import { defineConfig, loadEnv } from 'vite'
import react from '@vitejs/plugin-react'
import path from "path"

// https://vitejs.dev/config/
export default defineConfig(({ mode }) => {
  const env = loadEnv(mode, process.cwd(), '')
  return {
    plugins: [react()],
    // Explicitly configure public directory behavior if needed, 
    // but usually 'public' is default.
    publicDir: 'public', 
    optimizeDeps: {
      exclude: ['dagre'], 
      // 'web-worker' needs to be optimized or handled correctly by Vite for elkjs
      include: ['elkjs/lib/elk.bundled.js', 'buffer'] 
    },
    resolve: {
      alias: {
        "@": path.resolve(__dirname, "./src"),
        // Force buffer to resolve to the installed package, not node built-in
        buffer: "buffer", 
      },
    },
    server: {
      // Ensure static files are served correctly
      fs: {
        strict: false,
      },
      proxy: {
        '/api': {
          target: env.VITE_API_TARGET || 'http://localhost:4000',
          changeOrigin: true,
        },
        '/health': {
          target: env.VITE_API_TARGET || 'http://localhost:4000',
          changeOrigin: true,
        },
        '/tasks': {
          target: env.VITE_API_TARGET || 'http://localhost:4000',
          changeOrigin: true,
        },
      },
    },
  }
})