vovan

LR_7.cpp

#include <stdio.h>
#include <string.h>
#include <conio.h>

struct drugstore {
    char name[20];
    char manufacturer[20];
    unsigned long cost;
    char type[20];
    char indications[50];
    char sell_type[20];
};

int append_drug(int n, drugstore *a) {
    printf("Enter name: ");
    scanf(" %[^\n]", &a[n].name);
    printf("Enter manufacturer: ");
    scanf(" %[^\n]", &a[n].manufacturer);
    printf("Enter cost: ");
    scanf("%lu", &a[n].cost);
    printf("Enter type: ");
    scanf(" %[^\n]", &a[n].type);
    printf("Enter indication of use: ");
    scanf(" %[^\n]", &a[n].indications);
    printf("Enter sell type: ");
    scanf(" %[^\n]", &a[n].sell_type);
    return n + 1;
}

int delete_drug(int n, drugstore *a, int del_id) {
    for (int i=del_id;i<n;++i)
	a[i] = a[i+1];
    return n-1;

}

int delete_stype_free(int n, drugstore *a) {
    for (int i=0;i<n;++i)
	if (strcmp(a[i].sell_type, "free") == 0) {
	    //printf("Drug with id='?d' has type 'free' and this record will be remove.\n", i);
	    n = delete_drug(n, a, i);
	    i--;
	}
    return n;
}

int inc_cost(int d_id, int added_value, drugstore *a) {
    a[d_id].cost += added_value;
    return a[d_id].cost;
}

int print_all_with_type(int n, char * type, drugstore * a, drugstore * res) {
    int cnt = 0;
    for (int i=0;i<n;++i)
	if (strcmp(a[i].type, type) == 0)
	    res[cnt++] = a[i];
    return cnt;

}

void print_drug(int n, drugstore *a) {
    if (n==0) {
	printf("Db has empty.\n");
	return;
    }
    printf("-------------------------------------------------------------------------\n");
    printf("|      name|manufacturer|       cost|       type|indications|  sell type|\n");
    printf("------------------------------------------------------------------------\n");
    for (int i=0;i<n;++i) {
	printf("|%10s| %11s| %10lu| %10s| %10s| %10s|\n",
	       a[i].name,
	       a[i].manufacturer,
	       a[i].cost,
	       a[i].type,
	       a[i].indications,
	       a[i].sell_type
	);
	printf("-------------------------------------------------------------------------\n");
    }
}

int menu() {
    clrscr();
    char *points[] = {
	"Append drug in db",
	"Delete drug from db",
	"Print all drugs in db",
	"Delete all nonprescription drugs",
	"Increase drug cost",
	"Print all drugs by entered type",
	"Exit"
    };
    int p_cnt = 7,temp;
    for (int i=0;i<p_cnt;++i)
	printf("%d: %s\n",i+1,points[i]);
    printf("Choose your destiny: ");
    scanf("%d", &temp);
    printf("Flawless victory (SIC!)\n");
    return temp;
}

int main() {
    struct drugstore arr[20], res[20];
    int n=0,id,add,rcnt;
    char type[20];
    while (1) {
	int choose = menu();
	clrscr();
	switch (choose) {
	    case 1:
		printf("BEFORE: \n");
		print_drug(n, arr);
		n = append_drug(n, arr);
		printf("AFTER: \n");
		print_drug(n, arr);
	    break;
	    case 2:
		printf("Enter id: ");
		scanf ("%d", &id);
		printf("BEFORE: \n");
		print_drug(n, arr);
		n = delete_drug(n, arr, id);
		printf("AFTER: \n");
		print_drug(n, arr);
	    break;
	    case 3:
		printf("CURRENT: \n");
		print_drug(n, arr);
	    break;
	    case 4:
		printf("BEFORE: \n");
		print_drug(n, arr);
		n = delete_stype_free(n, arr);
		printf("AFTER: \n");
		print_drug(n, arr);
	    break;
	    case 5:
		printf("Enter id: ");
		scanf ("%d", &id);
		printf("Enter increase value: ");
		scanf ("%d", &add);
		printf("BEFORE: \n");
		print_drug(n, arr);
		inc_cost(id, add, arr);
		printf("AFTER: \n");
		print_drug(n, arr);
	    break;
	    case 6:
		printf("Enter type: ");
		scanf ("%s", &type);
		printf("BEFORE: \n");
		print_drug(n, arr);
		rcnt = print_all_with_type(n, type, arr, res);
		printf("FINDING: \n");
		print_drug(rcnt, res);
	    break;
	    case 7:
		return 0;
	}
        getch();
    }

    //return 0;
}