Asgn 2(7)

#include <iostream>

#include <iomanip>    //Reservation Class

//Functions Class
#include <fstream>
#include <sstream>
#include <string>

#include <stdlib.h> //for exit() function
#define MAX 5       //Array Size/number of reservations allowed
using namespace std;

int found = 0;    //check whether there is any imported text files
string fileDirectory; //the .txt file directory

class Reservation{
private:
  int bookingNo;
  string name;
  int phoneNo;
  int paxNo;
  int time;
  int date;

public:
  Reservation(){
    bookingNo = 1;
    name = "Tan Phit Huan";
    phoneNo = 0123456777;
    paxNo = 1;
    time = 1500;
    date = 20190101;
  }
  Reservation(int bNo, string na, int phNo, int pxNo, int t, int da){
    bookingNo = bNo;
    name = na;
    phoneNo = phNo;
    paxNo = pxNo;
    time = t;
    date = da;
  }
  void setBookingNo(int bNo){
    bookingNo = bNo;
  }
  int getBookingNo(){
    return bookingNo;
  }
  void setName(string na){
    name = na;
  }
  string getName(){
    return name;
  }
  void setPhoneNo(int phNo){
    phoneNo = phNo;
  }
  int getPhoneNo(){
    return phoneNo;
  }
  void setPaxNo(int pxNo){
    paxNo = pxNo;
  }
  int getPaxNo(){
    return paxNo;
  }
  void setTime(int t){
    time = t;
  }
  int getTime(){
    return time;
  }
  void setDate(long da){
    date = da;
  }
  int getDate(){
    return date;
  }
  void display(){
    int monthNYear = date/100;

    int year = date/10000;
    int month = monthNYear-(year*100);
    int day = date - (monthNYear*100);

    cout<<"| "<<setfill(' ')<<bookingNo<<"   "
    <<left<<setw(30)<<name
    <<right<<setw(10)<<setfill('0')<<phoneNo
    <<setw(12)<<setfill(' ')<<paxNo<<setw(6)<<setfill(' ')<<" "
    <<setw(2)<<setfill('0')<< day <<"/"<<setw(2)<<setfill('0')<< month <<"/"<<setw(4)<<setfill('0')<< year<<setw(7)<<setfill(' ')<<" "
    <<setw(4)<<setfill('0')<< time <<" |"<<endl;
  }
};

class Functions{
public:
  //DISPLAY TABLE COLUMN NAMES
  void displayColumnNames(){
    cout<<setfill('_')<<setw(87)<<"_"<<endl
    <<setfill(' ')<<setw(5)<<"| No. "
    <<left<<setw(30)<<"Name"
    <<setw(5)<<"Phone No."
    <<right<<setw(16)<<"Pax No."
    <<setw(10)<<"Date"
    <<setw(16)<<"Time |"<<endl
    <<"|"<<right<<setfill('=')<<setw(86)<<"|"<<endl;
  }

  //TRIM FUNCTION
  string trim(const string& str){
      size_t first = str.find_first_not_of(' ');
      if (string::npos == first)
      {
          return str;
      }
      size_t last = str.find_last_not_of(' ');
      return str.substr(first, (last - first + 1));
  }

  //READ TEXT FILE FUNCTION
  void readTextFile(string fileDirectory, Reservation records[]){
    ifstream myFile(fileDirectory);
    if(!myFile.is_open()){
      cout<<endl<<"ERROR! File failed to open."<<endl;
      return;
    }

    found = 1;

    try{
    int i=0;  //index number
    string tempString,line;

    //Reservation Information
    int bkNo, phoneNo, paxNo, day, month, year, date, time;
    string name;

    while(getline(myFile, line)){   //reads a line
      // cout<<i<<endl;
      // if(i >= MAX){
      //   cout<<endl<<"Maximum of "<<MAX<<" reservations can be stored."<<endl
      //   <<"Some data will be lost."<<endl;
      //   break;
      // }
      stringstream ss(line);        //using stringstream to manipulate the line
      getline(ss, tempString, ' ');  //store the string in
      if(tempString != "|=====================================================================================|"){
        getline(ss, tempString, ' ');
        if(tempString != "No."){

          bkNo=stoi(tempString);    //convert tempString to integer

          getline(ss, tempString, '|');

