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#include <iostream>
#include <string>
#include <vector>
#include<fstream>
#include<iomanip>
using namespace std;
void List_Restaurants(int&,vector<vector<string>>&,vector<string>&,int [],int);//list the restaurants with delivery fee
void Add_Items_to_Cart(vector<string>&, vector<string>&,int &,int);//input his name and the cuisine number that he wants to add to the cart
void Payment(vector<string>&,int&, int [][10],vector<string>dfee,bool&log,vector<string>& namelist); //input his name and show all of the items in his cart
void shopsystem(vector<vector<string>>,vector<string>&,int [],vector<string>& cartlist,vector<string>& namelist,int &counter,bool&log);
void Member_system(vector<string>&,int&, int [][10],vector<string>dfee,string &file,vector<string>&namelist,bool &log,bool &load);
void List_shops( vector<vector<string>> &shop,int shopgood[],vector<string>& shoplist );
void Log_In(int& counter , vector<string>& namelist , vector<string>& cartlist , string &file,bool &log);//according to file in member system, find record
void Sign_Up(int& counter,vector<string>& namelist,vector<string>& cartlist,string& file,bool &log);//according to file in member system, add record
void Log_Out(int& counter,vector<string>& namelist,vector<string>& cartlist,string &file,bool &log);
void Load_Member_Information(string & file,bool& load);
int main()
{
    string Do;int shopgood[10];shopgood[1]=2;shopgood[2]=2;shopgood[3]=3;string file;bool log=0;//log=1 log in log=0 not log in
    string do_what;vector<string> cartlist(100);int counter=0;vector<string>shoplist(10);//counter count how many names in namelist
    vector<vector<string>> restaurant(10,vector<string>(20));bool load=0;
    int shops=3;

    shoplist[1]="*** Walmart ***";shoplist[2]="*** Target ***";shoplist[3]="*** Costco ***";



    vector<string>namelist(100);vector<string> shopname(10);int good[10];//goods amount in each shop
    vector<string>dfee(100);vector<vector<string>> shop(10,vector<string>(20));
    dfee[1]="Delivery Fee                       NTD   29";dfee[11]="Delivery Fee                       NTD   49";
    dfee[2]="Delivery Fee                       NTD   49";dfee[12]="Delivery Fee                       NTD   39";
    dfee[3]="Delivery Fee                       NTD   39";dfee[13]="Delivery Fee                       NTD   29";

    shop[1][0]="1   Walmart                            NTD   49";
    shop[1][1]="1-1 Tissue                             NTD  124";shop[1][2]="1-2 Light Bulbs                        NTD   99";
    shop[2][0]="2   Target                             NTD   39";
    shop[2][1]="2-1 Shampoo                            NTD  239";shop[2][2]="2-2 Toothpaste                         NTD  129";
    shop[3][0]="3   Costco                             NTD   29";
    shop[3][1]="3-1 Milk                               NTD  259";shop[3][2]="3-2 Doritos                            NTD  165";shop[3][3]="3-3 Croissant                          NTD  199";

    good[1]=2;good[2]=3;good[3]=3;

    int goodvalue[10][10];
    goodvalue[1][0]=29;goodvalue[2][0]=49;goodvalue[3][0]=39;//delivery fee

    goodvalue[1][1]=75;goodvalue[1][2]=85;                   //good value
    goodvalue[2][1]=71;goodvalue[2][2]=78;goodvalue[2][3]=52;//good value
    goodvalue[3][1]=140;goodvalue[3][2]=130;goodvalue[3][3]=50;//good value


    shopname[1]="*** Wang shih jhen sin tang ***";
    shopname[2]="*** Taiwan di er jia yan su ji ***";
    shopname[3]="*** Fang kong nai ba ***";

