/*
 * Address Book ALPHA
 */
#include<iostream>
#include<string>
#include"Record.h"
using namespace std;

// menu variable
string mainChoice;
string subChoice;

// input date varible
string Name;
string Email;
int Phonenumber;

// search varible
string searchName;
string searchEmail;
int searchPhonenumber;
bool successfulSearch;

// record varible
string totalCreate = 0;
int totalRecords = 0;
Record arrayRecords[100];

int main() {
    while (mainChoice[0] != '5') {
        // main menu OK
        cout << endl;
        cout << "***********MAIN MENU*************" << endl;
        cout << "1. Initialize the address book" << endl;
        cout << "2. Create person contact information" << endl;
        cout << "3. Lookup person contact information" << endl;
        cout << "4. Lookup all person contact information" << endl;
        cout << "5. Quit" << endl;
        cout << endl;

        mainChoice = '0';
        cout << "Please enter your chioce (1, 2, 3, 4 or 5 to quit): " << endl;
        getline(cin, mainChoice);

        switch (mainChoice[0]) {

        case '1': // 1. Initialize the address book OK

            // delete all date OK
            totalRecords = 0;
            for (int i = 0; i < 100; i++) {
                arrayRecords[i].setName("");
                arrayRecords[i].setEmail("");
                arrayRecords[i].setPhonenumber(NULL);
            }

            // output name list OK
            // input date OK
            cout << "Name is : Lawrence Cheung" << endl
                << "Email is: enccl@eie.polyu.edu.hk" << endl
                << "Telephone number is: 27666131" << endl;

                arrayRecords[0].setName("Lawrence Cheung");
                arrayRecords[0].setEmail("enccl@eie.polyu.edu.hk");
                arrayRecords[0].setPhonenumber(27666131);

            cout << "Name is: Helen Wong" << endl
                << "Email is: helenworng@yahoo.com.hk" << endl
                << "Telephone number is: 94665888" << endl;

            arrayRecords[1].setName("Helen Wong");
            arrayRecords[1].setEmail("helenworng@yahoo.com.hk");
            arrayRecords[1].setPhonenumber(94665888);

            cout << "Name is: Simon Sui" << endl
                << "Email is: ss123@gmail.com" << endl
                << "Telephone number is: 64441234" << endl;

            arrayRecords[2].setName("Simon Sui");
            arrayRecords[2].setEmail("ss123@gmail.com");
            arrayRecords[2].setPhonenumber(64441234);

            cout << "Name is: Mary Ho" << endl
                << "Email is: ho.mary10@netvigator.com" << endl
                << "Telephone number is: 21111112" << endl;

            arrayRecords[3].setName("Mary Ho");
            arrayRecords[3].setEmail("ho.mary10@netvigator.com");
            arrayRecords[3].setPhonenumber(21111112);

            totalRecords = 4;
            cout << "Initialzation is completed." << endl;
            break;

        case '2': // 2. Create person contact information
            cout << "Please enter the total number of records to be created: " << endl;
            getline(cin, totalCreate);

            //int test = atoi(totalCreate.c_str());

            for (int i = 0;; i++) {
                // totalCreate checking loop OK
                if (atoi(totalCreate.c_str()) <= 0 || atoi(totalCreate.c_str()) > 10
                    || totalCreate.find_first_not_of("0123456789", 0) < totalCreate.length()) {

                    cout << "The input is invalid. It must be and integer not greater than 10." << endl;
                    cout << "Please enter the total number of records to be created: ";
                    getline(cin, totalCreate);
                }
                else {
                    break;
                }
            }


            for (int i = totalRecords; i < (totalRecords + atoi(totalCreate.c_str())); i++) {
                // name input OK
                cout << "Name is: ";
                getline(cin, Name);
                getline(cin, Name);

                for (int j = 0;; j++) {
                    // name checking loop
                    if (Name.find_first_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ", 0) < Name.length()) {
                        cout << "The input is invalid. Only space characters and letters are allowed." << endl;
                        cout << "Name is: ";
                        getline(cin, Name);
                    }
                    else {
                        break;
                    }
                }

                arrayRecords[i].setName(Name);

                // email input OK
                cout << "Email is: ";
                cin >> Email;

                for (int j = 0;; j++) {
                    // email checking loop
                    if (Email.find("@", 0) == 0 || Email.find("@", 0) == Email.length() - 1 || Email.find("@", 0) >= Email.length() ) {
                        cout << "The input is invalid. One character '@' must be found and there must be some characters before and after the character '@'." << endl;
                        cout << "Email is: ";
                        cin >> Email;
                    }
                    else {
                        break;
                    }
                }

                arrayRecords[i].setEmail(Email);

