import { defineConfig } from 'vitest/config'
import { devtools } from '@tanstack/devtools-vite'
import { tanstackStart } from '@tanstack/react-start/plugin/vite'
import viteReact from '@vitejs/plugin-react'
import viteTsConfigPaths from 'vite-tsconfig-paths'
import { fileURLToPath, URL } from 'node:url'
import tailwindcss from '@tailwindcss/vite'
import { nitro } from 'nitro/vite'
import { copyFileSync, mkdirSync, existsSync } from 'node:fs'
import { resolve } from 'node:path'

const isElectronBuild = process.env.BUILD_TARGET === 'electron'

// Copy CanvasKit WASM files to public directory for runtime loading
function copyCanvasKitWasm() {
  const wasmDir = resolve('public/canvaskit')
  if (!existsSync(wasmDir)) mkdirSync(wasmDir, { recursive: true })
  const ckDir = resolve('node_modules/canvaskit-wasm/bin')
  const files = ['canvaskit.wasm']
  for (const file of files) {
    const src = resolve(ckDir, file)
    const dest = resolve(wasmDir, file)
    if (existsSync(src) && !existsSync(dest)) {
      copyFileSync(src, dest)
    }
  }
}
copyCanvasKitWasm()

const config = defineConfig({
  test: {
    teardownTimeout: 1000,
  },
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url)),
    },
  },
  assetsInclude: ['**/*.wasm'],
  plugins: [
    devtools(),
    nitro({
      rollupConfig: { external: [/^@sentry\//, 'canvas', 'jsdom', 'cssstyle', 'canvaskit-wasm'] },
      serverDir: './server',
      ...(isElectronBuild ? { preset: 'node-server' } : {}),
    }),
    // this is the plugin that enables path aliases
    viteTsConfigPaths({
      projects: ['./tsconfig.json'],
    }),
    tailwindcss(),
    tanstackStart(),
    viteReact(),
  ],
})

export default config