test the login yourself4

src/app/api/settings/hourly_rate/route.ts

@@ -1,8 +1,9 @@
 
 import { NextRequest, NextResponse } from 'next/server';
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 
 export async function GET(req: NextRequest) {
+  const db = getDb();
   try {
     const stmt = db.prepare('SELECT value FROM settings WHERE key = ?');
     const setting = stmt.get('hourly_rate') as { value: string } | undefined;
@@ -20,6 +21,7 @@ export async function GET(req: NextRequest) {
 }
 
 export async function POST(req: NextRequest) {
+  const db = getDb();
   try {
     const { value } = await req.json();
 

src/app/api/settings/smtp/route.ts

@@ -1,8 +1,9 @@
 
 import { NextRequest, NextResponse } from 'next/server';
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 
 export async function GET(req: NextRequest) {
+  const db = getDb();
   try {
     const stmt = db.prepare("SELECT key, value FROM settings WHERE key LIKE 'smtp_%'");
     const settings = stmt.all() as { key: string, value: string }[];
@@ -18,6 +19,7 @@ export async function GET(req: NextRequest) {
 }
 
 export async function POST(req: NextRequest) {
+  const db = getDb();
   try {
     const settings = await req.json();
     

src/lib/actions/email.ts

@@ -2,7 +2,7 @@
 'use server';
 
 import { z } from 'zod';
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 import { revalidatePath } from 'next/cache';
 
 const emailTemplateSchema = z.object({
@@ -59,6 +59,7 @@ const defaultBody = `
  * If no template is found, it creates and returns a default one.
  */
 export async function getEmailTemplate(): Promise<{ subject: string; body: string }> {
+  const db = getDb();
   try {
     const stmt = db.prepare('SELECT subject, body FROM email_templates WHERE id = ?');
     let template = stmt.get(1) as { subject: string; body: string } | undefined;
@@ -90,6 +91,7 @@ export async function updateEmailTemplate(data: { subject: string; body: string
   }
 
   const { subject, body } = validation.data;
+  const db = getDb();
 
   try {
     const stmt = db.prepare('UPDATE email_templates SET subject = ?, body = ? WHERE id = ?');

src/lib/actions/flows.ts

@@ -1,7 +1,7 @@
 
 'use server';
 
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 import { z } from 'zod';
 import { revalidatePath } from 'next/cache';
 import { redirect } from 'next/navigation';
@@ -29,6 +29,7 @@ type State = {
 }
 
 export async function getFlows(): Promise<Flow[]> {
+  const db = getDb();
   try {
     const stmt = db.prepare(
       'SELECT id, name, description, path, createdAt, updatedAt FROM flows ORDER BY createdAt DESC'
@@ -42,6 +43,7 @@ export async function getFlows(): Promise<Flow[]> {
 }
 
 export async function getFlow(id: number): Promise<Flow | null> {
+  const db = getDb();
   try {
     const stmt = db.prepare('SELECT * FROM flows WHERE id = ?');
     const flow = stmt.get(id) as Flow | undefined;
@@ -64,6 +66,7 @@ export async function saveFlow(prevState: State, formData: FormData): Promise<St
   }
 
   const { id, name, description, path } = validatedFields.data;
+  const db = getDb();
 
   try {
     if (id) {
@@ -120,6 +123,7 @@ export async function saveFlow(prevState: State, formData: FormData): Promise<St
 }
 
 export async function deleteFlow(id: number): Promise<{ success: boolean, message: string }> {
+  const db = getDb();
   try {
     // Prevent deletion of the default flow (ID 1)
     if (id === 1) {

src/lib/actions/leads.ts

@@ -1,7 +1,7 @@
 
 'use server';
 
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 
 export type Lead = {
   id: number;
@@ -12,6 +12,7 @@ export type Lead = {
 };
 
 export async function getLeads(): Promise<Lead[]> {
+  const db = getDb();
   try {
     const stmt = db.prepare(
       'SELECT id, name, email, phone, createdAt FROM leads ORDER BY createdAt DESC'

src/lib/actions/send-estimate.ts

@@ -4,7 +4,7 @@
 import { z } from 'zod';
 import nodemailer from 'nodemailer';
 import { PDFDocument, rgb, StandardFonts } from 'pdf-lib';
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 import { getEmailTemplate } from './email';
 import type { FormData } from '@/components/cost-estimator/cost-estimator-form';
 
@@ -21,6 +21,7 @@ type InputType = z.infer<typeof inputSchema>;
 
