class ViteRuby::CLI::Install

def call(**)
  $stdout.sync = true
  say 'Creating binstub'
  ViteRuby.commands.install_binstubs
  say 'Creating configuration files'
  create_configuration_files
  say 'Installing sample files'
  install_sample_files
  say 'Installing js dependencies'
  install_js_dependencies
  say 'Adding files to .gitignore'
  install_gitignore
  say "\nVite ⚡️ Ruby successfully installed! 🎉"
end

def copy_template(path, to:)
  cp TEMPLATES_PATH.join(path), to
end

def create_configuration_files
  copy_template 'config/vite.config.ts', to: root.join('vite.config.ts')
  append root.join('Procfile.dev'), 'vite: bin/vite dev'
  setup_app_files
  ViteRuby.reload_with(config_path: config.config_path)
end

def install_gitignore
  return unless (gitignore_file = root.join('.gitignore')).exist?
  append(gitignore_file, <<~GITIGNORE)
    # Vite Ruby
    /public/vite*
    node_modules
    # Vite uses dotenv and suggests to ignore local-only env files. See
    # https://vitejs.dev/guide/env-and-mode.html#env-files
    *.local
  GITIGNORE
end

def install_js_dependencies
  package_json = root.join('package.json')
  write(package_json, '{}') unless package_json.exist?
  deps = js_dependencies.join(' ')
  run_with_capture("#{ npm_install } -D #{ deps }", stdin_data: "\n")
end

def install_sample_files
  copy_template 'entrypoints/application.js', to: config.resolved_entrypoints_dir.join('application.js')
end

def js_dependencies
  [
    "vite@#{ ViteRuby::DEFAULT_VITE_VERSION }",
    "vite-plugin-ruby@#{ ViteRuby::DEFAULT_PLUGIN_VERSION }",
  ]
end

def npm_install
  return 'yarn add' if root.join('yarn.lock').exist?
  return 'pnpm install' if root.join('pnpm-lock.yaml').exist?
  'npm install'
end

def root
  @root ||= silent_warnings { config.root }
end

def run_with_capture(*args, **options)
  Dir.chdir(root) do
    _, stderr, status = ViteRuby::IO.capture(*args, **options)
    say(stderr) unless status.success? || stderr.empty?
  end
end

def say(*args)
  $stdout.puts(*args)
end

def setup_app_files
  copy_template 'config/vite.json', to: config.config_path
  if (rackup_file = root.join('config.ru')).exist?
    inject_line_after_last rackup_file, 'require', 'use(ViteRuby::DevServerProxy, ssl_verify_none: true) if ViteRuby.run_proxy?'
  end
end

def silent_warnings
  old_stderr = $stderr
  $stderr = StringIO.new
  yield
ensure
  $stderr = old_stderr
end