAmount, 'ether'), 10);
                        });
                        return [4 /*yield*/, this.calculateBuyGas(tokensAddresses, amounts)];
                    case 1: return [2 /*return*/, _a.sent()];
                }
            });
        });
    };
    FundTradeService.prototype.buyTokens = function (tokensAddresses, amounts, gasPrice) {
        return __awaiter(this, void 0, void 0, function () {
            var rates, data, gasLimit, tx;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.exchangeService.getBuyRates(tokensAddresses, amounts)];
                    case 1:
                        rates = (_a.sent()).map(function (rate) { return rate.slippagePrice; });
                        data = this.contract.buyTokens.getData(0x0, tokensAddresses, amounts, rates);
                        return [4 /*yield*/, this.calculateBuyGas(tokensAddresses, amounts)];
                    case 2:
                        gasLimit = _a.sent();
                        return [4 /*yield*/, this.rpcService.buildTx({
                                to: this.address,
                                data: data, gasLimit: gasLimit,
                                gasPrice: gasPrice,
                                caller: 'FundTrade.buyTokens',
                                description: 'Buy tokens [' + tokensAddresses.join(',') + ']',
                            })];
                    case 3:
                        tx = _a.sent();
                        return [2 /*return*/, tx];
                }
            });
        });
    };
    FundTradeService.prototype.calculateBuyGas = function (tokensAddresses, amounts) {
        return __awaiter(this, void 0, void 0, function () {
            var gasLimit, txEnvelop_1, dummyRates_1, e_1;
            var _this = this;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (tokensAddresses.length === 0 || amounts.length === 0 || _.sum(amounts) === 0) {
                            return [2 /*return*/, config_1.default.gasLimit];
                        }
                        _a.label = 1;
                    case 1:
                        _a.trys.push([1, 3, , 4]);
                        txEnvelop_1 = { from: this.rpcService.MainAddress, value: 0, to: this.contract.address };
                        dummyRates_1 = amounts.map(function (_amount) { return 0; });
                        return [4 /*yield*/, Promisify_1.Promisify(function (callback) {
                                return _this.contract.buyTokens.estimateGas(0x0, tokensAddresses, amounts, dummyRates_1, txEnvelop_1, callback);
                            })];
                    case 2:
                        gasLimit = _a.sent();
                        return [3 /*break*/, 4];
                    case 3:
                        e_1 = _a.sent();
                        gasLimit = config_1.default.gasLimit;
                        return [3 /*break*/, 4];
                    case 4: return [2 /*return*/, Math.round(gasLimit * config_1.default.gasMargin)];
                }
            });
        });
    };
    FundTradeService.prototype.sellTokens = function (tokensAddresses, amounts, gasPrice) {
        return __awaiter(this, void 0, void 0, function () {
            var rates, gasLimit, data, tx;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.exchangeService.getSellRates(tokensAddresses, amounts)];
                    case 1:
                        rates = (_a.sent()).map(function (rate) { return rate.slippagePrice; });
                        return [4 /*yield*/, this.calculateSellGas(tokensAddresses, amounts)];
                    case 2:
                        gasLimit = _a.sent();
                        data = this.contract.sellTokens.getData(0x0, tokensAddresses, amounts, rates);
                        return [4 /*yield*/, this.rpcService.buildTx({
                                to: this.address,
                                data: data,
                                gasPrice: gasPrice,
                                gasLimit: gasLimit,
                                caller: 'FundTrade.sellTokens',
                                description: 'Sell tokens [' + tokensAddresses.join(',') + ']',
                            })];
                    case 3:
                        tx = _a.sent();
                        return [2 /*return*/, tx];
                }
            });
        });
    };
    FundTradeService.prototype.calculateSellGas = function (tokensAddresses, amounts) {
        return __awaiter(this, void 0, void 0, function () {
            var gasLimit, dummyRates, txEnvelop_2, e_2;
            var _this = this;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        dummyRates = amounts.map(function (_amount) { return 0; });
                        if (tokensAddresses.length === 0 || amounts.length === 0 || _.sum(amounts) === 0) {
                            return [2 /*return*/, config_1.default.gasLimit];
                        }
                        _a.label = 1;
                    case 1:
                        _a.trys.push([1, 3, , 4]);
                        txEnvelop_2 = { from: this.rpcService.MainAddress, value: 0, to: this.contract.address };
                        return [4 /*yield*/, Promisify_1.Promisify(function (callback) {
                                return _this.contract.sellTokens.estimateGas(0x0, tokensAddresses, amounts, dummyRates, txEnvelop_2, callback);
                            })];
                    case 2:
                        gasLimit = _a.sent();
                        return [3 /*break*/, 4];
                    case 3:
                        e_2 = _a.sent();
                        gasLimit = config_1.default.gasLimit;
                        return [3 /*break*/, 4];
                    case 4: return [2 /*return*/, Math.round(gasLimit * config_1.default.gasMargin)];
                }
            });
        });
    };
    return FundTradeService;
}(Service_1.Service));
exports.FundTradeService = FundTradeService;
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