          //gets substring from character in position 2 onwards, 30 characters(where name column occupies)
          //Then trim to get rid of empty spaces
          name = (trim(tempString.substr(2,30)));

          phoneNo = stoi(tempString.substr(32,10));

          //need to trim because there can be 1 or 2 digits
          paxNo = stoi(trim(tempString.substr(52,2)));

          day = stoi(tempString.substr(60,2));

          month = stoi(tempString.substr(63,2));

          year = stoi(tempString.substr(66,4));

          time = stoi(tempString.substr(77,4));

          date = year*10000 + month*100 + day;

          //Overriding the default/previous records with the new records
          records[i].setBookingNo(bkNo);
          records[i].setName(name);
          records[i].setPhoneNo(phoneNo);
          records[i].setPaxNo(paxNo);
          records[i].setDate(date);
          records[i].setTime(time);

          i++;
        }
      }

    }
    }catch(...){
      cout<<endl<<"ERROR! Import process cancelled."<<endl
      <<"Please check whether it is the correct text file or directory."<<endl;
      found = 0;
    }

    cout<<endl<<"Import Successful."<<endl;
    myFile.close();
  }

  //BUBBLE SORT FUNCTIONS
  //Sort by Name
  void bubbleSortName(Reservation records[]){
    int i,j;
    Reservation current;
    for(i=0; i<MAX;i++){
      for (j=0; j<MAX-1; j++){
        if(records[j].getName()>records[j+1].getName()){
          current = records[j];
          records[j] = records[j+1];
          records[j+1] = current;
        }
      }
    }
  }

  //Sort by Date
  void bubbleSortDate(Reservation records[]){
      int i,j;
      Reservation current;
      for(i=0; i<MAX;i++){
        for (j=0; j<MAX-1; j++){
          if(records[j].getDate()>records[j+1].getDate()){
            current = records[j];
            records[j] = records[j+1];
            records[j+1] = current;
          }
        }
      }
  }

  //Sort by Phone Number
  void bubbleSortPhoneNo(Reservation records[]){
      int i,j;
      Reservation current;
      for(i=0; i<MAX;i++){
        for (j=0; j<MAX-1; j++){
          if(records[j].getPhoneNo()>records[j+1].getPhoneNo()){
            current = records[j];
            records[j] = records[j+1];
            records[j+1] = current;
          }
        }
      }
  }

  //BINARY SEARCH FUNCTIONS
  //Search Phone No Record
  int binarySearchPhoneNo(Reservation records[], int key, int low, int high){
    int middle; //the middle index number of the array
    bubbleSortPhoneNo(records);
    while (low <= high ){
      middle = (low+high)/2;
      if(key==records[middle].getPhoneNo()){
        return middle;

      }else if(key<records[middle].getPhoneNo()){
        high = middle-1; //reset high index to left side

      }else{
        low = middle+1; //reset low index to right side

      }
    }

    return -1;   //key not found
  }

  //Search Name Record
  int binarySearchName(Reservation records[], string key, int low, int high){
    int middle; //the middle index number of the array
    bubbleSortPhoneNo(records);
    while (low <= high ){
      middle = (low+high)/2;
      if(key==records[middle].getName()){
        return middle;

      }else if(key<records[middle].getName()){
        high = middle-1; //reset high index to left side

      }else{
        low = middle+1; //reset low index to right side

      }
    }

    return -1;   //key not found
  }

  //RECURSION FUNCTIONS
  //Given date, Display all with same date
  void givenDate (Reservation A[], int date, int high){
    if (date == A[high].getDate() ){
      A[high].display();
      return givenDate(A, date, high-1);
    }
    else if (high < 0){
      return;
    }
    else {
      return givenDate(A, date, high-1);
    }
  }


