/*
 * Erstellt mit SharpDevelop.
 * Benutzer: 001142709
 * Datum: 05.04.2018
 * Zeit: 10:40
 * 
 * Sie können diese Vorlage unter Extras > Optionen > Codeerstellung > Standardheader ändern.
 */
using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Text;
using System.Windows.Forms;

namespace NxLizenz
{
	/// <summary>
	/// Description of MainForm.
	/// </summary>
	public partial class MainForm : Form
	{
		#region Version und Copyright
		// Version und Copyright
		string programName = Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase); //Den Programmnamen auslesen
		string version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
		static object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyCopyrightAttribute), false);
		string copyright = ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
		string icon = Application.StartupPath + "\\Info.bmp";
		//Assembly Datum und Zeit
		static DateTime value = AssemblyDateTime();
		string date = value.ToShortDateString();
		string time = value.ToLongTimeString();
		private static DateTime AssemblyDateTime()
		{
			var version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
			var buildDateTime = new DateTime(2000, 1, 1).Add(new TimeSpan( TimeSpan.TicksPerDay * version.Build + TimeSpan.TicksPerSecond * 2 * version.Revision));
			//Tage seit dem 1. Januar 2000 und Sekunden seit Mitternacht, (multiplizier mit 2 ergibt das Original)
			return buildDateTime;
		}
		#endregion
		
		public MainForm()
		{
			//
			// The InitializeComponent() call is required for Windows Forms designer support.
			//
			InitializeComponent();
			
			//
			// TODO: Add constructor code after the InitializeComponent() call.
			//
		}
		
		string licenseName = "";
		int licensesTotal = 0;
		int licensesInUse = 0;
		string licenseVersion = "";
		string licenseVendor = "";
		string licenseType = "";
		List<User> tUsers = new List<User>();
		
		private string LicenseServer { set; get; }

		private LicensesList licenseList = new LicensesList();
//		private Users users = new Users();
		private UserList userList = new UserList();
		
		void ComboBoxSelectLicenseServerSelectedIndexChanged(object sender, EventArgs e)
		{
			LicenseServer = comboBoxSelectLicenseServer.SelectedItem.ToString();
		}
		
		void ButtonEvaluateClick(object sender, EventArgs e)
		{
			if (!String.IsNullOrEmpty(LicenseServer))
			{
				Start(sender, e);
			}
		}

		private void Start(object sender, EventArgs e)
		{
			//TODO: Lizenzen lesen
			string fileName = @"H:\Programmieren\SharpDevelop\NxLizenz\Daten\149_UGS_LICENSE_FILE.txt";

			//TODO: Lizenzliste füllen
			if (licenseList.AllLicenses.Count == 0)
			{
				ReadLicenseFile(fileName);
			}

			DrawDisplay(licenseList.AllLicenses.Count, sender, e);
		}
		
		private void ReadLicenseFile(string fileName)
		{
			using (var sr = new StreamReader(fileName, Encoding.Default))
			{
				bool read = false;
				bool secondLine = false;
				bool nextLine = false;
				int emptyLine = 0;
				string line = "";
				int count = -1;
				
				//Datei zeilenweise einlesen bis das Ende der Datei erreicht ist
				while (!sr.EndOfStream)
				{
					line = sr.ReadLine(); //Zeile einlesen
					
					if (read)
					{
						if (line.StartsWith("Users of "))
						{
							count ++;
							Users users = new Users();
							
							if (emptyLine == 1)
							{
								//User einlesen
								ExtractUser("", count - 1);
								
								//Wenn ein neuer Block beginnt, dann die ermittelten Werte schreiben
								WriteLicenceValueBlock(count - 1);
								
								emptyLine = 0;
							}
							
							if (emptyLine == 3)
							{
								//Wenn ein neuer Block beginnt, dann die ermittelten Werte schreiben
								WriteLicenceValueBlock(count - 1);
								
								emptyLine = 0;
							}
							
							//LicenseName, LicenseTotal und LicenseUsed extrahieren
							var license = new License();
							
							ExtractLicenses(line, count);
						}
						
						if (String.IsNullOrEmpty(line))
						{
							emptyLine ++;
						}
						
						if (secondLine)
						{
							secondLine = false; //Wieder zurücksetzen
							
							//Den Lizentyp aus der Zeile extrahieren
							licenseType = line.Remove(0, 2);
							licenseType = licenseType.Remove(line.LastIndexOf(" ") - 2);
						}
						
						if (line.StartsWith("  \""))
						{
							//Setzen damit auch die nächste Zeile in den Block mit aufgenommen wird
							secondLine = true;
							
							//Lizenzversion und Lizenztyp extrahieren
							licenseVersion = line.Remove(line.IndexOf(",")).Remove(0, line.IndexOf("v") + 1);
							licenseVendor = line.Remove(0, line.IndexOf(":") + 1);
						}
						
						if (emptyLine == 2 & !String.IsNullOrEmpty(line))
						{
							//User einlesen
							ExtractUser(line, count);
						}
					}
					
					if (nextLine)
					{
						read = true; //Ab jetzt wird ausgewertet
						nextLine = false; //Zurücksetzen, damit die Abfrage nicht mehr durchlaufen wird
					}
					
					if (line.Contains("Feature usage info:"))
					{
						nextLine = true; //Die nächste Zeile darf nicht berücksichtigt werden, aber dann wird ausgewertet
					}
				}
				
				//Die Werte des letzten Blocks schreiben
				WriteLicenceValueBlock(count);
			}
		}
		
		private void ExtractLicenses(string line, int count)
		{
			string lic = "";
			string inUse = "";
			string total = "";
			
			lic = line.Remove(line.IndexOf(":")).Replace("Users of ", "");
			line = line.Remove(0, line.IndexOf("Total of ") + 9);
			if (line.Contains(" licenses in use)"))
			{
				line = line.Replace(" licenses in use)", "");
			}
			else
			{
				line = line.Replace(" license in use)", "");
			}
			inUse = line.Remove(0, line.LastIndexOf(" ") + 1);
			total = line.Remove(line.IndexOf(" "));
			
