/* Contestant Database - with member functions */
#include <iostream>
#include <string>
#include <fstream>
#include <cstdlib>          //needed to use system() function
using namespace std;

//constant definitions
const int NUMCONS = 50;

//structure definitions
struct Conname {
    string last;
    string first;
};

struct Jobinfo {
    string title;
    double salary;
};

struct Persinfo {
    char gender;
    string haircolor;
    int age;
    Jobinfo job;
};

class Con {
    // member variables
    Conname name;
    Persinfo personal;

  public:
    // member functions
    bool readdata(ifstream &cfile);
    void prettyprint(ofstream &dbfile);
    bool compareage(int agewanted);
};

// Function Prototypes
void readdata(Con [], int &);
void prettyprint(Con [], int);
void printmenu(void);
int selecttrait(Con [], int);
void findage(Con [], int);
void findgender(Con [], int);
void findhair(Con [], int);
void findtitle(Con [], int);
void findsalary(Con [], int);
void pause(void);

int main()
{
    Con contestant[NUMCONS];
    int num;

    /* first part */
    /* fill and print database */
    readdata(contestant,num);
    prettyprint(contestant,num);

    /* second part */
    /* call functions to read and process requests */
    do {
        printmenu();
    } while (selecttrait(contestant,num) != 0);

    //system("pause");                            //un-comment when using DevC++
    return 0;
}

/* Function readdata() */
void readdata(Con contestant[], int &count)
{
    // open input file
    ifstream cfile("c:\\bc\\CISC1110\\pgms\\chapter10\\myinput.txt"); //comment-out for debugging
    //ifstream cfile("con");                      //un-comment for debugging

    count = 0;                                  //initialize count
    while (contestant[count].readdata(cfile))
        count++;

    cfile.close();
    return;
}

/* Function prettyprint: */
void prettyprint(Con contestant[], int num)
{
    // open output file
    //ofstream dbfile("c:\\bc\\CISC1110\\pgms\\chapter10\\myoutput.txt"); //comment-out for debugging
    ofstream dbfile("con");                     //un-comment for debugging

    dbfile << "\t\tContestants in the Database\n\n";
    dbfile << "Name\t\tGender\tHair\tAge\tTitle\tSalary\n\n";

    for (int count = 0; count < num; count++)
        contestant[count].prettyprint(dbfile);

    dbfile.close();
    return;
}

/* Function printmenu() */
void printmenu(void)
{
    cout << "\n\n\n\n\n\n\n";
    cout << "To obtain a list of contestants with a given\n";
    cout << "trait, select a trait from the list and type in\n";
    cout << "the number corresponding to that trait.\n\n";
    cout << "To quit, select 0.\n\n";
    cout << "\t****************************\n";
    cout << "\t    List of Choices         \n";
    cout << "\t****************************\n";
    cout << "\t     0 -- quit\n";
    cout << "\t     1 -- age\n";
    cout << "\t     2 -- gender\n";
    cout << "\t     3 -- hair color\n";
    cout << "\t     4 -- title\n";
    cout << "\t     5 -- salary\n";
    cout << "\n\n\tEnter your selection, 0-5: ";
    return;
}

/* Function selecttrait() */
int selecttrait(Con contestant[], int num)
{
    int choice;

    do {
        cin >> choice;
        switch(choice)
        {
            case 0:
                break;
            case 1:
                findage(contestant,num);
                break;
            case 2:
                findgender(contestant,num);
                break;
            case 3:
                findhair(contestant,num);
                break;
            case 4:
                findtitle(contestant,num);
                break;
            case 5:
                findsalary(contestant,num);
                break;
            default:
                cout << "Incorrect value; try again\n";
                cout << "\n\tEnter your selection, 0-5: ";
                break;
        }
    } while (choice < 0 || choice > 5);
    return (choice);
}

/* Function findage() */
void findage(Con contestant[], int num)
{
    int agewanted,found=0;

    cout << "\n\nEnter the age you want: ";
    cin >> agewanted;
    cout << "\nContestants whose age is " <<agewanted<<"\n\n";
    for (int count = 0; count < num; count++)
        if (contestant[count].compareage(agewanted))
            found++;
    if (!found)
        cout << "No contestants of this age\n\n";
    else
        cout << endl << found << " contestants found\n";

    // give user a chance to look at output before printing menu
    pause();

    return;
}

/* Function pause() */
void pause(void)
{
    system("pause");
    return;
}

void findgender(Con [], int)
{
}

void findhair(Con [], int)
{
}

void findtitle(Con [], int)
{
}

void findsalary(Con [], int)
{
}

/* Member Function readdata() */
/* Con member function readdata():
 * Input:
 *  cfile - a reference to the input file
 * Process:
 *  read the input file and load the object's data members
 * Output:
 *  return true if file is read and object fields loaded
 *  else return false if EOF reached.
 */
bool Con::readdata(ifstream &cfile)
{
    if (cfile >> name.last)
    {
        cfile >> name.first;
        cfile >> personal.gender;
        cfile >> personal.haircolor;
        cfile >> personal.age;
        cfile >> personal.job.title;
        cfile >> personal.job.salary;
        return true;
	}
    return false;
	}

/* Member Function prettyprint: */
/* Con member function prettyprint():
 * Input:
 *  dbfile - a reference to the output file
 * Process:
 *  write the object's data members to the output file
 * Output:
 *  the written data members of the object
 */
void Con::prettyprint(ofstream &dbfile)
{
    dbfile.setf(ios::fixed,ios::floatfield);
    dbfile.precision(2);                        //set decimal precision

    dbfile << name.first;
    dbfile << "\t" << name.last;
    dbfile << "\t" << personal.gender;
    dbfile << "\t" << personal.haircolor;
    dbfile << "\t" << personal.age;
    dbfile << "\t" << personal.job.title;
    dbfile << "\t";
    dbfile.width(9);
    dbfile << personal.job.salary;
    dbfile << endl;

    return;
}

/* Member Function compareage() */
/* Con member function compareage():
 * Input:
 *  agewanted - age wanted
 * Process:
 *  compare agewanted to the object's age
 * Output:
 *  if ages are the same, print the object's name and return true
 *  else return false
 */
bool Con::compareage(int agewanted)
{
    if (personal.age == agewanted)
    {
        cout << name.first << " " << name.last << endl;
        return true;
    }
    return false;
}