using System;
using System.Collections.Generic;
using System.Windows.Forms;
using ServerExplorer.Code;
using ServerExplorer.Controls;

namespace ServerExplorer.UI
{
    public partial class FrmPrincipal : Form
    {
        #region Declarations

        private static FrmPrincipal _currentInstance;

        #endregion

        #region Creator

        public FrmPrincipal()
        {
            _currentInstance = this;
            InitializeComponent();
        }

        #endregion

        #region WindowList

        private List<Form> listChilds = new List<Form>();

        public static void AddForm(Form frm)
        {
            frm.MdiParent = _currentInstance;
            frm.WindowState = FormWindowState.Maximized;
            frm.Show();
            _currentInstance.listChilds.Add(frm);
            frm.FormClosed += _currentInstance.FrmPrincipal_OnChildClose;
            _currentInstance.RefreshWindowButtons();
        }

        protected void FrmPrincipal_OnChildClose(object sender, FormClosedEventArgs e)
        {
            listChilds.Remove((Form)sender);
            RefreshWindowButtons();
        }

        private void FrmPrincipal_MdiChildActivate(object sender, EventArgs e)
        {
            RefreshWindowButtons();
        }

        private void RefreshWindowButtons()
        {
            int childCount = listChilds.Count;
            int delta = childCount - flowpnlWindows.Controls.Count;
            if (delta < 0)
            {
                int dest = flowpnlWindows.Controls.Count + delta;
                for (int i = flowpnlWindows.Controls.Count - 1; i >= dest; i--)
                {
                    flowpnlWindows.Controls.RemoveAt(i);
                }
            }
            else if (delta > 0)
            {
                for (int i = 0; i < delta; i++)
                {
                    flowpnlWindows.Controls.Add(new WindowButton());
                }
            }
            for (int i = 0; i < childCount; i++)
            {
                WindowButton btn = (WindowButton)flowpnlWindows.Controls[i];
                Form frm = listChilds[i];
                btn.Text = frm.Text;
                btn.Window = frm;
                btn.Active = (frm == ActiveMdiChild);
            }
        }

        #endregion

        #region Menus

        private void menuConectarPRUEBAS_Click(object sender, EventArgs e)
        {
            // Crear ventana de la base de datos de pruebas
            var frm = new FrmBaseDatos("Data Source=SSSRV3;Initial Catalog=PRUEBAS;User ID=sa;Password=SLsssrv3");
            //frmBaseDatos frm = new frmBaseDatos("Data Source=DANTE;Initial Catalog=BD_AlfonsoRodriguez;Integrated Security=True");
            //frmBaseDatos frm = new frmBaseDatos("Data Source=OSKURITO;Initial Catalog=BD_AlfonsoRodriguez;Integrated Security=True");
            FrmPrincipal.AddForm(frm);
        }

        private void menuBuscarServidor_Click(object sender, EventArgs e)
        {
            // Mostrar ventana de buscador de servidores
            var frm = new FrmServidores();
            FrmPrincipal.AddForm(frm);
        }

        private void menuConectarA_Click(object sender, EventArgs e)
        {
            // Cargar configuracion
            var dialogo = new OpenFileDialog();
            if (dialogo.ShowDialog() != DialogResult.OK) return;

            Config config = Config.Cargar(dialogo.FileName);

            // Crear y mostrar ventana
            var frm = new FrmBaseDatos(config);
            FrmPrincipal.AddForm(frm);
        }

        #endregion
    }
}