random select recursive solution for bundle constraints

app/helpers/solver_helper.py

@@ -56,6 +56,22 @@ def build_constraints(solver_run: SolverRun, problem: LpProblem, items: list[Ite
     logging.error(error)
     raise ItemGenerationError("Bundle min and/or max larger than bundle amount provided", error.args[0])
 
+def get_random_bundles(total_form_items: int, total_bundles: int, bundles: list[Bundle], found_bundles = False) -> list[Bundle]:
+  selected_bundles = None
+  total_bundle_items = 0
+
+  while found_bundles == False:
+    selected_bundles = sample(bundles, total_bundles)
+    total_bundle_items = sum(bundle.count for bundle in selected_bundles)
+
+    if total_bundle_items <= total_form_items:
+      found_bundles = True
+
+  if found_bundles == True:
+    return selected_bundles
+  else:
+    return get_random_bundles(total_form_items, total_bundles - 1, bundles)
+
 def valid_bundle_combinations(total_form_items: int, total_bundles: int, min_bundles: int, bundles: list[Bundle], selected_bundle_combinations: list[list[Bundle]] = []) -> list[list[Bundle]]:
   if total_bundles < min_bundles:
     return selected_bundle_combinations