1 files changed, 88 insertions, 0 deletions
diff --git a/app/models/integrations/chat_message/base_message.rb b/app/models/integrations/chat_message/base_message.rb
new file mode 100644
index 00000000000..2f70384d3b9
--- /dev/null
+++ b/app/models/integrations/chat_message/base_message.rb
@@ -0,0 +1,88 @@
+# frozen_string_literal: true
+
+module Integrations
+  module ChatMessage
+    class BaseMessage
+      RELATIVE_LINK_REGEX = %r{!\[[^\]]*\]\((/uploads/[^\)]*)\)}.freeze
+
+      attr_reader :markdown
+      attr_reader :user_full_name
+      attr_reader :user_name
+      attr_reader :user_avatar
+      attr_reader :project_name
+      attr_reader :project_url
+
+      def initialize(params)
+        @markdown = params[:markdown] || false
+        @project_name = params[:project_name] || params.dig(:project, :path_with_namespace)
+        @project_url = params.dig(:project, :web_url) || params[:project_url]
+        @user_full_name = params.dig(:user, :name) || params[:user_full_name]
+        @user_name = params.dig(:user, :username) || params[:user_name]
+        @user_avatar = params.dig(:user, :avatar_url) || params[:user_avatar]
+      end
+
+      def user_combined_name
+        if user_full_name.present?
+          "#{user_full_name} (#{user_name})"
+        else
+          user_name
+        end
+      end
+
+      def summary
+        return message if markdown
+
+        format(message)
+      end
+
+      def pretext
+        summary
+      end
+
+      def fallback
+        format(message)
+      end
+
+      def attachments
+        raise NotImplementedError
+      end
+
+      def activity
+        raise NotImplementedError
+      end
+
+      private
+
+      def message
+        raise NotImplementedError
+      end
+
+      def format(string)
+        Slack::Messenger::Util::LinkFormatter.format(format_relative_links(string))
+      end
+
+      def format_relative_links(string)
+        string.gsub(RELATIVE_LINK_REGEX, "#{project_url}\\1")
+      end
+
+      def attachment_color
+        '#345'
+      end
+
+      def link(text, url)
+        "[#{text}](#{url})"
+      end
+
+      def pretty_duration(seconds)
+        parse_string =
+          if duration < 1.hour
+            '%M:%S'
+          else
+            '%H:%M:%S'
+          end
+
+        Time.at(seconds).utc.strftime(parse_string)
+      end
+    end
+  end
+end