Remove NotificationSettings table (#5036

* helper

* Add script to move notification settings

* wip, removal of NotificationSettings

* event name

* iteration

* test

* test

* Remove last of NotificationSettings model

* refactor

* More fixes

* snapshots

* Change emails to class instances for type safety

* test

* docs

* Update migration for self-hosted

* tsc

server/scripts/20230313000000-migrate-notification-settings.ts

@@ -0,0 +1,62 @@
+import "./bootstrap";
+import { QueryTypes } from "sequelize";
+import { sequelize } from "@server/database/sequelize";
+import { User } from "@server/models";
+
+const limit = 100;
+let page = parseInt(process.argv[2], 10);
+page = Number.isNaN(page) ? 0 : page;
+
+export default async function main(exit = false) {
+  const work = async (page: number): Promise<void> => {
+    console.log(`Backfill user notification settings… page ${page}`);
+    const users = await User.findAll({
+      limit,
+      offset: page * limit,
+      order: [["createdAt", "ASC"]],
+    });
+
+    for (const user of users) {
+      try {
+        const settings = await sequelize.query<{ event: string }>(
+          `SELECT event FROM notification_settings WHERE "userId" = :userId`,
+          {
+            type: QueryTypes.SELECT,
+            replacements: {
+              userId: user.id,
+            },
+          }
+        );
+
+        const eventTypes = settings.map((setting) => setting.event);
+        user.notificationSettings = {};
+
+        for (const eventType of eventTypes) {
+          user.notificationSettings[eventType] = true;
+          user.changed("notificationSettings", true);
+        }
+
+        await user.save({
+          hooks: false,
+          silent: true,
+        });
+      } catch (err) {
+        console.error(`Failed at ${user.id}:`, err);
+        continue;
+      }
+    }
+
+    return users.length === limit ? work(page + 1) : undefined;
+  };
+
+  await work(page);
+
+  if (exit) {
+    console.log("Backfill complete");
+    process.exit(0);
+  }
+} // In the test suite we import the script rather than run via node CLI
+
+if (process.env.NODE_ENV !== "test") {
+  main(true);
+}