feat: morning greeting

Author: cirex-web

app.ts

@@ -1,6 +1,7 @@
-import { App, LogLevel } from '@slack/bolt';
-import * as dotenv from 'dotenv';
-import registerListeners from './listeners';
+import { App, LogLevel } from "@slack/bolt";
+import * as dotenv from "dotenv";
+import registerListeners from "./listeners";
+import { setUpDailyGreeting } from "./intervals/morning";
 
 dotenv.config();
 
@@ -9,18 +10,25 @@ const app = new App({
   token: process.env.SLACK_BOT_TOKEN,
   socketMode: true,
   appToken: process.env.SLACK_APP_TOKEN,
-  logLevel: LogLevel.DEBUG,
+  logLevel: LogLevel.INFO,
 });
 
 /** Register Listeners */
 registerListeners(app);
-
+// setInterval(() => {
+//   app.client.chat.postMessage({
+//     text: "hi",
+//     channel: "C0933GKG93Q",
+//   });
+// }, 500);
 /** Start Bolt App */
+
 (async () => {
   try {
     await app.start(process.env.PORT || 3000);
-    app.logger.info('⚡️ Bolt app is running! ⚡️');
+    app.logger.info("⚡️ Bolt app is running! ⚡️");
+    setUpDailyGreeting(app, "C043UV30DHA");
   } catch (error) {
-    app.logger.error('Unable to start App', error);
+    app.logger.error("Unable to start App", error);
   }
 })();

intervals/morning.ts

@@ -0,0 +1,46 @@
+import { App, StringIndexed } from "@slack/bolt";
+import { DateTime } from "luxon";
+
+const greetingTime = {
+  hour: 9,
+  minute: 0,
+  second: 0,
+  millisecond: 0,
+};
+const currentTime = DateTime.local({ zone: "America/New_York" });
+let nextMorningTime =
+  currentTime.hour < greetingTime.hour
+    ? currentTime.set(greetingTime)
+    : currentTime.set(greetingTime).plus({ days: 1 });
+const greetings = [
+  "ohayou cmueats!",
+  "morning",
+  "yawwn good morning cmueats!",
+  "How's life? Good morning!",
+  "Do you ever wonder if you have free will?",
+];
+export const scheduleNextGreeting = (
+  sendMessage: (msg: string) => Promise<unknown>,
+  nextMorningTime: DateTime<true> // should be in desired timezone
+) => {
+  const currentTime = DateTime.local({ zone: "America/New_York" });
+  console.log(nextMorningTime);
+  setTimeout(() => {
+    sendMessage(greetings[Math.floor(Math.random() * greetings.length)]);
+    scheduleNextGreeting(sendMessage, nextMorningTime.plus({ days: 1 })); // this actually accounts for DST properly
+  }, nextMorningTime.diff(currentTime).toMillis());
+};
+
+export const setUpDailyGreeting = (
+  app: App<StringIndexed>,
+  channelId: string
+) => {
+  scheduleNextGreeting((msg: string) => {
+    return app.client.chat
+      .postMessage({
+        text: msg,
+        channel: channelId,
+      })
+      .catch(app.logger.error);
+  }, nextMorningTime);
+};

listeners/events/index.ts

@@ -1,8 +1,11 @@
-import type { App } from '@slack/bolt';
-import appHomeOpenedCallback from './app-home-opened';
+import type { App } from "@slack/bolt";
+import appHomeOpenedCallback from "./app-home-opened";
 
 const register = (app: App) => {
-  app.event('app_home_opened', appHomeOpenedCallback);
+  app.event("app_home_opened", appHomeOpenedCallback);
+  app.event("app_mention", async ({ payload, say }) => {
+    await say("hai! I'm here to let you know when cmueats goes down :3");
+  });
 };
 
 export default { register };

