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path: root/app/models/environment.rb
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class Environment < ActiveRecord::Base
  belongs_to :project, required: true, validate: true

  has_many :deployments

  before_validation :nullify_external_url
  before_save :set_environment_type

  validates :name,
            presence: true,
            uniqueness: { scope: :project_id },
            length: { within: 0..255 },
            format: { with: Gitlab::Regex.environment_name_regex,
                      message: Gitlab::Regex.environment_name_regex_message }

  validates :external_url,
            uniqueness: { scope: :project_id },
            length: { maximum: 255 },
            allow_nil: true,
            addressable_url: true

  delegate :closeable?, :close_action, to: :last_deployment, allow_nil: true

  scope :opened, -> { where(state: [:opened]) }
  scope :closed, -> { where(state: [:closed]) }

  state_machine :state, initial: :opened do
    event :close do
      transition opened: :closed
    end

    event :reopen do
      transition closed: :opened
    end

    state :opened
    state :closed
  end

  def last_deployment
    deployments.last
  end

  def nullify_external_url
    self.external_url = nil if self.external_url.blank?
  end

  def set_environment_type
    names = name.split('/')

    self.environment_type =
      if names.many?
        names.first
      else
        nil
      end
  end

  def includes_commit?(commit)
    return false unless last_deployment

    last_deployment.includes_commit?(commit)
  end

  def update_merge_request_metrics?
    self.name == "production"
  end

  def ref_path
    "refs/environments/#{Shellwords.shellescape(name)}"
  end
end