Feature: Ability to switch between multiple accounts (#881)

* Feature: Ability to switch between multiple accounts

* Fix rubocop

* Fix assigned inboxes

* fix auth json

* Add account switcher in UI

* fix ordering on administrate

* Add switch accounts to sidebar

* add account id

* Fix schema.rb timestamp

* Revert "add account id"

This reverts commit 27570f50ef584cb9a5f69454f43f630b318c8807.

* Add a check for account

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

app/models/account_user.rb

@@ -3,6 +3,7 @@
 # Table name: account_users
 #
 #  id         :bigint           not null, primary key
+#  active_at  :datetime
 #  role       :integer          default("agent")
 #  created_at :datetime         not null
 #  updated_at :datetime         not null
@@ -23,6 +24,8 @@
 #
 
 class AccountUser < ApplicationRecord
+  include Events::Types
+
   belongs_to :account
   belongs_to :user
   belongs_to :inviter, class_name: 'User', optional: true
@@ -30,8 +33,8 @@ class AccountUser < ApplicationRecord
   enum role: { agent: 0, administrator: 1 }
   accepts_nested_attributes_for :account
 
-  after_create :create_notification_setting
-  after_destroy :destroy_notification_setting
+  after_create :notify_creation, :create_notification_setting
+  after_destroy :notify_deletion, :destroy_notification_setting
 
   validates :user_id, uniqueness: { scope: :account_id }
 
@@ -46,4 +49,14 @@ class AccountUser < ApplicationRecord
     setting = user.notification_settings.find_by(account_id: account.id)
     setting.destroy!
   end
+
+  private
+
+  def notify_creation
+    Rails.configuration.dispatcher.dispatch(AGENT_ADDED, Time.zone.now, account: account)
+  end
+
+  def notify_deletion
+    Rails.configuration.dispatcher.dispatch(AGENT_REMOVED, Time.zone.now, account: account)
+  end
 end

app/models/user.rb

@@ -64,7 +64,7 @@ class User < ApplicationRecord
 
   has_many :assigned_conversations, foreign_key: 'assignee_id', class_name: 'Conversation', dependent: :nullify
   has_many :inbox_members, dependent: :destroy
-  has_many :assigned_inboxes, through: :inbox_members, source: :inbox
+  has_many :inboxes, through: :inbox_members, source: :inbox
   has_many :messages
   has_many :invitees, through: :account_users, class_name: 'User', foreign_key: 'inviter_id', dependent: :nullify
 
@@ -74,9 +74,7 @@ class User < ApplicationRecord
 
   before_validation :set_password_and_uid, on: :create
 
-  after_create :notify_creation, :create_access_token
-
-  after_destroy :notify_deletion
+  after_create :create_access_token
 
   def send_devise_notification(notification, *args)
     devise_mailer.send(notification, self, *args).deliver_later
@@ -86,30 +84,36 @@ class User < ApplicationRecord
     self.uid = email
   end
 
-  def account_user
-    # FIXME : temporary hack to transition over to multiple accounts per user
-    # We should be fetching the current account user relationship here.
-    account_users&.first
+  def active_account_user
+    account_users.order(active_at: :desc)&.first
+  end
+
+  def current_account_user
+    account_users.find_by(account_id: Current.account.id) if Current.account
   end
 
   def account
-    account_user&.account
+    current_account_user&.account
+  end
+
+  def assigned_inboxes
+    inboxes.where(account_id: Current.account.id)
   end
 
   def administrator?
-    account_user&.administrator?
+    current_account_user&.administrator?
   end
 
   def agent?
-    account_user&.agent?
+    current_account_user&.agent?
   end
 
   def role
-    account_user&.role
+    current_account_user&.role
   end
 
   def inviter
-    account_user&.inviter
+    current_account_user&.inviter
   end
 
   def serializable_hash(options = nil)
@@ -118,14 +122,6 @@ class User < ApplicationRecord
     serialized_user
   end
 
-  def notify_creation
-    Rails.configuration.dispatcher.dispatch(AGENT_ADDED, Time.zone.now, account: account)
-  end
-
-  def notify_deletion
-    Rails.configuration.dispatcher.dispatch(AGENT_REMOVED, Time.zone.now, account: account)
-  end
-
   def push_event_data
     {
       id: id,