private string GetTopStudentsPraise(List <StudentHistoryDTO> list)
{
if (list != null)
{
var speech = new StringBuilder();
var topStudents = StudentsPerformanceHelper.GetTopStudents(list);
var x = new Random().Next(0, 3);
if (topStudents.Count == 1)
{
switch (x)
{
case 0:
speech.Append($"Currently the top students for this class is {topStudents.FirstOrDefault().Key}" +
$" with a score of {topStudents.FirstOrDefault().Value.ToString()}. ");
break;
case 1:
speech.Append($"{topStudents.FirstOrDefault().Key} is having the" +
$" highest score in the class, congratulation! ");
break;
case 2:
speech.Append($"With the score of {topStudents.FirstOrDefault().Value.ToString()}. " +
$"I wanna say that, now, {topStudents.FirstOrDefault().Key} is the top student" +
$", congratulation {topStudents.FirstOrDefault().Key}. ");
break;
}
speech.Append("The rest of you please try your best!");
}
else if (topStudents.Count <= 5)
{
foreach (var stud in topStudents)
{
speech.Append(stud.Key);
speech.Append(", ");
}
speech.Append(" are currently the top students in this class, ");
speech.Append($"with a score of {topStudents.FirstOrDefault().Value.ToString()}. ");
speech.Append("Great job everyone!");
}
else
{
speech.Append($"Many of you have done well with a score of {topStudents.FirstOrDefault().Value.ToString()}. ");
speech.Append("Keep up the good work! ");
}
return(speech.ToString());
}
return(null);
}
private static string GetTopStreakPraise(List <StudentHistoryDTO> list)
{
if (list != null)
{
var speech = new StringBuilder();
var studentsStreak = StudentsPerformanceHelper.GetCorrectStreak(list);
var numOfQuestions = StudentsPerformanceHelper.GetNumberOfQuestions(list);
var maxStreak = studentsStreak.Values.Max();
var studentsFullStreak = new List <string>();
foreach (var stud in studentsStreak)
{
if (stud.Value == maxStreak)
{
studentsFullStreak.Add(stud.Key);
}
}
if (studentsFullStreak.Count == 1)
{
speech.Append($"Only {studentsFullStreak[0]} has gotten every question correct! ");
speech.Append($"A round of applause for {studentsFullStreak[0]}. ");
}
else if (studentsFullStreak.Count > 1)
{
if (studentsFullStreak.Count > 1 && studentsFullStreak.Count <= 5)
{
foreach (var stud in studentsFullStreak)
{
speech.Append($"{stud}, ");
}
speech.Append("have gotten every question correct! ");
}
else if (studentsFullStreak.Count > 5)
{
speech.Append("I am very happy that many of you gotten all questions correct! ");
}
speech.Append("Keep up the good work! ");
}
else
{
return(null);
}
return(speech.ToString());
}
return(null);
}
private void AnalyzeStudentPerformance(List <StudentHistoryDTO> list)
{
var rdm = new Random();
var rdmNum = rdm.Next(1, 4); // generate random number 1-3
int incorrectCnt = StudentsPerformanceHelper.GetNumberOfInCorrectStudent(list);
int correctCnt = StudentsPerformanceHelper.GetNumberOfCorrectStudent(list);
var speech = "";
if (correctCnt == 0)
{
var x = rdm.Next(0, 3);
switch (x)
{
case 0:
speech = "I am very sad now, because no one got any correct answer for this question. ";
break;
case 1:
speech = "No one is correct. Is it because this question too difficult? ";
break;
case 2:
speech = "Sorry to say this, but none of you had a correct answer. ";
break;
}
speech += "Come on guys, don't give up. ";
LessonHelper.InsertPraise(speech);
return;
}
else
{
var x = rdm.Next(0, 3);
if (incorrectCnt == 0)
{
switch (x)
{
case 0:
speech = "Brilliant! No one did any mistake for this question. ";
break;
case 1:
speech = "Amazing! Everybody answers are correct. ";
break;
case 2:
speech = "Incredible! All of you got the correct answer. ";
break;
}
speech += "Everyone, please clap your hands";
LessonHelper.InsertPraise(speech);
return;
}
else if (correctCnt >= incorrectCnt)
{
switch (x)
{
case 0:
speech = "Well, I am every happy to see many of you got correct answer. ";
break;
case 1:
speech = "Great! Most of you did a good job! ";
break;
case 2:
speech = "Good job everybody, most of you are correct. ";
break;
}
}
}
var numOfFullScore = StudentsPerformanceHelper.GetNumOfFullScore(list);
if (numOfFullScore != 0)
{
speech += $"Awesome, we have {numOfFullScore.ToString()} students with full score! ";
}
switch (rdmNum)
{
case 1:
speech += GetTopStudentsPraise(list);
break;
case 2:
speech += GetTopStudentsPraise(list);
break;
case 3:
speech += GetTopStudentsPraise(list);
break;
}
LessonHelper.InsertPraise(speech);
}