End of day commit

app/serializers/supplier_employees_settings.rb

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+class SupplierEmployeesSettings
+  attr_reader :dictionary, :employee_ids, :supplier
+  def initialize(supplier)
+    @supplier = supplier
+    @dictionary = supplier.employee_settings_storage || {}
+    @employee_ids = supplier.employee_ids || []
+  end
+
+  def for_employee(employee_id)
+    employee_id = employee_id.id if employee_id.is_a?(Employee)
+    if employee_ids.include? employee_id
+      SupplierEmployeeSettings.new(self, employee_id, dictionary[employee_id])
+    else
+      SupplierEmployeeSettings::NullObject.new
+    end
+  end
+
+  def [](val)
+    val = val.to_s
+    if dictionary[val].is_a? SettingsPersistor
+      dictionary[val]
+    else
+      dictionary[val] = SettingsPersistor.new(self, dictionary[val])
+    end
+  end
+
+  def persist
+    supplier.employee_settings_storage = dictionary
+  end
+
+  def method_missing(m, *args)
+    dictionary.send(m, *args)
+  end
+
+  class SettingsPersistor < Hash
+    attr_reader :all_employees_settings
+    def initialize(all_employees_settings, options = {})
+      @all_employees_settings = all_employees_settings
+      self.replace options if options.is_a? Hash
+    end
+
+    def []=(*args)
+      super
+      all_employees_settings.persist
+    end
+  end
+
+  class SupplierEmployeeSettings
+    delegate :as_json, :to_json, to: :settings
+    DEFAULTS = {
+      'manager' => false
+    }
+    attr_reader :id, :settings, :all_employees_settings
+    class NullObject < ::NullObject
+    end
+
+    def initialize(all_employees_settings, employee_id, settings = {})
+      @all_employees_settings = all_employees_settings
+      @id = employee_id
+      @settings = DEFAULTS.merge(settings || {})
+    end
+
+    def manager?
+      settings['manager']
+    end
+
+    def is_manager!
+      all_employees_settings[id]['manager'] = true
+    end
+  end
+end