feat: IndexedDB based caching for labels, inboxes and teams [CW-50] (#6710)

* feat: allow caching of labels in the account scope

* feat: send cache keys in account json response

* feat: kickstart web worker

* feat: setup basic architecture for workers

* feat: install idb

* feat: add datamanger

* fix: typos

* refactor: rename method

* feat: make init db a manual step

* refactor: separate accountIdFromRoute

* feat: cache enabled API client

* feat: enable caching for inboxes and labels

* feat: enable cache for team

* feat: manage exceptions for team

* feat: add team to data manager

* feat: add a generic listener

* refactor: send only cache keys

* refactor: separate validate method

* feat: add listeners

* feat: add event for revalidate

* feat: add cache keys endpoint

* refactor: fetch cache keys instead of full account data

* fix: key pattern

* feat: don't fetch account for cache_keys

* fix: cache key base class

* refactor: cache keys helper

* feat: add helper

* fix: cache-key update logic

* feat: delete indexeddb on logout

* feat: remove worker.js

* refactor: move data-manager

* refactor: name of file

* feat: add test for DataManager

* refactor: add fake idb to jest setup

* test: cache keys helper

* test: cache keys helper

* test: cache_keys in accounts controller

* refactor: remove cache_keys context

* feat: add policy for cache-keys

app/models/account.rb

@@ -26,6 +26,7 @@ class Account < ApplicationRecord
   include FlagShihTzu
   include Reportable
   include Featurable
+  include CacheKeys
 
   DEFAULT_QUERY_SETTING = {
     flag_query_mode: :bit_operator,

app/models/concerns/account_cache_revalidator.rb

@@ -0,0 +1,13 @@
+module AccountCacheRevalidator
+  extend ActiveSupport::Concern
+
+  included do
+    after_save :update_account_cache
+    after_destroy :update_account_cache
+    after_create :update_account_cache
+  end
+
+  def update_account_cache
+    account.update_cache_key(self.class.name.underscore)
+  end
+end

app/models/concerns/cache_keys.rb

@@ -0,0 +1,32 @@
+module CacheKeys
+  extend ActiveSupport::Concern
+
+  include CacheKeysHelper
+  include Events::Types
+
+  def cache_keys
+    {
+      label: fetch_value_for_key(id, Label.name.underscore),
+      inbox: fetch_value_for_key(id, Inbox.name.underscore),
+      team: fetch_value_for_key(id, Team.name.underscore)
+    }
+  end
+
+  def invalidate_cache_key_for(key)
+    prefixed_cache_key = get_prefixed_cache_key(id, key)
+    Redis::Alfred.del(prefixed_cache_key)
+    dispatch_cache_udpate_event
+  end
+
+  def update_cache_key(key)
+    prefixed_cache_key = get_prefixed_cache_key(id, key)
+    Redis::Alfred.set(prefixed_cache_key, Time.now.utc.to_i)
+    dispatch_cache_udpate_event
+  end
+
+  private
+
+  def dispatch_cache_udpate_event
+    Rails.configuration.dispatcher.dispatch(ACCOUNT_CACHE_INVALIDATED, Time.zone.now, cache_keys: cache_keys, account: self)
+  end
+end

app/models/inbox.rb

@@ -34,6 +34,7 @@ class Inbox < ApplicationRecord
   include Reportable
   include Avatarable
   include OutOfOffisable
+  include AccountCacheRevalidator
 
   # Not allowing characters:
   validates :name, presence: true

app/models/label.rb

@@ -18,6 +18,8 @@
 #
 class Label < ApplicationRecord
   include RegexHelper
+  include AccountCacheRevalidator
+
   belongs_to :account
 
   validates :title,

app/models/team.rb

@@ -16,6 +16,8 @@
 #  index_teams_on_name_and_account_id  (name,account_id) UNIQUE
 #
 class Team < ApplicationRecord
+  include AccountCacheRevalidator
+
   belongs_to :account
   has_many :team_members, dependent: :destroy_async
   has_many :members, through: :team_members, source: :user