class Google::Cloud::Storage::HmacKey

def self.from_gapi gapi, service, user_project: nil
  hmac_key = from_gapi_metadata gapi.metadata,
                                service,
                                user_project: user_project
  hmac_key.tap do |f|
    f.instance_variable_set :@secret, gapi.secret
  end
end

def self.from_gapi_metadata gapi, service, user_project: nil
  new.tap do |f|
    f.gapi = gapi
    f.service = service
    f.user_project = user_project
  end
end

def access_id
  @gapi.access_id
end

def active!
  put_gapi! "ACTIVE"
  self
end

def active?
  state == "ACTIVE"
end

def api_url
  @gapi.self_link
end

def created_at
  @gapi.time_created
end

def delete!
  ensure_service!
  @service.delete_hmac_key access_id,
                           project_id: project_id,
                           user_project: @user_project
  @gapi = @service.get_hmac_key access_id, project_id: project_id,
                                           user_project: @user_project
  self
end

def deleted?
  state == "DELETED"
end

def ensure_service!
  raise "Must have active connection" unless service
end

def etag
  @gapi.etag
end

def id
  @gapi.id
end

def inactive!
  put_gapi! "INACTIVE"
  self
end

def inactive?
  state == "INACTIVE"
end

def initialize
  @bucket = nil
  @service = nil
  @gapi = nil
  @user_project = nil
end

def project_id
  @gapi.project_id
end

def put_gapi! new_state
  ensure_service!
  put_gapi = @gapi.dup
  put_gapi.state = new_state
  @gapi = service.update_hmac_key access_id, put_gapi,
                                  project_id: project_id,
                                  user_project: @user_project
  self
end

def reload!
  ensure_service!
  @gapi = service.get_hmac_key access_id, project_id: project_id,
                                          user_project: user_project
  self
end

def service_account_email
  @gapi.service_account_email
end

def state
  @gapi.state
end

def updated_at
  @gapi.updated
end