1 files changed, 45 insertions, 0 deletions
diff --git a/app/services/work_items/delete_task_service.rb b/app/services/work_items/delete_task_service.rb
new file mode 100644
index 00000000000..3bb23576442
--- /dev/null
+++ b/app/services/work_items/delete_task_service.rb
@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+module WorkItems
+  class DeleteTaskService
+    def initialize(work_item:, current_user: nil, task_params: {}, lock_version:)
+      @work_item = work_item
+      @current_user = current_user
+      @task_params = task_params
+      @lock_version = lock_version
+      @task = task_params[:task]
+      @errors = []
+    end
+
+    def execute
+      transaction_result = ::WorkItem.transaction do
+        replacement_result = TaskListReferenceRemovalService.new(
+          work_item: @work_item,
+          task: @task,
+          line_number_start: @task_params[:line_number_start],
+          line_number_end: @task_params[:line_number_end],
+          lock_version: @lock_version,
+          current_user: @current_user
+        ).execute
+
+        break ::ServiceResponse.error(message: replacement_result.errors, http_status: 422) if replacement_result.error?
+
+        delete_result = ::WorkItems::DeleteService.new(
+          project: @task.project,
+          current_user: @current_user
+        ).execute(@task)
+
+        if delete_result.error?
+          @errors += delete_result.errors
+          raise ActiveRecord::Rollback
+        end
+
+        delete_result
+      end
+
+      return transaction_result if transaction_result
+
+      ::ServiceResponse.error(message: @errors, http_status: 422)
+    end
+  end
+end