a068f72f08
* Remove Application.orig from merge * Disable i18n extraction for development * Retrieve blockNumber via pubsub * Chain via pubsub * StatusIndicator with health * WIP * WIP * s/BlockStatus/BlockNumber/ * Adjust BlockNumber display * Cleanup debug * Fix statusbar indicator * NetPeers component * Add BlockTimestamp * Export statics on observer * Cleanup debug logs * Update references
107 lines
2.6 KiB
JavaScript
107 lines
2.6 KiB
JavaScript
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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import { action, computed, observable } from 'mobx';
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const STATUS_OK = 'ok';
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const STATUS_WARN = 'needsAttention';
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const STATUS_BAD = 'bad';
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const EMPTY_OVERALL = { message: [], status: STATUS_BAD };
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export default class Store {
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@observable _health = null;
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constructor (api) {
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this._api = api;
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setInterval(this.fetchHealth, 2500);
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}
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@computed get health () {
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return this._health
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? this._health
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: {};
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}
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@computed get overall () {
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return this._health
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? this._health.overall
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: EMPTY_OVERALL;
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}
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fetchHealth = () => {
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// Support Parity-Extension.
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const uiUrl = this._api.transport.uiUrlWithProtocol || '';
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return fetch(`${uiUrl}/api/health`)
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.then((response) => {
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if (!response.ok) {
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return null;
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}
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return response.json();
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})
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.catch(() => {
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return null;
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})
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.then(this.setHealth);
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}
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_overallStatus = (health) => {
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const all = [health.peers, health.sync, health.time].filter(x => x);
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const statuses = all.map(x => x.status);
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const bad = statuses.find(x => x === STATUS_BAD);
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const needsAttention = statuses.find(x => x === STATUS_WARN);
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const message = all.map(x => x.message).filter(x => x);
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if (all.length) {
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return {
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status: bad || needsAttention || STATUS_OK,
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message
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};
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}
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return {
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status: STATUS_BAD,
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message: ['Unable to fetch node health.']
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};
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}
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@action setHealth = (health) => {
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if (!health) {
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this._health = null;
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return;
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}
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health.peers = health.peers || {};
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health.sync = health.sync || {};
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health.time = health.time || {};
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health.overall = this._overallStatus(health);
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this._health = health;
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}
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static instance = null;
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static get (api) {
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if (!Store.instance) {
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Store.instance = new Store(api);
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}
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return Store.instance;
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}
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}
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