From dc9ba4f30489ce0d8edd7fba2d630735abb5b358 Mon Sep 17 00:00:00 2001
From: Kevin Midboe <kevin.midboe@gmail.com>
Date: Sat, 2 Feb 2019 15:32:11 +0100
Subject: [PATCH] Server for bill the slack bot. Remember to set env variable
 with slack access token. No fetch list of unverified items when /list slash
 command is used. Bill also responds with a Chuck Norris joke when asked for a
 joke

---
 server.js | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 server.js

diff --git a/server.js b/server.js
new file mode 100644
index 0000000..d384df5
--- /dev/null
+++ b/server.js
@@ -0,0 +1,82 @@
+var express = require('express')
+var bodyParser = require('body-parser')
+const axios = require('axios')
+
+var PORT = process.env.PORT || 3000;
+var BOT_TOKEN = process.env.SLACK_BOT_TOKEN || undefined;
+if (!BOT_TOKEN) {
+  throw new Error("please set the SLACK_BOT_TOKEN environmental variable");
+}
+
+var router = express.Router()
+
+router.use(function timeLog(req, res, next) {
+  console.log('Time: ', Date.now())
+  console.log('payload type', req.body.type)
+  next()
+})
+
+router.use((req, res, next) => {
+  res.setHeader('Content-Type', 'application/json');
+  next()
+})
+
+
+function postMessage(msg, channel) {
+  const data = {
+    "text": msg,
+    "channel": channel 
+  }
+  const headers = {
+    'Content-Type': 'application/json',
+    'Authorization': `Bearer ${BOT_TOKEN}` 
+  }
+
+  axios.post('https://slack.com/api/chat.postMessage', data, {headers: headers})
+  .then((resp) => console.log(resp.data))
+  .catch((error) => console.error(error.data))
+}
+
+router.post('/slack/list', (req, res, next) => {
+  axios.get('https://api.kevinmidboe.com/api/v1/seasoned/all')
+  .then((resp) => {
+    const shortlist = resp.data.slice(-3)
+    console.log('shortList', shortlist)
+
+    res.json(shortlist);
+  })
+})
+
+
+router.post('/slack/event', (req, res, next) => {
+  const payload = req.body;
+  const type = payload.type;
+
+  if (type === 'url_verification') {
+    res.json({ challenge: payload.challenge })
+  }
+
+  else if (payload.event.type === 'app_mention') {
+    if (payload.event.text.includes("joke")) {
+      console.log('someone is hungry for a joke');
+
+      axios.get('http://api.icndb.com/jokes/random')
+      .then((resp) => {
+	const msg = `Hello <@${payload.event.user}>! ${resp.data.value.joke}`
+	postMessage(msg, payload.event.channel) 
+      })
+    }
+  }
+
+  res.json({ challenge: payload.challenge })
+})
+
+var app = express()
+
+app.use(bodyParser.json())
+app.use(router)
+
+app.listen(PORT, () => {
+  console.log('Listening on port:', PORT);
+})
+