chore: refactor

Author: andrew-wang0

src/index.ts

@@ -2,8 +2,8 @@ import { Client } from "pg";
 import { Resource } from "sst";
 import { handleCreate } from "./lib/create";
 import { handleDestroy } from "./lib/destroy";
-import { type Event, eventSchema, type Response } from "./lib/types";
-import { names } from "./lib/util";
+import { Action, type Event, eventSchema, type Response } from "./lib/types";
+import { DB_PORT, names } from "./lib/util";
 
 export async function handler(event: Event): Promise<Response> {
   eventSchema.parse(event);
@@ -12,13 +12,18 @@ export async function handler(event: Event): Promise<Response> {
   const host = Resource.DatabaseHost.value;
   const password = Resource.DatabasePassword.value;
 
-  const client = new Client({ host, port: 5432, user: "postgres", password });
+  const client = new Client({
+    host,
+    port: DB_PORT,
+    user: "postgres",
+    password,
+  });
   await client.connect();
 
   try {
-    if (event.action === "create") {
+    if (event.action === Action.Deploy) {
       return await handleCreate(client, host, database, username);
-    } else if (event.action === "destroy") {
+    } else if (event.action === Action.Remove) {
       return await handleDestroy(client, database, username);
     }
     return {

src/lib/create.ts

@@ -3,6 +3,7 @@ import format from "pg-format";
 import { Action, type CreateResponse } from "./types";
 import {
   buildPostgresUrl,
+  DB_PORT,
   databaseExists,
   generatePassword,
   roleExists,
@@ -46,7 +47,7 @@ export async function handleCreate(
 
   const url = buildPostgresUrl({
     host,
-    port: 5432,
+    port: DB_PORT,
     username,
     password,
     database,

src/lib/util.ts

@@ -1,6 +1,8 @@
 import { randomBytes } from "node:crypto";
 import type { Client } from "pg";
 
+export const DB_PORT = 5432;
+
 function sanitize(input: string) {
   return input
     .toLowerCase()