(MATERIAL REVIEW) UAP + PROBLEM

//
//  main.cpp
//  UAP
//
//  Created by Alexander Kevin on 6/8/14.
//  Copyright (c) 2014 Alexander Kevin. All rights reserved.
//

//info seputar UAP
//- 100 menit , kerjakan 1 soal
//- Inheritance
//- Array of Objects
//- gk boleh ada global variabel
//- gk boleh input/ output within class
//
//NOTES:
//1)    There are 2 classes needed here
//2)    Inheritance
//3)    String class is allowed
//4)    Vector (???) / Array of objects
//5)    Another variety of the problem: such as update data or find and display
//
//|>    PRE-MENU
//  - Input USERNAME:
//      1) Combination of numbers and alphabets
//      2) 5 - 20 characters
//      3) One word only
//
//|>    MAIN MENU
//  - Display USERNAME
//  - Menu 1 : Make an Order
//  - Menu 2 : View Your Order
//  - Menu 3 : Delete Order
//  - Menu 4 : Pay Order
//
//|>    MENU 1 - Make an order
//  - Validate maximum number of existing order is 4 (both yogurt and special yogurt)
//  - Input FLAVOUR (Coffee, Green Tea, Mocha)
//  - Input TYPE (Balkan, Swiss, Greek)
//  - Input SIZE (Small, Medium, Large)
//  - Ask for TOPPING:
//      (+) If YES, then input TOPPING (Lychee, Dark Chocolate, Marshmallow)
//      (-) Continue program
//  - Generate ORDERID:
//      Format: ORD-ABC-XXYY
//      Where ABC -> First 3 character of USERNAME
//            X   -> Random alphabet (A-Z)
//            Y   -> Random number (0-9)
//  - Calculate PRICE by sum up the value according the order made:
//      1)  FLAVOUR
//          - Coffee            : 15000
//          - Green Tea         : 16000
//          - Mocha             : 17000
//      2)  TYPE
//          - Balkan            : 6000
//          - Swiss             : 7000
//          - Greek             : 8000
//      3)  SIZE
//          - Small             : 2000
//          - Medium            : 3000
//          - Large             : 4000
//      4)  TOPPING
//          - Lychee            : 4000
//          - Dark Chocolate    : 5000
//          - Marshmallow       : 6000
//  - Display the detail of the order
//
//|>    MENU 2 - View your order
//  - Validate whether there is order or not (display message)
//  - Display all the order have been made
//
//|>    MENU 3 - Delete Order
//  - Validate whether there is order or not (display message)
//  - Input ORDERID, validate that input should be matched the ORDERID formatting
//      Format: ORD-ABC-XXYY
//      Where ABC -> First 3 character of USERNAME
//            X   -> an alphabet (A-Z)
//            Y   -> a number (0-9)
//  - If the data is found, delete the data. Else, display error message
//
//|>    MENU 4 - Pay Order
//  - Validate whether there is order or not (display message)
//  - If there is data exist, calculate total payment of all orders
//  - Input user payment (Minimum is the amount of payment)
//  - Calculate the change, if there is any
//  - Display message
//  - Exit the program
//
//
#include <iostream>
#include <string>
#include <time.h>
#define abc cin.sync();cin.clear();//menganti pengektikan cin sync,clear dengan hanya mengetik abc

using namespace std;
//ga ada global variable +2 point
void menu(string,int);//function prototype
string regist();//untuk buat id
bool cekUser(string);//untuk loop cek id

