84 lines
3.5 KiB
JavaScript
84 lines
3.5 KiB
JavaScript
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#!/usr/bin/env node
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'use strict';
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/**
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* Raise, clear or list ProdDash alerts from the command line — for trying a
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* dashboard's channels and the admin colours, or from a script on the
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* machine running ProdDash (anything that can POST JSON can raise one).
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*
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* node tools/alert.js "Service over by 5:00" # low, channel 1, 15 s
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* node tools/alert.js -c 2 -l critical -d 0 "LTC lost" # held until cleared
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* node tools/alert.js -c 2 --clear
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* node tools/alert.js --list
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*
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* Options: -c/--channel 1–6 (default 1), -l/--level low|medium|critical
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* (default low), -d/--duration seconds, 0 to hold until cleared (default the
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* server's 15), --url http://host:port (default http://127.0.0.1:24500, or
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* $PRODDASH_URL), --clear, --list. Node 18+, no dependencies.
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*/
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const args = process.argv.slice(2);
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const opts = { channel: 1, level: 'low', duration: undefined, url: process.env.PRODDASH_URL || 'http://127.0.0.1:24500', clear: false, list: false };
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const words = [];
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for (let i = 0; i < args.length; i += 1) {
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const a = args[i];
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const next = () => args[++i];
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if (a === '-c' || a === '--channel') opts.channel = Number(next());
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else if (a === '-l' || a === '--level') opts.level = String(next() || '');
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else if (a === '-d' || a === '--duration') opts.duration = Number(next());
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else if (a === '--url') opts.url = String(next() || opts.url);
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else if (a === '--clear') opts.clear = true;
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else if (a === '--list') opts.list = true;
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else if (a === '-h' || a === '--help') {
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console.log('usage: node tools/alert.js [-c 1-6] [-l low|medium|critical] [-d seconds] [--url http://host:port] "text"\n'
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+ ' node tools/alert.js -c <n> --clear\n'
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+ ' node tools/alert.js --list');
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process.exit(0);
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} else words.push(a);
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}
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const base = opts.url.replace(/\/+$/, '');
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async function call(path, init) {
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const res = await fetch(base + path, init);
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const body = await res.json().catch(() => ({}));
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if (!res.ok) throw new Error(body.error || `HTTP ${res.status}`);
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return body;
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}
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(async () => {
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if (opts.list) {
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const body = await call('/api/alerts');
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const active = body.active || [];
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console.log(`${active.length} active alert${active.length === 1 ? '' : 's'}; colours:`,
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Object.entries(body.colors || {}).map(([k, v]) => `${k} ${v.join('→')}`).join(', '));
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for (const a of active) {
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console.log(` channel ${a.channel} ${a.level.padEnd(8)} "${a.text}" from ${a.source}`
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+ (a.remainingMs === null ? ' (until cleared)' : ` (${Math.ceil(a.remainingMs / 1000)} s left)`));
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}
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return;
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}
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if (opts.clear) {
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const body = await call(`/api/alerts/${opts.channel}`, { method: 'DELETE' });
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console.log(body.cleared ? `cleared channel ${opts.channel}` : `nothing was on channel ${opts.channel}`);
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return;
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}
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const text = words.join(' ').trim();
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if (!text) {
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console.error('say what happened: node tools/alert.js -c 1 -l critical "LTC lost"');
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process.exit(2);
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}
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const payload = { channel: opts.channel, level: opts.level, text, source: 'cli' };
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if (opts.duration !== undefined) payload.duration = opts.duration;
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const body = await call('/api/alerts', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify(payload),
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});
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const a = body.alert;
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console.log(`raised ${a.level} on channel ${a.channel}: "${a.text}"`
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+ (a.remainingMs === null ? ' (until cleared)' : ` (${a.duration} s)`));
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})().catch((err) => {
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console.error(err.message || String(err));
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process.exit(1);
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});
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