1 files changed, 35 insertions, 0 deletions
diff --git a/td/telegram/LabeledPricePart.cpp b/td/telegram/LabeledPricePart.cpp
index 375146272..ff2776e1e 100644
--- a/td/telegram/LabeledPricePart.cpp
+++ b/td/telegram/LabeledPricePart.cpp
@@ -6,6 +6,8 @@
 //
 #include "td/telegram/LabeledPricePart.h"
 
+#include "td/telegram/misc.h"
+
 #include "td/utils/algorithm.h"
 
 namespace td {
@@ -19,6 +21,39 @@ vector<telegram_api::object_ptr<telegram_api::labeledPrice>> LabeledPricePart::g
   return transform(parts, [](const LabeledPricePart &price) { return price.get_input_labeled_price(); });
 }
 
+Result<vector<LabeledPricePart>> LabeledPricePart::get_labeled_price_parts(
+    vector<td_api::object_ptr<td_api::labeledPricePart>> &&parts, int64 *result_total_amount) {
+  if (parts.empty()) {
+    return Status::Error(400, "There must be at least one price part");
+  }
+  vector<LabeledPricePart> result;
+  result.reserve(parts.size());
+  int64 total_amount = 0;
+  for (auto &part : parts) {
+    if (part == nullptr) {
+      return Status::Error(400, "Price part must be non-empty");
+    }
+    if (!clean_input_string(part->label_)) {
+      return Status::Error(400, "Price part label must be encoded in UTF-8");
+    }
+    if (!check_currency_amount(part->amount_)) {
+      return Status::Error(400, "Too big amount of the currency specified");
+    }
+    result.emplace_back(std::move(part->label_), part->amount_);
+    total_amount += part->amount_;
+  }
+  if (total_amount <= 0) {
+    return Status::Error(400, "Total price must be positive");
+  }
+  if (!check_currency_amount(total_amount)) {
+    return Status::Error(400, "Total price is too big");
+  }
+  if (result_total_amount != nullptr) {
+    *result_total_amount = total_amount;
+  }
+  return std::move(result);
+}
+
 StringBuilder &operator<<(StringBuilder &string_builder, const LabeledPricePart &labeled_price_part) {
   return string_builder << '[' << labeled_price_part.label << ": " << labeled_price_part.amount << ']';
 }