polyfact
Version:
<h1 align="center">PolyFact</h1>
200 lines (199 loc) • 9.03 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());
});
};
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 (g && (g = 0, op[0] && (_ = 0)), _) 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 _a, _b;
Object.defineProperty(exports, "__esModule", { value: true });
exports.fileInputToBuffer = exports.MutablePromise = exports.POLYFACT_ENDPOINT = exports.POLYFACT_TOKEN = void 0;
var async_mutex_1 = require("async-mutex");
var buffer_1 = require("buffer");
var token;
var endpoint;
if (typeof process !== "undefined") {
token = (_a = process === null || process === void 0 ? void 0 : process.env) === null || _a === void 0 ? void 0 : _a.POLYFACT_TOKEN;
endpoint = (_b = process === null || process === void 0 ? void 0 : process.env) === null || _b === void 0 ? void 0 : _b.POLYFACT_ENDPOINT;
}
exports.POLYFACT_TOKEN = token;
exports.POLYFACT_ENDPOINT = endpoint;
function splitPromiseResolver() {
var resolver;
var promise = new Promise(function (resolve) {
resolver = resolve;
});
return [promise, resolver]; // eslint-disable-line @typescript-eslint/no-non-null-assertion
}
var MutablePromise = /** @class */ (function () {
function MutablePromise() {
var _a;
this.result = {
status: "pending",
};
this.mutex = new async_mutex_1.Mutex();
_a = splitPromiseResolver(), this.promiseResult = _a[0], this.resolver = _a[1];
}
MutablePromise.prototype.set = function (value) {
var status = this.result.status;
var resolved = Object.assign(this.result, {
value: value,
status: "resolved",
});
if (status === "pending") {
this.resolver(resolved);
}
};
MutablePromise.prototype.throw = function (error) {
var status = this.result.status;
var rejected = Object.assign(this.result, {
error: error,
status: "rejected",
});
if (status === "pending") {
this.resolver(rejected);
}
};
MutablePromise.prototype.deresolve = function () {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.mutex.runExclusive(function () {
var _a;
_a = splitPromiseResolver(), _this.promiseResult = _a[0], _this.resolver = _a[1];
Object.assign(_this.result, {
status: "pending",
value: undefined,
});
})];
case 1:
_a.sent();
return [2 /*return*/];
}
});
});
};
MutablePromise.prototype.then = function (res, rej) {
return __awaiter(this, void 0, void 0, function () {
var value, e_1;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
return [4 /*yield*/, this.mutex.runExclusive(function () { return __awaiter(_this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.promiseResult];
case 1:
result = _a.sent();
if (result.status === "rejected") {
throw result.error;
}
return [2 /*return*/, result.value];
}
});
}); })];
case 1:
value = _a.sent();
if (res) {
return [2 /*return*/, res(value)];
}
return [3 /*break*/, 3];
case 2:
e_1 = _a.sent();
if (rej) {
return [2 /*return*/, rej(e_1)];
}
throw e_1;
case 3: throw new Error("Missing function in then");
}
});
});
};
return MutablePromise;
}());
exports.MutablePromise = MutablePromise;
function stream2buffer(stream) {
return new Promise(function (resolve, reject) {
var buf = [];
stream.on("data", function (chunk) { return buf.push(chunk); });
stream.on("end", function () { return resolve(buffer_1.Buffer.concat(buf)); });
stream.on("error", function (err) { return reject(err); });
});
}
function fetchStream2buffer(stream) {
return __awaiter(this, void 0, void 0, function () {
var reader, chunks, done, value;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
reader = stream.getReader();
chunks = [];
done = false;
_b.label = 1;
case 1:
if (!!done) return [3 /*break*/, 3];
return [4 /*yield*/, reader.read()];
case 2:
// eslint-disable-next-line no-await-in-loop
(_a = _b.sent(), done = _a.done, value = _a.value);
if (value) {
chunks.push(value);
}
return [3 /*break*/, 1];
case 3: return [2 /*return*/, buffer_1.Buffer.concat(chunks)];
}
});
});
}
function fileInputToBuffer(input) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (input instanceof buffer_1.Buffer) {
return [2 /*return*/, input];
}
if ("on" in input) {
return [2 /*return*/, stream2buffer(input)];
}
if ("getReader" in input) {
return [2 /*return*/, fetchStream2buffer(input)];
}
return [2 /*return*/, null];
});
});
}
exports.fileInputToBuffer = fileInputToBuffer;