                // telephone number input OK
                cout << "Telephone number is: ";
                cin >> Phonenumber;

                for (int j = 0;; j++) {
                    // telephone number checking loop OK
                    if (!cin || Phonenumber - 10000000 <= 0 || Phonenumber > 99999999) {
                        cin.clear();
                        cin.ignore(numeric_limits < streamsize > ::max(), '\n');
                        cout << "The input is invalid. It must be an 8-digit integer and the first digit cannot be zero." << endl;
                        cout << "Telephone number is: ";
                        cin >> Phonenumber;
                    }
                    else {
                        break;
                    }
                }

                arrayRecords[i].setPhonenumber(Phonenumber);
            }

            totalRecords += atoi(totalCreate.c_str());
            cout << "All new records are saved!" << endl;
            break;

        case '3': // 3. Lookup person contact information
            subChoice = '0';
            while (subChoice[0] != 'd') {
                // sub-menu OK
                cout << endl;
                cout << "***********SUB-MENU*************" << endl;
                cout << "a. Search record by name" << endl;
                cout << "b. Search record by email address" << endl;
                cout << "c. Search record by telephone number" << endl;
                cout << "d. Return to main menu" << endl;
                cout << endl;

                cout << "Please enter your chioce (a, b, c, or d to return): " << endl;
                getline(cin, subChoice);

                switch (subChoice[0]) {

                case 'a': // a. Search record by name
                    cout << "Please enter a name to search: " << endl;
                    getline(cin, searchName);

                    for (int j = 0;; j++) {
                        // name checking loop
                        if (searchName.find_first_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ", 0) < searchName.length()) {
                            cout << "The input is invalid. Only space characters and letters are allowed." << endl;
                            cout << "Please enter a name to search : " << endl;;
                            getline(cin, searchName);
                        }
                        else {
                            break;
                        }
                    }

                    // search name
                    successfulSearch = false;
                    for (int i = 0; i < totalRecords; i++) {
                        if (arrayRecords[i].getName() == searchName) {
                            cout << endl << "A record is found!" << endl;
                            cout << "Name is: " << arrayRecords[i].getName() << endl
                                << "Eamil is: " << arrayRecords[i].getEmail() << endl
                                << "Telephone number is: " << arrayRecords[i].getPhonenumber() << endl;
                            successfulSearch = true;
                        }
                    }
                    if (successfulSearch != true) {
                        cout << endl << "Sorry, no record is found!" << endl;
                    }
                    break;

                case 'b': // b. Search record by email address
                    cout << "Please enter an email address to search: " << endl;
                    cin >> searchEmail;

                    for (int j = 0;; j++) {
                        // email checking loop
                        if (searchEmail.find("@", 0) == 0 || searchEmail.find("@", 0) == searchEmail.length() - 1 || searchEmail.find("@", 0) >= searchEmail.length()) {
                            cout << "The input is invalid. One character '@' must be found and there must be some characters before and after teh character '@'." << endl;
                            cout << "Please enter an email address to search: " << endl;
                            cin >> searchEmail;
                        }
                        else {
                            break;
                        }
                    }

                    // search email
                    successfulSearch = false;
                    for (int i = 0; i < totalRecords; i++) {
                        if (arrayRecords[i].getEmail() == searchEmail) {
                            cout << endl << "A record is found!" << endl;
                            cout << "Name is: " << arrayRecords[i].getName() << endl
                                << "Eamil is: " << arrayRecords[i].getEmail() << endl
                                << "Telephone number is: " << arrayRecords[i].getPhonenumber() << endl;
                            successfulSearch = true;
                        }
                    }
                    if (successfulSearch != true) {
                        cout << endl << "Sorry, no record is found!" << endl;
                    }
                    break;

                case 'c': // c. Search record by telephone number
                    cout << "Please enter a telephone number to search: " << endl;
                    cin >> searchPhonenumber;

                    // search phone number
                    successfulSearch = false;
                    for (int i = 0; i < totalRecords; i++) {
                        if (arrayRecords[i].getPhonenumber() == searchPhonenumber) {
                            cout << endl << "A record is found!" << endl;
                            cout << "Name is: " << arrayRecords[i].getName() << endl
                                << "Eamil is: " << arrayRecords[i].getEmail() << endl
                                << "Telephone number is: " << arrayRecords[i].getPhonenumber() << endl;
                            successfulSearch = true;
                        }
                    }
                    if (successfulSearch != true) {
                        cout << endl << "Sorry, no record is found!" << endl;
                    }
                    break;

                case 'd': // d.Return to main menu
                    break;

                default: // error message OK
                    cout << endl << "Invalid input. Please enter again!" << endl;
                    break;
                }

            }
            break;

        case '4': // 4. Lookup all person contact information OK
            for (int i = 0; i < totalRecords; i++) {
                cout << "Name is: " << arrayRecords[i].getName() << endl
                    << "Eamil is: " << arrayRecords[i].getEmail() << endl
                    << "Telephone number is: " << arrayRecords[i].getPhonenumber() << endl;
            }
            break;

        case '5': //5. Quit OK
            cout << "Goodbye!" << endl;
            break;

        default: // error message OK
            cout << endl << "Invalid input. Please enter again!" << endl;
            cout << "main choice 0 is: " << mainChoice[0] << endl;
            break;
        }
    }

    return 0;
}