/*
SOAL 
=========================================================================================================================
Input :
No Handphone [10-12], depan harus 08, kalo ketik exit dia keluar
Pilih provider [XL || Telkomsel || Indosat] case TIDAK sensitif
pilih pulsa [10000 || 25000 || 50000 || 100000]
Masukan CAPTCHA (*) case sensitive

Output:
Detail pemesanan
==================
No HP : no hp dengan sensor 3 no terkahir
Provider : pilihan provider//sudah di HURUF BESARKAN SEMUA
Pulsa : Rp. pilihan pulsa,00
No transaksi : [2 kata pertama merk Provider]+[3 digit no hp terakhir]+[2 kata pertama dari CAPTCHA di huruf kecilkan]

//format captca adalah random 2 huruf+no terakhir di no hp+2kata pertama provider HURUF BESAR

Contoh accepted input :
No HP : 087840094200
Provider : telKomsEL
Pulsa : 50000
Captcha (GF200XL) : GF200TE

Output :
No HP : 087840094***
Provider : TELKOMSEL
Pulsa : Rp. 50000,00
No Transaksi : TE200gf

PENJELASAN :
input ->captcha, GF dari random 2 huruf, 200 dari 3 no belakang hp, XL kode provider
output -> no hp di sensor 3 paling belakang
provider di huruf besarkan semuanya
pulsa ditambahkan Rp. ,00
No transaksi, TE dari telkomsel, 200 3 no belakang, gf randomnya dikecilin hurufnya

*hint, ASCII A-Z itu 65-92;


*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <stdlib.h>

struct data {
	char no[15];
	char provider[10];
	int pulsa;
	char captcha[10];
};

int main(){
	struct data cust;
	pid_t pFork;
	int pipes[2],i,j,flag;
	char cpt[10];
	if(pipe(pipes)<0){
		printf("Error Pipe");
		exit(1);
	}
	int r1,r2;
	pFork=fork();
	if(pFork==0){
		printf("\nChild Process\n=========================\n\n");
		do{
			flag=0;
			printf("No Handphone [10...12][08xxxxxx][exit to close]: ");
			scanf("%s",cust.no);getchar();
			if(strlen(cust.no)<10||strlen(cust.no)>12)
				flag=1;
			if(cust.no[0]!='0'||cust.no[1]!='8')
				flag=1;
			for(j=0;j<strlen(cust.no);j++){
				if(!isdigit(cust.no[j]))
					flag=1;
			}
			if(strcasecmp(cust.no,"exit")==0){
				printf("Program is Quiting\n");
				exit(1);
			}
		}while(flag==1);
		do{
			flag=0;
			printf("Pilih Provide [XL || Telkomsel || Indosat]: ");
			scanf("%s",cust.provider);getchar();
			if(strcasecmp(cust.provider,"xl")!=0&&strcasecmp(cust.provider,"telkomsel")!=0&&strcasecmp(cust.provider,"indosat"))
				flag=1;
		}while(flag==1);
		do{
			flag=0;
			printf("Pilih Pulsa [10000 || 25000 || 50000 || 100000]: ");
			scanf("%d",&cust.pulsa);getchar();fflush(stdin);
			if(cust.pulsa!=10000&&cust.pulsa!=25000&&cust.pulsa!=50000&&cust.pulsa!=100000)
				flag=1;
		}while(flag==1);
		srand(time(NULL));
		r1=rand()%26+65;
		r2=rand()%26+65;
		cpt[0]=r1;
		cpt[1]=r2;
		cpt[2]=cust.no[strlen(cust.no)-3];
		cpt[3]=cust.no[strlen(cust.no)-2];
		cpt[4]=cust.no[strlen(cust.no)-1];
		cpt[5]=toupper(cust.provider[0]);
		cpt[6]=toupper(cust.provider[1]);
		cpt[7]='\0';
		do{
			flag=0;
			printf("Masukan Captcha (%s)[case sensitive]: ",cpt);
			scanf("%s",cust.captcha);getchar();
			if(strcmp(cust.captcha,cpt)!=0)
				flag=1;
		}while(flag==1);
		close(pipes[0]);
		write(pipes[1],(struct data*)&cust,sizeof(cust));
	}
	else if(pFork>0){
		close(pipes[1]);
		read(pipes[0],(struct data*)&cust,sizeof(cust));
		printf("\nParent Process\n=========================\n\n");
		char noTemp[10];
		strncpy(noTemp,cust.no,strlen(cust.no)-3);
		printf("No HP : %s***\n",noTemp);
		printf("Provider : ");
		for(j=0;j<strlen(cust.provider);j++)
			printf("%c",toupper(cust.provider[j]));
		printf("\nPulsa : Rp. %d,00\n",cust.pulsa);
		printf("No Transaksi : %c%c%c%c%c%c%c\n",toupper(cust.provider[0]),toupper(cust.provider[1]),
			cust.no[strlen(cust.no)-3],cust.no[strlen(cust.no)-2],cust.no[strlen(cust.no)-1],
			tolower(cust.captcha[0]),tolower(cust.captcha[1]));
	}
}