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

namespace VEPROMS
{
	public partial class frmBatchRefreshCheckedOut : Form
	{
        public SessionInfo MySessionInfo { get; set; }
        public List<ProcedureInfo> CheckedOutProcedures { get; set; }
        private readonly int RType = -1;		// C2023-002: Flag type of checkout, docversion -1 or procedures 0
		public frmBatchRefreshCheckedOut(int type)
		{
			RType = type;
			InitializeComponent();
		}
		private void frmBatchRefreshCheckedOut_FormClosing(object sender, FormClosingEventArgs e)
		{
			Owner.Show();
			DialogResult = DialogResult.Cancel;
		}
		private void frmBatchRefreshCheckedOut_Load(object sender, EventArgs e)
		{
			Owner.Hide();
			// B2023-051 check for a null list container and an empty list
			if (CheckedOutProcedures != null && CheckedOutProcedures.Count > 0)
			{
				foreach (ProcedureInfo pi in CheckedOutProcedures)
					AddToDisplayList(pi);
				tmrCheck.Enabled = true;
			}
		}
		private void AddToDisplayList(ProcedureInfo pi)
		{
            Panel p = new Panel
            {
                BorderStyle = BorderStyle.FixedSingle,
                Dock = DockStyle.Top,
                Height = 28
            };
            if (RType != 1)     // C2023-002: only put out ForceCheckin & sendemail buttons if on procedures (can't check in a docversion)
			{
                Button b = new Button
                {
                    Dock = DockStyle.Right,
                    Text = "Force Check In",
                    Tag = pi
                };
                b.Click += new EventHandler(ForceCheckIn_Click);
				p.Controls.Add(b);
                b = new Button
                {
                    //b.FlatStyle = FlatStyle.Popup;
                    Dock = DockStyle.Right,
                    Text = "Send Email",
                    Tag = pi
                };
                b.Click += new EventHandler(SendEmail_Click);
				p.Controls.Add(b);
			}
            Label l = new Label
            {
                Dock = DockStyle.Fill,
                TextAlign = ContentAlignment.MiddleLeft,
                Text = $"Procedure {pi.DisplayNumber} is checked out to {UserInfo.GetByUserID(OwnerInfo.GetByItemID(pi.ItemID, CheckOutType.Procedure).SessionUserID).UserID}"
            };
            p.Controls.Add(l);
			pnlList.Controls.Add(p);
			p.BringToFront();
			pnlList.Focus();
		}

		void SendEmail_Click(object sender, EventArgs e)
		{
			ProcedureInfo pi = (sender as Button).Tag as ProcedureInfo;
			OwnerInfo oi = OwnerInfo.GetByItemID(pi.ItemID, CheckOutType.Procedure);
			UserInfo ui = UserInfo.GetByUserID(oi.SessionUserID);
			UserConfig uc = new UserConfig(ui.Config);
			string subject = "Please Check In A Procedure";
			if (uc.User_UserEmail != string.Empty)
			{
				if (!SendOutlookEmail(uc.User_UserEmail, subject, BuildEmailMessageBody(pi)))
					(sender as Button).Enabled = false;
			}
			else
				MessageBox.Show("No email has been defined for this user.  You will need to Force Check In this procedure", "No Email");
		}

		private string BuildEmailMessageBody(ProcedureInfo pi)
		{
			StringBuilder body = new StringBuilder();
			body.AppendLine($"The administrator needs you to check in procedure {pi.DisplayNumber} so the administrator can continue an administrative tool process");
			return body.ToString();
		}
		void ForceCheckIn_Click(object sender, EventArgs e)
		{
			ProcedureInfo pi = (sender as Button).Tag as ProcedureInfo;
			OwnerInfo oi = OwnerInfo.GetByItemID(pi.ItemID, CheckOutType.Procedure);
			UserInfo ui = UserInfo.GetByUserID(oi.SessionUserID);
			UserConfig uc = new UserConfig(ui.Config);
			MySessionInfo.CheckInItem(oi.OwnerID);
			pnlList.Controls.Remove((sender as Button).Parent as Panel);
			if (uc.User_UserEmail != string.Empty)
			{
				string subject = "A Procedure Was Forced Checked In";
				SendOutlookEmail(uc.User_UserEmail, subject, BuildForcedMessageBody(pi));
			}
			else
				MessageBox.Show("No email has been defined for this user.  The procedure will be Force Checked In, but the user will not be notified.", "No Email");
		}

		private string BuildForcedMessageBody(ProcedureInfo pi)
		{
			StringBuilder body = new StringBuilder();
			body.AppendLine($"The administrator needed to force check in procedure {pi.DisplayNumber} so the administrator could continue an administrative tool process");
			return body.ToString();
		}
		private bool SendOutlookEmail(string email, string subject, string body)
		{
			try
			{
				LBApplicationClass app = new LBApplicationClass();
				LBMailItemClass msg = app.CreateMailItem();
				msg.To = email;
				msg.Subject = subject;
				msg.BodyFormat = LBOlBodyFormat.olFormatPlain;
				msg.Body = body;
				msg.Send();
				return true;
			}
			catch (Exception ex)
			{
				if (ex.Message.ToLower().Contains("failed due to the following error: 80080005"))
					MessageBox.Show("You cannot send email via a running instance of Outlook from VE PROMS running from within Visual Studio.");
				else
					MessageBox.Show($"{ex.GetType().Name} - {ex.Message}");
				return false;
			}
		}

		private void tmrCheck_Tick(object sender, EventArgs e)
		{
			tmrCheck.Enabled = false;
			string msg = string.Empty;
			pnlList.Controls.Clear();
			List<ProcedureInfo> tmp = new List<ProcedureInfo>();
			foreach(ProcedureInfo pi in CheckedOutProcedures)
				if (!MySessionInfo.CanCheckOutItem(pi.ItemID, CheckOutType.Procedure, ref msg))
					tmp.Add(pi);
			CheckedOutProcedures = tmp;
			if (CheckedOutProcedures.Count == 0)
			{
				Close();
				return;
			}
			foreach (ProcedureInfo pi in CheckedOutProcedures)
				AddToDisplayList(pi);
			tmrCheck.Enabled = true;
		}
	}
}