    restaurant[1][0]="1   Wang shih jhen sin tang            NTD   29";restaurant[1][10]="1   Wang shih jhen sin tang            NTD    0";
    restaurant[2][0]="2   Taiwan di er jia yan su ji         NTD   49";restaurant[2][10]="2   Taiwan di er jia yan su ji         NTD    0";
    restaurant[3][0]="3   Fang kong nai ba                   NTD   39";restaurant[3][10]="3   Fang kong nai ba                   NTD    0";
    restaurant[1][1]="1-1 Bubble Tea                         NTD   75";
    restaurant[1][2]="1-2 Cheese-Topped Black Tea            NTD   85";
    restaurant[2][1]="2-1 Boneless Salted Crispy Chicken     NTD   71";
    restaurant[2][2]="2-2 Egg Tofu                           NTD   78";
    restaurant[2][3]="2-3 Green Beans                        NTD   52";
    restaurant[3][1]="3-1 Sakura Shrimp Fried Rice           NTD  140";
    restaurant[3][2]="3-2 Squid Fried Noodles                NTD  130";
    restaurant[3][3]="3-3 Grilled King Oyster Mushrooms      NTD   50";
    do
    {
        cout << "**********************************\n***   Food Delivery Homepage   ***\n**********************************" << endl;
        cout << "Enter 1 to Food Delivery System" << endl;
        cout << "Enter 2 to Shops System" << endl;
        cout << "Enter 3 to Pick-Up System" << endl;
        cout << "Enter 4 to Member System" << endl;
        cout << "Enter 5 to Payment" << endl;
        cout << "Enter exit() to quit\n>>>" ;
        getline(cin,Do);
        if(Do=="exit()")//old
        {
            return 0;
        }
        if(Do=="1"||Do=="2"||Do=="3"||Do=="4"||Do=="exit()"||Do=="5")//good input
        {
            cout<<endl;
        }
        else
        {
            cout << "Unknown command\n"<<endl;
            continue;
        }
        if(Do=="1")
        {
            do
            {
            cout << "**********************************" << endl;
            cout << "***    Food Delivery System    ***\n**********************************" << endl;
            cout << "Enter 1 to List Restaurants" << endl;
            cout << "Enter 2 to Add Items to Cart" << endl;
            cout << "Enter back to the Homepage\n>>>" ;
            getline(cin,do_what);
            if(do_what=="back")
            {
                cout<<endl;
                break;
            }
            if(log==0&&do_what=="2")
            {
                cout<<endl;
                cout << "Please log in first.\n"<<endl;
                continue;
            }

            if(do_what=="1"||do_what=="2")//good input
            {
                cout<<endl;
            }
            else
            {
                cout << "Unknown command\n"<<endl;
                continue;
            }

            if(do_what=="1")
            {
                List_Restaurants(shops,restaurant,shopname,good,0);
            }
            else if(do_what=="2")
            {
                Add_Items_to_Cart(cartlist,namelist,counter,0);
            }

            }while(do_what!="back");

        }
        else if(Do=="2")
        {
            shopsystem(shop,shoplist,shopgood,cartlist,namelist,counter,log);

        }
        else if(Do=="3")
        {

             do
            {
                cout << "**********************************" << endl;
                cout << "***       Pick-Up System       ***\n**********************************" << endl;
                cout << "Enter 1 to List Restaurants" << endl;
                cout << "Enter 2 to Add Items to Cart" << endl;
                cout << "Enter back to the Homepage\n>>>";
                getline(cin,do_what);
               if(do_what=="back")
                {
                    cout<<endl;
                    break;
                }
                if(log==0&&do_what=="2")
                {
                    cout<<endl;
                    cout << "Please log in first.\n"<<endl;
                    continue;
                }


                if(do_what=="1"||do_what=="2")//good input
                {
                    cout<<endl;
                }
                else
                {
                    cout << "Unknown command\n"<<endl;
                    continue;
                }

                if(do_what=="1")
                {
                    List_Restaurants(shops,restaurant,shopname,good,2);
                }
                else if(do_what=="2")
                {

                    Add_Items_to_Cart(cartlist,namelist,counter,2);
                }
            }while(true);
        }

        else if(Do=="5")
        {
            Payment(cartlist,counter,goodvalue,dfee,log, namelist);
        }
        else if(Do=="4")
        {
            Member_system(cartlist,counter,goodvalue,dfee,file,namelist,log,load);
        }


