chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

server/commands/userDestroyer.ts

@@ -0,0 +1,74 @@
+import { Event, User } from "@server/models";
+import { ValidationError } from "../errors";
+import { Op, sequelize } from "../sequelize";
+
+export default async function userDestroyer({
+  user,
+  actor,
+  ip,
+}: {
+  // @ts-expect-error ts-migrate(2749) FIXME: 'User' refers to a value, but is being used as a t... Remove this comment to see the full error message
+  user: User;
+  // @ts-expect-error ts-migrate(2749) FIXME: 'User' refers to a value, but is being used as a t... Remove this comment to see the full error message
+  actor: User;
+  ip: string;
+}) {
+  const { teamId } = user;
+  const usersCount = await User.count({
+    where: {
+      teamId,
+    },
+  });
+
+  if (usersCount === 1) {
+    throw ValidationError("Cannot delete last user on the team.");
+  }
+
+  if (user.isAdmin) {
+    const otherAdminsCount = await User.count({
+      where: {
+        isAdmin: true,
+        teamId,
+        id: {
+          [Op.ne]: user.id,
+        },
+      },
+    });
+
+    if (otherAdminsCount === 0) {
+      throw ValidationError(
+        "Cannot delete account as only admin. Please make another user admin and try again."
+      );
+    }
+  }
+
+  const transaction = await sequelize.transaction();
+  let response;
+
+  try {
+    response = await user.destroy({
+      transaction,
+    });
+    await Event.create(
+      {
+        name: "users.delete",
+        actorId: actor.id,
+        userId: user.id,
+        teamId,
+        data: {
+          name: user.name,
+        },
+        ip,
+      },
+      {
+        transaction,
+      }
+    );
+    await transaction.commit();
+  } catch (err) {
+    await transaction.rollback();
+    throw err;
+  }
+
+  return response;
+}