perf: tree-shake dependencies from server (#1647)

nuxt.config.ts

@@ -128,10 +128,10 @@ export default defineNuxtConfig({
       },
     },
   },
-  build: {
-    transpile: ['masto'],
-  },
   nitro: {
+    alias: {
+      'isomorphic-ws': 'unenv/runtime/mock/proxy',
+    },
     esbuild: {
       options: {
         target: 'esnext',
@@ -143,12 +143,37 @@ export default defineNuxtConfig({
       ignore: ['/settings'],
     },
   },
+  sourcemap: !isDevelopment,
   hooks: {
     'nitro:config': function (config) {
       const nuxt = useNuxt()
       config.virtual = config.virtual || {}
       config.virtual['#storage-config'] = `export const driver = ${JSON.stringify(nuxt.options.appConfig.storage.driver)}`
     },
+    'vite:extendConfig': function (config, { isServer }) {
+      if (isServer) {
+        const alias = config.resolve!.alias as Record<string, string>
+        for (const dep of ['eventemitter3', 'isomorphic-ws'])
+          alias[dep] = resolve('./mocks/class')
+        for (const dep of ['shiki-es', 'fuse.js'])
+          alias[dep] = 'unenv/runtime/mock/proxy'
+        const resolver = createResolver(import.meta.url)
+
+        config.plugins!.unshift({
+          name: 'mock',
+          enforce: 'pre',
+          resolveId(id) {
+            if (id.match(/(^|\/)(@tiptap)\//))
+              return resolver.resolve('./mocks/tiptap.ts')
+            if (id.match(/(^|\/)(prosemirror)/))
+              return resolver.resolve('./mocks/prosemirror.ts')
+          },
+        })
+
+        const noExternal = config.ssr!.noExternal as string[]
+        noExternal.push('masto', '@fnando/sparkline', 'vue-i18n', '@mastojs/ponyfills')
+      }
+    },
   },
   app: {
     keepalive: true,