using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using VEPROMS.CSLA.Library;

namespace WinApp
{
	public partial class frmRoles : Form
	{
		Role _role;
		private PermLookup _pl=new PermLookup();
		public frmRoles()
		{
			InitializeComponent();
			roleInfoListBindingSource.DataSource = RoleInfoList.Get();
			permADLookupBindingSource.DataSource = _pl.PermADLookup;
			SetupDetail();
			SetupButtons();
		}
		private DialogResult SaveAsNeeded()
		{
			if (_role != null && _role.IsSavable)
			{
				DialogResult dr = MessageBox.Show("Do you want to save changes", "Save Changes", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
				if (dr == DialogResult.Yes) Save();
				if (dr == DialogResult.No) Cancel();
				// TODO: Need a Cancel
				return dr;
			}
			return DialogResult.Yes;
		}
		private void SetupDetail()
		{
			if (lbRoles.SelectedValue != null)
			{
				int rid = (int)lbRoles.SelectedValue;
				if (_role == null || _role.RID != rid)
				{
					if (SaveAsNeeded() != DialogResult.Cancel)
					{
						_role = Role.Get(rid);
						roleBindingSource.DataSource = _role;
						roleAssignmentsBindingSource.DataSource = _role.RoleAssignments;
						rolePermissionsBindingSource.DataSource = _role.RolePermissions;
					}
				}
			}
		}
		private void lbRole_SelectedValueChanged(object sender, EventArgs e)
		{
			SetupDetail();
		}
		private void SetupButtons()
		{
			if (_role != null)
			{
				btnSave.Enabled = _role.IsSavable;
				btnCancel.Enabled = _role.IsDirty;
				btnNew.Enabled = _role.IsValid;
			}
			else
			{
				btnSave.Enabled = false;
				btnCancel.Enabled = false;
				btnNew.Enabled = true;
			}
		}
		private void CurrentItemChanged(object sender, EventArgs e)
		{
			SetupButtons();
		}
		private void btnCancel_Click(object sender, EventArgs e)
		{
			Cancel();
		}
		private void btnSave_Click(object sender, EventArgs e)
		{
			Save();
		}
		private void btnNew_Click(object sender, EventArgs e)
		{
			New();
		}
		private void Cancel()
		{
			_role.CancelEdit();
			_role.BeginEdit();
		}
		private void Save()
		{
			roleBindingSource.RaiseListChangedEvents = false;
			roleAssignmentsBindingSource.RaiseListChangedEvents = false;
			rolePermissionsBindingSource.RaiseListChangedEvents = false;
			roleBindingSource.EndEdit();
			roleAssignmentsBindingSource.EndEdit();
			rolePermissionsBindingSource.EndEdit();
			try
			{
				Role temp = _role.Clone();
				_role = temp.Save();
				_role.BeginEdit();
				roleBindingSource.DataSource = null;
				roleAssignmentsBindingSource.DataSource = null;
				rolePermissionsBindingSource.DataSource = null;
				int rid = _role.RID;
				roleInfoListBindingSource.DataSource = RoleInfoList.Get();
				if (lbRoles.SelectedIndex == -1)
					lbRoles.SelectedValue = rid;
				roleBindingSource.DataSource = _role;
				roleAssignmentsBindingSource.DataSource = _role.RoleAssignments;
				rolePermissionsBindingSource.DataSource = _role.RolePermissions;
			}
			catch (Csla.DataPortalException ex)
			{
				MessageBox.Show(ex.BusinessException.ToString(),
				"Error saving", MessageBoxButtons.OK,
				MessageBoxIcon.Exclamation);
			}
			catch (Exception ex)
			{
				MessageBox.Show(ex.ToString(), "Error saving",
				MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
			}
			finally
			{
				roleBindingSource.RaiseListChangedEvents = true;
				roleAssignmentsBindingSource.RaiseListChangedEvents = true;
				rolePermissionsBindingSource.RaiseListChangedEvents = true;
				roleBindingSource.ResetBindings(false);
				roleAssignmentsBindingSource.ResetBindings(false);
				rolePermissionsBindingSource.ResetBindings(false);
			}
			SetupButtons();
		}
		public void New()
		{
			if (SaveAsNeeded() != DialogResult.Cancel)
			{
				_role = Role.New();
				roleBindingSource.DataSource = _role;
				roleAssignmentsBindingSource.DataSource = _role.RoleAssignments;
				rolePermissionsBindingSource.DataSource = _role.RolePermissions;
			}
		}

		private void BeforeFormClosing(object sender, FormClosingEventArgs e)
		{
			e.Cancel = (SaveAsNeeded() == DialogResult.Cancel);
		}

		private void btnNewPermission_Click(object sender, EventArgs e)
		{
			_role.RolePermissions.Add(RolePermission.New());
		}

		private void frmRoles_Load(object sender, EventArgs e)
		{

		}
		//private void btnNewGA_Click(object sender, EventArgs e)
		//{
		//  using (frmUserSelect f = new frmUserSelect())
		//  {
		//    f.ShowDialog();
		//    if (f.DialogResult == DialogResult.OK)
		//    {
		//      _group.GroupMemberships.Add(f.UID);
		//      SetupButtons();
		//    }
		//  }
		//}
		//private void btnRemoveGA_Click(object sender, EventArgs e)
		//{
		//  if (this.groupMembershipsDataGridView.SelectedRows.Count > 0)
		//  {
		//    int uid = int.Parse(
		//      this.groupMembershipsDataGridView.SelectedRows[0].Cells[0].Value.ToString());
		//    _group.GroupMemberships.Remove(uid);
		//  }
		//}

		//private void btnRemoveAssign_Click(object sender, EventArgs e)
		//{
		//  if (this.groupPermissionsDataGridView.SelectedRows.Count > 0)
		//  {
		//    int folderid = int.Parse(
		//      this.groupMembershipsDataGridView.SelectedRows[1].Cells[0].Value.ToString());
		//    int rid = int.Parse(
		//      this.groupMembershipsDataGridView.SelectedRows[2].Cells[0].Value.ToString());
		//    _group.GroupAssignments.Remove(folderid, rid);
		//  }

		//}

		//private void btnNewAssign_Click(object sender, EventArgs e)
		//{
		//  using (frmAssignmentSelect f = new frmAssignmentSelect(_group))
		//  {
		//    f.ShowDialog();
		//    if (f.DialogResult == DialogResult.OK)
		//    {
		//      //TODO: Do I need to refresh Assignments?
		//    }
		//  }
		//}
	}
}