 // Helper to get SMTP settings from the database
 async function getSmtpSettings() {
+    const db = getDb();
     const stmt = db.prepare("SELECT key, value FROM settings WHERE key LIKE 'smtp_%'");
     const settings = stmt.all() as { key: string, value: string }[];
     const config = settings.reduce((acc, setting) => {
@@ -117,6 +118,7 @@ async function createEstimatePdf(data: InputType): Promise<Buffer> {
 }
 
 async function saveLead(name: string, email: string, phone?: string) {
+  const db = getDb();
   try {
     const stmt = db.prepare('INSERT INTO leads (name, email, phone) VALUES (?, ?, ?)');
     stmt.run(name, email, phone || null);

src/lib/actions/user.ts

@@ -1,7 +1,8 @@
+
 'use server';
 
 import { z } from 'zod';
-import db from '@/lib/db';
+import getDb from '@/lib/db';
 import { revalidatePath } from 'next/cache';
 import { auth } from '@/auth';
 
@@ -21,6 +22,7 @@ type User = {
 };
 
 export async function getUserByEmail(email: string): Promise<User | null> {
+    const db = getDb();
     try {
         const stmt = db.prepare('SELECT id, name, email, password FROM users WHERE email = ?');
         const user = stmt.get(email) as User | undefined;
@@ -64,6 +66,7 @@ export async function updateUser(data: UserFormValues): Promise<{ success: boole
   const { name, email, password } = validation.data;
 
   try {
+    const db = getDb();
     const userId = session.user.id;
 
     // Check if the new email is already taken by another user

src/lib/db.ts

@@ -1,17 +1,17 @@
 
 import Database from 'better-sqlite3';
 
-// Use a file-based database in development
+let db: Database.Database;
-const db = new Database('local.db');
+
-db.pragma('journal_mode = WAL');
+function initializeDb() {
+  // Use a file-based database
+  const newDb = new Database('local.db');
+  newDb.pragma('journal_mode = WAL');
 
   // --- SCHEMA CREATION ---
 
-// Drop the users table to ensure a clean slate on every start, avoiding schema conflicts.
-db.exec('DROP TABLE IF EXISTS users');
-
   // Auth.js tables
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS users (
       id TEXT NOT NULL PRIMARY KEY,
       name TEXT,
@@ -22,7 +22,7 @@ db.exec(`
     )
   `);
 
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS accounts (
       userId TEXT NOT NULL,
       type TEXT NOT NULL,
@@ -40,7 +40,7 @@ db.exec(`
     )
   `);
 
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS sessions (
       sessionToken TEXT NOT NULL PRIMARY KEY,
       userId TEXT NOT NULL,
@@ -49,7 +49,7 @@ db.exec(`
     )
   `);
 
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS verification_tokens (
       identifier TEXT NOT NULL,
       token TEXT NOT NULL,
@@ -58,15 +58,14 @@ db.exec(`
     )
   `);
 
-
+  newDb.exec(`
-db.exec(`
     CREATE TABLE IF NOT EXISTS settings (
       key TEXT PRIMARY KEY,
       value TEXT
     )
   `);
 
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS email_templates (
       id INTEGER PRIMARY KEY,
       subject TEXT,
@@ -74,7 +73,7 @@ db.exec(`
     )
   `);
 
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS leads (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       name TEXT NOT NULL,
@@ -84,7 +83,7 @@ db.exec(`
     )
   `);
 
-db.exec(`
+  newDb.exec(`
     CREATE TABLE IF NOT EXISTS flows (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       name TEXT NOT NULL,
@@ -95,15 +94,14 @@ db.exec(`
     )
   `);
 
-
   // --- SEEDING LOGIC ---
   console.log('Running database checks and seeding if necessary...');
 
   // Seed default user
-const userStmt = db.prepare('SELECT id FROM users WHERE email = ?');
+  const userStmt = newDb.prepare('SELECT id FROM users WHERE email = ?');
   const defaultUser = userStmt.get('admin@example.com');
   if (!defaultUser) {
-  const insertUser = db.prepare(
+    const insertUser = newDb.prepare(
       "INSERT INTO users (id, email, password, name) VALUES (?, ?, ?, ?)"
     );
     // Note: In a real app, hash the password!
@@ -112,10 +110,10 @@ if (!defaultUser) {
   }
 
   // Seed default flow
-const flowStmt = db.prepare("SELECT id FROM flows WHERE path = ?");
+  const flowStmt = newDb.prepare("SELECT id FROM flows WHERE path = ?");
   const defaultFlow = flowStmt.get('/');
   if (!defaultFlow) {
-  const insertFlow = db.prepare(
+    const insertFlow = newDb.prepare(
       "INSERT INTO flows (name, description, path) VALUES (?, ?, ?)"
     );
     insertFlow.run('Cost Estimator', 'The main cost estimation tool for clients.', '/');
@@ -123,5 +121,14 @@ if (!defaultFlow) {
   }
 
   console.log('Database setup complete.');
+  return newDb;
+}
 
-export default db;
+function getDb() {
+  if (!db) {
+    db = initializeDb();
+  }
+  return db;
+}
+
+export default getDb;