From 71aea288b5e54cc68793b6b133b4efb55812699d Mon Sep 17 00:00:00 2001
From: Noah Loomans <noahloomans@gmail.com>
Date: Wed, 27 Sep 2017 12:57:19 +0200
Subject: Add !help to slack bot

---
 src/server/routes/slack.js | 41 +++++++++++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 8 deletions(-)

diff --git a/src/server/routes/slack.js b/src/server/routes/slack.js
index 780e7c0..e256f14 100644
--- a/src/server/routes/slack.js
+++ b/src/server/routes/slack.js
@@ -3,22 +3,20 @@ const router = express.Router()
 
 const getUserIndex = require('../lib/getUserIndex')
 
-router.all('/', function (req, res, next) {
-  getUserIndex().then(users => {
-    const query = req.body.text
+function generateResponse(query) {
+  return getUserIndex().then(users => {
     const user =
       users.filter(user => user.value === query)[0]
 
     if (!user) {
-      res.json({
+      return {
         "response_type": "ephemeral",
         "mrkdwn": true,
         "text": `Sorry, I tried my best, but I couldn't find _${query}_`
-      })
-      return
+      }
     }
 
-    res.json({
+    return {
       "response_type": "in_channel",
       "text": `Here is the schedule of _${query}_`,
       "mrkdwn": true,
@@ -28,8 +26,35 @@ router.all('/', function (req, res, next) {
           "image_url": `https://beta.rooster.hetmml.nl/get/${user.type}/${user.value}.png`
         }
       ]
-    })
+    }
   })
+}
+
+router.all('/', function (req, res, next) {
+  const query = req.body.text || req.query.text
+
+  if (query.indexOf('!') === 0) {
+    switch (query) {
+      case "!help":
+        res.json({
+          "response_type": "ephemeral",
+          "mrkdwn": true,
+          "text": "Here are some examples on how you can use me\n>/rooster 18561\n\n>/rooster akh\n\n>/rooster 6-5H2\n\n>/rooster 008-mk\n\nPlease note that the following does not work (yet)",
+          "attachments": [{
+            "text": "/rooster 5h2",
+            "color": "danger"
+          }]
+        })
+      default:
+        res.json({
+          "response_type": "ephemeral",
+          "text": "Unrecognized command, try !help"
+        })
+        break;
+    } 
+  }
+
+  generateResponse(query).then((json) => res.json(json))
 })
 
 module.exports = router
-- 
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