ZYM/BH-Bookstore-2023
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write finance

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This commit is contained in:
ZhuangYumin
2023-12-14 03:56:17 +00:00
parent f1646e531d
commit 2cdab5c9ac
5 changed files with 65 additions and 2 deletions
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22
backend/src/engine.cpp
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@ -269,6 +269,7 @@ std::vector<std::string> BookStoreEngineClass::ExecuteBuy(
return std::vector<std::string>({"Invalid"});
book_data_base.ModifyInfo(ISBN, "", "", "", "", -1,
tmp.quantity_remain - quantity);
log_data_base.AddSell(tmp.bid, quantity, tmp.price * quantity);
/*浮点数输出购买图书所需的总金额，小数点后有且仅有两位小数*/
std::vector<std::string> ans;
unsigned long long cost_tmp = tmp.price * quantity * 100 + 0.5;
@ -355,13 +356,32 @@ std::vector<std::string> BookStoreEngineClass::ExecuteImport(
book_data_base.HaveISBN(login_stack.top().second, tmp);
book_data_base.ModifyInfo(login_stack.top().second, "", "", "", "", -1,
tmp.quantity_remain + quantity);
log_data_base.AddImport(tmp.bid, quantity, total_cost);
return std::vector<std::string>();
}
std::vector<std::string> BookStoreEngineClass::ExecuteShowFinance(
const std::string &cmd,
std::stack<std::pair<std::string, std::string>> &login_stack) {
return std::vector<std::string>();
int count;
if (!CommandShowfinanceLexer(cmd, count))
return std::vector<std::string>({"Invalid"});
if (login_stack.empty() ||
user_data_base.GetPrevilege(login_stack.top().first) < 7)
return std::vector<std::string>({"Invalid"});
if (count > log_data_base.TotalFinanceOperationCount())
return std::vector<std::string>({"Invalid"});
if (count == 0) return std::vector<std::string>({""});
std::pair<double, double> ret = log_data_base.QueryFinance(count);
std::string ans;
unsigned long long income_tmp = ret.first * 100 + 0.5;
unsigned long long outcome_tmp = ret.second * 100 + 0.5;
ans =
"+ " + std::to_string(income_tmp / 100) + '.' +
std::to_string(income_tmp % 100 / 10) + std::to_string(income_tmp % 10) +
" - " + std::to_string(outcome_tmp / 100) + '.' +
std::to_string(outcome_tmp % 100 / 10) + std::to_string(outcome_tmp % 10);
return std::vector<std::string>({ans});
}
std::vector<std::string> BookStoreEngineClass::ExecuteLog(