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')
+    }
+  }
+})