    }while(Do!="exit()");
}
void List_shops( vector<vector<string>> &shop,int shopgood[],vector<string>& shoplist )
{
    string listoption;
do
            {
                cout<<"*** List Shops ***"<<endl;
                cout<<"No. Shop                               Delivery Fee"<<endl;
                for(int i=1;i<=3;i++)
                {
                    cout << shop[i][0] << endl;
                }
                cout<<"Enter number to the shop or enter back to the Shops System"<<endl;
                cout<<">>>";
                getline(cin,listoption);

                if(listoption=="back")
                {
                    cout<<endl;
                    break;
                }
                if(listoption=="1"||listoption=="2"||listoption=="3")
                {
                    cout<<endl;
                    cout << shoplist[stoi(listoption)]<<endl;
                    cout<<"No. Groceries                          Price"<<endl;

                    for(int i=1;i<=shopgood[stoi(listoption)];i++)
                    {
                        cout<<shop[stoi(listoption)][i]<<endl;
                    }
                    cout<<endl;
                }
                else
                {
                    cout << "Unknown command\n"<<endl;
                    continue;
                }
            }while(listoption!="back");
}


void List_Restaurants(int &shops , vector<vector<string>> &restaurant , vector<string> &shopname ,int  good[],int control)//control=0 deliver control=2 pick up
{

    string option;
    do
    {
        cout << "*** List Restaurants ***" << endl;
        cout << "No. Restaurant                         Delivery Fee" << endl;
        if(control==0)
        {
            for(int i=1;i<=3;i++)
            {
                cout<< restaurant[i][0] <<endl;
            }
        }
        if(control==2)
        {
            for(int i=1;i<=3;i++)
            {
                cout<< restaurant[i][10] <<endl;
            }
        }
        if(control==0)
        {
            cout << "Enter number to the restaurant or enter back to the Food Delivery System\n>>>";
        }
        else if(control==2)
        {
            cout << "Enter number to the restaurant or enter back to the Pick-Up System\n>>>";
        }
        getline(cin,option);
        if((option[0]-'0'<=shops||option=="back")&&option[0]-'0'>0&&(option.length()==4||option.length()==1))//good input
        {
            cout<<endl;
        }
        else
        {
            cout << "Unknown command\n"<<endl ;
            continue;
        }
        if(option=="back")
        {
            return;
        }
        else //stoi(option) is the place of store
        {
            cout << shopname[stoi(option)]<<endl ;
            cout << "No. Cuisine                            Price"<<endl ;
            for(int i=1;i<=good[stoi(option)];i++)
            {
                cout<<restaurant[stoi(option)][i]<<endl;
            }
            cout <<endl;
            continue;

        }
    }while(true);

}

void Add_Items_to_Cart(vector<string>& cartlist,vector<string>& namelist,int &counter,int control)//control=0 delivery  ,control=1 shop control=2 pick up
{
     string name;string add_cart;int same=0;int first=0;
     cout <<"*** Add Items to Cart ***" << endl;
     if(control==0)//delivery
     {
             if(first==0)
             {
                 cartlist[0]+=",";
                 first=1;
             }

             do
             {
                 cout << "Enter item number to add it to cart: " ;
                 getline(cin,add_cart);
                 if(add_cart=="1-1"||add_cart=="1-2"||add_cart=="2-1"||add_cart=="2-2"||add_cart=="2-3"||add_cart=="3-1"||add_cart=="3-2"||add_cart=="3-3")//right
                 {

                      cartlist[0]+="0";cartlist[0]+=add_cart;cartlist[0]+=",";
                      cout <<"Added successfully!\n" << endl;
                      break;
                 }
                 else
                 {
                      cout <<"Wrong number, please enter again!" << endl;
                      continue;
                 }
             }while(true);
    }

     else if(control==1)//shop
     {
             if(first==0)
             {
                 cartlist[0]+=",";
                 first=1;
             }
             do
             {
                 cout << "Enter item number to add it to cart: " ;
                 getline(cin,add_cart);
                 if(add_cart=="1-1"||add_cart=="1-2"||add_cart=="2-1"||add_cart=="2-2"||add_cart=="3-1"||add_cart=="3-2"||add_cart=="3-3")//name,11-1,13-3...
                 {

