@open-rights-exchange/orejs
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Orejs is a Javascript helper library to provide simple high-level access to the ore-protocol. Orejs uses eosJS as a wrapper to the EOS blockchain.
208 lines • 9.59 kB
JavaScript
"use strict";
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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());
});
};
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) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var INSTR_CONTRACT_NAME = 'instr.ore';
var INSTR_TABLE_NAME = 'tokens';
/* Private */
// NOTE: if the endTime is 0, the instrument is valid forever
function isActive(instrument) {
var startTime = instrument.start_time;
var endTime = instrument.end_time;
var currentTime = Math.floor(Date.now() / 1000);
return (currentTime > startTime && (currentTime < endTime || endTime === 0));
}
function hasCategory(instrument, category) {
if (instrument.instrument.instrument_class === category) {
return true;
}
return false;
}
function sortByMintedAt(instruments) {
// sorts the instruments by minted_at property
// minted_at represents the time when the instrument is either minted or updated
instruments.sort(function (a, b) { return a.instrument.minted_at - b.instrument.minted_at; });
return instruments;
}
function sortByCheapestRight(instruments, rightName) {
var _this = this;
// sorts the instruments by the price for the right
instruments.sort(function (a, b) {
var rightA = _this.getRight(a, rightName);
var rightB = _this.getRight(b, rightName);
return rightA.price_in_cpu - rightB.price_in_cpu;
});
return instruments;
}
function getInstruments(params) {
return __awaiter(this, void 0, void 0, function () {
var keyType, index, results, lowerBound, upperBound, limit, parameters;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
results = [];
lowerBound = 0;
upperBound = -1;
limit = -1;
if (params.key_name === 'owner') {
keyType = 'i64';
index = 2;
}
else if (params.key_name === 'instrument_template') {
keyType = 'i64';
index = 3;
}
else if (params.key_name === 'instrument_class') {
keyType = 'i64';
index = 4;
}
else {
// index by instrument_id
keyType = 'i64';
index = 1;
}
parameters = __assign(__assign({}, params), { json: true, lower_bound: params.lower_bound || lowerBound, upper_bound: params.upper_bound || upperBound, scope: params.scope || params.code, limit: params.limit || limit, key_type: keyType || 'i64', index_position: index || 1 });
return [4 /*yield*/, this.eos.rpc.get_table_rows(parameters)];
case 1:
results = _a.sent();
return [2 /*return*/, results.rows];
}
});
});
}
/* Public */
function getAllInstruments() {
return __awaiter(this, void 0, void 0, function () {
var instruments;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, getInstruments.bind(this)({
code: 'instr.ore',
table: 'tokens'
})];
case 1:
instruments = _a.sent();
return [2 /*return*/, instruments];
}
});
});
}
function getRight(instrument, rightName) {
var _a = instrument.instrument, rights = (_a === void 0 ? {} : _a).rights;
var right = rights.find(function (rightObject) {
if (rightObject.right_name === rightName) {
return rightObject;
}
return undefined;
});
return right;
}
function findInstruments(oreAccountName, activeOnly, category, rightName) {
if (activeOnly === void 0) { activeOnly = true; }
if (category === void 0) { category = undefined; }
if (rightName === void 0) { rightName = undefined; }
return __awaiter(this, void 0, void 0, function () {
var instruments;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, getInstruments.bind(this)({
code: 'instr.ore',
table: 'tokens',
lower_bound: oreAccountName,
key_name: 'owner'
})];
case 1:
instruments = _a.sent();
if (activeOnly) {
instruments = instruments.filter(function (element) { return isActive(element); });
}
if (category) {
instruments = instruments.filter(function (element) { return hasCategory(element, category); });
}
if (!rightName) return [3 /*break*/, 3];
return [4 /*yield*/, this.getInstrumentsByRight.bind(this)(instruments, rightName)];
case 2:
instruments = _a.sent();
_a.label = 3;
case 3: return [2 /*return*/, instruments];
}
});
});
}
function sortInstruments(instruments, rightName, sortOrder) {
var _this = this;
if (sortOrder === void 0) { sortOrder = 'cheapestThenMostRecent'; }
// sorts the instruments depending on the search criteria :
// cheapestThenMostRecent - returns the cheapest instrument for the right and if there are more than one with the same price, then returns the latest created/updated instrument
// mostRecent - returns the latest instrument created/updated for the right
var sortedInstruments;
var cheapestInstrument;
var cheapestPrice;
var cheapestInstruments;
switch (sortOrder) {
case 'cheapestThenMostRecent':
sortedInstruments = sortByCheapestRight.bind(this)(instruments, rightName);
cheapestInstrument = sortedInstruments[0];
cheapestPrice = this.getRight(cheapestInstrument, rightName).price_in_cpu;
cheapestInstruments = sortedInstruments.filter(function (instrument) { return _this.getRight(instrument, rightName).price_in_cpu === cheapestPrice; });
sortedInstruments = sortByMintedAt(cheapestInstruments);
break;
case 'mostRecent':
sortedInstruments = sortByMintedAt(instruments);
break;
default:
break;
}
return sortedInstruments[sortedInstruments.length - 1];
}
module.exports = {
getRight: getRight,
getAllInstruments: getAllInstruments,
findInstruments: findInstruments,
sortInstruments: sortInstruments
};
//# sourceMappingURL=instrument.js.map