using System;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.Entities;
using Tanshu.Accounts.Entities.Auth;
using Tanshu.Accounts.Helpers;
using Tanshu.Accounts.Management;
using Tanshu.Accounts.PointOfSale.Sales;
using Tanshu.Accounts.Repository;
using Tanshu.Common;
using Tanshu.Common.KeyboardControl;
using NHibernate.Tool.hbm2ddl;

namespace Tanshu.Accounts.PointOfSale
{
    public enum LoginType
    {
        Keyboard,
        Msr
    }
    public partial class MainForm : Form
    {
        public MainForm()
        {
            //using (var frm = new SplashForm())
            //    frm.ShowDialog();

            SessionManager.Initialize();
            //new SchemaExport(SessionManager.Configuration).Create(false, true);
            InitializeComponent();
        }

        private User form_userEvent(object sender, UserEventArgs e)
        {
            var user = e.User;

            if (user == null)
                using (var form = new UserForm(null))
                    form.ShowDialog();
            else
                using (var form = new UserForm(user.UserID))
                    form.ShowDialog();

            e.Handled = true;
            return new User();
        }

        private void btnLogin_Click(object sender, EventArgs e)
        {
            LoginUser(LoginType.Keyboard);
        }

        private void btnSale_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.SALES))
                using (var frmSale = new SalesForm(new BillController(null, true)))
                    frmSale.ShowDialog();
        }

        private void btnProduct_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.PRODUCTS))
                using (var frm = new ProductListForm())
                    frm.ShowDialog();
        }

        private void btnProductGroup_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.PRODUCTS))
                using (var frm = new ProductGroupListForm())
                    frm.ShowDialog();
        }

        private void btnCustomer_Click(object sender, EventArgs e)
        {
            using (var frm = new CustomersForm(null, ""))
                frm.ShowDialog();
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void btnCreateUser_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.SECURITY_MANAGE_ROLES))
                using (var bi = new UserBI())
                {
                    using (var form = new SelectUser(bi.GetFilteredUsers, true))
                    {
                        form.UserEvent += form_userEvent;
                        form.ShowDialog();
                    }
                }
        }

        private void btnUserRoles_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.SECURITY_MANAGE_ROLES))
                using (var frm = new AssignUserGroups())
                    frm.ShowDialog();
        }

        private void btnChangePassword_Click(object sender, EventArgs e)
        {
            using (var frm = new ChangePassword(new KeyboardControl()))
                frm.ShowDialog();
        }

        private void btnCashierCheckout_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.CASHIER_CHECKOUT))
                using (var frm = new CashierCheckoutForm())
                    frm.ShowDialog();
        }

        private void btnSaleAnalysis_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.SALE_ANALYSIS))
                using (var frm = new frmSaleAnalysisForm())
                    frm.ShowDialog();
        }

        private void btnSaleDetail_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.SALE_DETAIL))
                using (var frm = new FrmSaleDetail())
                    frm.ShowDialog();
        }

        private void MainForm_Load(object sender, EventArgs e)
        {
#if (DEBUG)
            MessageBox.Show("This software does not print kots!!!","Debug Mode", MessageBoxButtons.OK , MessageBoxIcon.Exclamation);
#endif
            CheckRoles();
        }

        private void CheckRoles()
        {
            btnSale.Visible = Session.IsAllowed(RoleConstants.SALES);

            btnProduct.Visible = Session.IsAllowed(RoleConstants.PRODUCTS);
            btnProductGroup.Visible = Session.IsAllowed(RoleConstants.PRODUCTS);

            btnOpenBill.Visible = Session.IsAllowed(RoleConstants.OPEN_BILL);

            btnCustomer.Visible = Session.IsAllowed(RoleConstants.CUSTOMERS);

            btnCreateUser.Visible = Session.IsAllowed(RoleConstants.SECURITY_MANAGE_USERS);
            btnUserRoles.Visible = Session.IsAllowed(RoleConstants.SECURITY_MANAGE_USERS);

            btnGroupRoles.Visible = Session.IsAllowed(RoleConstants.SECURITY_MANAGE_ROLES);

            btnCashierCheckout.Visible = Session.IsAllowed(RoleConstants.CASHIER_CHECKOUT);
            btnSaleAnalysis.Visible = Session.IsAllowed(RoleConstants.SALE_ANALYSIS);
            btnSaleDetail.Visible = Session.IsAllowed(RoleConstants.SALE_DETAIL);

            btnBillDetails.Visible = Session.IsAllowed(RoleConstants.BILL_DETAILS);
            btnVoidOrReprints.Visible = Session.IsAllowed(RoleConstants.VOID_OR_REPRINTED_BILL_REPORT);
            btnDiscountReport.Visible = Session.IsAllowed(RoleConstants.VOID_OR_REPRINTED_BILL_REPORT);

            btnChangePassword.Visible = Session.IsAuthenticated;
#if (DEBUG)
            btnManagement.Visible = true;
#else
            btnManagement.Visible = false;
#endif
        }

        private void btnGroupRoles_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.SECURITY_MANAGE_ROLES))
                using (var frm = new AssignGroupRoles())
                    frm.ShowDialog();
        }

        private void btnSwipeLogin_Click(object sender, EventArgs e)
        {
            LoginUser(LoginType.Msr);
        }

        private void LoginUser(LoginType loginType)
        {
            ILogin login;
            switch (loginType)
            {
                case LoginType.Keyboard:
                    login = new KeyboardLogin();
                    break;
                case LoginType.Msr:
                    login = new MsrLogin();
                    break;
                default:
                    return;
            }

            if (!Session.IsAuthenticated)
            {
                if (login.LoginUser())
                {
                    Text = "Main Menu - User: " + Session.User.Name;
                    btnLogin.Text = "Logout";
                    btnSwipeLogin.Visible = false;
                }
            }
            else
            {
                login.LogoutUser();
                Text = "Main Menu - Login";
                btnLogin.Text = "Login";
                btnSwipeLogin.Visible = true;
            }
            CheckRoles();
        }

        private void btnOpenBill_Click(object sender, EventArgs e)
        {
            if (!Session.IsAllowed(RoleConstants.OPEN_BILL))
                return;
            var result = InputBox.Show("Bill Number", "0", InputBox_Validating);
            if (!result.OK)
                return;
            Voucher voucher;
            using (var bi = new VoucherBI())
                voucher = bi.Get(x => x.BillID == result.Text);
            if (Session.IsAllowed(RoleConstants.SALES))
                using (var frmSale = new SalesForm(new BillController(voucher.VoucherID, true)))
                    frmSale.ShowDialog();
        }

        private static void InputBox_Validating(object sender, InputBoxValidatingArgs e)
        {
            if (Regex.IsMatch(e.Text, @"^\d+-\d\d\d\d")) return;
            e.Cancel = true;
            e.Message = "Bill No should be in format ##-####";
        }

        private void btnBillDetails_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.BILL_DETAILS))
                using (var frm = new BillDetailsForm())
                    frm.ShowDialog();
        }

        private void btnVoidOrReprints_Click(object sender, EventArgs e)
        {
            if (Session.IsAllowed(RoleConstants.VOID_OR_REPRINTED_BILL_REPORT))
                using (var frm = new VoidReprintedForm())
                    frm.ShowDialog();
        }

        private void btnDiscountReport_Click(object sender, EventArgs e)
        {
            using (var frm = new DiscountReportForm())
                frm.ShowDialog();

        }

        private void btnManagement_Click(object sender, EventArgs e)
        {
            using (var frm = new ManagementForm())
                frm.ShowDialog();
        }
    }
}