49 lines
1.3 KiB
TypeScript
49 lines
1.3 KiB
TypeScript
import {Conf, ConfWWMeta} from "../../types/conf";
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import {urlWatcher, UrlWatcherResult} from '../abstract/url-watcher'
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import * as moment from 'moment'
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function handleLateness(confHead: ConfWWMeta, data: WWMetaJson) {
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const diff = Math.round(Date.now()/1000 - data.now)
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if (diff >= confHead.maxLate) {
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return UrlWatcherResult.ko(`WWData is late by ${diff}s (>= ${confHead.maxLate})`)
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}
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return UrlWatcherResult.ok()
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}
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export function jsonWatcher(conf: Conf) {
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const URL_PATH = '/00wwView'
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return async (confWWMeta: ConfWWMeta) => {
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return urlWatcher(conf, async (html) => {
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const data = parseData(html)
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return handleLateness(confWWMeta, data)
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})({
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name: `WWData watcher ${confWWMeta.name}`,
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address: confWWMeta.address + URL_PATH,
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frequency: confWWMeta.frequency
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},
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() => `State OK WWMeta.json is up-to-date`,
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() => `State FAILURE WWMeta.json`,
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() => `State RECOVERED WWMeta.json`)
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}
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}
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function parseData(html: string): WWMetaJson {
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const h3 = html.match(/<h3>([\s\S]*)<\/h3>/)
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if (!h3) {
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throw `Could not parse H3 from WW`
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}
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const data = h3[1].match(/Bloc (\d+)\s(.+)\s(.+)/)
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if (!data) {
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throw `Could not parse datetime from H3`
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}
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const now = moment(`${data[2]}`, 'DD/MM/YYYY HH:mm:ss')
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return { now: now.unix() }
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}
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interface WWMetaJson {
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now: number
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}
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