                      cartlist[0]+="1";cartlist[0]+=add_cart;cartlist[0]+=",";
                      cout <<"Added successfully!\n" << endl;
                      break;
                 }
                 else
                 {
                      cout <<"Wrong number, please enter again!" << endl;
                      continue;
                 }
             }while(true);
     }//end of shop
          if(control==2)//pick up
     {

             if(first==0)
             {
                 cartlist[0]+=",";
                 first=1;
             }
             do
             {
                 cout << "Enter item number to add it to cart: " ;
                 getline(cin,add_cart);
                 if(add_cart=="1-1"||add_cart=="1-2"||add_cart=="2-1"||add_cart=="2-2"||add_cart=="2-3"||add_cart=="3-1"||add_cart=="3-2"||add_cart=="3-3")////name,21-1...
                 {

                      cartlist[0]+="2";cartlist[0]+=add_cart;cartlist[0]+=",";
                      cout <<"Added successfully!\n" << endl;
                      break;
                 }
                 else
                 {
                      cout <<"Wrong number, please enter again!" << endl;
                      continue;
                 }
             }while(true);
     }
}


void Payment(vector<string>& cartlist,int&counter,int goodvalue[][10],vector<string>dfee,bool& log,vector<string>& namelist )//control=0 delivery  ,control=1 shop control=2 pick up
{
    string name;int same=0;int deliveramount=0;vector<string> shopfee(10);int y=cartlist[0].length();
    int deliverplace[100]={0};int shopplace[100]={0};
    shopfee[1]="Delivery Fee                       NTD   49";
    shopfee[2]="Delivery Fee                       NTD   39";
    shopfee[3]="Delivery Fee                       NTD   29";

    int shopvalue[10][10];
    shopvalue[1][0]=49;
    shopvalue[2][0]=39;
    shopvalue[3][0]=29;

    shopvalue[1][1]=124;shopvalue[1][2]=99;
    shopvalue[2][1]=239;shopvalue[2][2]=129;
    shopvalue[3][1]=259;shopvalue[3][2]=165;shopvalue[3][3]=199;

    vector <vector<string>> item(10,vector<string>(10));vector <vector<string>> shopitem(10,vector<string>(10));
    item[1][1]="Bubble Tea                         NTD   75";shopitem[1][1]="Tissue                             NTD  124";
    item[1][2]="Cheese-Topped Black Tea            NTD   85";shopitem[1][2]="Light Bulbs                        NTD   99";
    item[2][1]="Boneless Salted Crispy Chicken     NTD   71";shopitem[2][1]="Shampoo                            NTD  239";
    item[2][2]="Egg Tofu                           NTD   78";shopitem[2][2]="Toothpaste                         NTD  129";
    item[2][3]="Green Beans                        NTD   52";shopitem[3][1]="Milk                               NTD  259";
    item[3][1]="Sakura Shrimp Fried Rice           NTD  140";shopitem[3][2]="Doritos                            NTD  165";
    item[3][2]="Squid Fried Noodles                NTD  130";shopitem[3][3]="Croissant                          NTD  199";
    item[3][3]="Grilled King Oyster Mushrooms      NTD   50";

