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104 lines
3.5 KiB
JavaScript
104 lines
3.5 KiB
JavaScript
"use strict";
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// The MIT License (MIT)
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//
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// Copyright (c) 2017 Firebase
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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Object.defineProperty(exports, "__esModule", { value: true });
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const _ = require("lodash");
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const firebase = require("firebase-admin");
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const config_1 = require("./config");
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/** @internal */
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function apps() {
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if (typeof apps.singleton === 'undefined') {
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apps.init();
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}
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return apps.singleton;
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}
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exports.apps = apps;
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/** @internal */
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(function (apps) {
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/** @internal */
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apps.garbageCollectionInterval = 2 * 60 * 1000;
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/** @internal */
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function delay(delay) {
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return new Promise(resolve => {
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setTimeout(resolve, delay);
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});
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}
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apps.delay = delay;
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apps.init = () => (apps.singleton = new Apps());
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/** @internal */
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class Apps {
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constructor() {
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this._refCounter = {};
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}
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_appAlive(appName) {
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try {
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let app = firebase.app(appName);
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return !_.get(app, 'isDeleted_');
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}
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catch (e) {
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return false;
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}
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}
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_destroyApp(appName) {
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if (!this._appAlive(appName)) {
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return;
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}
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firebase
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.app(appName)
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.delete()
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.catch(_.noop);
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}
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retain() {
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let increment = (n) => {
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return (n || 0) + 1;
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};
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// Increment counter for admin because function might use event.data.ref
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_.update(this._refCounter, '__admin__', increment);
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}
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release() {
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let decrement = (n) => {
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return n - 1;
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};
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return delay(apps.garbageCollectionInterval).then(() => {
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_.update(this._refCounter, '__admin__', decrement);
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_.forEach(this._refCounter, (count, key) => {
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if (count <= 0) {
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this._destroyApp(key);
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}
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});
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});
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}
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get admin() {
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if (this._appAlive('__admin__')) {
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return firebase.app('__admin__');
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}
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return firebase.initializeApp(this.firebaseArgs, '__admin__');
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}
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get firebaseArgs() {
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return _.assign({}, config_1.firebaseConfig(), {
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credential: firebase.credential.applicationDefault(),
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});
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}
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}
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apps.Apps = Apps;
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})(apps = exports.apps || (exports.apps = {}));
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