using Ophelias.Models;
using Ophelias.Managers;
using Ophelias.Expressions;
using System.Data.SQLite;

class Program
{
    private static void GuestMode()
    {
        Reservation? activeReservation = null;
        Guest? activeGuest = null;

        void help()
        {
            Console.WriteLine(
                "Reservation Commands:\n" +
                "\treservation create\n" +
                "\treservation update\n" +
                "\treservation cancel\n" +
                "Account Commands:\n" +
                "\taccount create\n" +
                "\taccount update\n" +
                "Enter Q to quit.\n"
            );
            return;
        }



        void CreateNewReservation()
        {
            Reservation newReservation;
        }

        void CreateNewGuestPrompt()
        {
            (string?, string?, string?) GetCreditCardInformation()
            {
                Console.Write("What is your credit card number: ");
                string CreditCard = "";
                while (!Validation.ValidateCreditCard(CreditCard))
                {
                    CreditCard = Console.ReadLine().Trim().Replace("\t", "");
                    if (CreditCard == "q" || CreditCard == "Q")
                        return (null, null, null);
                    if (!Validation.ValidateCreditCard(CreditCard))
                        Console.Write("Please enter a valid credit card. If your card is expired, enter Q to cancel: ");
                }
                Console.Write("What is your credit card expiration date (MM/yy): ");
                string CardExpiration = "";
                while (!Validation.ValidateExpirationDate(CardExpiration))
                {
                    CardExpiration = Console.ReadLine().Trim().Replace("\t", "");
                    if (CardExpiration == "q" || CardExpiration == "Q")
                        return (null, null, null);
                    if (!Validation.ValidateExpirationDate(CardExpiration))
                        Console.Write("Please enter a valid expiration date. If your card is expired, enter Q to cancel: ");
                }
                Console.Write("What is your credit card CCV: ");
                string CCV = "";
                while (!Validation.ValidateCCV(CCV))
                {
                    CCV = Console.ReadLine().Trim().Replace("\t", "");
                    if (CCV == "q" || CCV == "Q")
                        return (null, null, null);
                    if (!Validation.ValidateCCV(CCV))
                        Console.Write("Please enter a valid credit card CCV. If your card is expired, enter Q to cancel: ");
                }
                return (CreditCard, CardExpiration, CCV);
            }
            Console.Write("What is your first name: ");
            string FirstName = ""; 
            while (FirstName.Length == 0) 
            { 
                FirstName = Console.ReadLine(); 
                if (FirstName == "") 
                    Console.Write("What is your first name: "); 
            }
            Console.Write("What is your last name: ");
            string LastName = "";
            while (LastName.Length == 0)
            {
                LastName = Console.ReadLine();
                if (LastName == "")
                    Console.Write("What is your last name: ");
            }
            Console.Write("What is your email: ");
            string email = "";
            while (!Validation.ValidateEmail(email))
            {
                email = Console.ReadLine();
                if (!Validation.ValidateEmail(email))
                    Console.Write("Please enter a valid email: ");
            }
            Console.Write("Would you like to enter your credit card details? (Y/n): ");
            string? CreditCard = null;
            string? CardExpiration = null;
            string? CCV = null;
            if (Console.ReadLine().Equals("y") || Console.ReadLine().Equals("Y"))
                (CreditCard, CardExpiration, CCV) = GetCreditCardInformation();
            
        }
        Console.Write(
                "Welcome to the Ophelias Oasis Hotel Registration System!\n" +
                "Type help to get a full list of commands or enter a command.\n" +
                "Command: "
        );
        while (true)
        {
            
            string? input = Console.ReadLine();
            switch(input)
            {
                case "help": help(); break;
                case "reservation create": break;
                case "reservation update": break;
                case "reservation cancel": break;
                case "account create": CreateNewGuestPrompt(); break;
                case "account update": break;
                case "q": return;
                default: Console.WriteLine("Unknown command, enter help for more inforamtion."); break;
            }
            Console.Write("Command: ");
        }
    }
    private void AdminMode()
    {
        void help()
        {
            Console.WriteLine(
                "Report Commands:\n" +
                "\treservation create\n" +
                "\treservation update\n" +
                "\treservation cancel\n" +
                "Account Commands:" +
                "\taccount create\n" +
                "\taccount update\n" +
                "Enter Q to quit.\n"
            );
            return;
        }
    }
    static void Main()
    {
        
        if (!File.Exists("database.sqlite3") || new FileInfo("database.sqlite3").Length == 0)
        {
            SQLiteConnection.CreateFile("database.sqlite3");
            using (DatabaseManager Manager = new DatabaseManager())
            {
                Manager.InitializeTables();
                Manager.InitializeRoomsTable();
            }
        }

        bool run = true;
        while (run)
        {
            Console.Write(
                "Are you an employee or customer?\n" +
                "1. Employee\n" +
                "2. Customer/ Guest\n" +
                ": "
            );
            switch(Console.ReadLine().ToUpper())
            {
                case "1": break;
                case "2": GuestMode(); break;
                case "Q": run = false; break;
                default: Console.WriteLine("You must either specify 1 for Employee, 2 for Customer/ Guest, or Q to quit.\n\n"); break;
            }
        }
    }
}