1 files changed, 59 insertions, 0 deletions
diff --git a/app/models/integrations/slack.rb b/app/models/integrations/slack.rb
new file mode 100644
index 00000000000..0381db3a67e
--- /dev/null
+++ b/app/models/integrations/slack.rb
@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+module Integrations
+  class Slack < BaseChatNotification
+    include SlackMattermostNotifier
+    extend ::Gitlab::Utils::Override
+
+    SUPPORTED_EVENTS_FOR_USAGE_LOG = %w[
+      push issue confidential_issue merge_request note confidential_note
+      tag_push wiki_page deployment
+    ].freeze
+
+    prop_accessor EVENT_CHANNEL['alert']
+
+    def title
+      'Slack notifications'
+    end
+
+    def description
+      'Send notifications about project events to Slack.'
+    end
+
+    def self.to_param
+      'slack'
+    end
+
+    def default_channel_placeholder
+      _('#general, #development')
+    end
+
+    def webhook_placeholder
+      'https://hooks.slack.com/services/…'
+    end
+
+    def supported_events
+      additional = []
+      additional << 'alert'
+
+      super + additional
+    end
+
+    def get_message(object_kind, data)
+      return Integrations::ChatMessage::AlertMessage.new(data) if object_kind == 'alert'
+
+      super
+    end
+
+    override :log_usage
+    def log_usage(event, user_id)
+      return unless user_id
+
+      return unless SUPPORTED_EVENTS_FOR_USAGE_LOG.include?(event)
+
+      key = "i_ecosystem_slack_service_#{event}_notification"
+
+      Gitlab::UsageDataCounters::HLLRedisCounter.track_event(key, values: user_id)
+    end
+  end
+end