import { GluegunCommand } from 'gluegun'

const command: GluegunCommand = {
  name: 'generate',
  alias: ['g'],
  description: 'Generate <%= type %> from template',

  run: async (toolbox) => {
    const { template, print, parameters, filesystem, strings } = toolbox

    // Get name from parameters
    const name = parameters.first

    if (!name) {
      print.error('Name is required')
      print.info('Usage: <%= cliName %> generate <name>')
      return
    }

    // Convert to different cases
    const pascalName = strings.pascalCase(name)
    const camelName = strings.camelCase(name)
    const kebabName = strings.kebabCase(name)

    // Generate from template
    const target = `<%= outputPath %>/${kebabName}.<%= extension %>`

    try {
      await template.generate({
        template: '<%= templateFile %>',
        target,
        props: {
          name: pascalName,
          camelName,
          kebabName,
          timestamp: new Date().toISOString()
        }
      })

      print.success(`Generated <%= type %>: ${target}`)

      // Optional: Add to index
      <% if (addToIndex) { %>
      const indexPath = '<%= outputPath %>/index.ts'
      if (filesystem.exists(indexPath)) {
        await filesystem.append(indexPath, `export { ${pascalName} } from './${kebabName}'\n`)
        print.info(`Added export to ${indexPath}`)
      }
      <% } %>

    } catch (error) {
      print.error(`Failed to generate <%= type %>: ${error.message}`)
    }
  }
}

module.exports = command