@funded-labs/dab-js
Version:
JS adapter for DAB
97 lines (96 loc) • 4.62 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
/* eslint-disable @typescript-eslint/camelcase */
const principal_1 = require("@dfinity/principal");
const agent_1 = require("@dfinity/agent");
const methods_1 = require("./methods");
const account_1 = require("../../utils/account");
const validations_1 = require("../../utils/validations");
const registries_1 = require("../../registries");
const getMetadata = (_actor) => __awaiter(void 0, void 0, void 0, function* () {
var _a, _b, _c;
const agent = agent_1.Actor.agentOf(_actor);
try {
const tokenRegistry = new registries_1.TokenRegistry(agent);
const token = yield tokenRegistry.get(agent_1.Actor.canisterIdOf(_actor).toString());
const { fee = 0.002, decimals = 8 } = (token === null || token === void 0 ? void 0 : token.details) || {};
const numberFee = Number((_a = fee === null || fee === void 0 ? void 0 : fee.toString) === null || _a === void 0 ? void 0 : _a.call(fee));
const numberDecimals = Number((_b = decimals === null || decimals === void 0 ? void 0 : decimals.toString) === null || _b === void 0 ? void 0 : _b.call(decimals));
const parsedFee = numberFee * Math.pow(10, numberDecimals);
return {
fungible: {
symbol: ((_c = token === null || token === void 0 ? void 0 : token.details) === null || _c === void 0 ? void 0 : _c.symbol) || 'ICP',
name: (token === null || token === void 0 ? void 0 : token.name) || 'ICP',
decimals: numberDecimals,
fee: parsedFee,
},
};
}
catch (e) {
console.error('Error while fetching token metadata, falling back to default values', e);
// Fallback to default ICP values when dab is unavailable
return {
fungible: {
symbol: 'ICP',
name: 'ICP',
decimals: 8,
fee: 10000,
},
};
}
});
const send = (actor, { to, amount, opts }) => __awaiter(void 0, void 0, void 0, function* () {
const metadata = yield getMetadata(actor);
const { fee = 0.002, decimals = BigInt(8) } = (metadata === null || metadata === void 0 ? void 0 : metadata.fungible) || {};
const defaultArgs = {
fee: BigInt(fee * Math.pow(10, parseInt(decimals.toString(), 10))),
memo: BigInt(0),
};
const response = yield actor._send_dfx({
to: (0, validations_1.validatePrincipalId)(to) ? (0, account_1.getAccountId)(principal_1.Principal.fromText(to)) : to,
fee: { e8s: (opts === null || opts === void 0 ? void 0 : opts.fee) || defaultArgs.fee },
amount: { e8s: amount },
memo: (opts === null || opts === void 0 ? void 0 : opts.memo) ? BigInt(opts.memo) : defaultArgs.memo,
from_subaccount: [],
created_at_time: [],
});
return { height: yield response.toString() };
});
const getBalance = (actor, user) => __awaiter(void 0, void 0, void 0, function* () {
try {
const account = (0, account_1.getAccountId)(user);
const balance = yield actor._account_balance_dfx({ account });
return { value: balance.e8s.toString(), decimals: 8 };
}
catch (e) {
return {
value: 'Error',
decimals: 8,
error: 'Error while fetching your balance',
};
}
});
const burnXTC = (_actor, _params) => __awaiter(void 0, void 0, void 0, function* () {
throw new Error('BURN NOT SUPPORTED');
});
const approve = (_actor, _params) => __awaiter(void 0, void 0, void 0, function* () {
throw new Error('APPROVE NOT SUPPORTED');
});
const getDecimals = (actor) => __awaiter(void 0, void 0, void 0, function* () { return (0, methods_1.getDecimalsFromMetadata)(yield getMetadata(actor)); });
exports.default = {
send,
getMetadata,
getBalance,
burnXTC,
getDecimals,
approve,
};