// Reads class' data from config file, makes object and returns pointer
// Returns NULL if method cannot parse configuration data
private CourseClass ParseCourseClass(Dictionary <string, JsonElement> data)
{
int pid = 0, cid = 0, dur = 1;
bool lab = false;
var groups = new List <StudentsGroup>();
foreach (string key in data.Keys)
{
switch (key)
{
case "professor":
GetMember(data[key], ref pid);
break;
case "course":
GetMember(data[key], ref cid);
break;
case "lab":
GetMember(data[key], ref lab);
break;
case "duration":
GetMember(data[key], ref dur);
break;
case "group":
case "groups":
if (JsonValueKind.Array.Equals(data[key].ValueKind))
{
var grpList = data[key].EnumerateArray();
foreach (var grp in grpList)
{
var g = GetStudentsGroupById(grp.GetInt32());
if (g != null)
{
groups.Add(g);
}
}
}
else
{
int group = -1;
GetMember(data[key], ref group);
var g = GetStudentsGroupById(group);
if (g != null)
{
groups.Add(g);
}
}
break;
}
}
// get professor who teaches class and course to which this class belongs
Professor p = GetProfessorById(pid);
Course c = GetCourseById(cid);
// does professor and class exists
if (c == null || p == null)
{
return(null);
}
// make object and return
return(new CourseClass(p, c, lab, dur, groups.ToArray()));
}
// Returns TRUE if another class has same professor.
public bool ProfessorOverlaps(CourseClass c)
{
return(Professor.Equals(c.Professor));
}