Fix #177 Passive Cache plugins detection (no spec)

lib/common/collections/wp_items.rb

@@ -7,8 +7,68 @@ class WpItems < Array
   extend WpItems::Detectable
   include WpItems::Output
 
+  attr_accessor :wp_target
+
+  # @param [ WpTarget ] wp_target
+  def initialize(wp_target = nil)
+    self.wp_target = wp_target
+  end
+
+  # @param [String,] argv
+  #
+  # @return [ void ]
+  def add(*args)
+    index = 0
+
+    until args[index].nil?
+      arg = args[index]
+
+      if arg.is_a?(String)
+        if (next_arg = args[index + 1]).is_a?(Hash)
+          item = create_item(arg, next_arg)
+          index += 1
+        else
+          item = create_item(arg)
+        end
+      elsif arg.is_a?(Item)
+        item = arg
+      else
+        raise 'Invalid arguments'
+      end
+
+      self << item
+      index += 1
+    end
+  end
+
+  # @param [ String ] name
+  # @param [ Hash ] attrs
+  #
+  # @return [ WpItem ]
+  def create_item(name, attrs = {})
+    raise 'wp_target must be set' unless wp_target
+
+    item_class.new(
+      wp_target.uri,
+      attrs.merge(
+        name: name,
+        wp_content_dir: wp_target.wp_content_dir,
+        wp_plugins_dir: wp_target.wp_plugins_dir
+      ) { |key, oldval, newval| oldval }
+    )
+  end
+
+  # @param [ WpItems ] other
+  #
+  # @return [ self ]
   def +(other)
     other.each { |item| self << item }
     self
   end
+
+  protected
+  # @return [ Class ]
+  def item_class
+    Object.const_get(self.class.to_s.gsub(/.$/, ''))
+  end
 end