import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'

// In Docker the backend is reachable under its service name, locally under localhost.
const API_TARGET = process.env.VITE_API_TARGET || 'http://localhost:4000'

export default defineConfig({
  plugins: [react()],
  server: {
    host: '0.0.0.0',
    port: 5173,
    strictPort: true,
    // Needed for file-watching to work through a bind mount inside Docker.
    watch: { usePolling: true, interval: 300 },
    proxy: {
      '/api': { target: API_TARGET, changeOrigin: true },
      '/ws': { target: API_TARGET, changeOrigin: true, ws: true },
    },
  },
})