ZYM/BH-TicketSystem
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write buy_ticket

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happyZYM
2024-05-24 15:09:34 +00:00
parent fc5a66eed7
commit dd0487e834
5 changed files with 81 additions and 10 deletions
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47
src/transaction_system.cpp
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@ -219,11 +219,56 @@ std::string TicketSystemEngine::BuyTicket(const std::string &command) {
date, RetrieveReadableDate(date).first, RetrieveReadableDate(date).second, from, to, ticket_num,
accept_queue);
hash_t user_ID_hash = SplitMix64Hash(user_name);
hash_t train_ID_hash = SplitMix64Hash(train_id);
if (online_users.find(user_ID_hash) == online_users.end()) {
LOG->debug("user {} not online", user_name);
response_stream << "[" << command_id << "] -1";
return response_stream.str();
}
response_stream << "[" << command_id << "] BuyTicket";
bool success = false;
StopRegister::DirectTrainInfo info;
hash_t from_station_hash = SplitMix64Hash(from), to_station_hash = SplitMix64Hash(to);
stop_register.RequestSingleTrain(train_ID_hash, date, from_station_hash, to_station_hash, success, info);
if (!success) {
LOG->debug("no train available");
response_stream << "[" << command_id << "] -1";
return response_stream.str();
}
TicketPriceData ticket_price_data;
SeatsData seats_data;
int from_station_id = info.from_stop_id;
int to_station_id = info.to_stop_id;
int total_price = 0;
int available_seats = 0;
ticket_price_data_storage.Get(train_ID_hash, ticket_price_data);
seats_data_storage.Get({train_ID_hash, info.actual_start_date - info.saleDate_beg}, seats_data);
for (int j = from_station_id; j < to_station_id; j++) {
total_price += ticket_price_data.price[j];
}
available_seats = seats_data.seat[from_station_id];
for (int j = from_station_id + 1; j < to_station_id; j++) {
available_seats = std::min(available_seats, (int)seats_data.seat[j]);
}
if (ticket_num > available_seats) {
if (accept_queue == "false") {
LOG->debug("no enough seats");
response_stream << "[" << command_id << "] -1";
return response_stream.str();
}
transaction_manager.AddOrder(train_id, from, to, 0, info.leave_time_stamp, info.arrive_time_stamp, ticket_num,
total_price * (unsigned long long)ticket_num,
info.actual_start_date - info.saleDate_beg);
response_stream << "[" << command_id << "] queue";
return response_stream.str();
}
transaction_manager.AddOrder(train_id, from, to, 1, info.leave_time_stamp, info.arrive_time_stamp, ticket_num,
total_price * (unsigned long long)ticket_num,
info.actual_start_date - info.saleDate_beg);
for (int j = from_station_id; j < to_station_id; j++) {
seats_data.seat[j] -= ticket_num;
}
seats_data_storage.Put({train_ID_hash, info.actual_start_date - info.saleDate_beg}, seats_data);
response_stream << "[" << command_id << "] " << total_price * (unsigned long long)ticket_num;
return response_stream.str();
}