///
/// Copyright (c) 2017 Sensus Metering Systems
///
using System;
using System.Drawing;
using System.Windows.Forms;
using log4net;
using TBF.Resources;

namespace TBF.Rig.Elde.CoverTest
{
	public partial class CoverTestForm : Form
	{
        ILog bypassLog;
        string message;

		/// Set to 'true' when the form closes
		public bool Completed { get { return completed; } }
		bool completed;

        Common.GID[] bypassLevel;

        public CoverTestForm(string message, Common.GID[] bypassLevel, ILog bypassLog)
		{
			InitializeComponent();
            ControlBox = false;

            this.message = message;
            this.bypassLevel = bypassLevel;
            this.bypassLog = bypassLog;

			Localize();
            messageLabel.Text = this.message;

			float textWidth = Graphics.FromImage(new Bitmap(1, 1)).MeasureString(messageLabel.Text, messageLabel.Font).Width;
			int rqrdFormWidth = (int)textWidth + 80;	/// Form width calculated from the text width

			if (rqrdFormWidth > Width)
			{
				int shift = (rqrdFormWidth - Width) / 2;
				Width = rqrdFormWidth;
				bypassButton.Left += shift;
			}

			completed = false;
			StartForceCloseHandler();
		}

		void Localize()
		{
			Text = Strings.Message;
			bypassButton.Text = Strings.Bypass;
		}

		private void bypassButton_Click(object sender, EventArgs e)
		{
            if (!Users.CurrentUser.IsMemberOf(bypassLevel))
			{
                if ((new Users.Forms.LoginDlg(bypassLevel, this)).ShowDialog() != DialogResult.OK)
                {
                    return;
                }

                Program.MainWnd.UpdateUser();
			}

            bypassLog.InfoFormat("{0} bypassed by {1}", message, Users.CurrentUser.UserName());

			completed = true;
			Close();
		}

		#region Forced close handling

        /// <summary>
        /// Used by CoverTest, AskYesNoOp and MessageBoxOp.
        /// </summary>
        public void OnCloseThisForm(object sender, EventArgs args)
        {
            if (CloseThisFormHandler == null) return;
            try
            {
                CloseThisFormHandler(sender, null);
            }
            catch (Exception e)
            {
            }
        }

        public event EventHandler<EventArgs> CloseThisFormHandler;

		public void StartForceCloseHandler()
		{
            CloseThisFormHandler += delegate(object sender, EventArgs args)
			{
				if (InvokeRequired)
                    Invoke(new EventHandler<EventArgs>(OnForceClose), sender, args);
				else
                    OnForceClose(sender, args);
			};
		}

		private void OnForceClose(object sender, EventArgs args)
		{
			DialogResult = DialogResult.Cancel;
			Close();
		}

		#endregion

        private void CoverTestForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (Users.CurrentUser.Restore(this)) Program.MainWnd.UpdateUser();
        }
	}
}