Files
shields/services/discourse/discourse.service.js
2019-02-17 21:57:44 +00:00

113 lines
2.6 KiB
JavaScript

'use strict'
const Joi = require('joi')
const { BaseJsonService } = require('..')
const { metric } = require('../../lib/text-formatters')
const { nonNegativeInteger } = require('../validators')
const schema = Joi.object({
topic_count: nonNegativeInteger,
user_count: nonNegativeInteger,
post_count: nonNegativeInteger,
like_count: nonNegativeInteger,
}).required()
class DiscourseBase extends BaseJsonService {
static get category() {
return 'chat'
}
static buildRoute(metric) {
return {
base: 'discourse',
pattern: `:scheme(http|https)/:host/${metric}`,
}
}
static get defaultBadgeData() {
return { label: 'discourse' }
}
async fetch({ scheme, host }) {
return this._requestJson({
schema,
url: `${scheme}://${host}/site/statistics.json`,
})
}
}
function DiscourseMetricIntegrationFactory({ metricName, property }) {
return class DiscourseMetric extends DiscourseBase {
static get route() {
return this.buildRoute(metricName)
}
static get examples() {
return [
{
title: `Discourse ${metricName}`,
namedParams: {
scheme: 'https',
host: 'meta.discourse.org',
},
staticPreview: this.render({ stat: 100 }),
},
]
}
static render({ stat }) {
return {
message: `${metric(stat)} ${metricName}`,
color: 'brightgreen',
}
}
async handle({ scheme, host }) {
const data = await this.fetch({ scheme, host })
return this.constructor.render({ stat: data[property] })
}
}
}
class DiscourseStatus extends DiscourseBase {
static get route() {
return this.buildRoute('status')
}
static get examples() {
return [
{
title: `Discourse status`,
namedParams: {
scheme: 'https',
host: 'meta.discourse.org',
},
staticPreview: this.render(),
},
]
}
static render() {
return {
message: 'online',
color: 'brightgreen',
}
}
async handle({ scheme, host }) {
await this.fetch({ scheme, host })
// if fetch() worked, the server is up
// if it failed, we'll show an error e.g: 'inaccessible'
return this.constructor.render()
}
}
const metricIntegrations = [
{ metricName: 'topics', property: 'topic_count' },
{ metricName: 'users', property: 'user_count' },
{ metricName: 'posts', property: 'post_count' },
{ metricName: 'likes', property: 'like_count' },
].map(DiscourseMetricIntegrationFactory)
module.exports = [...metricIntegrations, DiscourseStatus]