Reorganize JS and introduce shared types

CONTRIBUTING.md

@@ -49,7 +49,7 @@ even for the website itself.
 
 #### Editing the page
 
-To change the layout of the page, use 
+To change the layout of the page, use
 
 #### Running tests
 

firebase/.node-version

@@ -0,0 +1 @@
+16.20.0

firebase/README.md

@@ -35,8 +35,12 @@ call.
 
 ### Deploying
 
+Edit `.firebaserc` to point `projects.default` to `whats-in-standard` if needed.
+
 ```sh
 firebase deploy
 ```
 
+Then revert `.firebaserc`.
+
 [@whatsinstandard]: https://twitter.com/whatsinstandard

firebase/firebase.json

@@ -3,10 +3,24 @@
     "rules": "firestore.rules",
     "indexes": "firestore.indexes.json"
   },
-  "functions": {
-    "ignore": [".runtimeconfig.json"],
-    "source": "functions"
-  },
+  "functions": [
+    {
+      "ignore": [
+        "node_modules",
+        ".git",
+        "firebase-debug.log",
+        "firebase-debug.*.log",
+        "**/*.map"
+      ],
+      "source": "./functions/dist/firebase/functions",
+      "codebase": "default",
+      "predeploy": [
+        "cp functions/package.json functions/dist/firebase/functions",
+        "npm --prefix \"$RESOURCE_DIR\" run lint",
+        "npm --prefix \"$RESOURCE_DIR\" run build"
+      ]
+    }
+  ],
   "emulators": {
     "firestore": {
       "port": "8080"

firebase/functions/detect_rotations.ts

@@ -0,0 +1,41 @@
+import * as functions from "firebase-functions";
+import * as admin from "firebase-admin";
+const db = admin.firestore();
+
+const twitterCollection = db.collection("twitterbot/last-known/sets");
+const mastodonCollection = db.collection("mastodonbot/last-known/sets");
+
+import { diff, standardSets, toot, tweet } from "./lib";
+
+admin.initializeApp();
+
+export async function detectRotations(context: any) {
+  const config = functions.config();
+  const apiSets = await standardSets();
+
+  await diff(twitterCollection, apiSets).then(async (setDifferences) => {
+    if (
+      setDifferences.addedSets.size == 0 &&
+      setDifferences.removedSets.size == 0
+    ) {
+      functions.logger.info(
+        `No sets changed, not tweeting (${setDifferences.unchangedSets.size} sets accounted for)`
+      );
+      return;
+    }
+    await tweet(config, setDifferences);
+  });
+
+  await diff(mastodonCollection, apiSets).then(async (setDifferences) => {
+    if (
+      setDifferences.addedSets.size == 0 &&
+      setDifferences.removedSets.size == 0
+    ) {
+      functions.logger.info(
+        `No sets changed, not tooting (${setDifferences.unchangedSets.size} sets accounted for)`
+      );
+      return;
+    }
+    await toot(config, setDifferences);
+  });
+}