package lol;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.util.ArrayList;

public class Main
{
    public static void main(String[] args) throws FileNotFoundException
    {
        Scanner in = new Scanner(System.in);

        EmployeeStore store = new EmployeeStore();
        ArrayList<Employee> emp;
        store.writeToArray();

        String loggedUser = "";
        boolean authState = false;
        boolean loopState = true; //Boolean for Switch Statement While Loop


        //Pre-Created Users
        //store.addUser("admin", 23, 04, 1997, "1234", "08617569");

        //Update *emp* array
        emp = store.getAllUsers();

        System.out.println("Warning: Terminating Application during Runtime will not save any changes made.\n");
        System.out.println("Amending Employees in 'employees.txt'. Format: name;day-month-year;password;phone\n");

        System.out.println("List Of All ID's and Names:");
        for(Employee e : emp)
        {
            System.out.println(e.getId() + " : " + e.getEmpName());
        }

        System.out.println("\nEnter Employee ID: ");
        long empId = in.nextLong();

        in.nextLine();

        System.out.println("Enter Password: ");
        String password = in.nextLine();

        //User Login
        for(Employee x : emp)
        {
            if(x.isAuthorised(empId, password))
            {
                loggedUser = x.getEmpName();
                x.setLogInState();
                authState = x.getLogInState();
                store.getCurrentUser(x.getId());
            }

        }

        //User Logged In
        while(authState == true)
        {
            System.out.println("\nWelcome : " + store.capFirst(loggedUser));

            boolean isAdmin = false;

            if(loggedUser.equalsIgnoreCase("admin"))
            {
                isAdmin = true;
            }

            while(loopState == true)
            {

            System.out.println("\nSelect a Menu: "
                    + "\n[1]: Add an Employee "
                    + "\n[2]: Edit an Employee "
                    + "\n[3]: Delete an Employee "
                    + "\n[4]: Show All Employees "
                    + "\n[5]: Search Employee Name "
                    + "\n[6]: Log out. "
                    + "\nChoice: ");

                int choice = in.nextInt();

                switch(choice)
                {
                    case 1://Add New Employee

                        in.nextLine();

                        System.out.println("Enter Employee Name: ");
                        String newUsername = in.nextLine();

                        System.out.println("Enter Birth [Day]: ");
                        int newDay = in.nextInt();

                        while(newDay > 31 || newDay < 1)
                        {
                            System.out.println("\nDay out of Bounds. Try again:");
                            newDay = in.nextInt();
                        }

                        System.out.println("Enter Birth [Month]: ");
                        int newMonth = in.nextInt();

                        while(newMonth > 12 || newMonth < 1)
                        {
                            System.out.println("\nMonth out of Bounds. Try again:");
                            newMonth = in.nextInt();
                        }

                        System.out.println("Enter Birth [Year]: ");
                        int newYear = in.nextInt();

                        while(newYear < 1950 || newYear > 1998)
                        {
                            System.out.println("\nYear out of Bounds. Try again:");
                            newYear = in.nextInt();
                        }

                        in.nextLine();

                        System.out.println("Enter Password: ");
                        String newPassword = in.nextLine();

                        System.out.println("Enter Phone Number [8-Digits Long]: ");
                        String newPhone = in.nextLine();

                        while(newPhone.length() != 8)
                        {
                            System.out.println("\nIncorrect.\nEnter Phone Number [8-Digits Long]: ");
                            newPhone = in.nextLine();
                        }

                        if(!store.isEmptyInput(newUsername, newPassword, newPhone))
                        {
                            store.addNewUser(newUsername, newDay, newMonth, newYear, newPassword, newPhone);
                            emp = store.getAllUsers();
                        }else
                        {
                            System.out.println("User not added. \nOne or more fields were left empty.");
                        }

                        break;

                    case 2:

                        for(Employee user : emp)
                        {
                            System.out.println(user.toString());
                        }

                        System.out.println("\nEnter ID to Edit: ");
                        long searchId = in.nextLong();

                        in.nextLine();

                        if(store.retrunNamefromId(searchId).equalsIgnoreCase("admin"))
                        {
                            System.out.println("Cannot Edit Admin, Please Refer Back to 'employees.txt' to edit.");
                            break;
                        }

                        if(store.isValidId(searchId))
                        {

                            System.out.println("\nEnter New Employee Name or Type [-1] to Keep Old Name:");
                            String nameNew = in.nextLine();

                            while(store.isValidName(nameNew) == false)
                            {
                                System.out.println("\nName already exists. Try again or Type [-1] to Keep Old Name:");
                                nameNew = in.nextLine();
                            }

                            System.out.println("\nEnter New [Day] of Birth or Type [-1] to Keep Old Day:");
                            int dayNew = in.nextInt();

                            while(dayNew > 31 || dayNew < 1)
                            {
                                if(dayNew == -1)
                                {
                                    break;
                                }
                                System.out.println("\nDay out of Bounds. Try again:");
                                dayNew = in.nextInt();
                            }

                            System.out.println("\nEnter New [Month] of Birth or Type [-1] to Keep Old Month:");
                            int monthNew = in.nextInt();

                            while(monthNew > 12 || monthNew < 1)
                            {
                                if(dayNew == -1)
                                {
                                    break;
                                }
                                System.out.println("\nMonth out of Bounds. Try again:");
                                monthNew = in.nextInt();
                            }

                            System.out.println("\nEnter New [Year] of Birth or Type [-1] to Kee Old Year:");
                            int yearNew = in.nextInt();

                            while(yearNew < 1950 || yearNew > 1998)
                            {
                                if(dayNew == -1)
                                {
                                    break;
                                }
                                System.out.println("\nDay out of Bounds. Try again:");
                                yearNew = in.nextInt();
                            }

                            in.nextLine();

                            System.out.println("\nEnter New Password or Type [-1] to Keep Old Password:");
                            String passwordNew = in.nextLine();

                            System.out.println("\nEnter New Phone Number or Type [-1] to Keep Old Phone Number:");
                            String phoneNew = in.nextLine();

                            while(phoneNew.length() != 8)
                            {
                                if(dayNew == -1)
                                {
                                    break;
                                }
                                System.out.println("\nIncorrect.\nEnter Phone Number [8-Digits Long]:");
                                phoneNew = in.nextLine();
                            }

                            store.editUser(searchId, nameNew , dayNew, monthNew, yearNew, passwordNew, phoneNew);
                        }
                        else
                        {
                            System.out.println("User with ID [" + searchId + "] does not exist");
                        }

                        break;

                    case 3: //Remove Employee

                        if(isAdmin == true)
                        {
                                for(Employee user : emp)
                                {
                                    System.out.println(user.toString());
                                }

                            System.out.println("\nEnter ID to Delete: ");
                            long id = in.nextLong();

                            store.removeUser(id);
                        }else
                        {
                            System.out.println("You are not an admin.");
                        }

                        break;

                    case 4: //Display All Users

                        for(Employee user : emp)
                        {
                            System.out.println(user.toString());
                        }

                        break;

                    case 5: //Seach Specific Employee

                        in.nextLine(); //Fix Java Bug with nextInt()

                        System.out.println("Enter A Name To Search For: ");
                        String searchName = in.nextLine();

                        store.displaySpecificName(searchName);

                        break;

                    case 6: //Logout

                        authState = false;
                        loopState = false;
                        store.writeToFile();
                        System.out.println("Saving changes to File\nLogging Out...");

                        break;

                    default:

                        System.out.println("Incorrect Option.");
                        break;
                }

            }//End While(true)
        }
    }
}