Restructure omni services and add Chatwoot research snapshot

research/chatwoot/lib/tasks/db_enhancements.rake

@@ -0,0 +1,31 @@
+# We are hooking config loader to run automatically everytime migration is executed
+Rake::Task['db:migrate'].enhance do
+  if ActiveRecord::Base.connection.table_exists? 'installation_configs'
+    puts 'Loading Installation config'
+    ConfigLoader.new.process
+  end
+end
+
+# we are creating a custom database prepare task
+# the default rake db:prepare task isn't ideal for environments like heroku
+# In heroku the database is already created before the first run of db:prepare
+# In this case rake db:prepare tries to run db:migrate from all the way back from the beginning
+# Since the assumption is migrations are only run after schema load from a point x, this could lead to things breaking.
+# ref: https://github.com/rails/rails/blob/main/activerecord/lib/active_record/railties/databases.rake#L356
+db_namespace = namespace :db do
+  desc 'Runs setup if database does not exist, or runs migrations if it does'
+  task chatwoot_prepare: :load_config do
+    ActiveRecord::Base.configurations.configs_for(env_name: Rails.env).each do |db_config|
+      ActiveRecord::Base.establish_connection(db_config.configuration_hash)
+      unless ActiveRecord::Base.connection.table_exists? 'ar_internal_metadata'
+        db_namespace['load_config'].invoke if ActiveRecord.schema_format == :ruby
+        ActiveRecord::Tasks::DatabaseTasks.load_schema_current(:ruby, ENV.fetch('SCHEMA', nil))
+        db_namespace['seed'].invoke
+      end
+
+      db_namespace['migrate'].invoke
+    rescue ActiveRecord::NoDatabaseError
+      db_namespace['setup'].invoke
+    end
+  end
+end