import { resolve } from 'path'
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueTypes from 'vite-plugin-vue-type-imports'
import svgLoader from 'vite-svg-loader'
import AutoImport from 'unplugin-auto-import/vite'
import replace from '@rollup/plugin-replace'
import copy from 'rollup-plugin-copy'
import pkg from './package.json'

// https://vitejs.dev/config/
export default defineConfig({
  resolve: {
    alias: {
      '~': resolve('src'),
    },
    dedupe: ['vue'],
    extensions: ['.ts', '.vue'],
  },
  build: {
    minify: 'esbuild',
    emptyOutDir: false,
    lib: {
      formats: ['es', 'iife', 'cjs'],
      entry: resolve(__dirname, 'src/index.ts'),
      name: 'vueFlow',
    },
    rollupOptions: {
      // make sure to externalize deps that shouldn't be bundled
      // into your library
      external: ['vue'],
      output: {
        dir: './dist',
        // Provide global variables to use in the UMD build
        // for externalized deps
        globals: {
          vue: 'Vue',
        },
        plugins: [
          replace({
            __VUE_FLOW_VERSION__: JSON.stringify(pkg.version),
            preventAssignment: true,
          }),
          copy({
            targets: [
              {
                src: 'src/theme-default.css',
                dest: 'dist',
              },
            ],
          }),
        ],
      },
    },
  },
  plugins: [
    vue(),
    vueTypes(),
    svgLoader(),
    // https://github.com/antfu/unplugin-auto-import
    AutoImport({
      imports: ['vue', '@vueuse/core'],
      dts: 'src/auto-imports.d.ts',
    }),
  ],
  optimizeDeps: {
    include: ['vue', '@vueuse/core', '@braks/revue-draggable', 'd3-zoom', 'd3-selection'],
  },
})