vite.config.ts

import { defineConfig, Plugin, ConfigEnv } from 'vite';
import react from '@vitejs/plugin-react';
import fs from 'fs';
import path from 'path';

const particleWasmPlugin: Plugin | undefined = {
    name: 'particle-wasm',
    apply: (_, env: ConfigEnv) => {
        return env.mode === 'development';
    },
    buildStart: () => {
        const copiedPath = path.join(
            __dirname,
            'node_modules/@particle-network/thresh-sig/wasm/thresh_sig_wasm_bg.wasm'
        );
        const dir = path.join(__dirname, 'node_modules/.vite/wasm');
        const resultPath = path.join(dir, 'thresh_sig_wasm_bg.wasm');
        if (!fs.existsSync(dir)) {
            fs.mkdirSync(dir, { recursive: true });
        }
        fs.copyFileSync(copiedPath, resultPath);
    },
};

export default defineConfig({
  plugins: [react(), particleWasmPlugin],
  server: {
    host: '0.0.0.0',
  },
  define: {
    'process.env': process.env
  },
  build: {
    target: 'esnext', // you can also use 'es2020' here
  },
  optimizeDeps: {
    esbuildOptions: {
      target: 'esnext', // you can also use 'es2020' here
    },
  },
});