Support gift code payment options in different currencies.

1 files changed, 5 insertions, 4 deletions

diff --git a/td/telegram/Premium.cpp b/td/telegram/Premium.cpp
index 66abfe91f..e9dd5ce4e 100644
--- a/td/telegram/Premium.cpp
+++ b/td/telegram/Premium.cpp
@@ -405,14 +405,15 @@ class GetPremiumGiftCodeOptionsQuery final : public Td::ResultHandler {
 
     auto results = result_ptr.move_as_ok();
     td::remove_if(results, [](const telegram_api::object_ptr<telegram_api::premiumGiftCodeOption> &payment_option) {
-      return payment_option->users_ <= 0 || payment_option->months_ <= 0 || payment_option->amount_ <= 0;
+      return payment_option->users_ <= 0 || payment_option->months_ <= 0 || payment_option->amount_ <= 0 ||
+             payment_option->currency_.empty();
     });
     auto get_monthly_price = [](const telegram_api::object_ptr<telegram_api::premiumGiftCodeOption> &payment_option) {
       return static_cast<double>(payment_option->amount_) / static_cast<double>(payment_option->months_);
     };
-    FlatHashMap<int32, double> max_prices;
+    FlatHashMap<int32, FlatHashMap<string, double>> max_prices;
     for (auto &result : results) {
-      auto &max_price = max_prices[result->users_];
+      auto &max_price = max_prices[result->users_][result->currency_];
       auto price = get_monthly_price(result);
       if (price > max_price) {
         max_price = price;
@@ -426,7 +427,7 @@ class GetPremiumGiftCodeOptionsQuery final : public Td::ResultHandler {
       } else if (result->store_quantity_ <= 0) {
         result->store_quantity_ = 1;
       }
-      double relative_price = get_monthly_price(result) / max_prices[result->users_];
+      double relative_price = get_monthly_price(result) / max_prices[result->users_][result->currency_];
       options.push_back(td_api::make_object<td_api::premiumGiftCodePaymentOption>(
           result->currency_, result->amount_, static_cast<int32>(100 * (1.0 - relative_price)), result->users_,
           result->months_, result->store_product_, result->store_quantity_,