feat: load main and preview storybook config from nuxt config

packages/nuxt-module/src/config.ts

@@ -0,0 +1,44 @@
+import { resolve } from 'node:path'
+
+export function generateConfigFiles(configDir: string) {
+  const isTsProject = isTypescriptProject()
+  const extension = isTsProject ? '.ts' : '.js'
+  const mainFile = resolve(configDir, 'main' + extension)
+  const previewFile = resolve(configDir, 'preview' + extension)
+}
+
+function generateMainConfig({ useTypescript }) {
+  const preamble = useTypescript
+    ? ``
+    : `
+/** @type { import('storybook-vue').StorybookConfig } */
+const config = {
+`
+  return (
+    preamble +
+    `
+  stories: [
+    '../components/**/*.mdx',
+    '../components/**/*.stories.@(js|jsx|ts|tsx|mdx)',
+  ],
+  addons: [
+    '@storybook/addon-links',
+    '@storybook/addon-essentials',
+    '@chromatic-com/storybook',
+  ],
+  framework: {
+    name: '@storybook-vue/nuxt',
+    options: {},
+  },
+  docs: {
+    autodocs: 'tag',
+  },
+}
+export default config
+  `
+  )
+}
+
+function isTypescriptProject() {
+  return true
+}

packages/nuxt-module/src/storybook.ts

@@ -10,6 +10,8 @@ import {
 } from '@storybook/core-common'
 import { buildDevStandalone, withTelemetry } from '@storybook/core-server'
 import storybookPackageJson from '@storybook/core-server/package.json'
+import { generateConfigFiles } from './config'
+import fs from 'node:fs'
 
 const buildLogger = logger.withTag('build')
 
@@ -51,10 +53,15 @@ export async function setupStorybook(options: ModuleOptions, nuxt: Nuxt) {
   })
 
   const projectDir = resolve(nuxt.options.rootDir)
+  let configDir = resolve(projectDir, './.storybook')
+  if (!fs.existsSync(configDir)) {
+    configDir = resolve(nuxt.options.buildDir, './.storybook')
+    generateConfigFiles(configDir)
+  }
 
   const storybookOptions = {
     port: storybookServerPort,
-    configDir: resolve(projectDir, './.storybook'),
+    configDir: configDir,
     configType: 'DEVELOPMENT',
     cache: storybookCache,
     packageJson: storybookPackageJson as PackageJson,