Added EventFilter class. Compeleted first version of dashbaord filtering

lib/event_filter.rb

@@ -0,0 +1,68 @@
+class EventFilter
+  attr_accessor :params
+
+  class << self
+    def default_filter
+      %w{ push issues merge_requests team}
+    end
+
+    def push
+      'push'
+    end
+
+    def merged
+      'merged'
+    end
+
+    def comments
+      'comments'
+    end
+
+    def team
+      'team'
+    end
+  end
+
+  def initialize params
+    @params = if params
+                params.dup
+              else
+                []#EventFilter.default_filter
+              end
+  end
+
+  def apply_filter events
+    return events unless params.present?
+
+    filter = params.dup
+
+    actions = []
+    actions << Event::Pushed if filter.include? 'push'
+    actions << Event::Merged if filter.include? 'merged'
+
+    if filter.include? 'team'
+      actions << Event::Joined
+      actions << Event::Left
+    end
+
+    actions << Event::Commented if filter.include? 'comments'
+
+    events = events.where(action: actions)
+  end
+
+  def options key
+    filter = params.dup
+
+    if filter.include? key
+      filter.delete key
+    else
+      filter << key
+    end
+
+    filter
+  end
+
+  def active? key
+    params.include? key
+  end
+end