public (DepartmentVisitStatus, List <List <int> >) Query(int deptId)
{
if (deptId < 1 || deptId > deptCount)
{
throw new ArgumentException("Department ID should be within the [1; deptCount] range");
}
DepartmentVisitStatus visitStatus = DepartmentVisitStatus.Unvisited;
List <List <int> > uniqueVisits = null;
List <string> record = dao.GetDeptRecord(deptId);
visitStatus = (DepartmentVisitStatus)Enum.Parse(typeof(DepartmentVisitStatus), record[0]);
uniqueVisits = new List <List <int> >();
for (int i = 1; i < record.Count; ++i)
{
List <int> uniqueVisit = new List <int>();
string line = record[i];
for (int j = 0; j < line.Length; ++j)
{
if (line[j] == '1')
{
uniqueVisit.Add(j + 1);
}
}
uniqueVisits.Add(uniqueVisit);
}
return(visitStatus, uniqueVisits);
}
internal void FinalizeDeptRecord(int deptId, DepartmentVisitStatus visitStatus, List <string> visitRecords)
{
try
{
using (StreamWriter sw = new StreamWriter(GetDeptFilename(deptId), false))
{
sw.WriteLine(visitStatus.ToString());
foreach (string line in visitRecords)
{
sw.WriteLine(line);
}
}
}
catch (Exception e)
{
Console.WriteLine("The file could not be written:");
Console.WriteLine(e.Message);
}
}
