Backend is here. Default admin is created if needed.

server/src/index.ts

@@ -0,0 +1,76 @@
+import express from 'express';
+import cors from 'cors';
+import dotenv from 'dotenv';
+import authRoutes from './routes/auth';
+import exerciseRoutes from './routes/exercises';
+import sessionRoutes from './routes/sessions';
+import planRoutes from './routes/plans';
+import aiRoutes from './routes/ai';
+import bcrypt from 'bcryptjs';
+import { PrismaClient } from '@prisma/client';
+
+dotenv.config();
+
+const app = express();
+
+// -------------------------------------------------------------------
+// Ensure a default admin user exists on startup
+// -------------------------------------------------------------------
+async function ensureAdminUser() {
+    const adminEmail = process.env.ADMIN_EMAIL || 'admin@gymflow.ai';
+    const adminPassword = process.env.ADMIN_PASSWORD || 'admin123';
+
+    const prisma = new PrismaClient();
+
+    // Check for existing admin
+    const existingAdmin = await prisma.user.findFirst({
+        where: { role: 'ADMIN' },
+    });
+
+    if (existingAdmin) {
+        console.info(`✅  Admin user already exists (email: ${existingAdmin.email})`);
+        await prisma.$disconnect();
+        return;
+    }
+
+    // Create admin user
+    const hashed = await bcrypt.hash(adminPassword, 10);
+    const admin = await prisma.user.create({
+        data: {
+            email: adminEmail,
+            password: hashed,
+            role: 'ADMIN',
+            profile: { create: { weight: 70 } },
+        },
+    });
+
+    console.info(`🛠️  Created default admin user (email: ${admin.email})`);
+    await prisma.$disconnect();
+}
+
+const PORT = process.env.PORT || 3001;
+
+app.use(cors());
+app.use(express.json());
+
+// Routes
+app.use('/api/auth', authRoutes);
+app.use('/api/exercises', exerciseRoutes);
+app.use('/api/sessions', sessionRoutes);
+app.use('/api/plans', planRoutes);
+app.use('/api/ai', aiRoutes);
+
+app.get('/', (req, res) => {
+    res.send('GymFlow AI API is running');
+});
+
+ensureAdminUser()
+    .catch((e) => {
+        console.error('❌  Failed to ensure admin user:', e);
+        process.exit(1);
+    })
+    .finally(() => {
+        app.listen(PORT, () => {
+            console.log(`Server running on port ${PORT}`);
+        });
+    });