Rankuman Akhir

//RAND()SUPERMARKET





#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<time.h>
#include<conio.h>
#include<windows.h>
void clear(){
system("cls");
}
void delay(int second){
int milsec = 1000 * second;
clock_t startTime = clock();
while(clock() < (startTime + milsec));
}
struct item{
char name[31];
int qty;
int price;
struct item *next,*prev;
}*head,*tail,*curr,*curr2;
struct item *news(char name[],int qty){
struct item *temp=(struct item*)malloc(sizeof(struct item));
temp->qty=qty;
temp->price=rand()%100000+1;
strcpy(temp->name,name);
return temp;
}
int countlist(){
curr=head;
int flag=0;
while(curr!=NULL){
flag++;
curr=curr->next;
}
return flag;
}
void drop(int x){
if(x<=countlist()){
if(head==tail){
head=tail=curr=NULL;
}
else if(x==1){
curr=head->next;
free(head);
head=curr;
head->prev=NULL;
}
else if(x==countlist()){
curr=tail->prev;
free(tail);
tail=curr;
tail->next=NULL;
}
else{
curr=head;
for(int i=0;i<x-1;i++){
curr=curr->next;
}
curr->next->prev=curr->prev;
curr->prev->next=curr->next;
free(curr);
}
}
}
bool deletion(char name[]){
curr=head;
for(int i=1;curr!=NULL;i++){
if(strcmpi(name,curr->name)==0){
drop(i);
return true;
}
curr=curr->next;
}
return false;
}
void push(char name[],int qty){
if(head==NULL){
head=news(name,qty);
head->next=NULL;
head->prev=NULL;
tail=head;
}
else {
curr=news(name,qty);
if(strcmp(name,head->name)<0){
head->prev=curr;
curr->next=head;
curr->prev=NULL;
head=curr;
}
else if(strcmp(name,tail->name)>0){
tail->next=curr;
curr->prev=tail;
curr->next=NULL;
tail=curr;
}
else{
curr2=head;
while(curr2->next!=tail&&strcmp(name,curr2->name)>0){
curr2=curr2->next;
}
curr->next=curr2->next;
curr->prev=curr2;
curr2->next->prev=curr;
curr2->next=curr;
}

}
}
void view(){
curr=head;
printf(" ______________________________________________________\n");
printf("| No.  | Item Name                      | qty | Price  |\n");
printf("+======================================================+\n");
for(int i=0;curr!=NULL;i++){
printf("| ");
printf("%d.",i+1);
if(i+1<10){
printf("  ");
}
else if(i+1<100){
printf(" ");
}
printf(" | ");
printf("%s",curr->name);
int len=strlen(curr->name);
for(int t=0;t<30-len;t++){
printf(" ");
}
printf(" | ");
printf("%d",curr->qty);
if(curr->qty>99){

}
else if(curr->qty>9){
printf(" ");
}
else printf("  ");
printf(" | ");
printf("%d",curr->price);
if(curr->price<10){
printf("    ");
}
else if(curr->price<100){
printf("   ");
}
else if(curr->price<1000){
printf("   ");
}
else if(curr->price<10000){
printf("  ");
}
else if(curr->price<100000){
printf(" ");
}
else printf("");
printf(" |\n");
curr=curr->next;
}
printf("+======================================================+\n");
}
bool qtyplus(char name[31],int qty){
curr=head;
while(curr!=NULL){
if(strcmpi(name,curr->name)==0){
curr->qty=curr->qty+qty;
printf("Item already existed...\nUpdating existing item's Qty instead...\n");
if(curr->qty>100){
curr->qty=100;
printf("Uhhh... Qty cant be over 100...\nSorry pal..\n");
}
return false;
}
curr=curr->next;
}
return true;
}

bool qtyupdate(char name[31],int qty){
curr=head;
while(curr!=NULL){
if(strcmpi(name,curr->name)==0){
curr->qty=qty;
return true;
}
curr=curr->next;
}
return false;
}
int keypress(){
int benar=0;
while(benar==0){
int hit = kbhit();
int ch;
if (hit){
ch = getch();
benar=1;
return ch;
}
}
}
int main(){
srand(time(NULL));
int menu=0;
int mulai=0;
printf("Welcome, shop will you ?\n");
printf("Press any key to continue...?\n");
keypress();
while(menu!=5){
clear();
printf("Welcome to random shop...\n");
printf("1. Add item\n");
printf("2. View items\n");
printf("3. Delete an item\n");
printf("4. Change item qty\n");
printf("5. Check Out\n");
char input[20]={0};
do{
printf(">>");
if(mulai==1)getchar();
mulai=1;
scanf("%[^\n]",&input);
}while(strcmp(input,"1")!=0&&strcmp(input,"2")!=0&&strcmp(input,"3")!=0&&strcmp(input,"4")!=0&&strcmp(input,"5")!=0);
menu=input[0]-48;
if(menu==1){
clear();
char inp[100]={0};
int qty=0;
do{
printf("If you input an existing item (Not case sensitive),\nit will add qty into the existing one...\n");
printf("(Word length : 5-30)>>");
getchar();
scanf("%[^\n]",&inp);
}while(strlen(inp)>30||strlen(inp)<5);
while(qty<1||qty>100){
printf("(QTY (MIN 1, MAX 100)))>>");
scanf("%d",&qty);
}
if(qtyplus(inp,qty)){
push(inp,qty);
printf("Add Success !\n");
}
else{


printf("Item succesfully updated...\n");
printf("Press any key to continue...\n");
keypress();
}
}
if(menu==2){
clear();
if(countlist()>0){

view();
}
else printf("no data....\n");
printf("Press any key to continue...\n");
keypress();
}
if(menu==3){
clear();
if(countlist()>0){
view();
char inp[100]={0};
int qty=0;
do{
printf("Which one do you want to delete(Not case sensitive)?\n");
printf("(Word length : 5-30)>>");
getchar();
scanf("%[^\n]",&inp);
}while(strlen(inp)>30||strlen(inp)<5);
if(deletion(inp)){
printf("Delete Succes...\n");
}
else {
printf("No such data...\n");

}
}
else printf("No data to delete...\n");
printf("Press any key to continue...");
keypress();
}
if(menu==4){
clear();
if(countlist()>0){
view();
char inp[100]={0};
int qty=0;
do{
printf("Which one do you want to update(Not case sensitive)?\n");
printf("(Word length : 5-30)>>");
getchar();
scanf("%[^\n]",&inp);
}while(strlen(inp)>30||strlen(inp)<5);
while(qty<1||qty>100){
printf("(QTY (MIN 1, MAX 100)))>>");
scanf("%d",&qty);
}
if(qtyupdate(inp,qty)){
printf("Update success !\n");
}
else{
printf("No such item exist...\n");
}
}
else printf("No data to update....");
printf("Press any key to continue...");
keypress();
}
}
}