    cout << "*** Payment ***" << endl;
    if(log==0)
    {
        cout << "Please log in first.\n"<<endl ;
        return;
    }
    int total=0;bool deliverusage[10]={0};bool shopusage[10]={0};
    for(int x=(namelist[0].length()+1);x<y;x+=5)//buy what     cart list= name,01-1,21-2,13-3... only count
    {
        if(deliverusage[static_cast<int>(cartlist[0][x+1])-'0']==0 && static_cast<int>(cartlist[0][x]-'0')==0)//deliver fee
        {
            deliverusage[static_cast<int>(cartlist[0][x+1])-'0']=1;
            total+=goodvalue[static_cast<int>(cartlist[0][x+1])-'0'][0];
            deliverplace[deliveramount]=static_cast<int>(cartlist[0][x+1])-'0';//
            deliveramount++;
        }
        if(cartlist[0][x]=='0')//pick up and deliver
        {
            //cout<<item[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0']<<endl;
            total+=goodvalue[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0'];
        }
        else if(cartlist[0][x]=='1')//shop
        {
            if(shopusage[static_cast<int>(cartlist[0][x+1])-'0']==0)//deliver fee shop version
            {
                shopusage[static_cast<int>(cartlist[0][x+1])-'0']=1;
                total+=shopvalue[static_cast<int>(cartlist[0][x+1])-'0'][0];
                deliverplace[deliveramount]=static_cast<int>(cartlist[0][x+1])-'0'+10;// 11,12,13
                deliveramount++;
            }
            //cout<<shopitem[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0']<<endl;
            total+=shopvalue[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0'];
        }
        else if(cartlist[0][x]=='2')//pick up and deliver
        {
            //cout<<item[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0']<<endl;
            total+=goodvalue[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0'];
        }
    }
    if(total==0)
    {
        cout << "You don't have any item in cart!\n" << endl;
        return;
    }
    cout<<endl;
    cout<<"This is "<<namelist[0]<<"'s order ***"<<endl;
    cout << "Item                               Price"<<endl;
    cout << "-------------------------------------------"<<endl ;
    for(int x=(namelist[0].length()+1);x<y;x+=5)//buy what     cart list= name,01-1,21-2,13-3... only output
    {
        if(cartlist[0][x]=='0')//pick up and deliver
        {
            cout<<item[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0']<<endl;
        }
        else if(cartlist[0][x]=='1')//shop
        {
            cout<<shopitem[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0']<<endl;
        }
        else if(cartlist[0][x]=='2')//pick up and deliver
        {
            cout<<item[static_cast<int>(cartlist[0][x+1])-'0'][static_cast<int>(cartlist[0][x+3])-'0']<<endl;
        }
    }
        for(int i=0;i<deliveramount;i++)//output delivery fee for food system and shop
        {
            cout<<dfee[deliverplace[i]]<<endl;
        }
        cout<<"-------------------------------------------"<<endl;
        cout<<"Total                              NTD  "<<total<<"\n"<<endl;
}

void shopsystem(vector<vector<string>> shop,vector<string>& shoplist,int shopgood[],vector<string>& cartlist,vector<string>& namelist,int &counter,bool&log)
{
    string option;string listoption;
    do
    {
        cout << "**********************************" << endl;
        cout << "***        Shops System        ***" << endl;
        cout << "**********************************" << endl;
        cout << "Enter 1 to List Shops"<<endl;
        cout << "Enter 2 to Add Items to Cart"<<endl;
        cout << "Enter back to the Homepage\n>>>";
        getline(cin,option);
        if(option=="back")
            {
                cout<<endl;
                break;
            }
            if(log==0&&option=="2")
            {
                cout<<endl;
                cout << "Please log in first.\n"<<endl;
                continue;
            }

        if((option[0]-'0'<=2||option=="back")&&option[0]-'0'>0&&(option.length()==4||option.length()==1))//good input
        {
            cout<<endl;
        }
        else
        {
            cout << "Unknown command\n"<<endl;
            continue;
        }
        if(option=="back")
        {
            return;
        }
        else if (option=="1")
        {
            List_shops(shop,shopgood,shoplist);
        }//end of else if
        else if (option=="2")
        {
            Add_Items_to_Cart(cartlist,namelist,counter,1);
        }
    }while(true);
}
void Member_system(vector<string>&cartlist,int&counter, int goodvalue[][10] ,vector<string>dfee,string &file,vector<string>&namelist,bool &log,bool &load)
{
    string option;ifstream memberfile(file,ios::in);
    if(!memberfile)// f1
    {
        do
        {
            cout << "**********************************\n***       Member system        ***"<<endl;
            cout << "**********************************"<<endl;
            cout << "Enter 1 to Load Member Information"<<endl;
            cout << "Enter back to the Homepage\n>>>";
            getline(cin,option);

            if(option=="1")
            {
                Load_Member_Information(file,load);
                Member_system(cartlist,counter,goodvalue,dfee,file,namelist,log,load);
                return;

