feat(module): add support for vue using unplugin (#2416)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

src/plugins/components.ts

@@ -0,0 +1,59 @@
+import { join, normalize } from 'pathe'
+import type { UnpluginContextMeta, UnpluginOptions } from 'unplugin'
+import { globSync } from 'tinyglobby'
+import AutoImportComponents from 'unplugin-vue-components'
+
+import { runtimeDir } from '../unplugin'
+import type { NuxtUIOptions } from '../unplugin'
+
+/**
+ * This plugin adds all the Nuxt UI components as auto-imports.
+ */
+export default function ComponentImportPlugin(framework: UnpluginContextMeta['framework'], options: NuxtUIOptions & { prefix: NonNullable<NuxtUIOptions['prefix']> }) {
+  const components = globSync('**/*.vue', { cwd: join(runtimeDir, 'components') })
+  const componentNames = new Set(components.map(c => `${options.prefix}${c.replace(/\.vue$/, '')}`))
+
+  const overrides = globSync('**/*.vue', { cwd: join(runtimeDir, 'vue/components') })
+  const overrideNames = new Set(overrides.map(c => `${options.prefix}${c.replace(/\.vue$/, '')}`))
+
+  return [
+    /**
+     * This plugin aims to ensure we override certain components with Vue-compatible versions:
+     * <UIcon> and <ULink> currently.
+     */
+    {
+      name: 'nuxt:ui:components',
+      enforce: 'pre',
+      resolveId(id, importer) {
+        // only apply to runtime nuxt ui components
+        if (!importer || !normalize(importer).includes(runtimeDir)) {
+          return
+        }
+
+        // only apply to relative imports
+        if (!RELATIVE_IMPORT_RE.test(id)) {
+          return
+        }
+
+        const filename = id.match(/([^/]+)\.vue$/)?.[1]
+        if (filename && overrideNames.has(`${options.prefix}${filename}`)) {
+          return join(runtimeDir, 'vue/components', `${filename}.vue`)
+        }
+      }
+    },
+    AutoImportComponents[framework]({
+      dts: options.dts ?? true,
+      exclude: [/[\\/]node_modules[\\/](?!\.pnpm|@nuxt\/ui)/, /[\\/]\.git[\\/]/, /[\\/]\.nuxt[\\/]/],
+      resolvers: [
+        (componentName) => {
+          if (overrideNames.has(componentName))
+            return { name: 'default', from: join(runtimeDir, 'vue/components', `${componentName.slice(options.prefix.length)}.vue`) }
+          if (componentNames.has(componentName))
+            return { name: 'default', from: join(runtimeDir, 'components', `${componentName.slice(options.prefix.length)}.vue`) }
+        }
+      ]
+    })
+  ] satisfies UnpluginOptions[]
+}
+
+const RELATIVE_IMPORT_RE = /^\.{1,2}\//