const express = require('express');
const cors = require('cors');

const env = require('./config/env');
const apiRoutes = require('./routes');
const healthRoutes = require('./routes/health.routes');
const { errorHandler, notFoundHandler } = require('./middleware/errorHandler');

const app = express();
const allowAllOrigins = env.frontendOrigins.includes('*');

function isLocalDevOrigin(origin) {
  try {
    const parsed = new URL(origin);
    const hostname = String(parsed.hostname || '').toLowerCase();
    const protocol = String(parsed.protocol || '').toLowerCase();

    if (!['http:', 'https:'].includes(protocol)) {
      return false;
    }

    return ['localhost', '127.0.0.1', '::1'].includes(hostname);
  } catch (_error) {
    return false;
  }
}

const corsOptions = {
  origin: '*',
};

app.use(cors(corsOptions));
app.use(express.json({ limit: '8mb' }));

app.get('/', (_req, res) => {
  res.json({
    success: true,
    message: 'Care People backend is running.',
    data: {
      apiPrefix: '/api/v1',
      health: '/health',
    },
    errorCode: null,
  });
});

app.use('/health', healthRoutes);
app.use('/api/v1/', apiRoutes);
app.use(notFoundHandler);
app.use(errorHandler);

module.exports = app;