            }
            if(option=="back")
            {
                cout <<endl;
                return;
            }
            else
            {
                cout << "Unknown command\n"<<endl;
                continue;
            }

        }while(1);
    }
    else // f2 f3
    {
        if(log==0)
        {
            do
            {
                cout << "**********************************\n***       Member system        ***"<<endl;
                cout << "**********************************"<<endl;
                cout << "Enter 2 to Log In"<<endl;
                cout << "Enter 3 to Sign Up"<<endl;
                cout << "Enter back to the Homepage\n>>>";
                getline(cin,option);
                if(option!="2"&&option!="3"&&option!="back")
                {
                    cout << "Unknown command\n"<<endl;
                }
            }while(option!="2"&&option!="3"&&option!="back");
            if(option=="2")
            {
                cout<<endl;
                Log_In(counter, namelist, cartlist,file,log);
                Member_system(cartlist,counter,goodvalue,dfee,file,namelist,log,load);
            }
            if(option=="3")
            {
                cout<<endl;
                Sign_Up( counter, namelist, cartlist,file,log);
                Member_system(cartlist,counter,goodvalue,dfee,file,namelist,log,load);
            }
            if(option=="back")
            {
                cout<<endl;
                return;
            }
        }
        else if(log==1)//f4
        {
            do
            {
                cout << "**********************************\n***       Member system        ***"<<endl;
                cout << "**********************************"<<endl;
                cout << "You are log in."<<endl;
                cout << "Enter 4 to log out"<<endl;
                cout << "Enter back to the Homepage\n>>>";
                getline(cin,option);
                if(option!="4"&&option!="back")
                {
                    cout << "Unknown command\n"<<endl;
                }
            }while(option!="4"&&option!="back");
            if(option=="4")
            {
                Log_Out(counter, namelist, cartlist,file,log);
                Member_system(cartlist,counter,goodvalue,dfee,file,namelist,log,load);
            }
            if(option=="back")
            {
                cout<<endl;
                return;
            }
        }
    }

}
void Load_Member_Information(string& file,bool &load)
{
    cout<<endl;
    cout << "*** Load Member Information ***"<<endl;
    cout << "Enter the member file name: ";
    getline(cin,file);
    ifstream tryfile(file,ios::in);
    if(tryfile)
    {
        cout << "The file "<<file<<" has been loaded...\n"<<endl;
        return;
    }
     else
    {
        cout << "File could not be opened.\n"<<endl;
        return;
    }
}
void Log_In(int& counter,vector<string>& namelist,vector<string>& cartlist,string &file,bool &log)
{
    string name;string password;ifstream infile(file,ios::in);string file_message;
    infile.seekg(0);
    cout << "*** Log In ***"<<endl;
    cout << "Enter Username: ";
    getline(cin,name);
    cout << "Enter Password: ";
    getline(cin,password);
        while(getline(infile,file_message))//file_message: name        password
        {
            if(file_message.substr(0,name.length())==name)//consumer
            {
                 if(file_message.substr(name.length()+5-1,password.length())==password)//password right
                 {
                     cout<<"Welcome, "<<name<<"!\n"<<endl;
                     namelist[0]=name;
                     cartlist[0]+=name;
                     counter=1;
                     log=1;
                     return;
                 }
            }
        }
        cout<<"Fail to find your data."<<endl;
        cout<<"Please sign up first.\n"<<endl;
        return;
}
void Log_Out(int& counter,vector<string>& namelist,vector<string>& cartlist,string &file,bool &log)
{
    log=0;
    cout << "You are logging out...\n"<<endl;
    namelist[0].clear();
    cartlist[0].clear();

}
void Sign_Up(int& counter,vector<string>& namelist,vector<string>& cartlist,string &file,bool &log)
{
    ofstream outfile(file,ios::app);string name;string password;
    cout << "*** Sign Up ***"<<endl;
    cout << "Enter Username: ";
    getline(cin,name);
    cout << "Enter Password: ";
    getline(cin,password);
    outfile<<endl;
    outfile<<name<<"	   "<<password;
    cout << "Welcome! You are now a member of Food Delivery System.\n"<<endl;
}

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