import express from 'express';
import cors from 'cors';
import path from 'path';
import authRouter from './routes/auth';
import displayApiRouter from './routes/display-api';
import mqttBrokersRouter from './routes/mqtt-brokers';
import mqttTopicsRouter from './routes/mqtt-topics';
import pgSourcesRouter from './routes/pg-sources';
import datapointsRouter from './routes/datapoints';
import displaysRouter from './routes/displays';
import layoutsRouter from './routes/layouts';
import { authMiddleware } from './middleware/auth';

export function createApp(): express.Application {
  const app = express();

  app.use(cors());
  app.use(express.json());

  // Health check
  app.get('/health', (_req, res) => {
    res.json({ status: 'ok', timestamp: new Date().toISOString() });
  });

  // Public routes
  app.use('/api/auth', authRouter);
  app.use('/api/display', displayApiRouter);

  // Protected management routes
  app.use('/api/mqtt/brokers/:brokerId/topics', authMiddleware, mqttTopicsRouter);
  app.use('/api/mqtt/brokers', authMiddleware, mqttBrokersRouter);
  app.use('/api/pg/sources', authMiddleware, pgSourcesRouter);
  app.use('/api/datapoints', authMiddleware, datapointsRouter);
  app.use('/api/displays', authMiddleware, displaysRouter);
  app.use('/api/layouts', authMiddleware, layoutsRouter);

  // Serve frontend/dist as static files with SPA fallback
  const frontendDist = path.join(__dirname, '..', '..', '..', 'frontend', 'dist');
  app.use(express.static(frontendDist));
  app.get('*', (_req, res) => {
    res.sendFile(path.join(frontendDist, 'index.html'));
  });

  return app;
}