class basic{//deklarasi class <- 5 point , implementasi 5 point, definition 10 point, skor dari class total 35 point;
protected://dibuat protected supaya bisa diakses anak class/inheritancenya
    string type;//<-data member 2 point
    string size;//pake string bair ga ribet
    string flavor;
    int price;
    string code;
public:
    basic(){//constructor
        type="";
        size="";
        flavor="";
        price=0;
        code="";
    }
    void setBasic(string a,string b,string c,string d){//<-Setter(passing by value) 2point. Ga boleh ada input(cin) dalam class (2point)
        flavor=a;
        type=b;
        size=c;
        price=0;
        code="ORD-";//code awal pasti pake depan ORD-
        code=code+d.substr(0,3)+'-';//ngambil 3 huruf pertama user
        srand(time(NULL));//buat ngerandom
        char x;//buat nyetaknya
        x=rand()%26+65;//26 dari total alphabet(a-z), 65 dari ascii A=65 harus huruf besar*
        code=code+x;//code ditambah huruf yg d random diatas
        x=rand()%26+65;
        code=code+x;
        x=rand()%10+48;//10 dari total angka(0-9), 48 dari ASCII 0=48;
        code=code+x;//code ditambah angka yg di random di atas
        x=rand()%10+48;
        code=code+x;
        if(flavor=="Coffee")//kalo input kopi harga sekian dst
            price+=15000;
        else if(flavor=="Green Tea")
            price+=16000;
        else
            price+=17000;
        if(flavor=="Balkan")
            price+=6000;
        else if(flavor=="Swiss")
            price+=7000;
        else
            price+=8000;
        if(flavor=="Small")
            price+=2000;
        else if(flavor=="Medium")
            price+=3000;
        else
            price+=4000;
    }
    string getType(){//getter(2point)
        return type;
    }
    string getSize(){
        return size;
    }
    string getFlavor(){
        return flavor;
    }
    int getPrice(){
        return price;
    }
    string getCode(){
        return code;
    }
    ~basic(){
    }
};

class detail:public basic{// inheritance dari class public 5point
private:
    string topping;
public:
    detail(){
        topping="No Topping";
    }
    void setTopping(string a){// di passing value stringnya (setter)
        topping=a;
        if(topping=="Lychee")//tentuin harga
            price+=4000;
        else if(topping=="Dark Chocolate")
            price+=5000;
        else
            price+=6000;
    }
    string getTopping(){//getter
        return topping;
    }
    ~detail(){//destructor
        cout<<code<<" DELETED"<<endl;
    }
};

void e(){//buat spasi(tampilan)
    int x=0;
    do{
        cout<<endl;
        x++;
    }while(x<27);
}

bool cekUser(string a){//booltipe data yg mereturn true / false, baiknya diggunain di loop
    if(a.length()<5||a.length()>20)//cek ukuran
        return false;
    else if(a.find(" ")<20)//cek ga boleh ada lebih dari 1 kata, cari " ". kalo ga ketemu dia mereturn 490xxxx
        return false;
    int w=0,z=0,x=0;//w untuk is alpha, z untuk isdigit, x untuk loop kalo di for sering dipake isitilah int i=0
    while(x<a.length()){
        if(isalpha(a[x]))//is alpha cek huruf atau enga kalo iya dia return true
            w=1;
        if(isdigit(a[x]))//is digit cek angka atau enga kalo iya dia return true
            z=1;
        x++;
    }
    if(w==1&&z==1)//baru bakal kirim true kalo smeua syarat bener
        return true;
    else
        return false;
}

string regist(){//untuk registrasi id
    e();//sekedar tampilan
    string a;
    cout<<"Username Requirement :"<<endl<<"1) Combination of numbers and alphabets"<<endl<<"2) 5 - 20 characters"<<endl<<"3) One word only"<<endl;
    while(!cekUser(a)){//loop cek username
        cout<<"Masukan Username Anda :";//output 2 point
        getline(cin,a);abc;//input 2 point, kalo string jangan lupa pake getline(cin,<nama_string>);
        cekUser(a);//di passing yg barusan "a" yg di input user
    }
    return a;
}

