// CST116F2021-Lab9.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>

using namespace std;

const int ARRAY_SIZE = 4;
const int NUM_RECORDS = 100;
const int NAME_SIZE = 100;

int menuSelect(int);
void getInput(char[NAME_SIZE]);
void readFile(char[NAME_SIZE], string[][ARRAY_SIZE]);
void findData(string[][ARRAY_SIZE]);
void addData(string[][ARRAY_SIZE]);
void sortData(string[][ARRAY_SIZE]);
void editData(string[][ARRAY_SIZE]);
void dispData(string[][ARRAY_SIZE]);

int main()
{
	int menu = 0;
	char file_name[NAME_SIZE]{};
	string info[NUM_RECORDS][ARRAY_SIZE];

	getInput(file_name);
	readFile(file_name);

	while (menu != 5)
		menuSelect(menu);

	switch (menu)
	{
	default:
	{
		cout << "Invalid menu selection." << endl;
		break;
	}
	case 1:
	{
		findData(info);
		break;
	}
	case 2:
	{
		addData(info);
		break;
	}
	case 3:
	{
		editData(info);
		break;
	}
	case 4:
	{
		dispData(info);
		break;
	}
	case 5:
		break;
	}
	//Before program closes, files must be updated with the new database stored in 'info'
	cout << "Exiting Program." << endl;
	return 0;
}

void getInput(char inputFileName[])
{
	cout << "Please enter the file name: ";
	cin >> inputFileName;
}

void readFile(char readFileName[], string readArray[][ARRAY_SIZE])
{
    int i = 0, j = 0;
	string temp;

    ifstream inFile;
    inFile.open(readFileName);

    if (inFile.is_open())
    {
        cout << "File is opened." << endl;
        while (!inFile.eof())
        {
			//add a counter i for the number of lines in the inFile
			while (j < ARRAY_SIZE)
			{
				getline(inFile, temp, ' ');
				readArray[i][j] = temp;
				j++;
			}
        }
    }
    inFile.close(); //going to be editting the inFile so don't close yet
    return;
}

int menuSelect(int inputMenu)
{
	cout << "Please select from the following options:" << endl << "\t1) Find a person's information" << endl << "\t2) Add a person to the database" << endl << "\t3) Edit a person's information" << endl << "\t4) Display all records to the screen" << endl << "\t5) Quit" << endl;
	cin >> inputMenu;

	return inputMenu;
}

void findData(string findArray[][ARRAY_SIZE])
{
	string name;
	int found = false, left = 0, right = sizeof(findArray), mid = 0;


	cout << "Please enter the last name of the user you are looking for: ";
	cin >> name;

	while (!found && left <= right)
	{

	}
	//Find function needs to specify the location of the user for edit function
}

void addData(string addArray[][ARRAY_SIZE])
{
	int i = 0;

	while (i < NUM_RECORDS)
	{
		if (addArray[i][0] == "\0") //Should stop at the first empty entry
		{
			cout << "Please enter the last name: ";
			cin >> addArray[i][0];

			cout << "Please enter the first name: ";
			cin >> addArray[i][1];

			cout << "Please enter the phone number in format ###-###-####: ";
			cin >> addArray[i][2];

			cout << "Please enter the birthday in format mm-dd-yyyy: ";
			cin >> addArray[i][3];
			break;
		}
		else
			i++;
	}
	sortData(addArray);
}

void sortData(string sortArray[][ARRAY_SIZE])
{

}

void editData(string editArray[][ARRAY_SIZE])
{
	int select = 0, i = 0;
	findData(editArray);
	//Find function needs to give a value for i so the program correctly edits the specified user


	cout << "Please select from the following options:" << endl << "\t1) Change Last Name" << endl << "\t2) Change First Name" << endl << "\t3) Change Phone Number" << endl << "\t4) Change Birthday" << endl << "\t5) Quit" << endl;
	cin >> select;

	switch (select)
	{
	default:
	{
		cout << "Invalid selection." << endl;
		break;
	}
	case 1:
	{
		cout << "Please enter the last name: ";
		cin >> editArray[i][0];
		break;
	}
	case 2:
	{
		cout << "Please enter the first name: ";
		cin >> editArray[i][1];
		break;
	}
	case 3:
	{
		cout << "Please enter the phone number in format ###-###-####: ";
		cin >> editArray[i][2];
		break;
	}
	case 4:
	{
		cout << "Please enter the birthday in format mm-dd-yyyy: ";
		cin >> editArray[i][3];
		break;
	}
	case 5:
	{
		cout << "No changes made." << endl;
		break;
	}
	}
	if (select > 0 && select <= 4)
		sortData(editArray);
}

