Migrate stack to SQLite and set Coolify defaults

lib/server/db/index.ts

@@ -1,37 +1,54 @@
-import { drizzle } from 'drizzle-orm/node-postgres';
-import { Pool } from 'pg';
+import { mkdirSync } from 'node:fs';
+import { dirname } from 'node:path';
+import { Database } from 'bun:sqlite';
+import { drizzle } from 'drizzle-orm/bun-sqlite';
 import { schema } from './schema';
 
 type AppDrizzleDb = ReturnType<typeof createDb>;
 
 declare global {
   // eslint-disable-next-line no-var
-  var __fiscalPgPool: Pool | undefined;
+  var __fiscalSqliteClient: Database | undefined;
   // eslint-disable-next-line no-var
   var __fiscalDrizzleDb: AppDrizzleDb | undefined;
 }
 
-function getConnectionString() {
-  const connectionString = process.env.DATABASE_URL?.trim();
-  if (!connectionString) {
-    throw new Error('DATABASE_URL is required for PostgreSQL.');
+function getDatabasePath() {
+  const raw = process.env.DATABASE_URL?.trim() || 'file:data/fiscal.sqlite';
+  let databasePath = raw.startsWith('file:') ? raw.slice(5) : raw;
+
+  if (databasePath.startsWith('///')) {
+    databasePath = databasePath.slice(2);
   }
 
-  return connectionString;
+  if (!databasePath) {
+    throw new Error('DATABASE_URL must point to a SQLite file path.');
+  }
+
+  return databasePath;
 }
 
-export function getPool() {
-  if (!globalThis.__fiscalPgPool) {
-    globalThis.__fiscalPgPool = new Pool({
-      connectionString: getConnectionString()
-    });
+export function getSqliteClient() {
+  if (!globalThis.__fiscalSqliteClient) {
+    const databasePath = getDatabasePath();
+
+    if (databasePath !== ':memory:') {
+      mkdirSync(dirname(databasePath), { recursive: true });
+    }
+
+    const client = new Database(databasePath, { create: true });
+    client.exec('PRAGMA foreign_keys = ON;');
+    client.exec('PRAGMA journal_mode = WAL;');
+    client.exec('PRAGMA busy_timeout = 5000;');
+
+    globalThis.__fiscalSqliteClient = client;
   }
 
-  return globalThis.__fiscalPgPool;
+  return globalThis.__fiscalSqliteClient;
 }
 
 function createDb() {
-  return drizzle(getPool(), { schema });
+  return drizzle(getSqliteClient(), { schema });
 }
 
 export const db = globalThis.__fiscalDrizzleDb ?? createDb();