spotify web setup is done

app/models/login.rb

@@ -1,3 +1,37 @@
 class Login < ApplicationRecord
   belongs_to :user
+
+  scope :alive, -> { where(dead_since: nil) }
+  scope :dead, -> { where.not(dead_since: nil) }
+
+  CLOSE_TO_EXPIRATION = 60
+
+  def self.find_or_create_for_response!(user, response, platform = "spotify")
+    login = user.logins.find_by_platform(platform)
+    login ||= Login.new(
+      user: user,
+      platform: platform,
+      last_refresh_at: Time.new
+    )
+
+    login.credentials = response
+    login.dead_since = nil
+    login.save!
+    login
+  end
+
+  def update_access_token!(spotify_response)
+    self.credentials = credentials.merge(spotify_response)
+    self.last_refresh_at = Time.new
+    save!
+    self
+  end
+
+  def about_to_expire?
+    Time.new > last_refresh_at + credentials["expires_in"].to_i - CLOSE_TO_EXPIRATION
+  end
+
+  def expired?
+    Time.new > last_refresh_at + credentials["expires_in"].to_i
+  end
 end

app/models/user.rb

@@ -4,6 +4,8 @@ class User < ApplicationRecord
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :validatable
 
+  has_many :logins
+
   def is_admin?
     id == 1
   end