class Bundler::CLI::Gem

def initialize(options, gem_name, thor)
  @options = options
  @gem_name = gem_name
  @thor = thor
end

def run
  if options[:ext] && gem_name.index('-')
    Bundler.ui.error "You have specified a gem name which does not conform to the \n" \
                     "naming guidelines for C extensions. For more information, \n" \
                     "see the 'Extension Naming' section at the following URL:\n" \
                     "http://guides.rubygems.org/gems-with-extensions/\n"
    exit 1
  end
  name = gem_name.chomp("/") # remove trailing slash if present
  underscored_name = name.tr('-', '_')
  namespaced_path = name.tr('-', '/')
  target = File.join(Dir.pwd, name)
  constant_name = name.split('_').map{|p| p[0..0].upcase + p[1..-1] }.join
  constant_name = constant_name.split('-').map{|q| q[0..0].upcase + q[1..-1] }.join('::') if constant_name =~ /-/
  constant_array = constant_name.split('::')
  git_user_name = `git config user.name`.chomp
  git_user_email = `git config user.email`.chomp
  opts = {
    :name             => name,
    :underscored_name => underscored_name,
    :namespaced_path  => namespaced_path,
    :constant_name    => constant_name,
    :constant_array   => constant_array,
    :author           => git_user_name.empty? ? "TODO: Write your name" : git_user_name,
    :email            => git_user_email.empty? ? "TODO: Write your email address" : git_user_email,
    :test             => options[:test],
    :ext              => options[:ext]
  }
  gemspec_dest = File.join(target, "#{name}.gemspec")
  thor.template(File.join("newgem/Gemfile.tt"),               File.join(target, "Gemfile"),                             opts)
  thor.template(File.join("newgem/Rakefile.tt"),              File.join(target, "Rakefile"),                            opts)
  thor.template(File.join("newgem/LICENSE.txt.tt"),           File.join(target, "LICENSE.txt"),                         opts)
  thor.template(File.join("newgem/README.md.tt"),             File.join(target, "README.md"),                           opts)
  thor.template(File.join("newgem/gitignore.tt"),             File.join(target, ".gitignore"),                          opts)
  thor.template(File.join("newgem/newgem.gemspec.tt"),        gemspec_dest,                                             opts)
  thor.template(File.join("newgem/lib/newgem.rb.tt"),         File.join(target, "lib/#{namespaced_path}.rb"),           opts)
  thor.template(File.join("newgem/lib/newgem/version.rb.tt"), File.join(target, "lib/#{namespaced_path}/version.rb"),   opts)
  if options[:bin]
    thor.template(File.join("newgem/bin/newgem.tt"),          File.join(target, 'bin', name),                           opts)
  end
  case options[:test]
  when 'rspec'
    thor.template(File.join("newgem/rspec.tt"),               File.join(target, ".rspec"),                              opts)
    thor.template(File.join("newgem/spec/spec_helper.rb.tt"), File.join(target, "spec/spec_helper.rb"),                 opts)
    thor.template(File.join("newgem/spec/newgem_spec.rb.tt"), File.join(target, "spec/#{namespaced_path}_spec.rb"),     opts)
  when 'minitest'
    thor.template(File.join("newgem/test/minitest_helper.rb.tt"), File.join(target, "test/minitest_helper.rb"),         opts)
    thor.template(File.join("newgem/test/test_newgem.rb.tt"),     File.join(target, "test/test_#{namespaced_path}.rb"), opts)
  end
  if options[:test]
    thor.template(File.join("newgem/.travis.yml.tt"),         File.join(target, ".travis.yml"),            opts)
  end
  if options[:ext]
    thor.template(File.join("newgem/ext/newgem/extconf.rb.tt"), File.join(target, "ext/#{name}/extconf.rb"), opts)
    thor.template(File.join("newgem/ext/newgem/newgem.h.tt"), File.join(target, "ext/#{name}/#{underscored_name}.h"), opts)
    thor.template(File.join("newgem/ext/newgem/newgem.c.tt"), File.join(target, "ext/#{name}/#{underscored_name}.c"), opts)
  end
  Bundler.ui.info "Initializing git repo in #{target}"
  Dir.chdir(target) { `git init`; `git add .` }
  if options[:edit]
    thor.run("#{options["edit"]} \"#{gemspec_dest}\"")  # Open gemspec in editor
  end
end