void menu(string id,int jumlah){
    system("cls");
    e();
    static detail ord[10];//<- array of object (5 point) dibikin static supaya constructor ga kepanggil terus2an. kelemaanya satu ga dinamis (cuma bisa 10/sesuai yg ditentuin di awal)
    //^ bisa diganti juga dengan nantinya pake object *array[]=new object[n];tar di Bagian apus data diubah jadi delete array[];(lebih ribet dan berhubung ga ada di penilaian pake static aja)
    int count;
    count=jumlah;//tampung nilai jumlah <- jadi repot gini soalnya ga boleh pake var Global
    cout<<"MAIN MENU"<<endl
        <<"Welcome, "<<id<<endl
        <<"1. Make an Order"<<endl
        <<"2. View Your Order"<<endl
        <<"3. Delete Order"<<endl
        <<"4. Pay Order"<<endl;
    int answer;
    cout<<"Masukan Pilihan : ";
    cin>>answer;abc;//abc penganti cin.sync(),cin.clear() yg tadi di define diatas
    switch(answer){
        case 1:
        {
            string a1,a2,a3,a4;
            system("cls");
            e();
            int flag=0;
            while(flag==0){//cek udah bener inputnya, kalo mau bisa di bikin kaya bool cekFlavor() cuma tar passing2 nya ribet sendiri
                cout<<"Input FLAVOUR (Coffee, Green Tea, Mocha) : ";
                getline(cin,a1);abc;
                if(a1=="Coffee"||a1=="Green Tea"||a1=="Mocha")
                    flag=1;
            }
            flag=0;//balikin ke 0 jangan lupa
            while(flag==0){//cek udah bener inputnya
                cout<<"Input TYPE (Balkan, Swiss, Greek) : ";
                getline(cin,a2);abc;
                if(a2=="Balkan"||a2=="Swiss"||a2=="Greek")
                    flag=1;
            }
            flag=0;
            while(flag==0){//cek udah bener inputnya
                cout<<"Input SIZE (Small, Medium, Large) : ";
                getline(cin,a3);abc;
                if(a3=="Small"||a3=="Medium"||a3=="Large")
                    flag=1;
            }
            cout<<"Add Topping[Y/N]?";//cek mau tambah topping ga
            getline(cin,a4);abc;
            if(a4=="Y"){
                flag=0;
                while(flag==0){
                    cout<<"Input TOPPING (Lychee, Dark Chocolate, Marshmallow) : ";
                    getline(cin,a4);abc;
                    if(a4=="Lychee"||a4=="Dark Chocolate"||a4=="Marshmallow")
                        flag=1;
                }
                ord[count].setTopping(a4);//implementasi array 3 point
            }
            ord[count].setBasic(a1,a2,a3,id);//implementasi array 3 point
            cout<<endl<<"Detail Order"<<endl<<"==========================="<<endl
            <<"Flavor : "<<ord[count].getFlavor()<<endl//ga di buat void view() soalnya di class jangan ada Input maupun output mengurangi nilai 2 point kalo ampe ada
            <<"Type : "<<ord[count].getType()<<endl//jadi mau ga mau mesti di luar class kaya gini
            <<"Size : "<<ord[count].getSize()<<endl
            <<"Topping : "<<ord[count].getTopping()<<endl
            <<"Price: "<<ord[count].getPrice()<<endl
            <<"Code : "<<ord[count].getCode()<<endl;
            cin.get();//supaya ga langsung ilang
            count++;//udah semua beres valid jangan lupa di ++ countnya
            menu(id,count);//lempar lagi id nya ama count yg udah ditambah barusan. sebenrnya bisa ga pasiing kalo boleh var global >,<
            break;
        }
        case 2:
            system("cls");
            e();
            if(count>0){//cek ada ga pesennya kalo ga ada langsung else
            cout<<"Detail Order"<<endl<<"==========================="<<endl;//ini juga sama mestinya bisa di singkat pake void view() cuma berhubung ga boleh ya sudah.
                for(int i=0;i<count;i++){
                    cout
                    <<"Flavor : "<<ord[i].getFlavor()<<endl//i itu index arraynya
                    <<"Type : "<<ord[i].getType()<<endl
