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Oper.c
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Oper.c
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#include "Glob.h"
void showOperMenu()
{
int code;
//printf ("1 - Credit money\n");
//printf ("2 - Debit money\n");
//printf ("3 - Transfer money\n");
//printf ("4 - Show client queries\n");
printf ("1 - Show client queries\n");
printf ("0 - Logout\n");
scanf("%d", &code);
switch (code)
{
/*case 1:
{
credit (NULL, NULL, 0);
break;
}
case 2:
{
debit (NULL, NULL, 0);
break;
}
case 3:
{
transfer(NULL, NULL, NULL, 0);
break;
}
case 4:
{
showOperQueries();
break;
}*/
case 1:
{
showOperQueries();
break;
}
case 0:
{
logout();
break;
}
default:
{
printf ("Invalid command\n");
break;
}
}
}
int credit(char *passportNo, char *cardNo, double money)
{
char *sql;
int ownerID;
int idx;
double balance;
double debt;
char *type;
int trans;
//char overdraftEnd[20];
sql = "SELECT ID from BANK_CLIENTS WHERE Passport_No = ?;";
rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
sqlite3_bind_text(res, 1, passportNo, -1, SQLITE_TRANSIENT);
sqlite3_step(res);
ownerID = sqlite3_column_int(res, 0);
//sql = "SELECT Balance, Debt, Type, TotalTransactions, OverdraftEnd FROM BANK_ACCOUNTS WHERE Card_No = @card AND Owner_ID = @ownerID";
sql = "SELECT Balance, Debt, Type, TotalTransactions FROM BANK_ACCOUNTS WHERE Card_No = @card AND Owner_ID = @ownerID";
rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
idx = sqlite3_bind_parameter_index(res, "@card");
sqlite3_bind_text(res, idx, cardNo, -1, SQLITE_TRANSIENT);
idx = sqlite3_bind_parameter_index(res, "@ownerID");
sqlite3_bind_int(res, idx, ownerID);
if (sqlite3_step(res) != SQLITE_ROW)
{
printf ("Error: inconsistent passport and card number\n");
return 0;
}
balance = sqlite3_column_double(res, 0);
debt = sqlite3_column_double(res, 1);
type = (char*)sqlite3_column_text(res, 2);
trans = sqlite3_column_int(res, 3);
//strcpy(overdraftEnd, (char*)sqlite3_column_text(res, 4));
if (debt > 0 && money < 0)
{
printf ("You have unpaid debts so you can't debit money\n");
return 0;
}
if (strcmp(type, "Overdraft") != 0)
{
if (money < 0 && balance + money < 0)
{
printf("Debit denied: you don't have enough money\n");
return 0;
}
if (debt > 0)
{
if (money > debt)
{
debt = 0;
balance += money - debt;
}
else
debt -= money;
}
else
balance += money;
}
else
{
sql = "SELECT OverdraftTermDays, OverdraftMax From BANK_CONFIG Where Account_Type = ?";
rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
sqlite3_bind_text(res, 1, "Overdraft", -1, SQLITE_TRANSIENT);
sqlite3_step(res);
int days = sqlite3_column_int(res, 0);
double overdraftMax = sqlite3_column_double(res, 1);
if (money < 0 && balance + money < overdraftMax)
{
printf("Debit denied: you don't have enough money\n");
return 0;
}
if (debt > 0)
{
if (money > debt)
{
debt = 0;
balance += money - debt;
}
else
debt -= money;
}
else
balance += money;
/*if (balance < 0 && overdraftEnd == NULL)
{
struct tm *currTime;
time_t rawtime;
time (&rawtime);
currTime = localtime(&rawtime);
//sprintf(overdraftEnd, "%d-%d-%d", currTime->tm_year + 1900, currTime->tm_mon + 1, currTime->tm_mday + days);
}*/
}
//sql = "UPDATE BANK_ACCOUNTS SET Balance = @bal, Debt = @debt, TotalTransactions = @trans, OverdraftEnd = @end WHERE Card_No = @card AND Owner_ID = @owner;";
sql = "UPDATE BANK_ACCOUNTS SET Balance = @bal, Debt = @debt, TotalTransactions = @trans WHERE Card_No = @card AND Owner_ID = @owner;";
rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
idx = sqlite3_bind_parameter_index(res, "@card");
sqlite3_bind_text(res, idx, cardNo, -1, SQLITE_TRANSIENT);
idx = sqlite3_bind_parameter_index(res, "@bal");
sqlite3_bind_double(res, idx, balance);
idx = sqlite3_bind_parameter_index(res, "@debt");
sqlite3_bind_double(res, idx, debt);
idx = sqlite3_bind_parameter_index(res, "@trans");
sqlite3_bind_int(res, idx, trans + 1);
//idx = sqlite3_bind_parameter_index(res, "@end");
//sqlite3_bind_text(res, idx, overdraftEnd, -1, SQLITE_TRANSIENT);
idx = sqlite3_bind_parameter_index(res, "@owner");
sqlite3_bind_int(res, idx, ownerID);
sqlite3_step(res);
return 1;
}
int debit(char *passportNo, char *cardNo, double money)
{
return credit (passportNo, cardNo, -money);
}
int transfer(char *passportNo, char *cardNoFrom, char *cardNoTo, double money)
{
char *sql;
int ownerID;
int idx;
double commission;
sql = "SELECT ID from BANK_CLIENTS WHERE Passport_No = ?;";
rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
sqlite3_bind_text(res, 1, passportNo, -1, SQLITE_TRANSIENT);
sqlite3_step(res);
ownerID = sqlite3_column_int(res, 0);
sql = "SELECT Commission FROM BANK_ACCOUNTS WHERE Card_No = @card AND Owner_ID = @ownerID";
rc = sqlite3_prepare_v2(db, sql, -1, &res, 0);
idx = sqlite3_bind_parameter_index(res, "@card");
sqlite3_bind_text(res, idx, cardNoTo, -1, SQLITE_TRANSIENT);
idx = sqlite3_bind_parameter_index(res, "@ownerID");
sqlite3_bind_int(res, idx, ownerID);
if (sqlite3_step(res) != SQLITE_ROW)
{
printf ("Error: inconsistent passport and card number\n");
return 0;
}
commission = sqlite3_column_double(res, 0);
if (debit (passportNo, cardNoFrom, money * (1 + commission)))
{
if (credit(passportNo, cardNoTo, money))
return 1;
else
{
credit(passportNo, cardNoFrom, money * (1 + commission));
return 0;
}
}
return 0;
}