class Bundler::CLI::Gem

# File bundler/cli/gem.rb, line 20
def initialize(options, gem_name, thor)
  @options = options
  @gem_name = resolve_name(gem_name)

  @thor = thor
  thor.behavior = :invoke
  thor.destination_root = nil

  @name = @gem_name
  @target = SharedHelpers.pwd.join(gem_name)

  @extension = options[:ext]

  validate_ext_name if @extension
  validate_rust_builder_rubygems_version if @extension == "rust"
  travis_removal_info
end

# File bundler/cli/gem.rb, line 38
def run
  Bundler.ui.confirm "Creating gem '#{name}'..."

  underscored_name = name.tr("-", "_")
  namespaced_path = name.tr("-", "/")
  constant_name = name.gsub(/-[_-]*(?![_-]|$)/) { "::" }.gsub(/([_-]+|(::)|^)(.|$)/) { $2.to_s + $3.upcase }
  constant_array = constant_name.split("::")
  minitest_constant_name = constant_array.clone.tap {|a| a[-1] = "Test#{a[-1]}" }.join("::") # Foo::Bar => Foo::TestBar

  use_git = Bundler.git_present? && options[:git]

  git_author_name = use_git ? `git config user.name`.chomp : ""
  git_username = use_git ? `git config github.user`.chomp : ""
  git_user_email = use_git ? `git config user.email`.chomp : ""

  github_username = if options[:github_username].nil?
    git_username
  elsif options[:github_username] == false
    ""
  else
    options[:github_username]
  end

  config = {
    :name => name,
    :underscored_name => underscored_name,
    :namespaced_path => namespaced_path,
    :makefile_path => "#{underscored_name}/#{underscored_name}",
    :constant_name => constant_name,
    :constant_array => constant_array,
    :author => git_author_name.empty? ? "TODO: Write your name" : git_author_name,
    :email => git_user_email.empty? ? "TODO: Write your email address" : git_user_email,
    :test => options[:test],
    :ext => extension,
    :exe => options[:exe],
    :bundler_version => bundler_dependency_version,
    :git => use_git,
    :github_username => github_username.empty? ? "[USERNAME]" : github_username,
    :required_ruby_version => required_ruby_version,
    :rust_builder_required_rubygems_version => rust_builder_required_rubygems_version,
    :minitest_constant_name => minitest_constant_name,
  }
  ensure_safe_gem_name(name, constant_array)

  templates = {
    "#{Bundler.preferred_gemfile_name}.tt" => Bundler.preferred_gemfile_name,
    "lib/newgem.rb.tt" => "lib/#{namespaced_path}.rb",
    "lib/newgem/version.rb.tt" => "lib/#{namespaced_path}/version.rb",
    "sig/newgem.rbs.tt" => "sig/#{namespaced_path}.rbs",
    "newgem.gemspec.tt" => "#{name}.gemspec",
    "Rakefile.tt" => "Rakefile",
    "README.md.tt" => "README.md",
    "bin/console.tt" => "bin/console",
    "bin/setup.tt" => "bin/setup",
  }

  executables = %w[
    bin/console
    bin/setup
  ]

  templates.merge!("gitignore.tt" => ".gitignore") if use_git

  if test_framework = ask_and_set_test_framework
    config[:test] = test_framework
    config[:test_framework_version] = TEST_FRAMEWORK_VERSIONS[test_framework]

    case test_framework
    when "rspec"
      templates.merge!(
        "rspec.tt" => ".rspec",
        "spec/spec_helper.rb.tt" => "spec/spec_helper.rb",
        "spec/newgem_spec.rb.tt" => "spec/#{namespaced_path}_spec.rb"
      )
      config[:test_task] = :spec
    when "minitest"
      # Generate path for minitest target file (FileList["test/**/test_*.rb"])
      #   foo     => test/test_foo.rb
      #   foo-bar => test/foo/test_bar.rb
      #   foo_bar => test/test_foo_bar.rb
      paths = namespaced_path.rpartition("/")
      paths[2] = "test_#{paths[2]}"
      minitest_namespaced_path = paths.join("")

      templates.merge!(
        "test/minitest/test_helper.rb.tt" => "test/test_helper.rb",
        "test/minitest/test_newgem.rb.tt" => "test/#{minitest_namespaced_path}.rb"
      )
      config[:test_task] = :test
    when "test-unit"
      templates.merge!(
        "test/test-unit/test_helper.rb.tt" => "test/test_helper.rb",
        "test/test-unit/newgem_test.rb.tt" => "test/#{namespaced_path}_test.rb"
      )
      config[:test_task] = :test
    end
  end

