feat(cli): init command

cli/commands/init.mjs

@@ -0,0 +1,50 @@
+import { existsSync, promises as fsp } from 'node:fs'
+import { resolve } from 'pathe'
+import { defineCommand } from 'citty'
+import { consola } from 'consola'
+import { camelCase, snakeCase } from 'scule'
+import templates from '../utils/templates.mjs'
+
+export default defineCommand({
+  meta: {
+    name: 'init',
+    description: 'Init a new component.'
+  },
+  args: {
+    name: {
+      type: 'positional',
+      required: true,
+      description: 'Name of the component.'
+    }
+  },
+  async setup ({ args }) {
+    const name = args.name
+    if (!name) {
+      consola.error('name argument is missing!')
+      process.exit(1)
+    }
+
+    const path = resolve('.')
+
+    for (const template of Object.keys(templates)) {
+      const { filename, contents } = templates[template]({ name })
+      const filePath = resolve(path, filename)
+
+      if (existsSync(filePath)) {
+        consola.error(`🚨 ${filePath} already exists!`)
+        continue
+      }
+
+      await fsp.writeFile(filePath, contents.trim() + '\n')
+
+      consola.success(`🪄 Generated ${filePath}!`)
+    }
+
+    const themePath = resolve(path, 'src/theme/index.ts')
+    const theme = await fsp.readFile(themePath, 'utf-8')
+    const contents = `export { default as ${camelCase(name)} } from './${snakeCase(name)}'`
+    if (!theme.includes(contents)) {
+      await fsp.writeFile(themePath, theme.trim() + '\n' + contents + '\n')
+    }
+  }
+})

cli/index.mjs

@@ -0,0 +1,14 @@
+import { defineCommand, runMain } from 'citty'
+import init from './commands/init.mjs'
+
+const main = defineCommand({
+  meta: {
+    name: 'nuxtui',
+    description: 'Nuxt UI CLI'
+  },
+  subCommands: {
+    init
+  }
+})
+
+runMain(main)

cli/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "nuxt-ui-cli",
+  "exports": {
+    ".": "./index.mjs"
+  },
+  "dependencies": {
+    "citty": "^0.1.6",
+    "consola": "^3.2.3",
+    "pathe": "^1.1.2",
+    "scule": "^1.3.0"
+  }
+}

cli/utils/templates.mjs

@@ -0,0 +1,114 @@
+import { splitByCase, upperFirst, camelCase, snakeCase } from 'scule'
+
+const component = ({ name }) => {
+  const upperName = splitByCase(name).map(p => upperFirst(p))
+  const camelName = camelCase(name)
+  const snakeName = snakeCase(name)
+
+  return {
+    filename: `src/runtime/components/${upperName}.vue`,
+    contents: `
+<script lang="ts">
+import { tv, type VariantProps } from 'tailwind-variants'
+import type { AppConfig } from '@nuxt/schema'
+import _appConfig from '#build/app.config'
+import theme from '#build/ui/${snakeName}'
+
+const appConfig = _appConfig as AppConfig & { ui: { ${camelName}: Partial<typeof theme> } }
+
+const ${camelName} = tv({ extend: tv(theme), ...(appConfig.ui?.${camelName} || {}) })
+
+type ${upperName}Variants = VariantProps<typeof ${camelName}>
+
+export interface ${upperName}Props {
+  class?: any
+  ui?: Partial<typeof ${camelName}.slots>
+}
+
+export interface ${upperName}Slots {
+}
+</script>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+
+const props = defineProps<${upperName}Props>()
+const slots = defineSlots<${upperName}Slots>()
+
+const ui = computed(() => tv({ extend: ${camelName}, slots: props.ui })())
+</script>
+
+<template>
+  <div />
+</template>
+    `
+  }
+}
+
+const theme = ({ name }) => {
+  const snakeName = snakeCase(name)
+
+  return {
+    filename: `src/theme/${snakeName}.ts`,
+    contents: `
+export default {
+  slots: {
+    root: ''
+  },
+  variants: {
+
+  },
+  defaultVariants: {
+
+  }
+}
+    `
+  }
+}
+
+const page = ({ name }) => {
+  const upperName = splitByCase(name).map(p => upperFirst(p))
+  const snakeName = snakeCase(name)
+
+  return {
+    filename: `playground/pages/${snakeName}.vue`,
+    contents: `
+<template>
+  <div>
+    <U${upperName} />
+  </div>
+</template>
+    `
+  }
+}
+
+const test = ({ name }) => {
+  const upperName = splitByCase(name).map(p => upperFirst(p))
+
+  return {
+    filename: `test/components/${upperName}.spec.ts`,
+    contents: `
+import { describe, it, expect } from 'vitest'
+import ${upperName}, { type ${upperName}Props } from '../../src/runtime/components/${upperName}.vue'
+import ComponentRender from '../component-render'
+
+describe('${upperName}', () => {
+  it.each([
+    ['basic case', {}],
+    ['with class', { props: { class: '' } }],
+    ['with ui', { props: { ui: {} } }]
+  ])('renders %s correctly', async (nameOrHtml: string, options: { props?: ${upperName}Props, slots?: any }) => {
+    const html = await ComponentRender(nameOrHtml, options, ${upperName})
+    expect(html).toMatchSnapshot()
+  })
+})
+    `
+  }
+}
+
+export default {
+  component,
+  theme,
+  page,
+  test
+}