/// <summary>
/// Initializes a new instance of the <see cref="ReserveRailForm"/> class.
/// </summary>
/// <param name="tramDepotManagementSystem">Contains an instance of the TramDepotManagementSystem class</param>
/// <param name="rail">Contains an instance of the Rail class</param>
public ReserveRailForm(TramDepotManagementSystem tramDepotManagementSystem, Rail rail)
{
this.InitializeComponent();
this.tramDepotManagementSystem = tramDepotManagementSystem;
this.rail = rail;
this.rtbxRail.Text = rail.Number.ToString();
}
/// <summary>
/// Initializes a new instance of the <see cref="BlockRailForm"/> class.
/// </summary>
/// <param name="tramDepotManagementSystem">Contains an instance from the TramDepotManagementSystem class.</param>
/// <param name="rail">Contains an instance from the Rail class.</param>
public BlockRailForm(TramDepotManagementSystem tramDepotManagementSystem, Rail rail)
{
this.InitializeComponent();
this.tramDepotManagementSystem = tramDepotManagementSystem;
this.rail = rail;
this.rtbxRail.Text = rail.Number.ToString();
// If all sectors are blocked
if (this.rail.Sectors.Count(s => s.IsBlocked) == this.rail.Sectors.Count)
{
this.BackColor = Color.Red;
}
}
/// <summary>
/// Loads the Rail data in the form.
/// </summary>
/// <param name="closeConnection">closes the connection after the method is done.</param>
private void LoadRailData(bool closeConnection = true)
{
this.Rails.Clear();
List<Line> lines = new List<Line>();
DataTable data = DatabaseManager.GetTramDepotData(LoggedInAccount.AccountLoggedIn.Depot, closeConnection);
foreach (DataRow row in data.Rows)
{
int railID = Convert.ToInt32(row["SPID"]);
Rail rail = this.Rails.Find(r => r.ID == railID);
if (rail == null)
{
int railNumber = Convert.ToInt32(row["SPNUMMER"]);
RailType railType;
if (!Enum.TryParse(row["SPTYPE"].ToString(), out railType))
{
throw new ArgumentException("Rail type could not be parsed as a type");
}
// Line
int lineID;
Line line = null;
if (row["LID"] != System.DBNull.Value)
{
lineID = Convert.ToInt32(row["LID"]);
line = lines.Find(l => l.ID == lineID);
if (line == null)
{
string lineNumber = row["LNUMMER"].ToString();
System.Drawing.Color lineColor = System.Drawing.ColorTranslator.FromHtml(row["LKLEUR"].ToString());
line = new Line(lineID, lineNumber, lineColor);
}
}
rail = new Rail(railID, railNumber, railType, line);
}
// Sector
int sectorID = Convert.ToInt32(row["SEID"].ToString());
int sectorNumber = Convert.ToInt32(row["SENUMMER"].ToString());
int sectorBlockedNumber = Convert.ToInt32(row["SEGEBLOKKEERD"].ToString());
bool isBlocked = sectorBlockedNumber == 1;
int tramID;
Tram tram = null;
Sector sector = new Sector(sectorID, sectorNumber, isBlocked, rail, tram);
if (row["WID"] != System.DBNull.Value)
{
tramID = Convert.ToInt32(row["WID"].ToString());
tram = this.Trams.Find(t => t.ID == tramID);
sector.Tram = tram;
tram.Sector = sector;
}
rail.AddSector(sector);
this.Rails.Add(rail);
}
}
/// <summary>
/// Toggles whether the given rail is blocked or not.
/// If one of the sectors that is to be blocked contains a tram, the rail will not be blocked.
/// </summary>
/// <param name="rail">The rail that is to be (de)blocked.</param>
/// <returns>A boolean indicating if one of the sectors to block contains a tram.</returns>
public bool ToggleRailIsBlocked(Rail rail)
{
bool newIsBlocked;
if (rail.Sectors.Count(s => s.IsBlocked) == rail.Sectors.Count)
{
newIsBlocked = false;
}
else
{
newIsBlocked = true;
}
if ((newIsBlocked && rail.Sectors.Find(s => s.Tram != null) == null) || !newIsBlocked)
{
DatabaseManager.ChangeRailIsBlocked(rail, newIsBlocked);
foreach (Sector sector in rail.Sectors)
{
sector.IsBlocked = newIsBlocked;
}
return true;
}
else
{
return false;
}
}
/// <summary>
/// Gets the first available sector of a rail. If no sector was found, return null.
