1 files changed, 60 insertions, 0 deletions
diff --git a/app/models/project_services/chat_message/merge_message.rb b/app/models/project_services/chat_message/merge_message.rb
new file mode 100644
index 00000000000..ab5e8b24167
--- /dev/null
+++ b/app/models/project_services/chat_message/merge_message.rb
@@ -0,0 +1,60 @@
+module ChatMessage
+  class MergeMessage < BaseMessage
+    attr_reader :user_name
+    attr_reader :project_name
+    attr_reader :project_url
+    attr_reader :merge_request_id
+    attr_reader :source_branch
+    attr_reader :target_branch
+    attr_reader :state
+    attr_reader :title
+
+    def initialize(params)
+      @user_name = params[:user][:username]
+      @project_name = params[:project_name]
+      @project_url = params[:project_url]
+
+      obj_attr = params[:object_attributes]
+      obj_attr = HashWithIndifferentAccess.new(obj_attr)
+      @merge_request_id = obj_attr[:iid]
+      @source_branch = obj_attr[:source_branch]
+      @target_branch = obj_attr[:target_branch]
+      @state = obj_attr[:state]
+      @title = format_title(obj_attr[:title])
+    end
+
+    def pretext
+      format(message)
+    end
+
+    def attachments
+      []
+    end
+
+    private
+
+    def format_title(title)
+      '*' + title.lines.first.chomp + '*'
+    end
+
+    def message
+      merge_request_message
+    end
+
+    def project_link
+      "[#{project_name}](#{project_url})"
+    end
+
+    def merge_request_message
+      "#{user_name} #{state} #{merge_request_link} in #{project_link}: #{title}"
+    end
+
+    def merge_request_link
+      "[merge request !#{merge_request_id}](#{merge_request_url})"
+    end
+
+    def merge_request_url
+      "#{project_url}/merge_requests/#{merge_request_id}"
+    end
+  end
+end