Introduce extend command to allow sandbox reservation extension

messages/extend.js

@@ -0,0 +1,89 @@
+const db = require('../db/connection');
+const { getSandboxNameFromMessage } = require('../common');
+
+function getSandboxDetails(channel, sandboxName) {
+  return new Promise((resolve, reject) => {
+    db.get(
+      'SELECT owner, assigned_at FROM sandboxes WHERE team = $teamChannel AND sandbox = $sandboxName',
+      { $teamChannel: channel, $sandboxName: sandboxName },
+      (err, row) => {
+        if (err || !row) {
+          return reject(err || 'sandbox does not exist');
+        }
+        return resolve(row);
+      },
+    );
+  });
+}
+
+function updateAssignedAt(channel, sandboxName, newAssignedAt) {
+  return new Promise((resolve, reject) => {
+    db.run(
+      'UPDATE sandboxes SET assigned_at = $newAssignedAt WHERE team = $teamChannel AND sandbox = $sandboxName',
+      {
+        $newAssignedAt: newAssignedAt.toUTCString(),
+        $teamChannel: channel,
+        $sandboxName: sandboxName,
+      },
+      (err) => {
+        if (err) return reject(err);
+        return resolve();
+      },
+    );
+  });
+}
+
+function addWorkingDays(startDate, workingDays) {
+  const date = new Date(startDate.getTime());
+  let remaining = workingDays;
+  while (remaining > 0) {
+    date.setDate(date.getDate() + 1);
+    const day = date.getDay();
+    if (day !== 0 && day !== 6) {
+      remaining -= 1;
+    }
+  }
+  return date;
+}
+
+function formatDate(date) {
+  return date.toISOString().slice(0, 10);
+}
+
+module.exports = {
+  pattern: /(przedluzam|extending) (sandbox|adeng|neutron-api)-|^[pe] (sandbox|adeng|neutron-api)-/i,
+  action({ message, say }) {
+    const sandboxName = getSandboxNameFromMessage(message);
+    let msg = `<@${message.user}> `;
+
+    if (!sandboxName) {
+      say(`${msg}:x: - can't find sandbox name in your message`);
+      return;
+    }
+
+    getSandboxDetails(message.channel, sandboxName)
+      .then(async ({ owner }) => {
+        if (!owner) {
+          msg += ':-1: - sandbox is not currently booked';
+          say(msg);
+          return;
+        }
+        if (owner !== message.user) {
+          msg += `:-1: - <@${owner}> is using it`;
+          say(msg);
+          return;
+        }
+
+        // Reset assigned_at to now to grant a fresh 5 working day window
+        const now = new Date();
+        await updateAssignedAt(message.channel, sandboxName, now);
+        const due = addWorkingDays(now, 5);
+
+        msg += `:+1: (extended, new due date _${formatDate(due)}_)`;
+        say(msg);
+      })
+      .catch((err) => {
+        say(`:x: sandbot error: \`${err}\`, try again`);
+      });
+  },
+};

messages/index.js

@@ -1,11 +1,13 @@
 const book = require('./book');
+const extend = require('./extend');
 const joke = require('./joke');
 const ping = require('./ping');
 const release = require('./release');
 const status = require('./status');
 
 module.exports = [
   book,
+  extend,
   joke,
   ping,
   release,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sandbot",
-  "version": "2.1.1",
+  "version": "2.2.0",
   "description": "Slack app for reserving sandboxes using Bolt Framework and SQLite",
   "main": "app.js",
   "scripts": {