@airgap/coinlib-core/dependencies/src/@stablelib/random-1.0.2/packages/random/source/system.js

The @airgap/coinlib-core is a protocol agnostic library to prepare, sign and broadcast cryptocurrency transactions.

"use strict";
// Copyright (C) 2016 Dmitry Chestnykh
// MIT License. See LICENSE file for details.
Object.defineProperty(exports, "__esModule", { value: true });
exports.SystemRandomSource = void 0;
var browser_1 = require("./browser");
var node_1 = require("./node");
var SystemRandomSource = /** @class */ (function () {
    function SystemRandomSource() {
        this.isAvailable = false;
        this.name = "";
        // Try browser.
        this._source = new browser_1.BrowserRandomSource();
        if (this._source.isAvailable) {
            this.isAvailable = true;
            this.name = "Browser";
            return;
        }
        // If no browser source, try Node.
        this._source = new node_1.NodeRandomSource();
        if (this._source.isAvailable) {
            this.isAvailable = true;
            this.name = "Node";
            return;
        }
        // No sources, we're out of options.
    }
    SystemRandomSource.prototype.randomBytes = function (length) {
        if (!this.isAvailable) {
            throw new Error("System random byte generator is not available.");
        }
        return this._source.randomBytes(length);
    };
    return SystemRandomSource;
}());
exports.SystemRandomSource = SystemRandomSource;
//# sourceMappingURL=system.js.map