refactor: split main file to pages

src/db/db.ts

@@ -0,0 +1,44 @@
+import { Database } from "bun:sqlite";
+const db = new Database("./data/mydb.sqlite", { create: true });
+
+if (!db.query("SELECT * FROM sqlite_master WHERE type='table'").get()) {
+  db.exec(`
+CREATE TABLE IF NOT EXISTS users (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	email TEXT NOT NULL,
+	password TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS file_names (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  job_id INTEGER NOT NULL,
+  file_name TEXT NOT NULL,
+  output_file_name TEXT NOT NULL,
+  status TEXT DEFAULT 'not started',
+  FOREIGN KEY (job_id) REFERENCES jobs(id)
+);
+CREATE TABLE IF NOT EXISTS jobs (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	user_id INTEGER NOT NULL,
+	date_created TEXT NOT NULL,
+  status TEXT DEFAULT 'not started',
+  num_files INTEGER DEFAULT 0,
+  FOREIGN KEY (user_id) REFERENCES users(id)
+);
+PRAGMA user_version = 1;`);
+}
+
+const dbVersion = (
+  db.query("PRAGMA user_version").get() as { user_version?: number }
+).user_version;
+if (dbVersion === 0) {
+  db.exec(
+    "ALTER TABLE file_names ADD COLUMN status TEXT DEFAULT 'not started';",
+  );
+  db.exec("PRAGMA user_version = 1;");
+  console.log("Updated database to version 1.");
+}
+
+// enable WAL mode
+db.exec("PRAGMA journal_mode = WAL;");
+
+export default db;