*/
#include "common.h"
#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+
+ int _GetMinBalance(int Account);
+ int _CanTransfer(int Source, int Destination, int Ammount);
+ int _Transfer(int Source, int Destination, int Ammount, const char *Reason);
+ int _GetSalesAcct(tItem *Item);
// === CODE ===
/**
*
* The core of the dispense system, I kinda like it :)
*/
-int DispenseItem(int User, tItem *Item)
+int DispenseItem(int ActualUser, int User, tItem *Item)
{
- int ret;
+ int ret, salesAcct;
tHandler *handler;
- char *username;
- char *reason;
+ char *username, *actualUsername;
handler = Item->Handler;
+ salesAcct = _GetSalesAcct(Item);
+
+ // Check if the user can afford it
+ if( Item->Price && !_CanTransfer(User, salesAcct, Item->Price) )
+ {
+ return 2; // 2: No balance
+ }
+
+ // HACK: Naming a slot "dead" disables it
+ if( strcmp(Item->Name, "dead") == 0 )
+ return 1;
+
// Check if the dispense is possible
if( handler->CanDispense ) {
ret = handler->CanDispense( User, Item->ID );
if(ret) return 1; // 1: Unable to dispense
}
-
- // Subtract the balance
- reason = mkstr("Dispense - %s:%i %s", handler->Name, Item->ID, Item->Name);
- if( !reason ) reason = Item->Name; // TODO: Should I instead return an error?
- ret = Transfer( User, GetUserID(COKEBANK_SALES_ACCT), Item->Price, reason);
- free(reason);
- if(ret) return 2; // 2: No balance
// Get username for debugging
- username = GetUserName(User);
+ username = Bank_GetAcctName(User);
// Actually do the dispense
if( handler->DoDispense ) {
ret = handler->DoDispense( User, Item->ID );
if(ret) {
- Log_Error("Dispense failed after deducting cost (%s dispensing %s - %ic)",
- username, Item->Name, Item->Price);
- Transfer( GetUserID(COKEBANK_SALES_ACCT), User, Item->Price, "rollback" );
+ Log_Error("Dispense failed (%s dispensing %s:%i '%s')",
+ username, Item->Handler->Name, Item->ID, Item->Name);
free( username );
- return -1; // 1: Unkown Error again
+ return -1; // 1: Unknown Error again
}
}
+ // Take away money
+ if( Item->Price )
+ {
+ char *reason;
+ reason = mkstr("Dispense - %s:%i %s", handler->Name, Item->ID, Item->Name);
+ _Transfer( User, salesAcct, Item->Price, reason );
+ free(reason);
+ }
+
+ actualUsername = Bank_GetAcctName(ActualUser);
+
// And log that it happened
- Log_Info("dispense '%s' (%s:%i) by %s [cost %i, balance %i cents]",
+ Log_Info("dispense '%s' (%s:%i) for %s by %s [cost %i, balance %i]",
Item->Name, handler->Name, Item->ID,
- username, Item->Price, GetBalance(User)
+ username, actualUsername, Item->Price, Bank_GetBalance(User)
);
free( username );
+ free( actualUsername );
return 0; // 0: EOK
}
+/**
+ * \brief Refund a dispense
+ */
+int DispenseRefund(int ActualUser, int DestUser, tItem *Item, int OverridePrice)
+{
+ int ret;
+ int src_acct, price;
+ char *username, *actualUsername;
+
+ src_acct = _GetSalesAcct(Item);
+
+ if( OverridePrice > 0 )
+ price = OverridePrice;
+ else
+ price = Item->Price;
+
+ ret = _Transfer( src_acct, DestUser, price, "Refund");
+ if(ret) return ret;
+
+ username = Bank_GetAcctName(DestUser);
+ actualUsername = Bank_GetAcctName(ActualUser);
+
+ Log_Info("refund '%s' (%s:%i) to %s by %s [cost %i, balance %i]",
+ Item->Name, Item->Handler->Name, Item->ID,
+ username, actualUsername, price, Bank_GetBalance(DestUser)
+ );
+
+ free(username);
+ free(actualUsername);
+
+ return 0;
+}
+
/**
* \brief Give money from one user to another
*/
-int DispenseGive(int SrcUser, int DestUser, int Ammount, const char *ReasonGiven)
+int DispenseGive(int ActualUser, int SrcUser, int DestUser, int Ammount, const char *ReasonGiven)
{
int ret;
+ char *actualUsername;
+ char *srcName, *dstName;
+
+ // HACK: Naming a slot "dead" disables it (catch for snack)
+ if( strcmp(ReasonGiven, "dead") == 0 )
+ return 1;
+
if( Ammount < 0 ) return 1; // Um... negative give? Not on my watch!