                    <<"Size : "<<ord[i].getSize()<<endl
                    <<"Topping : "<<ord[i].getTopping()<<endl
                    <<"Price : "<<ord[i].getPrice()<<endl
                    <<"Code : "<<ord[i].getCode()<<endl<<endl;
                }
            }
            else{//kalo belom pesen
                cout<<"Belum Melakukan Pemesanan Apapun, Kembali ke menu";
            }
            cin.get();
            menu(id,count);
            break;
        case 3:
        {
            system("cls");
            e();
            string hapus;
            int flag=-1;
            if(count>0){//cek udah order belom
                cout<<"List Order"<<endl<<"==========================="<<endl;//tunjukin dulu list kodenya, ga mungkin user afal. kalo di contoh aplikasnya ini ga ada jadi terserah mau dibuat apa enga
                for(int i=0;i<count;i++){
                    cout<<"Code : "<<ord[i].getCode()<<endl<<endl;
                }
                while(flag==-1){//falg -1 kenapa? karena mungkin aja yg mau dia pus di index 0, tapi kan ga mungkin di -1
                    cout<<"Masukan Code yang ingin di delete : ";
                    getline(cin,hapus);abc;
                    for(int i=0;i<count;i++){//cek ada di index mana
                        if(ord[i].getCode()==hapus)
                            flag=i;//catet indeknya di flag
                    }
                    if(flag==-1)//kalo ternyata ga ada/ slaah input
                        cout<<"Code yang anda masukan salah"<<endl;
                }
                for(int i=flag;i<count-1;i++)//pindhain ke paling belakang kaya algo waktu delete-sort
                    ord[i]=ord[i+1];
                ord[count].~detail();//panggil destructornya buat ngapus isi object, kalo di atas mau pake yg object *array[]=new object[]; , disini ganti jadi delete array[];
                count--;//udah sukss apus di -- jangan lupa;
                cout<<"Sukses Mengahapus Order "<<hapus;//hapus intu kode smenetara yg diinput diatas
            }
            else//kalo belom pesen
                cout<<"Belum Melakukan Pemesanan Apapun, Kembali ke menu";
            cin.get();
            menu(id,count);
            break;
        }
        case 4:
            system("cls");
            e();
            if(count>0){
                int total=0,payment=0;//total buat itung biaya, payment buat tar dinput user
                for(int i=0;i<count;i++){//looping cek masing2 di jumlah
                    total+=ord[i].getPrice();
                }
                cout<<"total payment of all orders : Rp. "<<total<<",00"<<endl;//print totalnya
                while(payment<total){//looping kurang ga bayarnya
                    cout<<"Masukan Input user payment (Minimum is the amount of payment) : ";
                    cin>>payment;abc;
                }
                if(payment>total)//kalo ada kembalian
                    cout<<"Your Change is Rp. "<<(payment-total)<<",00"<<endl;//(payment-total) itu biar langsung ngeprint tanpa perlu nambah variable buat sekedar nampung doank
                cout<<"Thank You, See you next time!";//udah jangan di menu() lagi kan abis check out program mati
            }
            else{//kalo belom ada
                cout<<"Belum Melakukan Pemesanan Apapun, Kembali ke menu";
                cin.get();
                menu(id,count);//balik ke menu
                break;
            }
            cin.get();//satu2nya jalan keluar program adalah dengan pesen min 1 dan bayar
            break;
        default:
            menu(id,count);//kalo user slaah input menu
            break;
    }
}

int main(){
    int count=0;//buat ngasih tau masih 0;kalo di declare di menu atas setiap masuk menu bakla balik ke 0 >,< jadi harus dipisah decalrenya. again karena ga boleh var global !
    menu(regist(),count);//regis buat user id, count yg tadi dipoer diatas;
}