text: //
  // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  #pragma once
  
  #include "td/telegram/DialogId.h"
  #include "td/telegram/files/FileId.h"
  #include "td/telegram/FullMessageId.h"
  #include "td/telegram/MessageId.h"
  #include "td/telegram/Photo.h"
  #include "td/telegram/td_api.h"
  #include "td/telegram/telegram_api.h"
  
  #include "td/actor/PromiseFuture.h"
  
  #include "td/utils/common.h"
  #include "td/utils/Slice.h"
  #include "td/utils/Status.h"
  #include "td/utils/StringBuilder.h"
  
  namespace td {
  
  class Td;
  
  struct LabeledPricePart {
    string label;
    int64 amount = 0;
  
    LabeledPricePart() = default;
    LabeledPricePart(string &&label, int64 amount) : label(std::move(label)), amount(amount) {
    }
  };
  
  struct Invoice {
    string currency;
    vector<LabeledPricePart> price_parts;
    int64 max_tip_amount = 0;
    vector<int64> suggested_tip_amounts;
    bool is_test = false;
    bool need_name = false;
    bool need_phone_number = false;
    bool need_email_address = false;
    bool need_shipping_address = false;
    bool send_phone_number_to_provider = false;
    bool send_email_address_to_provider = false;
    bool is_flexible = false;
  
    Invoice() = default;
    Invoice(string &&currency, bool is_test, bool need_shipping_address)
        : currency(std::move(currency)), is_test(is_test), need_shipping_address(need_shipping_address) {
    }
  };
  
  struct InputInvoice {
    string title;
    string description;
    Photo photo;
    string start_parameter;
    Invoice invoice;
    string payload;
    string provider_token;
    string provider_data;
  
    int64 total_amount = 0;
    MessageId receipt_message_id;
  };
  
  struct Address {
    string country_code;
    string state;
    string city;
    string street_line1;
    string street_line2;
    string postal_code;
  
    Address() = default;
    Address(string &&country_code, string &&state, string &&city, string &&street_line1, string &&street_line2,
            string &&postal_code)
        : country_code(std::move(country_code))
        , state(std::move(state))
        , city(std::move(city))
        , street_line1(std::move(street_line1))
        , street_line2(std::move(street_line2))
        , postal_code(std::move(postal_code)) {
    }
  };
  
  struct OrderInfo {
    string name;
    string phone_number;
    string email_address;
    unique_ptr<Address> shipping_address;
  
    OrderInfo() = default;
    OrderInfo(string &&name, string &&phone_number, string &&email_address, unique_ptr<Address> &&shipping_address)
        : name(std::move(name))
        , phone_number(std::move(phone_number))
        , email_address(std::move(email_address))
        , shipping_address(std::move(shipping_address)) {
    }
  };
  
  struct ShippingOption {
    string id;
    string title;
    vector<LabeledPricePart> price_parts;
  };
  
  bool operator==(const LabeledPricePart &lhs, const LabeledPricePart &rhs);
  bool operator!=(const LabeledPricePart &lhs, const LabeledPricePart &rhs);
  
  StringBuilder &operator<<(StringBuilder &string_builder, const LabeledPricePart &labeled_price_part);
  
  bool operator==(const Invoice &lhs, const Invoice &rhs);
  bool operator!=(const Invoice &lhs, const Invoice &rhs);
  
  StringBuilder &operator<<(StringBuilder &string_builder, const Invoice &invoice);
  
  bool operator==(const InputInvoice &lhs, const InputInvoice &rhs);
  bool operator!=(const InputInvoice &lhs, const InputInvoice &rhs);
  
  InputInvoice get_input_invoice(tl_object_ptr<telegram_api::messageMediaInvoice> &&message_invoice, Td *td,
                                 DialogId owner_dialog_id);
  
  InputInvoice get_input_invoice(tl_object_ptr<telegram_api::botInlineMessageMediaInvoice> &&message_invoice, Td *td,
                                 DialogId owner_dialog_id);
  