  //PART 6 FUNCTION
  //Give number of pax, Display all with at least given number of pax
  void givenPaxNo (Reservation A[], int pax, int high){

    if (pax <= A[high].getPaxNo() ){
      A[high].display();
      return givenPaxNo(A, pax, high-1);
    }
    if(pax>A[high].getPaxNo()){
      return;
    }
    else if (high < 0){
      return;
    }
    else {
      return givenPaxNo(A, pax, high-1);
    }
  }

  //ERROR CHECKING FUNCTIONS
  //for checking whether the name is empty
  bool checkName(string name){
    int counter = 0;
    bool found = true;
    //if found any characters other than space
    if(name.find_first_not_of(" ") != string::npos){
      counter++;
    }

    //if found any characters other than the alphabets and a space
    if(name.find_first_not_of(" abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV") != string::npos){
      found = true;
    }else{
      found = false;
    }

    //if no input or if got any non alphabetic character
    if(counter == 0 || found){
      cout<<"Invalid Input! Need a name!"<<endl;
      return false;
    }else{
      return true;
    }
  }

  //Check whether that day exists
  bool checkDay(int day, int month, int year){
    //even months
    if(day <= 0){
      cout<<"Invalid Input! Enter positive numbers!"<<endl;
    }else if(month%2 == 0){
      // if the month is february
      if(month == 2){
        //february in common year that contain 28 days
        if(year%4 != 0 && day>28){
          cout << "Please key in between the day from 1 to 28"<< endl;
        }
        // february in leap year that contain 29 days
        else if(year%4 == 0 && day>29){
          cout << "Please key in between the day from 1 to 29"<< endl;
        }
        else{
          return true;
        }
      }
      // month that are even with 31 days
      else if(month > 7 && day > 31){
        cout << "Please key in between the day from 1 to 31"<< endl;
      }
      // month that are even  with 30 days
      else if(month < 7 && day > 30){
        cout << "Please key in between the day from 1 to 30"<< endl;
      }
      else{
        return true;
      }

    // month is odd
    }else if(month%2 != 0){
      // month that are odd with 30 days
      if(month>8 && day > 30){
        cout << "Please key in between the day from 1 to 30"<< endl;
      // month that are odd with 31 days
      }else if(month<8 && day > 31){
        cout << "Please key in between the day from 1 to 31"<< endl;
      }else{
        return true;
      }
    }
    else{
      return true;
    }
    return false;
  }
};

//Global Variables
Functions stuff;
Reservation records[MAX];

//Option 1: Display All sorted by...
void displayAll();
//Option 2: Search & Display...
void searchNDisplay();
//Option 3: Given...display all
void givenDisplayAll();

int main(){
  //DEFAULT RESERVATIONS
  if(found == 0){
    for(int i = 0; i<MAX; i++){
      records[i].setBookingNo(i+1);
    }

    records[0].setName("Tan Phit Huan");
    records[1].setName("Khong Ziv Hale");
    records[2].setName("Rex Luah");
    records[3].setName("Lee Yeu Gor");
    records[4].setName("Tiffany Pragasam");

    for(int i = 0; i<MAX; i++){
      records[i].setPhoneNo(123456777+i);
    }

    records[0].setPaxNo(2);
    records[1].setPaxNo(5);
    records[2].setPaxNo(7);
    records[3].setPaxNo(4);
    records[4].setPaxNo(10);

    records[0].setDate(20191212);
    records[1].setDate(20191111);
    records[2].setDate(20191111);
    records[3].setDate(20191212);
    records[4].setDate(20191211);

    for(int i = 0; i<MAX; i++){
      records[i].setTime(1200+(i*100));
    }
  }

  char choice;
  cout << "===============RESTAURANT RESERVATION SYSTEM II===============" << endl<<endl;
  if(found == 0){
    cout<<"< Currently using default reservation records >"<<endl<<endl;
  }else{
    cout<<"< Current Reservation Records : "<<fileDirectory<<" >"<<endl<<endl;
  }

  cout<< "Please enter your selection" << endl <<
    "1. Import Text File Data" << endl <<
    "2. Display All Sorted by..." << endl <<
    "3. Search & Display..." << endl <<
    "4. Given...display all..." << endl <<
    "5. Exit" << endl;

