feat(users): Add script to change username

modules/users/module.yaml

@@ -17,6 +17,10 @@ scripts:
     public: true
   create_user:
     name: Create User
+  update_username:
+    name: Update Username
+    description: Update a user's username. Requires user auth in the form of a token.
+    public: true
   authenticate_user:
     name: Validate User Token
     description: Validate a user token. Throws an error if the token is invalid.

modules/users/scripts/update_username.ts

@@ -0,0 +1,51 @@
+import { ScriptContext, RuntimeError } from "../_gen/scripts/update_username.ts";
+import { User } from "../utils/types.ts";
+
+export interface Request {
+    userToken: string;
+	username: string;
+}
+
+export interface Response {
+	user: User;
+}
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+	await ctx.modules.rateLimit.throttlePublic({ requests: 2, period: 5 * 60 });
+
+    // Authenticate user
+    const { userId } = await ctx.modules.users.authenticateUser({ userToken: req.userToken });
+
+    const user = await ctx.db.$transaction(async (db) => {
+        const userPrevState = await db.user.findFirst({
+            where: {
+                id: userId,
+            },
+        });
+
+        if (!userPrevState) {
+            throw new RuntimeError("INTERNAL_ERROR", { cause: `User token validated but user doesn't exist` });
+        }
+
+        if (userPrevState.username === req.username) {
+            return userPrevState;
+        }
+
+        const user = await db.user.update({
+            where: {
+                id: userId,
+            },
+            data: {
+                username: req.username,
+                updatedAt: new Date(),
+            }
+        });
+
+        return user;
+    });
+
+	return { user };
+}

modules/users/tests/e2e.ts

@@ -1,7 +1,6 @@
 import { test, TestContext } from "../_gen/test.ts";
 import { faker } from "https://deno.land/x/[email protected]/mod.ts";
-import { assertEquals } from "https://deno.land/[email protected]/assert/assert_equals.ts";
-import { assertExists } from "https://deno.land/[email protected]/assert/assert_exists.ts";
+import { assertEquals, assertNotEquals, assertExists } from "https://deno.land/[email protected]/assert/mod.ts";
 
 test("e2e", async (ctx: TestContext) => {
 	const { user } = await ctx.modules.users.createUser({
@@ -21,4 +20,18 @@ test("e2e", async (ctx: TestContext) => {
 		userToken: token.token,
 	});
 	assertEquals(user.id, userId);
+
+	const newUsername = faker.internet.userName();
+	const { user: updatedUser } = await ctx.modules.users.updateUsername({
+		userToken: token.token,
+		username: newUsername,
+	});
+	assertEquals(updatedUser.username, newUsername);
+
+	const { users: updatedUsers } = await ctx.modules.users.getUser({
+		userIds: [user.id],
+	});
+	assertEquals(updatedUsers[0].createdAt, user.createdAt);
+	assertNotEquals(updatedUsers[0].updatedAt, user.updatedAt);
+	assertEquals(updatedUsers[0].username, newUsername);
 });