feat: add DB CRUD layer for buckets, multipart, and S3 file extensions

src/db/buckets.ts

@@ -0,0 +1,67 @@
+import { sql } from 'drizzle-orm';
+import { db } from './index';
+
+export interface Bucket {
+  id: string;
+  name: string;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+interface QueryResult {
+  rows: Record<string, unknown>[];
+  rowCount: number;
+}
+
+export const createBucket = async (name: string): Promise<Bucket> => {
+  const result = (await db.execute(
+    sql`INSERT INTO buckets (name) VALUES (${name}) RETURNING id, name, created_at, updated_at`,
+  )) as unknown as QueryResult;
+  const row = result.rows[0];
+  return {
+    id: row.id as string,
+    name: row.name as string,
+    createdAt: new Date(row.created_at as string),
+    updatedAt: new Date(row.updated_at as string),
+  };
+};
+
+export const findBucketByName = async (name: string): Promise<Bucket | null> => {
+  const result = (await db.execute(
+    sql`SELECT id, name, created_at, updated_at FROM buckets WHERE name = ${name}`,
+  )) as unknown as QueryResult;
+  if (result.rows.length === 0) return null;
+  const row = result.rows[0];
+  return {
+    id: row.id as string,
+    name: row.name as string,
+    createdAt: new Date(row.created_at as string),
+    updatedAt: new Date(row.updated_at as string),
+  };
+};
+
+export const listBuckets = async (): Promise<Bucket[]> => {
+  const result = (await db.execute(
+    sql`SELECT id, name, created_at, updated_at FROM buckets ORDER BY name`,
+  )) as unknown as QueryResult;
+  return result.rows.map((row) => ({
+    id: row.id as string,
+    name: row.name as string,
+    createdAt: new Date(row.created_at as string),
+    updatedAt: new Date(row.updated_at as string),
+  }));
+};
+
+export const deleteBucket = async (name: string): Promise<boolean> => {
+  const result = (await db.execute(
+    sql`DELETE FROM buckets WHERE name = ${name}`,
+  )) as unknown as QueryResult;
+  return result.rowCount > 0;
+};
+
+export const bucketExists = async (name: string): Promise<boolean> => {
+  const result = (await db.execute(
+    sql`SELECT 1 FROM buckets WHERE name = ${name}`,
+  )) as unknown as QueryResult;
+  return result.rows.length > 0;
+};