Discord chat bot to announce projects (#590) (#600)

* Discord chat bot to announce projects (#590)

Add support for discord chat bot to announce when images are set, with instructions on configuring for dev. This uses the REST
API instead of a websocket connection, which is needed for serverless deployment.

Co-authored-by: Kurt Hutten <k.hutten@protonmail.ch>

* Remove discord.js dependency.

Co-authored-by: Kurt Hutten <k.hutten@protonmail.ch>

app/api/src/lib/discord.ts

@@ -0,0 +1,33 @@
+import axios from 'axios'
+
+let inst = null;
+if (!process.env.DISCORD_TOKEN || !process.env.DISCORD_CHANNEL_ID) {
+  console.warn("Discord bot not configured - please set process.env.DISCORD_TOKEN and process.env.DISCORD_CHANNEL_ID to send discord chats");
+} else {
+  inst = axios.create({
+    baseURL: 'https://discord.com/api'
+  });
+  inst.defaults.headers.common['Authorization'] = `Bot ${process.env.DISCORD_TOKEN}`
+  console.log(`Discord: using API token ${process.env.DISCORD_TOKEN}`);
+}
+
+export async function sendDiscordMessage(text: string, url?: string) {
+  if (!inst) {
+    console.error(`Discord: not configured to send message ("${text}")`);
+  } else {
+    const API_URL = `/channels/${process.env.DISCORD_CHANNEL_ID}/messages`;
+    if (url) {
+      return inst.post(API_URL, { embeds: [{
+        title: text,
+        image: {
+          url,
+        },
+      }] });
+    } else {
+      return inst.post(API_URL, {
+          content: text,
+      });
+    }
+  }
+}
+

app/api/src/services/projects/projects.ts

@@ -12,6 +12,8 @@ import {
 } from 'src/services/helpers'
 import { requireAuth } from 'src/lib/auth'
 import { requireOwnership, requireProjectOwnership } from 'src/lib/owner'
+import { sendDiscordMessage } from 'src/lib/discord'
+
 
 export const projects = ({ userName }) => {
   if (!userName) {
@@ -243,7 +245,19 @@ export const updateProjectImages = async ({
     const [updatedProject] = await Promise.all([
       projectPromise,
       imageDestroyPromise,
-    ])
+    ]).then(async (result) => {
+      const { userName } = await db.user.findUnique({
+        where: { id: project.userId },
+      })
+      sendDiscordMessage([
+        `${userName} just added an image to their ${project.cadPackage} project:`,
+        `  =>  ${project.title}`,
+        ``,
+        `Check it out, leave a comment, make them feel welcome!`,
+        `https://cadhub.xyz/u/${userName}/${project.title}`
+      ].join('\n'), `https://res.cloudinary.com/irevdev/image/upload/c_scale,w_700/v1/${mainImage}`)
+      return result
+    })
     return updatedProject
   }