// reads visitors entry from csv file
// for initializing the entry while loading the file
public void readEntryCSV(string filePath)
{
try
{
using (var reader = new StreamReader(filePath))
{
if (!reader.EndOfStream)
{
reader.ReadLine();
}
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
var values = line.Split(',');
VisitorsEntry visitorEntry = new VisitorsEntry(Convert.ToDateTime(values[1]), values[2].ToString(), TimeSpan.Parse(values[3]), TimeSpan.Parse(values[4]), Convert.ToDouble(values[5]));
visitorEntry.VisitorId = Int32.Parse(values[0]);
if (visitorController.getVisitor(visitorEntry.VisitorId) != null)
{
this.VisitorEntryList.Add(visitorEntry);
}
}
}
}
catch (IOException)
{
Console.WriteLine("File not found : " + filePath);
}
}
private void entry_btn_Click(object sender, EventArgs e)
{
entry_error_label.Visible = true;
if (this.check_entry_input())
{
int visitor_id = Int32.Parse(visitor_id_field.Text);
TimeSpan entry_time = DateTime.Now.TimeOfDay;
String day = DateTime.Now.DayOfWeek.ToString();
if (entry_time.CompareTo(new TimeSpan(10, 00, 00)) != -1 && entry_time.CompareTo(new TimeSpan(17, 00, 00)) == -1 &&
day != "Sunday" && day != "Saturday")
{
VisitorsEntry entry_record = new VisitorsEntry(visitor_id, day, CurrentDate, entry_time);
if (!File.Exists(visitor_entry_file))
{
// create table row head when creating new csv file
entryController.initiateEntryData(visitor_entry_file);
}
//Appends item to the list
VisitorEntryList.Add(entry_record);
//adds to the csv file
//does not append updates the entire csv file
entryController.writeEntryData(entry_record, visitor_entry_file);
//Adds row to the table
this.addVisitorEntry(entry_record);
}
}
}
// writing new entries to the entry csv file
public void writeEntryData(VisitorsEntry visitorEntry, string filePath)
{
string desktop_path = filePath;
using (var writer = new StreamWriter(desktop_path, append: true))
{
var line = string.Format("{0}, {1}, {2}, {3}, {4}, {5}", visitorEntry.VisitorId, visitorEntry.EntryDate, visitorEntry.Day, visitorEntry.EntryTime, visitorEntry.ExitTime, visitorEntry.Duration);
writer.WriteLine(line);
writer.Flush();
}
}
public void addVisitorEntry(VisitorsEntry entry)
{
// refrences to the visitor from the visitors list
Visitor visitor = visitorController.getVisitor(entry.VisitorId);
if (visitor != null)
{
// check if the data is of entry
if (entry.ExitTime.ToString() != "00:00:00")
{
this.visitor_entry_table.Rows.Add(entry.VisitorId, entry.Day,
visitor.FirstName + " " + visitor.LastName, formatDate(entry.EntryTime), formatDate(entry.ExitTime),
Convert.ToDecimal(string.Format("{0:F3}", entry.Duration)).ToString() + " min");
}
// if the data is of exit
else
{
this.visitor_entry_table.Rows.Add(entry.VisitorId, entry.Day, visitor.FirstName + " " + visitor.LastName, entry.EntryTime, " --:--:-- ", " --:--:-- ");
}
}
}
private void visitor_entry_table_CellContentClick_1(object sender, DataGridViewCellEventArgs e)
{
// get entry time of the selected row
TimeSpan givenEntryTime = TimeSpan.Parse(visitor_entry_table.Rows[e.RowIndex].Cells[3].Value.ToString());
// if there is only one visitor in the list
if (VisitorEntryList.Count == 1)
{
VisitorsEntry entry = VisitorEntryList[0];
entry.ExitTime = DateTime.Now.TimeOfDay;
entry.Duration = entry.ExitTime.Subtract(entry.EntryTime).TotalMinutes;
// updating the visitor list
VisitorEntryList.Remove(entry);
VisitorEntryList.Add(entry);
// updating the csv file
updateVisitorEntryCsv();
refreshVisitorEntryTable();
}
// if selected row is not empty or null
else if (e.RowIndex > -1 && visitor_entry_table.Rows[e.RowIndex].Cells[0] != null)
{
// user binary search to retrive visitor by entry time
VisitorsEntry visitorEntry = entryController.getEntryByDate(givenEntryTime);
// update the list and csv file after visitor exits
if (visitorEntry != null)
{
visitorEntry.ExitTime = DateTime.Now.TimeOfDay;
visitorEntry.Duration = visitorEntry.ExitTime.Subtract(visitorEntry.EntryTime).TotalMinutes;
VisitorEntryList.Remove(visitorEntry);
VisitorEntryList.Add(visitorEntry);
updateVisitorEntryCsv();
}
refreshVisitorEntryTable();
}
}