/// </summary>
/// <param name="rail">The rail at which a sector must be found.</param>
/// <returns>The first available sector of the rail, if no sector was available, return null.</returns>
public Sector GetFirstAvailableSectorOfRail(Rail rail)
{
List<Sector> occupiedSectors = rail.Sectors.Where(s => s.Tram != null || s.IsBlocked).ToList();
Sector lastOccupiedSector = occupiedSectors[occupiedSectors.Count - 1];
int lastOccupiedSectorIndexInRail = rail.Sectors.IndexOf(lastOccupiedSector);
if (lastOccupiedSectorIndexInRail < rail.Sectors.Count - 1)
{
return rail.Sectors[lastOccupiedSectorIndexInRail + 1];
}
else
{
return null;
}
}
/// <summary>
/// Draws the given rail.
/// </summary>
/// <param name="rail">the rail to draw.</param>
/// <param name="startX">The x starting point.</param>
/// <param name="y">The y starting point.</param>
private void DrawSingleSectorRail(Rail rail, int startX, int y)
{
int x = startX;
RailNumberTextBox rntb = new RailNumberTextBox(rail, new Point(x, y));
rntb.ContextMenu = this.CreateRailContextMenu();
this.gbOverview.Controls.Add(rntb);
x += rntb.Size.Width;
SectorTextBox stb = new SectorTextBox(rail.Sectors[0], new Point(x, y));
stb.ContextMenu = this.CreateSectorContextMenu();
this.gbOverview.Controls.Add(stb);
}
/// <summary>
/// Draws the given rail in the group box.
/// </summary>
/// <param name="rail">The rail to draw.</param>
/// <param name="x">The x starting point.</param>
/// <param name="startY">The y starting point.</param>
private void DrawMultipleSectorRail(Rail rail, int x, int startY)
{
int y = startY;
RailNumberTextBox rntb = new RailNumberTextBox(rail, new Point(x, y));
rntb.ContextMenu = this.CreateRailContextMenu();
this.gbOverview.Controls.Add(rntb);
y += rntb.Size.Height;
LineNumberTextBox lntb = new LineNumberTextBox(rail.Line, new Point(x, y));
this.gbOverview.Controls.Add(lntb);
y += lntb.Size.Height;
rail.Sectors.Sort();
foreach (Sector sector in rail.Sectors)
{
SectorTextBox stb = new SectorTextBox(sector, new Point(x, y));
stb.ContextMenu = this.CreateSectorContextMenu();
this.gbOverview.Controls.Add(stb);
y += stb.Size.Height;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Reservation"/> class.
/// Used to reserve at least one sector on the given rail for the given tram.
/// </summary>
/// <param name="tram">Tram the reservation is for.</param>
/// <param name="rail">The rail reserved for the tram.</param>
public Reservation(Tram tram, Rail rail)
{
this.Tram = tram;
this.Rail = rail;
}
/// <summary>
/// Fetches all sectors that are part of the given rail, and returns them.
/// </summary>
/// <param name="rail">The rail to fetch the sectors for</param>
/// <param name="closeConnection">Whether the database connection should be closed after the call. It is recommended not to give a value for this parameter.</param>
/// <returns>A list of sectors that are part of the given rail</returns>
public static List<Sector> GetSectors(Rail rail, bool closeConnection = true)
{
try
{
OracleCommand command = CreateOracleCommand("SELECT ID, nummer, WAGEN_ID, geblokkeerd FROM SECTOR WHERE SPOOR_ID = :RailID");
command.Parameters.Add(":RailID", rail.ID);
OracleDataReader reader = ExecuteQuery(command);
List<Sector> sectors = new List<Sector>();
while (reader.Read())
{
try
{
int sectorID = Convert.ToInt32(reader["ID"].ToString());
int number = Convert.ToInt32(reader["nummer"].ToString());
int tramID = -1;
int.TryParse(reader["WAGEN_ID"].ToString(), out tramID);
int blockedInt = Convert.ToInt32(reader["geblokkeerd"].ToString());
bool blocked = blockedInt == 1;
Sector sector = new Sector(sectorID, number, blocked, rail, null);
Tram tram = GetTram(sector, false);
if (tram != null)
{
sector.Tram = tram;
tram.Sector = sector;
}
sectors.Add(sector);
}
catch (Exception exc)
{
Debug.WriteLine(exc.Message);
continue;
}
}
return sectors;
}
finally
{
if (closeConnection)
{
connection.Close();
}
}
}
/// <summary>
/// Returns a list with all reservations for trams on lines, for the given tram depot.