- ret = Transfer( SrcUser, DestUser, Ammount, ReasonGiven );
+ ret = _Transfer( SrcUser, DestUser, Ammount, ReasonGiven );
if(ret) return 2; // No Balance
- Log_Info("give %i to %s from %s (%s)",
- Ammount, GetUserName(DestUser), GetUserName(SrcUser), ReasonGiven
+
+ actualUsername = Bank_GetAcctName(ActualUser);
+ srcName = Bank_GetAcctName(SrcUser);
+ dstName = Bank_GetAcctName(DestUser);
+
+ Log_Info("give %i from %s to %s by %s [balances %i, %i] - %s",
+ Ammount, srcName, dstName, actualUsername,
+ Bank_GetBalance(SrcUser), Bank_GetBalance(DestUser),
+ ReasonGiven
);
+ free(srcName);
+ free(dstName);
+ free(actualUsername);
+
return 0;
}
+#if 0 // Dead Code
+/**
+ * \brief Move money from one user to another (Admin Only)
+ */
+int DispenseTransfer(int ActualUser, int SrcUser, int DestUser, int Ammount, const char *ReasonGiven)
+{
+ int ret;
+ char *actualUsername;
+ char *srcName, *dstName;
+
+ // Make sure the user is an admin
+ if( !(Bank_GetFlags(ActualUser) & USER_FLAG_ADMIN) )
+ return 1;
+
+ ret = _Transfer( SrcUser, DestUser, Ammount, ReasonGiven );
+ if(ret) return 2; // No Balance
+
+
+ actualUsername = Bank_GetAcctName(ActualUser);
+ srcName = Bank_GetAcctName(SrcUser);
+ dstName = Bank_GetAcctName(DestUser);
+
+ Log_Info("move %i from %s to %s by %s [balances %i, %i] - %s",
+ Ammount, srcName, dstName, actualUsername,
+ Bank_GetBalance(SrcUser), Bank_GetBalance(DestUser),
+ ReasonGiven
+ );
+
+ free(srcName);
+ free(dstName);
+ free(actualUsername);
+
+ return 0;
+}
+#endif
+
/**
* \brief Add money to an account
*/
-int DispenseAdd(int User, int ByUser, int Ammount, const char *ReasonGiven)
+int DispenseAdd(int ActualUser, int User, int Ammount, const char *ReasonGiven)
+{
+ int ret;
+ char *dstName, *byName;
+
+#if DISPENSE_ADD_BELOW_MIN
+ ret = _Transfer( Bank_GetAcctByName(COKEBANK_DEBT_ACCT,1), User, Ammount, ReasonGiven );
+#else
+ ret = Bank_Transfer( Bank_GetAcctByName(COKEBANK_DEBT_ACCT,1), User, Ammount, ReasonGiven );
+#endif
+ if(ret) return 2;
+
+ byName = Bank_GetAcctName(ActualUser);
+ dstName = Bank_GetAcctName(User);
+
+ Log_Info("add %i to %s by %s [balance %i] - %s",
+ Ammount, dstName, byName, Bank_GetBalance(User), ReasonGiven
+ );
+
+ free(byName);
+ free(dstName);
+
+ return 0;
+}
+
+int DispenseSet(int ActualUser, int User, int Balance, const char *ReasonGiven)
+{
+ int curBal = Bank_GetBalance(User);
+ char *byName, *dstName;
+
+ _Transfer( Bank_GetAcctByName(COKEBANK_DEBT_ACCT,1), User, Balance-curBal, ReasonGiven );
+
+ byName = Bank_GetAcctName(ActualUser);
+ dstName = Bank_GetAcctName(User);
+
+ Log_Info("set balance of %s to %i by %s [balance %i] - %s",
+ dstName, Balance, byName, Bank_GetBalance(User), ReasonGiven
+ );
+
+ free(byName);
+ free(dstName);
+
+ return 0;
+}
+
+/**
+ * \brief Donate money to the club
+ */