listeners/index.ts

@@ -1,10 +1,10 @@
-import type { App } from '@slack/bolt';
-import actions from './actions';
-import commands from './commands';
-import events from './events';
-import messages from './messages';
-import shortcuts from './shortcuts';
-import views from './views';
+import type { App } from "@slack/bolt";
+import actions from "./actions";
+import commands from "./commands";
+import events from "./events";
+import messages from "./messages";
+import shortcuts from "./shortcuts";
+import views from "./views";
 
 const registerListeners = (app: App) => {
   actions.register(app);

listeners/messages/index.ts

@@ -1,8 +1,52 @@
-import type { App } from '@slack/bolt';
-import sampleMessageCallback from './sample-message';
+import type { App } from "@slack/bolt";
+import sampleMessageCallback from "./sample-message";
+
+class GabeSenpaiMessages {
+  index = 0;
+  messages = [
+    "who ya calling senpai? He's mine!",
+    "~Stop playing with my feelings >_<",
+    "...",
+    "...",
+    "okay now you're just taunting me",
+    "I'm 25! geez",
+    "...",
+    "",
+    "",
+    "*pouty face",
+    "",
+    "",
+    "",
+    "Please stop",
+  ];
+  lastMessageSentTimestamp = 0;
+  FORGET_TIME_INTERVAL = 1000 * 60 * 30; // 30 min
+
+  getNextMessage() {
+    const curTimestamp = +new Date();
+    if (
+      curTimestamp - this.lastMessageSentTimestamp >=
+      this.FORGET_TIME_INTERVAL
+    ) {
+      this.index = 0;
+    }
+    this.lastMessageSentTimestamp = curTimestamp;
+    if (this.index < this.messages.length) {
+      return this.messages[this.index++];
+    }
+    return "";
+  }
+}
 
 const register = (app: App) => {
-  app.message(/^(hi|hello|hey).*/, sampleMessageCallback);
+  const gabeMessages = new GabeSenpaiMessages();
+
+  app.message("gabe-senpai", async ({ say }) => {
+    const nextMessage = gabeMessages.getNextMessage();
+    if (nextMessage !== "") {
+      await say(nextMessage);
+    }
+  });
 };
 
 export default { register };

manifest.json

@@ -1,43 +1,19 @@
 {
-    "_metadata": {
-        "major_version": 1,
-        "minor_version": 1
-    },
     "display_information": {
-        "name": "Bolt Template App"
+        "name": "mem-cho (cmueats uptime monitor)"
     },
     "features": {
-        "app_home": {
-            "home_tab_enabled": true,
-            "messages_tab_enabled": false,
-            "messages_tab_read_only_enabled": true
-        },
         "bot_user": {
-            "display_name": "Bolt Template App",
-            "always_online": false
-        },
-        "shortcuts": [
-            {
-                "name": "Run sample shortcut",
-                "type": "global",
-                "callback_id": "sample_shortcut_id",
-                "description": "Runs a sample shortcut"
-            }
-        ],
-        "slash_commands": [
-            {
-                "command": "/sample-command",
-                "description": "Runs a sample command",
-                "should_escape": false
-            }
-        ]
+            "display_name": "mem-cho (cmueats uptime monitor)",
+            "always_online": true
+        }
     },
     "oauth_config": {
         "scopes": {
             "bot": [
-                "channels:history",
+                "chat:write.public",
                 "chat:write",
-                "commands"
+                "channels:read"
             ]
         }
     },
@@ -48,9 +24,6 @@
                 "message.channels"
             ]
         },
-        "interactivity": {
-            "is_enabled": true
-        },
         "org_deploy_enabled": false,
         "socket_mode_enabled": true,
         "token_rotation_enabled": false

package.json

@@ -27,7 +27,9 @@
   },
   "dependencies": {
     "@slack/bolt": "^4.4.0",
-    "dotenv": "~16.5.0"
+    "@types/luxon": "^3.6.2",
+    "dotenv": "~16.5.0",
+    "luxon": "^3.6.1"
   },
   "devDependencies": {
     "@biomejs/biome": "^1.9.4",