  Result<InputInvoice> process_input_message_invoice(
      td_api::object_ptr<td_api::InputMessageContent> &&input_message_content, Td *td);
  
  tl_object_ptr<td_api::messageInvoice> get_message_invoice_object(const InputInvoice &input_invoice, Td *td);
  
  tl_object_ptr<telegram_api::inputMediaInvoice> get_input_media_invoice(const InputInvoice &input_invoice, Td *td);
  
  tl_object_ptr<telegram_api::inputBotInlineMessageMediaInvoice> get_input_bot_inline_message_media_invoice(
      const InputInvoice &input_invoice, tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup, Td *td);
  
  vector<FileId> get_input_invoice_file_ids(const InputInvoice &input_invoice);
  
  bool operator==(const Address &lhs, const Address &rhs);
  bool operator!=(const Address &lhs, const Address &rhs);
  
  StringBuilder &operator<<(StringBuilder &string_builder, const Address &address);
  
  unique_ptr<Address> get_address(tl_object_ptr<telegram_api::postAddress> &&address);
  
  Result<Address> get_address(td_api::object_ptr<td_api::address> &&address);
  
  tl_object_ptr<td_api::address> get_address_object(const unique_ptr<Address> &address);
  
  tl_object_ptr<td_api::address> get_address_object(const Address &address);
  
  string address_to_json(const Address &address);
  
  Result<Address> address_from_json(Slice json);
  
  Status check_country_code(string &country_code);
  
  bool operator==(const OrderInfo &lhs, const OrderInfo &rhs);
  bool operator!=(const OrderInfo &lhs, const OrderInfo &rhs);
  
  StringBuilder &operator<<(StringBuilder &string_builder, const OrderInfo &order_info);
  
  unique_ptr<OrderInfo> get_order_info(tl_object_ptr<telegram_api::paymentRequestedInfo> order_info);
  
  tl_object_ptr<td_api::orderInfo> get_order_info_object(const unique_ptr<OrderInfo> &order_info);
  
  bool operator==(const ShippingOption &lhs, const ShippingOption &rhs);
  bool operator!=(const ShippingOption &lhs, const ShippingOption &rhs);
  
  StringBuilder &operator<<(StringBuilder &string_builder, const ShippingOption &shipping_option);
  
  void answer_shipping_query(Td *td, int64 shipping_query_id,
                             vector<tl_object_ptr<td_api::shippingOption>> &&shipping_options,
                             const string &error_message, Promise<Unit> &&promise);
  
  void answer_pre_checkout_query(Td *td, int64 pre_checkout_query_id, const string &error_message,
                                 Promise<Unit> &&promise);
  
  void get_payment_form(Td *td, FullMessageId full_message_id, const td_api::object_ptr<td_api::paymentFormTheme> &theme,
                        Promise<tl_object_ptr<td_api::paymentForm>> &&promise);
  
  void validate_order_info(Td *td, FullMessageId full_message_id, tl_object_ptr<td_api::orderInfo> order_info,
                           bool allow_save, Promise<tl_object_ptr<td_api::validatedOrderInfo>> &&promise);
  
  void send_payment_form(Td *td, FullMessageId full_message_id, int64 payment_form_id, const string &order_info_id,
                         const string &shipping_option_id, const tl_object_ptr<td_api::InputCredentials> &credentials,
                         int64 tip_amount, Promise<tl_object_ptr<td_api::paymentResult>> &&promise);
  
  void get_payment_receipt(Td *td, FullMessageId full_message_id,
                           Promise<tl_object_ptr<td_api::paymentReceipt>> &&promise);
  
  void get_saved_order_info(Td *td, Promise<tl_object_ptr<td_api::orderInfo>> &&promise);
  
  void delete_saved_order_info(Td *td, Promise<Unit> &&promise);
  
  void delete_saved_credentials(Td *td, Promise<Unit> &&promise);
  
  void get_bank_card_info(Td *td, const string &bank_card_number,
                          Promise<td_api::object_ptr<td_api::bankCardInfo>> &&promise);
  
  }  // namespace td
  