  cout << "Choice: ";
  cin >> choice;
  cin.clear();
  cin.ignore(1, '\n');
  system("CLS");

  switch (choice) {
  //Display All Sorted by...
  case '1':
    cout<<"Enter 0 to return to main menu."<<endl<<endl;

    cout<<"NOTE : - Only the .txt file created from the 'Restaurant Reservation System I' can be used."<<endl
    <<"       - Only "<<MAX<<" reservations are allowed."<<endl<<endl;

    cout<<"Please enter file directory of .txt file (e.g : /Users/TiffanyP/Desktop/Reservations.txt) : "<<endl;
    cin>>fileDirectory;

    if(fileDirectory != "0"){
      stuff.readTextFile(fileDirectory, records);
    }

    getchar();
    cout <<endl<< "Press enter to continue . . .";
    cin.clear();
    cin.ignore(1000, '\n');
    system("CLS");
    main();

  //Display All Sorted by...
  case '2':
    displayAll();

  //Search...
  case '3':
    searchNDisplay();

  //Given...display all
  case '4':
    givenDisplayAll();

  case '5':
    exit(1);

  default:
    cout << choice << " is not valid choice" << endl;
    main();
  }

  return 0;
}

//Option 1 : Display All sorted by...
void displayAll(){
  char choice;
  cout << "-----------------=DISPLAY ALL=------------------" << endl;
  cout << "Display all sorted by..." << endl <<
  "1. Name" << endl <<
  "2. Date" << endl<<
  "3. Back to Main Menu"<< endl;
  cout << "Choice: ";
  cin >> choice;
  cin.clear();
  cin.ignore(1, '\n');
  system("CLS");

  switch (choice) {

  //Display all sorted by name (PART 1)
  case '1':
    stuff.bubbleSortName(records);
    stuff.displayColumnNames();

    for(int i = 0; i<MAX; i++){
      records[i].display();
    }
    cout<<setfill('-')<<setw(87)<<"-"<<endl;

    break;

  //Display all sorted by date (PART 2)
  case '2':
    stuff.bubbleSortDate(records);
    stuff.displayColumnNames();

    for(int i = 0; i<MAX; i++){
      records[i].display();
    }
    cout<<setfill('-')<<setw(87)<<"-"<<endl;

    break;

  case '3':
    main();

  default:
    cout << choice << " is not valid choice" << endl<<endl;
    displayAll();
  }

  cout <<endl<< "Press enter to continue . . .";
  cin.clear();
  cin.ignore(1000, '\n');
  system("CLS");
  main();
}

//Option 2 : Search...
void searchNDisplay(){
  char choice;
  int foundIndex, phoneNo, correct;
  string name;
  cout << "-----------------=SEARCH & DISPLAY=------------------" << endl;
  cout << "Search..." << endl <<
  "1. Phone Number" << endl <<
  "2. Name" << endl<<
  "3. Back to Main Menu"<< endl;
  cout << "Choice: ";
  cin >> choice;
  cin.clear();
  cin.ignore(1, '\n');
  system("CLS");

  switch (choice) {

  //Search by Phone Number (PART 3)
  case '1':
    cout<<endl<<"Enter phone number (e.g : 0123456789) : ";
    cin>>phoneNo;

    correct = 1;
    while (correct == 1){
      if (cin.fail() || phoneNo<0){
        cin.clear();
        cin.ignore();
        cout << "Invalid input! Enter positive numbers!" << endl<<endl;
        cout<< "Enter phone number (e.g : 0123456789) : ";
        cin >> phoneNo;
      }else{
        correct = 0;
      }
    }

    foundIndex = stuff.binarySearchPhoneNo(records, phoneNo, 0, MAX-1);
    //If not found
    if(foundIndex==-1){
      cout<<"No such record with that phone number."<<endl;
    }else{
      //If found
      stuff.displayColumnNames();
      records[foundIndex].display();
    }
    cout<<setfill('-')<<setw(87)<<"-"<<endl;

    getchar();
    cout <<endl<< "Press enter to continue . . .";
    cin.clear();
    cin.ignore(1000, '\n');
    system("CLS");
    main();

