feat: auto-post to reddit

server/prod.env

@@ -2,4 +2,8 @@ LOG_TOKEN="op://Environment Variables - Naomi/Alert Server/api_auth"
 MONGO_URI="op://Environment Variables - Naomi/Hikari/mongo_uri"
 DISCORD_TOKEN="op://Environment Variables - Naomi/Hikari/discord_token"
 FORUM_API_KEY="op://Environment Variables - Naomi/Hikari/discourse_key"
-ANNOUNCEMENT_TOKEN="op://Environment Variables - Naomi/Hikari/announcement_token"
+ANNOUNCEMENT_TOKEN="op://Environment Variables - Naomi/Hikari/announcement_token"
+REDDIT_CLIENT_ID="op://Environment Variables - Naomi/Hikari/reddit_client_id"
+REDDIT_CLIENT_SECRET="op://Environment Variables - Naomi/Hikari/reddit_client_secret"
+REDDIT_PASSWORD="op://Environment Variables - Naomi/Hikari/reddit_password"
+REDDIT_USERNAME="op://Environment Variables - Naomi/Hikari/reddit_username"

server/src/modules/announceOnReddit.ts

@@ -0,0 +1,96 @@
+/**
+ * @copyright nhcarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+/* eslint-disable @typescript-eslint/naming-convention -- we are making raw API calls. */
+/* eslint-disable max-lines-per-function -- Big logic here. */
+
+const flairIds = {
+  community: "7a01a5a6-0f29-11ef-a0c4-c6fb085f7c8f",
+  products:  "335e57b6-083f-11ef-96b3-0202af2d9d99",
+};
+
+/**
+ * Posts an announcement to a specific subreddit as a self-post.
+ * @param title - The title of the announcement.
+ * @param content - The main body of the announcement.
+ * @param type - Whether the announcement is for a product or community.
+ * @returns A message indicating the success or failure of the operation.
+ */
+export const announceOnReddit = async(
+  title: string,
+  content: string,
+  type: "products" | "community",
+): Promise<string> => {
+  if (
+    process.env.REDDIT_CLIENT_ID === undefined
+        || process.env.REDDIT_CLIENT_SECRET === undefined
+        || process.env.REDDIT_USERNAME === undefined
+        || process.env.REDDIT_PASSWORD === undefined
+  ) {
+    return "Reddit credentials are not set.";
+  }
+  const tokenResponse = await fetch(
+    "https://www.reddit.com/api/v1/access_token",
+    {
+      body: new URLSearchParams({
+        grant_type: "password",
+        password:   process.env.REDDIT_PASSWORD,
+        username:   process.env.REDDIT_USERNAME,
+      }),
+      headers: {
+        "Authorization": `Basic ${Buffer.from(
+          `${process.env.REDDIT_CLIENT_ID}:${process.env.REDDIT_CLIENT_SECRET}`,
+        ).toString("base64")}`,
+        "Content-Type": "application/x-www-form-urlencoded",
+        "User-Agent":   "HikariBot/1.0 by nhcarrigan",
+      },
+      method: "POST",
+    },
+  );
+
+  if (tokenResponse.status !== 200) {
+    return `Failed to obtain Reddit access token. Status: ${tokenResponse.status.toString()} ${tokenResponse.statusText}`;
+  }
+
+  // eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- Fetch does not accept generic.
+  const tokenData = (await tokenResponse.json()) as { access_token?: string };
+
+  if (tokenData.access_token === undefined) {
+    return `Failed to obtain Reddit access token. ${JSON.stringify(tokenData)}`;
+  }
+
+  const redditPost = await fetch("https://oauth.reddit.com/api/submit", {
+    body: new URLSearchParams({
+      api_type:   "json",
+      flair_id:   flairIds[type],
+      flair_text: type,
+      kind:       "self",
+      sr:         "nhcarrigan",
+      text:       content,
+      title:      title,
+    }),
+    headers: {
+      "Authorization": `bearer ${tokenData.access_token}`,
+      "Content-Type":  "application/x-www-form-urlencoded",
+      "User-Agent":    "HikariBot/1.0 by nhcarrigan",
+    },
+    method: "POST",
+  });
+
+  // eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- Fetch does not accept generic.
+  const redditData = (await redditPost.json()) as {
+    json: {
+      errors: Array<unknown>;
+    };
+  };
+
+  if (redditData.json.errors.length > 0) {
+    return `Failed to post to Reddit: ${JSON.stringify(
+      redditData.json.errors,
+    )}`;
+  }
+
+  return "Successfully posted announcement to Reddit~! ✨";
+};

server/src/routes/announcement.ts

@@ -8,6 +8,7 @@ import { blockedIps } from "../cache/blockedIps.js";
 import { database } from "../db/database.js";
 import { announceOnDiscord } from "../modules/announceOnDiscord.js";
 import { announceOnForum } from "../modules/announceOnForum.js";
+import { announceOnReddit } from "../modules/announceOnReddit.js";
 import { getIpFromRequest } from "../modules/getIpFromRequest.js";
 import type { FastifyPluginAsync } from "fastify";
 
@@ -102,8 +103,9 @@ export const announcementRoutes: FastifyPluginAsync = async(server) => {
 
       const discord = await announceOnDiscord(title, content, type);
       const forum = await announceOnForum(title, content, type);
+      const reddit = await announceOnReddit(title, content, type);
       return await reply.status(201).send({
-        message: `Announcement processed. Discord: ${discord}, Forum: ${forum}`,
+        message: `Announcement processed. Discord: ${discord}, Forum: ${forum}, Reddit: ${reddit}`,
       });
     },
   );