/// Reservations are used to keep at least on the sector on the rail of the reservation free for the given tram the reservation is made for.
/// </summary>
/// <param name="tramDepot">The tram depot to fetch all reservations for.</param>
/// <param name="closeConnection">If true, closes the database connection at the end of this method.</param>
/// <returns>A list with all reservations for trams on lines, for the given tram depot.</returns>
public static List<Reservation> GetReservations(TramDepot tramDepot, bool closeConnection = true)
{
try
{
OracleCommand command = CreateOracleCommand("SELECT SPOOR_ID, WAGEN_ID FROM RESERVERING WHERE SPOOR_ID IN ( SELECT ID FROM SPOOR WHERE REMISE_ID = :TramDepotID )");
command.Parameters.Add(":TramDepotID", tramDepot.ID);
OracleDataReader reader = ExecuteQuery(command);
List<Reservation> reservations = new List<Reservation>();
while (reader.Read())
{
try
{
Tram t = new Tram(Convert.ToInt32(reader["WAGEN_ID"].ToString()));
Rail r = new Rail(Convert.ToInt32(reader["SPOOR_ID"].ToString()));
reservations.Add(new Reservation(t, r));
}
catch (Exception exc)
{
Debug.WriteLine(exc.Message);
continue;
}
}
return reservations;
}
finally
{
if (closeConnection)
{
connection.Close();
}
}
}
/// <summary>
/// Changes the isBlocked status for every sector of the given rail to the new value.
/// </summary>
/// <param name="rail">The rail for which sectors the isBlocked statuses have to be changed.</param>
/// <param name="newIsBlocked">Whether the sectors have to be blocked or unblocked.</param>
/// <param name="closeConnection">If true, closes the database connection at the end of this method.</param>
/// <returns>Amount of updated entries. Should match the amount of sectors on the rail.</returns>
public static int ChangeRailIsBlocked(Rail rail, bool newIsBlocked, bool closeConnection = true)
{
try
{
int updates = 0;
foreach (Sector sector in rail.Sectors)
{
try
{
bool success = ChangeSectorIsBlocked(sector, newIsBlocked, false);
if (success)
{
updates++;
}
}
catch (Exception exc)
{
Debug.WriteLine(exc.Message);
continue;
}
}
return updates;
}
finally
{
if (closeConnection)
{
connection.Close();
}
}
}
/// <summary>
/// Returns the rail from the current row of data in the given reader. Given reader must contain column data for $'ID', 'nummer' and 'type'$.
/// </summary>
/// <param name="reader">The OracleDataReader containing the information to parse (reader.Read() called prior to calling this method).</param>
/// <returns>Rail without the sector of the rail.</returns>
private static Rail ParseRail(OracleDataReader reader)
{
int railId = Convert.ToInt32(reader["ID"].ToString());
int number = Convert.ToInt32(reader["nummer"].ToString());
string type = reader["type"].ToString();
RailType railType;
if (!Enum.TryParse(type, out railType))
{
throw new ArgumentException("Rail type could not be parsed as a RailType");
}
Rail rail = new Rail(railId, number, railType, null);
Line line = GetLine(rail, false);
rail.Line = line;
return rail;
}
/// <summary>
/// Returns the line bound to this rail, or null if no line is bound to the given rail.
/// </summary>
/// <param name="rail">The rail to fetch the line of.</param>
/// <param name="closeConnection">Whether the database connection should be closed at the end of this method.</param>
/// <returns>The line bound to the given rail, or null if no line is bound.</returns>
private static Line GetLine(Rail rail, bool closeConnection = true)
{
try
{
OracleCommand command = CreateOracleCommand("SELECT ID, nummer, kleur FROM LIJN WHERE ID IN ( SELECT LIJN_ID FROM LIJN_SPOOR WHERE SPOOR_ID = :RailId )");
command.Parameters.Add(":RailID", rail.ID);
OracleDataReader reader = ExecuteQuery(command);
if (!reader.HasRows)
{
return null;
}
int id = Convert.ToInt32(reader["ID"].ToString());
string number = reader["nummer"].ToString();
string colorString = reader["kleur"].ToString();
System.Drawing.Color color = System.Drawing.ColorTranslator.FromHtml(colorString);
return new Line(id, number, color);
}
finally
{
if (closeConnection)
{
connection.Close();
}
}
}
