mirror of
https://github.com/titanscouting/tra-analysis.git
synced 2024-09-20 17:07:55 +00:00
104 lines
3.5 KiB
JavaScript
104 lines
3.5 KiB
JavaScript
"use strict";
|
|
// The MIT License (MIT)
|
|
//
|
|
// Copyright (c) 2017 Firebase
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const _ = require("lodash");
|
|
const firebase = require("firebase-admin");
|
|
const config_1 = require("./config");
|
|
/** @internal */
|
|
function apps() {
|
|
if (typeof apps.singleton === 'undefined') {
|
|
apps.init();
|
|
}
|
|
return apps.singleton;
|
|
}
|
|
exports.apps = apps;
|
|
/** @internal */
|
|
(function (apps) {
|
|
/** @internal */
|
|
apps.garbageCollectionInterval = 2 * 60 * 1000;
|
|
/** @internal */
|
|
function delay(delay) {
|
|
return new Promise(resolve => {
|
|
setTimeout(resolve, delay);
|
|
});
|
|
}
|
|
apps.delay = delay;
|
|
apps.init = () => (apps.singleton = new Apps());
|
|
/** @internal */
|
|
class Apps {
|
|
constructor() {
|
|
this._refCounter = {};
|
|
}
|
|
_appAlive(appName) {
|
|
try {
|
|
let app = firebase.app(appName);
|
|
return !_.get(app, 'isDeleted_');
|
|
}
|
|
catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
_destroyApp(appName) {
|
|
if (!this._appAlive(appName)) {
|
|
return;
|
|
}
|
|
firebase
|
|
.app(appName)
|
|
.delete()
|
|
.catch(_.noop);
|
|
}
|
|
retain() {
|
|
let increment = (n) => {
|
|
return (n || 0) + 1;
|
|
};
|
|
// Increment counter for admin because function might use event.data.ref
|
|
_.update(this._refCounter, '__admin__', increment);
|
|
}
|
|
release() {
|
|
let decrement = (n) => {
|
|
return n - 1;
|
|
};
|
|
return delay(apps.garbageCollectionInterval).then(() => {
|
|
_.update(this._refCounter, '__admin__', decrement);
|
|
_.forEach(this._refCounter, (count, key) => {
|
|
if (count <= 0) {
|
|
this._destroyApp(key);
|
|
}
|
|
});
|
|
});
|
|
}
|
|
get admin() {
|
|
if (this._appAlive('__admin__')) {
|
|
return firebase.app('__admin__');
|
|
}
|
|
return firebase.initializeApp(this.firebaseArgs, '__admin__');
|
|
}
|
|
get firebaseArgs() {
|
|
return _.assign({}, config_1.firebaseConfig(), {
|
|
credential: firebase.credential.applicationDefault(),
|
|
});
|
|
}
|
|
}
|
|
apps.Apps = Apps;
|
|
})(apps = exports.apps || (exports.apps = {}));
|