oref.org.il alters

alerts.mjs

#!/usr/bin/env zx

const LOC = "תל אביב - עבר הירקון";

function head(s, n=10) {
    if (typeof s === 'object') s = JSON.stringify(s, null, 2);
    return s.split('\n').slice(0, n).join('\n');
}

let a = await (await fetch('https://www.oref.org.il/warningMessages/alert/Alerts.json')).json().catch(() => ({}));
let b = await (await fetch('https://www.oref.org.il/warningMessages/alert/History/AlertsHistory.json')).json().catch(() => ([]));
let c = await (await fetch(`https://alerts-history.oref.org.il/Shared/Ajax/GetAlarmsHistory.aspx?lang=he&mode=1&city_0=${LOC}`)).json().catch(() => ([]));


let old = await fs.readFile('/tmp/a.json', 'utf-8')
    .then(JSON.parse).catch(() => ({}));

console.log(head(a))
console.log(head(b.filter(r => r.data == LOC), 15))
console.log(head(c.filter(r => r.data == LOC), 20))

if (a?.id && old?.id !== a.id && a.data.some(r => r == LOC))
    $`alerter --message ${`${a.data}`} --title ${a.title} --timeout 3`

fs.writeFile('/tmp/a.json', JSON.stringify(a))

Mac users: use Homebrew.

brew install zx alerter