1 files changed, 40 insertions, 0 deletions
diff --git a/app/services/merge_requests/merge_orchestration_service.rb b/app/services/merge_requests/merge_orchestration_service.rb
new file mode 100644
index 00000000000..24341ef1145
--- /dev/null
+++ b/app/services/merge_requests/merge_orchestration_service.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module MergeRequests
+  class MergeOrchestrationService < ::BaseService
+    def execute(merge_request)
+      return unless can_merge?(merge_request)
+
+      merge_request.update(merge_error: nil)
+
+      if can_merge_automatically?(merge_request)
+        auto_merge_service.execute(merge_request)
+      else
+        merge_request.merge_async(current_user.id, params)
+      end
+    end
+
+    def can_merge?(merge_request)
+      can_merge_automatically?(merge_request) || can_merge_immediately?(merge_request)
+    end
+
+    def preferred_auto_merge_strategy(merge_request)
+      auto_merge_service.preferred_strategy(merge_request)
+    end
+
+    private
+
+    def can_merge_immediately?(merge_request)
+      merge_request.can_be_merged_by?(current_user) &&
+        merge_request.mergeable_state?
+    end
+
+    def can_merge_automatically?(merge_request)
+      auto_merge_service.available_strategies(merge_request).any?
+    end
+
+    def auto_merge_service
+      @auto_merge_service ||= AutoMergeService.new(project, current_user, params)
+    end
+  end
+end