# frozen_string_literal: true

require 'pathname'
require 'forwardable'

require_relative 'gitlab_edition'

module Gitlab
  class << self
    extend Forwardable

    def_delegators :GitlabEdition, :root, :extensions, :ee?, :ee, :jh?, :jh
  end

  def self.version_info
    Gitlab::VersionInfo.parse(Gitlab::VERSION)
  end

  def self.current_milestone
    v = version_info
    "#{v.major}.#{v.minor}"
  end

  def self.pre_release?
    VERSION.include?('pre')
  end

  def self.config
    Settings
  end

  def self.host_with_port
    "#{self.config.gitlab.host}:#{self.config.gitlab.port}"
  end

  def self.revision
    @_revision ||= if File.exist?(root.join("REVISION"))
                     File.read(root.join("REVISION")).strip.freeze
                   else
                     result = Gitlab::Popen.popen_with_detail(
                       %W[#{config.git.bin_path} log --pretty=format:%h --abbrev=11 -n 1]
                     )

                     if result.status.success?
                       result.stdout.chomp.freeze
                     else
                       "Unknown"
                     end
                   end
  end

  APP_DIRS_PATTERN = %r{^/?(app|config|ee|lib|spec|\(\w*\))}
  VERSION = File.read(root.join("VERSION")).strip.freeze
  INSTALLATION_TYPE = File.read(root.join("INSTALLATION_TYPE")).strip.freeze
  HTTP_PROXY_ENV_VARS = %w[http_proxy https_proxy HTTP_PROXY HTTPS_PROXY].freeze

  def self.simulate_com?
    return false unless Rails.env.development?

    Gitlab::Utils.to_boolean(ENV['GITLAB_SIMULATE_SAAS'])
  end

  def self.com?
    # Check `gl_subdomain?` as well to keep parity with gitlab.com
    simulate_com? || Gitlab.config.gitlab.url == Gitlab::Saas.com_url || gl_subdomain?
  end

  def self.com_except_jh?
    com? && !jh?
  end

  def self.com
    yield if com?
  end

  def self.staging?
    Gitlab.config.gitlab.url == Gitlab::Saas.staging_com_url
  end

  def self.canary?
    Gitlab::Utils.to_boolean(ENV['CANARY'])
  end

  def self.com_and_canary?
    com? && canary?
  end

  def self.com_but_not_canary?
    com? && !canary?
  end

  def self.org?
    Gitlab.config.gitlab.url == Gitlab::Saas.dev_url
  end

  def self.gl_subdomain?
    Gitlab::Saas.subdomain_regex === Gitlab.config.gitlab.url
  end

  def self.org_or_com?
    org? || com?
  end

  def self.dev_or_test_env?
    Rails.env.development? || Rails.env.test?
  end

  def self.http_proxy_env?
    HTTP_PROXY_ENV_VARS.any? { |name| ENV[name] }
  end

  def self.process_name
    return 'sidekiq' if Gitlab::Runtime.sidekiq?
    return 'console' if Gitlab::Runtime.console?
    return 'test' if Rails.env.test?

    'web'
  end

  def self.maintenance_mode?
    return false unless ::Gitlab::CurrentSettings.current_application_settings?

    # `maintenance_mode` column was added to the `current_settings` table in 13.2
    # When upgrading from < 13.2 to >=13.8 `maintenance_mode` will not be
    # found in settings.
    # `Gitlab::CurrentSettings#uncached_application_settings` in
    # lib/gitlab/current_settings.rb is expected to handle such cases, and use
    # the default value for the setting instead, but in this case, it doesn't,
    # see https://gitlab.com/gitlab-org/gitlab/-/issues/321836
    # As a work around, we check if the setting method is available
    return false unless ::Gitlab::CurrentSettings.respond_to?(:maintenance_mode)

    ::Gitlab::CurrentSettings.maintenance_mode
  end
end