Merge pull request #9 from rpiambulance/dev

Merge dev to master to fix #6

.env.example

@@ -0,0 +1,2 @@
+SLACK_USER_TOKEN=longtokenhere
+RPIALERT_URL=https://example.com/alert.js

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,38 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/pending-task.md

@@ -0,0 +1,21 @@
+---
+name: Pending task
+about: Log a task to be completed
+title: ''
+labels: task
+assignees: ''
+
+---
+
+**Describe the task**
+A clear and concise description of what the task is.
+
+**Required steps**
+Steps needed to complete this task:
+1. ...
+2. ...
+3. ...
+4. ...
+
+**Additional context**
+Add any other context about the task here.

.github/ISSUE_TEMPLATE/support-question.md

@@ -0,0 +1,35 @@
+---
+name: Support question
+about: Ask a question or request assistance
+title: ''
+labels: question
+assignees: ''
+
+---
+
+**Describe the question/request**
+A clear and concise description of what you need assistance with.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rpialert",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "A Slack integration to query RPI's alerting system and provide notifications on Slack",
   "main": "server.js",
   "scripts": {

server.js

@@ -1,41 +1,55 @@
 //node packages
 const axios = require("axios");
+const crypto = require("crypto");
+
 require("dotenv").config();
 
 //local packages
 const {
   app: {
     client: {
+      conversations: { history },
       chat: { postMessage }
     }
   }
 } = require("./utilities/bolt.js");
 
 //globals
-const RPIALERT_URL = "https://alert.rpi.edu/alerts.js";
+const RPIALERT_URL =
+  process.env.RPIALERT_URL || "https://alert.rpi.edu/alerts.js";
+const ALERTS_CHANNEL = process.env.ALERTS_CHANNEL;
 const USER_TOKEN = process.env.SLACK_USER_TOKEN;
 
 //package config
 
-let text = "";
-let oldtext = "";
+let oldHash;
 
 const parseAlertData = body => {
-  return body.substring(
-    body.indexOf("alert_content = ") + 17,
-    body.indexOf("alert_default = ") - 3
-  );
+  return body
+    .substring(
+      body.indexOf("alert_content = ") + 17,
+      body.indexOf("alert_default = ") - 3
+    )
+    .trim();
 };
 
 const rpialert = async () => {
   const { data } = await axios.get(RPIALERT_URL);
 
-  text = parseAlertData(data);
+  let text = parseAlertData(data);
+  if (text === "") {
+    return;
+  }
+
+  let hash = crypto
+    .createHash("md5")
+    .update(text)
+    .digest("hex");
 
-  if (text != oldtext && text != "") {
+  if (hash !== oldHash) {
     postMessage({
       token: USER_TOKEN,
-      channel: "alerts",
+      channel: ALERTS_CHANNEL,
       unfurl_links: false,
       text: "RPI ALERT - <!channel>",
       blocks: [
@@ -58,15 +72,51 @@ const rpialert = async () => {
             {
               type: "mrkdwn",
               text: " More info: https://alert.rpi.edu"
+            },
+            {
+              type: "plain_text",
+              text: hash
             }
           ]
         }
       ]
     });
   }
-  oldtext = text;
+  oldHash = hash;
+};
+
+const getOldHash = async () => {
+  let latest = Date.now();
+  for (;;) {
+    let results = await history({
+      token: USER_TOKEN,
+      channel: ALERTS_CHANNEL,
+      latest: latest
+    });
+
+    let messages = results.messages.filter(
+      x => x.subtype === "bot_message" && x.text === "RPI ALERT - <!channel>"
+    );
+    if (messages.length > 0) {
+      // Old style message, does not have hash, allow repost to have it add the hash
+      if (!messages[0].blocks[1].elements[2]) {
+        break;
+      }
+      oldHash = messages[0].blocks[1].elements[2].text;
+      break;
+    } else {
+      if (results.has_more) {
+        latest = results.messages[results.messages.length - 1].ts;
+      } else {
+        // Could not find a previous bot message
+        break;
+      }
+    }
+  }
 };
 
-setInterval(function() {
-  rpialert();
-}, 10000);
+getOldHash().then(() => {
+  setInterval(function() {
+    rpialert();
+  }, 10000);
+});