  //Search by Name (PART 4)
  case '2':
    do{
      cout<<"Enter name : ";
      getline(cin, name);
    }while(!stuff.checkName(name));

    foundIndex = stuff.binarySearchName(records, name, 0, MAX-1);
    //If not found
    if(foundIndex==-1){
      cout<<"No such record with that name."<<endl;
    }else{
      //If found
      stuff.displayColumnNames();
      records[foundIndex].display();
    }
    cout<<setfill('-')<<setw(87)<<"-"<<endl;

    cout <<endl<< "Press enter to continue . . .";
    cin.clear();
    cin.ignore(1000, '\n');
    system("CLS");
    main();

  case '3':
    main();

  default:
    cout << choice << " is not valid choice" << endl<<endl;
    searchNDisplay();
  }
}

//Option 3 : Given...display all
void givenDisplayAll(){
  char choice;
  int year, month, day, date, paxNo, correct;
  cout << "-----------------=GIVEN DISPLAY ALL=------------------" << endl;
  cout << "Given...display all records with..." << endl <<
  "1. Date, the same date" << endl <<
  "2. Number of Pax, at least the given number of pax" << endl<<
  "3. Back to Main Menu"<< endl;
  cout << "Choice: ";
  cin >> choice;
  cin.clear();
  cin.ignore(1, '\n');
  system("CLS");

  switch (choice) {

  //Display by Date (PART 5)
  case '1':
    correct = 1;
    cout<<endl<<"Enter year (e.g : 2019): ";
    cin>>year;
    while (correct == 1){
      if (cin.fail() || year<0){
        cin.clear();
        cin.ignore();
        cout << "Invalid input! Enter positive numbers!" << endl<<endl;
        cout<< "Enter year (e.g : 2019) : ";
        cin >> year;
        //reset if a year before 2019 was entered then 2022 or later is entered
      }else{
        correct = 0;
      }
    }

    correct = 1;
    cout<<endl<<"Enter month (e.g : January = 1) : ";
    cin>>month;
    while (correct == 1){
      if (cin.fail() || month<1 || month>12){
        cin.clear();
        cin.ignore();
        cout << "Invalid input! Only numbers from 1 to 12!" << endl<<endl;
        cout<< "Enter month (e.g : January = 1) : ";
        cin >> month;
      }else{
        correct = 0;
      }
    }

    do{
      correct = 1;
      cout<<endl<<"Enter day : ";
      cin>>day;
      while (correct == 1){
        if (cin.fail()){
          cin.clear();
          cin.ignore();
          cout << "Invalid input! Enter numbers!" << endl<<endl;
          cout<< "Enter day : ";
          cin >> day;
        }else{
          correct = 0;
        }
      }
    }while(!stuff.checkDay(day, month, year));

    date = year*10000 + month*100 + day;
    stuff.displayColumnNames();
    //Call recursion function here
    stuff.givenDate(records, date, MAX-1);
    cout<<setfill('-')<<setw(87)<<"-"<<endl;
    break;

  //Display by Pax Number (PART 6)
  case '2':
    correct = 1;
    cout<<endl<<"Enter number of pax : ";
    cin>>paxNo;

    while (correct == 1){
      if (cin.fail() || paxNo<=0){
        cin.clear();
        cin.ignore();
        cout << "Invalid input! Enter positive numbers (mininimum : 1)!" << endl<<endl;
        cout<< "Enter number of pax : ";
        cin >> paxNo;
      }else{
        correct = 0;
      }
    }

    stuff.displayColumnNames();
    //Call recursion function here
    stuff.givenPaxNo(records, paxNo, MAX-1);
    cout<<setfill('-')<<setw(87)<<"-"<<endl;
    break;

  case '3':
    main();

  default:
    cout << choice << " is not valid choice" << endl;
    displayAll();
  }

  getchar();
  cout <<endl<< "Press enter to continue . . .";
  cin.clear();
  cin.ignore(1000, '\n');
  system("CLS");
  main();
}