+int DispenseDonate(int ActualUser, int User, int Ammount, const char *ReasonGiven)
{
int ret;
+ char *srcName, *byName;
- ret = Transfer( GetUserID(COKEBANK_DEBT_ACCT), User, Ammount, ReasonGiven );
+ if( Ammount < 0 ) return 2;
+ ret = _Transfer( User, Bank_GetAcctByName(COKEBANK_DONATE_ACCT,1), Ammount, ReasonGiven );
if(ret) return 2;
- Log_Info("add %i to %s by %s (%s)",
- Ammount, GetUserName(User), GetUserName(ByUser), ReasonGiven
+ byName = Bank_GetAcctName(ActualUser);
+ srcName = Bank_GetAcctName(User);
+
+ Log_Info("donate %i from %s by %s [balance %i] - %s",
+ Ammount, srcName, byName, Bank_GetBalance(User), ReasonGiven
);
+ free(byName);
+ free(srcName);
+
return 0;
}
+
+int DispenseUpdateItem(int User, tItem *Item, const char *NewName, int NewPrice)
+{
+ char *username;
+
+ // Sanity checks
+ if( NewPrice < 0 ) return 2;
+ if( !Item ) return 2;
+ if( strlen(NewName) < 1 ) return 2;
+
+ // Update the item
+ free(Item->Name);
+ Item->Name = strdup(NewName);
+ Item->Price = NewPrice;
+
+ username = Bank_GetAcctName(User);
+
+ Log_Info("item %s:%i updated to '%s' %i by %s",
+ Item->Handler->Name, Item->ID,
+ NewName, NewPrice, username
+ );
+
+ free(username);
+
+ // Update item file
+ Items_UpdateFile();
+
+ return 0;
+}
+
+// --- Internal Functions ---
+int _GetMinBalance(int Account)
+{
+ int flags = Bank_GetFlags(Account);
+
+ // Evil little piece of HACK:
+ // root's balance cannot be changed by any of the above functions
+ // - Stops dispenses as root by returning insufficent balance.
+ {
+ char *username = Bank_GetAcctName(Account);
+ if( strcmp(username, "root") == 0 )
+ {
+ free(username);
+ return INT_MAX;
+ }
+ free(username);
+ }
+
+ // - Internal accounts have no lower bound
+ if( flags & USER_FLAG_INTERNAL ) return INT_MIN;
+
+ // Admin to -$50
+// if( flags & USER_FLAG_ADMIN ) return -5000;
+
+ // Coke to -$20
+// if( flags & USER_FLAG_COKE ) return -2000;
+
+ // Anyone else, non-negative
+ return 0;
+}
+
+/**
+ * \brief Check if a transfer is possible
+ * \return Boolean success
+ */
+int _CanTransfer(int Source, int Destination, int Ammount)
+{
+ if( Bank_GetFlags(Source) & USER_FLAG_DISABLED )
+ return 0;
+ if( Ammount > 0 )
+ {
+ if( Bank_GetBalance(Source) - Ammount < _GetMinBalance(Source) )
+ return 0;
+ }
+ else
+ {
+ if( Bank_GetBalance(Destination) + Ammount < _GetMinBalance(Destination) )
+ return 0;
+ }
+ return 1;
+}
+
+int _Transfer(int Source, int Destination, int Ammount, const char *Reason)
+{
+ if( !_CanTransfer(Source, Destination, Ammount) )
+ return 1;
+ return Bank_Transfer(Source, Destination, Ammount, Reason);
+}
+
+int _GetSalesAcct(tItem *Item)
+{
+ char string[sizeof(COKEBANK_SALES_PREFIX)+strlen(Item->Handler->Name)];
+ strcpy(string, COKEBANK_SALES_PREFIX);
+ strcat(string, Item->Handler->Name);
+ return Bank_GetAcctByName(string, 1);
+}
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