			//Bis zum schreiben zwischenspeichern
			licenseName = lic;
			licensesTotal = Convert.ToInt32(total);
			licensesInUse = Convert.ToInt32(inUse);
		}
		
		private void ExtractUser(string line, int count)
		{
			string idNumber = "";
			string firstName = "";
			string sureName = "";
			string temp = "";
			string computerName = "";
			
			User user = new User();
			
			if (String.IsNullOrEmpty(line))
			{
				user.FirstName = "";
				user.SurName = "";
				user.IdNumber = "";
				user.ComputerName = "";
			}
			else
			{
				if (line.Contains("TcServer"))
				{
					temp = line.Replace("    ", "");
					idNumber = temp.Remove(temp.IndexOf(" Tc"));
					temp = temp.Remove(0, temp.IndexOf(" ") + 1);
					computerName = temp.Remove(temp.IndexOf(" "));
					temp = temp.Remove(0, temp.IndexOf(" Tc") + 9);
					temp = temp.Remove(temp.IndexOf(" ("));
					if (temp.Contains("_"))
					{
						firstName = temp.Remove(0, temp.IndexOf("_") + 1);
						sureName = temp.Remove(temp.IndexOf("_"));
					}
					else
					{
						firstName = "";
						sureName = temp;
					}
				}
				else
				{
					temp = line.Replace("    ", "");
					idNumber = temp.Remove(temp.IndexOf(" "));
					temp = temp.Remove(0, temp.IndexOf(" ") + 1);
					computerName = temp.Remove(temp.IndexOf(" "));
					temp = ExtractRealUserName(idNumber);
					firstName = temp.Remove(0, temp.IndexOf(" ") + 1);
					sureName = temp.Remove(temp.IndexOf(" "));
				}
				
				
				user.FirstName = firstName;
				user.SurName = sureName;
				user.IdNumber = idNumber;
				user.ComputerName = computerName;
			}
			
			tUsers.Add(user);
		}
		
		private string ExtractRealUserName(string idNumber)
		{
			string username = "";
			
			//TODO: Auswerten
			username = "no Name"; //TODO: Nur zum Testen. Mauss dann wieder entfernt werden
			
			return username;
		}
		
		private void WriteLicenceValueBlock(int count)
		{
			var license = new License();
			license.LicenseName = licenseName;
			license.LicensesTotal = licensesTotal;
			license.LicensesInUse = licensesInUse;
			license.LicenseVersion = licenseVersion;
			license.LicenseVendor = licenseVendor;
			license.LicenseType = licenseType;

			licenseList.Add(license);
			
			Users users = new Users();
			for (int i = 0; i < tUsers.Count; i++)
			{
				users.Add(tUsers[i]);
			}
			tUsers.Clear();
			userList.Add(users);
			
			
			//Den ersten Eintrag aus der Liste löschen
			if (count == 0)
			{
				licenseList.AllLicenses.RemoveAt(0);
				userList.AllUsers.RemoveAt(0);
			}
		}
		
		private void DrawDisplay(int countLicenses, object sender, EventArgs e)
		{
			int width = 860;
			int hight = 72 + 90 * countLicenses;
			
			this.ClientSize = new System.Drawing.Size(width, hight);
			
			for (int i = 0; i < countLicenses; i++)
			{
				AddControl_Click(sender, e, i);
			}
		}
		
		private void AddControl_Click(object sender, EventArgs e, int i)
		{
			const int xPos = 12;
			const int yPos = 70;
			
			var lic = new LicenseItem();
			lic.Name = string.Format("LicItem[{0}]", i);
			lic.Location = new Point((xPos), yPos + 90 * i);
			lic.Size = new Size (618, 80);
			lic.LicName = licenseList.AllLicenses[i].LicenseName;
			lic.Available = licenseList.AllLicenses[i].LicensesTotal;
			lic.InUse = licenseList.AllLicenses[i].LicensesInUse;
			lic.Version = licenseList.AllLicenses[i].LicenseVersion;
			lic.Vendor = licenseList.AllLicenses[i].LicenseVendor;
			lic.Type = licenseList.AllLicenses[i].LicenseType;
			lic.MouseClick += new MouseEventHandler(this.LicenseItemClick);
			lic.Refresh();
			this.Controls.Add(lic);

			lic.ShowCurrentValues();
		}

		private void LicenseItemClick(object sender, EventArgs e)
		{
			// enter code here.
			LicenseItem lic = (LicenseItem)sender;
//			MessageBox.Show(lic.Name + " was clicked");
			int index = Convert.ToInt32(lic.Name.Remove(0, lic.Name.IndexOf("[") + 1).Replace("]",""));
//			MessageBox.Show(CreateUserList(index));
			
			Users users = userList.AllUsers[index];
			UserView uv = new UserView(users);
			uv.ShowDialog();
		}
		
		private string CreateUserList(int index)
		{
			string userL = "";
			
			Users users = userList.AllUsers[index];
			
			for (int i = 0; i < users.AllUsers.Count; i++)
			{
				if (users.AllUsers[i].FirstName == "")
				{
					userL = "There is no license in use.";
				}
				else
				{
					userL += String.Concat("Name: ", users.AllUsers[i].FirstName, " ", users.AllUsers[i].SurName, "     User Id: ", users.AllUsers[i].IdNumber, "     Computername: ", users.AllUsers[i].ComputerName, "\n");
				}
			}
			
			return userL;
		}
	}
}