  config[:ci] = ask_and_set_ci
  case config[:ci]
  when "github"
    templates.merge!("github/workflows/main.yml.tt" => ".github/workflows/main.yml")
  when "gitlab"
    templates.merge!("gitlab-ci.yml.tt" => ".gitlab-ci.yml")
  when "circle"
    templates.merge!("circleci/config.yml.tt" => ".circleci/config.yml")
  end

  if ask_and_set(:mit, "Do you want to license your code permissively under the MIT license?",
    "This means that any other developer or company will be legally allowed to use your code " \
    "for free as long as they admit you created it. You can read more about the MIT license " \
    "at https://choosealicense.com/licenses/mit.")
    config[:mit] = true
    Bundler.ui.info "MIT License enabled in config"
    templates.merge!("LICENSE.txt.tt" => "LICENSE.txt")
  end

  if ask_and_set(:coc, "Do you want to include a code of conduct in gems you generate?",
    "Codes of conduct can increase contributions to your project by contributors who " \
    "prefer collaborative, safe spaces. You can read more about the code of conduct at " \
    "contributor-covenant.org. Having a code of conduct means agreeing to the responsibility " \
    "of enforcing it, so be sure that you are prepared to do that. Be sure that your email " \
    "address is specified as a contact in the generated code of conduct so that people know " \
    "who to contact in case of a violation. For suggestions about " \
    "how to enforce codes of conduct, see https://bit.ly/coc-enforcement.")
    config[:coc] = true
    Bundler.ui.info "Code of conduct enabled in config"
    templates.merge!("CODE_OF_CONDUCT.md.tt" => "CODE_OF_CONDUCT.md")
  end

  if ask_and_set(:changelog, "Do you want to include a changelog?",
    "A changelog is a file which contains a curated, chronologically ordered list of notable " \
    "changes for each version of a project. To make it easier for users and contributors to" \
    " see precisely what notable changes have been made between each release (or version) of" \
    " the project. Whether consumers or developers, the end users of software are" \
    " human beings who care about what's in the software. When the software changes, people " \
    "want to know why and how. see https://keepachangelog.com")
    config[:changelog] = true
    Bundler.ui.info "Changelog enabled in config"
    templates.merge!("CHANGELOG.md.tt" => "CHANGELOG.md")
  end

  config[:linter] = ask_and_set_linter
  case config[:linter]
  when "rubocop"
    config[:linter_version] = rubocop_version
    Bundler.ui.info "RuboCop enabled in config"
    templates.merge!("rubocop.yml.tt" => ".rubocop.yml")
  when "standard"
    config[:linter_version] = standard_version
    Bundler.ui.info "Standard enabled in config"
    templates.merge!("standard.yml.tt" => ".standard.yml")
  end

  templates.merge!("exe/newgem.tt" => "exe/#{name}") if config[:exe]

  if extension == "c"
    templates.merge!(
      "ext/newgem/extconf-c.rb.tt" => "ext/#{name}/extconf.rb",
      "ext/newgem/newgem.h.tt" => "ext/#{name}/#{underscored_name}.h",
      "ext/newgem/newgem.c.tt" => "ext/#{name}/#{underscored_name}.c"
    )
  end

  if extension == "rust"
    templates.merge!(
      "Cargo.toml.tt" => "Cargo.toml",
      "ext/newgem/Cargo.toml.tt" => "ext/#{name}/Cargo.toml",
      "ext/newgem/extconf-rust.rb.tt" => "ext/#{name}/extconf.rb",
      "ext/newgem/src/lib.rs.tt" => "ext/#{name}/src/lib.rs",
    )
  end

  if target.exist? && !target.directory?
    Bundler.ui.error "Couldn't create a new gem named `#{gem_name}` because there's an existing file named `#{gem_name}`."
    exit Bundler::BundlerError.all_errors[Bundler::GenericSystemCallError]
  end

  if use_git
    Bundler.ui.info "Initializing git repo in #{target}"
    require "shellwords"
    `git init #{target.to_s.shellescape}`

    config[:git_default_branch] = File.read("#{target}/.git/HEAD").split("/").last.chomp
  end

  templates.each do |src, dst|
    destination = target.join(dst)
    thor.template("newgem/#{src}", destination, config)
  end

  executables.each do |file|
    path = target.join(file)
    executable = (path.stat.mode | 0o111)
    path.chmod(executable)
  end

  if use_git
    Dir.chdir(target) do
      `git add .`
    end
  end

  # Open gemspec in editor
  open_editor(options["edit"], target.join("#{name}.gemspec")) if options[:edit]

  Bundler.ui.info "Gem '#{name}' was successfully created. " \
    "For more information on making a RubyGem visit https://bundler.io/guides/creating_gem.html"
end