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

   1 /*
   2  * RGB2R-C128-Kassenprogramm
   3  * © 2007-2009 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 #include "print.h"
  17
  18 static char *filter = NULL;
  19 static BYTE filter_len;
  20
  21 static BYTE current_credits_page = 0;
  22
  23 static void credit_print_screen() {
  24         BYTE i, pages;
  25         char buffer[10];
  26
  27         clrscr();
  28         cprintf("credit_manager (phil_fry, sECuRE, sur5r) v:" GV "\r\n\r\n");
  29         pages = (credits.num_items / CREDITS_PER_PAGE);
  30         if (current_credits_page > pages)
  31                 current_credits_page = pages;
  32         cprintf("Datei: CREDITS (Seite %d von %d)\r\n\r\n", current_credits_page, pages);
  33         for (i = (current_credits_page * CREDITS_PER_PAGE); i < credits.num_items && i < ((current_credits_page+1) * CREDITS_PER_PAGE); i++) {
  34                 if (filter == NULL || strncmp(credits.credits[i].nickname, filter, filter_len) == 0) {
  35                         if (format_euro(buffer, 10, credits.credits[i].credit) != buffer) {
  36                                 cprintf("Error: Could not format credit %d\r\n", credits.credits[i].credit);
  37                                 exit(1);
  38                         }
  39
  40                         cprintf("%d: %s: %s\r\n", i, credits.credits[i].nickname, buffer);
  41                 }
  42         }
  43         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");
  44 }
  45
  46 struct credits_t *find_credit(char *name){
  47         int i;
  48         for (i = 0; i < credits.num_items; i++)
  49                 if (strncmp(name, credits.credits[i].nickname, NICKNAME_MAX_LEN + 1) == 0)
  50                         return &credits.credits[i];
  51         return NULL;
  52 }
  53
  54 /*
  55  * Deposits credit for a user. Called in the credit manager (with input ==
  56  * NULL) or interactively when the user does not have enough money for his
  57  * intended purchase (with input == nickname).
  58  *
  59  */
  60 void deposit_credit(char *input) {
  61         char *time = get_time();
  62         struct credits_t *credit;
  63         unsigned int deposit;
  64
  65         if (input == NULL) {
  66                 cprintf("\r\nName:\r\n");
  67                 if ((input = get_input()) == NULL || *input == '\0')
  68                         return; // no name given
  69         }
  70
  71         if ((credit = find_credit(input)) == NULL)
  72                 return; // cannot find named credit
  73
  74         cprintf("\r\nEinzahlung in Cent:\r\n");
  75         if ((input = get_input()) == NULL || *input == '\0' || (deposit = atoi(input)) == 0)
  76                 return;
  77
  78         credit->credit += deposit;
  79
  80         toggle_videomode();
  81         cprintf("%d Cent eingezahlt fuer %s.\r\nRestguthaben: %d\r\n", deposit, credit->nickname);
  82         sprintf(print_buffer, "%c%s - %d Cent eingezahlt fuer %s. Restguthaben: %d Cent\r", 17, time, deposit, credit->nickname, credit->credit);
  83         cprintf("%s", print_buffer);
  84         toggle_videomode();
  85         print_the_buffer();
  86         cprintf("\r\nEinzahlung durchgefuehrt, druecke RETURN...\r\n");
  87         input = get_input();
  88         toggle_videomode();
  89         clrscr();
  90         toggle_videomode();
  91 }
  92
  93 static void new_credit() {
  94         char *input, *name;
  95         int credit;
  96
  97         if (credits.num_items == 75) {
  98                 cprintf("\rEs ist bereits die maximale Anzahl an Eintraegen erreicht, druecke RETURN...\r\n");
  99                 input = get_input();
 100                 return;
 101         }
 102
 103         clrscr();
 104         cprintf("\rNickname:\r\n");
 105         if ((input = get_input()) == NULL || *input == '\0')
 106                 return;
 107         name = strdup(input);
 108         cprintf("\r\nGuthaben in Cents:\r\n");
 109         if ((input = get_input()) == NULL || *input == '\0' || (credit = atoi(input)) == 0)
 110                 return;
 111         strcpy(credits.credits[credits.num_items].nickname, name);
 112         credits.credits[credits.num_items].credit = credit;
 113
 114         sprintf(print_buffer, "%cGuthaben mit %d Cent fuer %s angelegt\r", 17, credit, name);
 115         print_the_buffer();
 116
 117         credits.num_items++;
 118         free(name);
 119 }
 120
 121 static void _delete_credit(BYTE num) {
 122         memset(credits.credits[num].nickname, '\0', 11);
 123         credits.credits[num].credit = 0;
 124 }
 125
 126 static void delete_credit() {
 127         char *input;
 128         BYTE num, last;
 129
 130         cprintf("\r Welcher Eintrag soll geloescht werden?\r\n");
 131         if ((input = get_input()) == NULL || *input == '\0')
 132                 return;
 133         num = atoi(input);
 134         if (credits.num_items > 1) {
 135                 /* Swap last item with this one and delete the last one to avoid holes */
 136                 last = (credits.num_items - 1);
 137                 strcpy(credits.credits[num].nickname, credits.credits[last].nickname);
 138                 credits.credits[num].credit = credits.credits[last].credit;
 139                 _delete_credit(last);
 140         } else {
 141                 /* Just delete it */
 142                 _delete_credit(num);
 143         }
 144         credits.num_items--;
 145 }
 146
 147 void credit_manager(){
 148         char *c;
 149         while(1){
 150                 credit_print_screen();
 151                 c = get_input();
 152                 switch (*c) {
 153                         case 'n':
 154                                 new_credit(); break;
 155                         case 'd':
 156                                 delete_credit(); break;
 157                         case 's':
 158                                 save_credits(); break;
 159                         case 'f':
 160                                 if (current_credits_page < (credits.num_items / CREDITS_PER_PAGE))
 161                                                 current_credits_page++;
 162                                 break;
 163                         case 'b':
 164                                 if (current_credits_page > 0)
 165                                         current_credits_page--;
 166                                 break;
 167                         case 'p':
 168                                 deposit_credit(NULL); break;
 169                         case 'g':
 170                                 cprintf("Filter eingeben:\r\n");
 171                                 filter = get_input();
 172                                 if (filter == NULL || *filter == 32 || (filter_len = strlen(filter)) == 0)
 173                                         filter = NULL;
 174                                 break;
 175                         case 'z':
 176                                 save_credits();
 177                                 return;
 178                         default:
 179                                 cprintf("Unbekannter Befehl, druecke RETURN...\r\n");
 180                                 get_input();
 181                 }
 182         }
 183 }