inital commit

wichteln.js

@@ -0,0 +1,82 @@
+#!/usr/bin/env node
+
+const fs = require('fs');
+const readline = require('readline');
+const nodemailer = require('nodemailer');
+
+const mailer = nodemailer.createTransport({
+    sendmail: true,
+    newline: 'unix',
+    path: '/usr/sbin/sendmail'
+});
+
+function mail(email, name, pick) {
+    mailer.sendMail({
+        from: 'ido@cassiopeia.uberspace.com',
+        to: email,
+        subject: `Dein Wichtel ${name} ist ...`,
+        text: `Hey ${name},
+
+Dein Wichtel ist *trommelwirbel*
+
+${pick} !!!
+
+Viel Spaß
+Thomas
+
+Ps.: Bitte gebt nicht mehr als 5 Euro pro Geschenk aus!
+`,
+    }, (err, info) => {
+        console.log(info.envelope);
+        console.log(info.messageId);
+    });
+}
+
+function read() {
+    return new Promise((resolve, reject) => {
+        const people = [];
+        const rl = readline.createInterface({
+            input: fs.createReadStream('people.txt')
+        });
+
+        rl.on('line', line => {
+            const [name, email, group] = line.split(/\s+/);
+            people.push({ name, email, group });
+        });
+
+        rl.on('error', reject);
+
+        rl.on('close', () => {
+            resolve(people);
+        });
+    });
+}
+
+async function run() {
+    const people = await read();
+
+    people.forEach(drawer => {
+        let picked;
+
+        let pickable = people.filter(p =>
+            !p.picked
+            && drawer.name !== p.name
+            && (!drawer.group || drawer.group !== p.group)
+        );
+
+        if (pickable.length === 0) {
+            throw new Error('ohhh, noone left for ', drawer.name);
+        }
+
+        let pickIndex = Math.floor(Math.random() * pickable.length);
+        drawer.pick = pickable[pickIndex].name;
+        pickable[pickIndex].picked = true;
+    });
+
+
+    fs.writeFileSync('./picks.json', JSON.stringify(people.map(({name, pick}) => ({name, pick})), null, 4));
+
+    people.forEach(p => mail(p.email, p.name, p.pick));
+}
+
+run();