git.sur5r.net Git - c128-kasse/blob - src/credit_manager.c

   1 /*
   2  * RGB2R-C128-Kassenprogramm
   3  * (c) 2007-2008 phil_fry, sECuRE, sur5r
   4  * See LICENSE for license information
   5  *
   6  */
   7 #include <conio.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11
  12 #include "config.h"
  13 #include "general.h"
  14 #include "kasse.h"
  15 #include "c128time.h"
  16
  17 static char *filter = NULL;
  18 static BYTE filter_len;
  19
  20 static BYTE current_credits_page = 0;
  21
  22 static void credit_print_screen() {
  23         BYTE i, pages;
  24         char buffer[10];
  25
  26         clrscr();
  27         cprintf("itemz (phil_fry, sECuRE, sur5r)\r\n\r\n");
  28         pages = (credits.num_items / CREDITS_PER_PAGE);
  29         if (current_credits_page > pages)
  30                 current_credits_page = pages;
  31         cprintf("Datei: CREDITS (Seite %d von %d)\r\n\r\n", current_credits_page, pages);
  32         for (i = (current_credits_page * CREDITS_PER_PAGE); i < credits.num_items && i < ((current_credits_page+1) * CREDITS_PER_PAGE); i++) {
  33                 if (filter == NULL || strncmp(credits.credits[i].nickname, filter, filter_len) == 0) {
  34                         if (format_euro(buffer, 10, credits.credits[i].credit) != buffer) {
  35                                 cprintf("Error: Could not format credit %d\r\n", credits.credits[i].credit);
  36                                 exit(1);
  37                         }
  38
  39                         cprintf("%d: %s: %s\r\n", i, credits.credits[i].nickname, buffer);
  40                 }
  41         }
  42         cprintf("\r\nn) Neu d) Loeschen p) Einzahlen b) Seite hoch f) Seite runter\r\ng) Filtern e) Aendern s) Speichern z) Zurueck\r\n");
  43 }
  44
  45 struct credits_t *find_credit(char *name){
  46         int i;
  47         for (i = 0; i < credits.num_items; i++)
  48                 if (strncmp(name, credits.credits[i].nickname, NICKNAME_MAX_LEN + 1) == 0)
  49                         return &credits.credits[i];
  50         return NULL;
  51 }
  52
  53 /*
  54  * when depositing money with this and returning to the main menu, the program
  55  * will crash with a message like the following:
  56  *
  57  */
  58 static void deposit_credit() {
  59         char *time = get_time();
  60         char *input;
  61         struct credits_t *credit;
  62         unsigned int deposit;
  63
  64         cprintf("\r\nName:\r\n");
  65         if ((input = get_input()) == NULL || *input == '\0')
  66                 return; // no name given
  67
  68         if ((credit = find_credit(input)) == NULL)
  69                 return; // cannot find named credit
  70
  71         cprintf("\r\nEinzahlung in Cent:\r\n");
  72         if ((input = get_input()) == NULL || *input == '\0' || (deposit = atoi(input)) == 0)
  73                 return;
  74
  75         credit->credit += deposit;
  76
  77         toggle_videomode();
  78         cprintf("%d Cent eingezahlt fuer %s.\r\nRestguthaben: %d\r\n", deposit, credit->nickname);
  79         sprintf(print_buffer, "%c%s - %d Cent eingezahlt fuer %s. Restguthaben: %d Cent\r", 17, time, deposit, credit->nickname, credit->credit);
  80         cprintf("%s", print_buffer);
  81         toggle_videomode();
  82         print_the_buffer();
  83         cprintf("\r\nEinzahlung durchgefuehrt, druecke RETURN...\r\n");
  84         input = get_input();
  85         toggle_videomode();
  86         clrscr();
  87         toggle_videomode();
  88 }
  89
  90 static void new_credit() {
  91         char *input, *name;
  92         int credit;
  93
  94         if (credits.num_items == 75) {
  95                 cprintf("\rEs ist bereits die maximale Anzahl an Eintraegen erreicht, druecke RETURN...\r\n");
  96                 input = get_input();
  97                 return;
  98         }
  99
 100         clrscr();
 101         cprintf("\rNickname:\r\n");
 102         if ((input = get_input()) == NULL || *input == '\0')
 103                 return;
 104         name = strdup(input);
 105         cprintf("\r\nGuthaben in Cents:\r\n");
 106         if ((input = get_input()) == NULL || *input == '\0' || (credit = atoi(input)) == 0)
 107                 return;
 108         strcpy(credits.credits[credits.num_items].nickname, name);
 109         credits.credits[credits.num_items].credit = credit;
 110
 111         sprintf(print_buffer, "%cGuthaben mit %d Cent fuer %s angelegt\r", 17, credit, name);
 112         print_the_buffer();
 113
 114         credits.num_items++;
 115         free(name);
 116 }
 117
 118 static void _delete_credit(BYTE num) {
 119         memset(credits.credits[num].nickname, '\0', 11);
 120         credits.credits[num].credit = 0;
 121 }
 122
 123 static void delete_credit() {
 124         char *input;
 125         BYTE num, last;
 126
 127         cprintf("\r Welcher Eintrag soll geloescht werden?\r\n");
 128         if ((input = get_input()) == NULL || *input == '\0')
 129                 return;
 130         num = atoi(input);
 131         if (credits.num_items > 1) {
 132                 /* Swap last item with this one and delete the last one to avoid holes */
 133                 last = (credits.num_items - 1);
 134                 strcpy(credits.credits[num].nickname, credits.credits[last].nickname);
 135                 credits.credits[num].credit = credits.credits[last].credit;
 136                 _delete_credit(last);
 137         } else {
 138                 /* Just delete it */
 139                 _delete_credit(num);
 140         }
 141         credits.num_items--;
 142 }
 143
 144 void credit_manager(){
 145         char *c;
 146         while(1){
 147                 credit_print_screen();
 148                 c = get_input();
 149                 switch (*c) {
 150                         case 'n':
 151                                 new_credit(); break;
 152                         case 'd':
 153                                 delete_credit(); break;
 154                         case 's':
 155                                 save_credits(); break;
 156                         case 'f':
 157                                 if (current_credits_page < (credits.num_items / CREDITS_PER_PAGE))
 158                                                 current_credits_page++;
 159                                 break;
 160                         case 'b':
 161                                 if (current_credits_page > 0)
 162                                         current_credits_page--;
 163                                 break;
 164                         case 'p':
 165                                 deposit_credit(); break;
 166                         case 'g':
 167                                 cprintf("Filter eingeben:\r\n");
 168                                 filter = get_input();
 169                                 if (filter == NULL || *filter == 32 || (filter_len = strlen(filter)) == 0)
 170                                         filter = NULL;
 171                                 break;
 172                         case 'z':
 173                                 save_credits();
 174                                 return;
 175                         default:
 176                                 cprintf("Unbekannter Befehl, druecke RETURN...\r\n");
 177                                 get_input();
 178                 }
 179         }
 180 }