void dispData(string dispArray[][ARRAY_SIZE])
{
	cout << setw(20) << "Entry Number" << setw(20) << "Last Name" << setw(20) << "First Name" << setw(20) << "Phone Number" << setw(20) << "Birthday" << endl;
	for (int i = 0; i < sizeof(dispArray); i++) //Should only display filled entries
	{
		cout << setw(20) << i;
		for (int j = 0; j < ARRAY_SIZE; j++)
		{
			cout << setw(20) << dispArray[i][j];
		}
		cout << endl;
	}
}


//PROGRAM 2
//#include <iostream>
//#include <fstream>
//#include <string>
//
//using namespace std;
//
//#define ARRAY_SIZE 100
//
//void getInput(char[ARRAY_SIZE]);
//void readFile(char[ARRAY_SIZE]);
//
//int main()
//{
//	char file_name[ARRAY_SIZE];
//	string sentences[ARRAY_SIZE];
//
//    getInput(file_name);
//    readFile(file_name);
//
//    return 0;
//}
//
//void getInput(char inputFileName[])
//{
//	cout << "Please enter the file name: ";
//	cin >> inputFileName;
//}
//
//void readFile(char readFileName[])
//{
//    int i = 1, num_char = 0;
//    string temp;
//
//
//    ifstream inFile;
//    inFile.open(readFileName);
//
//    if (inFile.is_open())
//    {
//        cout << "File is opened." << endl;
//        while (!inFile.eof())
//        {
//            getline(inFile, temp, '\n');
//            num_char = temp.length();
//            cout << i << ' ' << temp << ' ' << num_char << " characters in this string." << endl;
//            i++;
//        }
//    }
//    inFile.close();
//    return;
//}


//PROGRAM 1
//#include <iostream>
//#include <string>
//#include <fstream>
//#include <stdio.h>
//
//using namespace std;
//
//#define ARRAY_SIZE 100
//#define MAX_VALUES 10
//
//void getInput(char[ARRAY_SIZE]);
//void readFile(int[MAX_VALUES], char[ARRAY_SIZE]);
//void findHiLo(int[MAX_VALUES]);
//void sortAscending(int[MAX_VALUES]);
//
//int main()
//{
//
//	
//	char file_name[ARRAY_SIZE]{'\0'};
//    int integers[MAX_VALUES]{};
//
//    getInput(file_name);
//    readFile(integers, file_name);
//    findHiLo(integers);
//    sortAscending(integers);
//    return 0;
//	
//}
//
//void getInput(char inputFileName[])
//{
//    cout << "Please enter the file name: ";
//    cin >> inputFileName;
//}
//
//void readFile(int readArray[], char readFileName[])
//{
//    int i = 0;
//    string temp_s;
//    int temp_i = 0;
//
//    ifstream inFile;
//    inFile.open(readFileName);
//
//    if (inFile.is_open())
//    {
//        cout << "File is opened." << endl;
//        while (!inFile.eof())
//        {
//            while (i < MAX_VALUES)
//            {
//                getline(inFile, temp_s, ' ');
//                temp_i = stoi(temp_s);
//                readArray[i] = temp_i;
//                i++;
//            }
//        }
//    }
//    inFile.close();
//    return;
//}
//
//void findHiLo(int findArray[])
//{
//    int i = 1, high = 0, low = 0;
//    low = findArray[0];
//    high = findArray[0];
//    while (i < MAX_VALUES)
//    {
//        if (low > findArray[i])
//            low = findArray[i];
//        if (high < findArray[i])
//            high = findArray[i];
//        i++;
//    }
//
//    cout << "The largest number is " << high << " and the smallest number is " << low << endl;
//}
//
//void sortAscending(int sortArray[])
//{
//    int i = 0, j = 0, temp = 0;
//
//    while (i < MAX_VALUES)
//    {
//        j = i + 1;
//        while (j < MAX_VALUES)
//        {
//            if (sortArray[i] > sortArray[j])
//            {
//                temp = sortArray[i];
//                sortArray[i] = sortArray[j];
//                sortArray[j] = temp;
//            }
//            j++;
//        }
//        i++;
//    }
//
//    i = 0;
//    while (i < MAX_VALUES)
//    {
//        cout << sortArray[i] << endl;
//        i++;
//    }
//}