public override void Execute()
{
if (this.Data.Length != 1)
{
throw new InvalidCommandException(this.Input);
}
this.Repository.UnloadData();
OutputWriter.DisplaySuccessfulMessage("Database dropped!");
}
private void PrintOutput(string[] mismatches, bool hasMismatch, string mismatchPath)
{
if (hasMismatch)
{
foreach (string line in mismatches)
{
OutputWriter.WriteMessageOnNewLine(line);
}
File.WriteAllLines(mismatchPath, mismatches);
return;
}
OutputWriter.DisplaySuccessfulMessage("Files are identical. There are no mismatches.");
}
public void CompareContent(string userOutputPath, string expectedOutputPath)
{
try
{
OutputWriter.DisplayWaitingMessage("Reading files...");
string mismatchPath = this.GetMismatchPath(expectedOutputPath);
string[] actualOutputLines = File.ReadAllLines(userOutputPath);
string[] expectedOutputLines = File.ReadAllLines(expectedOutputPath);
bool hasMismatch;
string[] mismatches =
this.GetLinesWithPossibleMismatches(actualOutputLines, expectedOutputLines, out hasMismatch);
this.PrintOutput(mismatches, hasMismatch, mismatchPath);
OutputWriter.DisplaySuccessfulMessage("Files read!");
}
catch (IOException ioException)
{
OutputWriter.DisplayMessage(ioException.Message);
}
}
private void ReadData(string fileName)
{
string pattern = @"([A-Z][a-zA-Z#\+]*_[A-Z][a-z]{2}_\d{4})\s+([A-Za-z]+\d{2}_\d{2,4})\s([\s0-9]+)";
string path = SessionData.currentPath + "\\" + fileName;
if (File.Exists(path))
{
string[] allInputLines = File.ReadAllLines(path);
for (int i = 0; i < allInputLines.Length; i++)
{
if (!string.IsNullOrEmpty(allInputLines[i]) && Regex.IsMatch(allInputLines[i], pattern))
{
Match match = Regex.Match(allInputLines[i], pattern);
string courseName = match.Groups[1].Value;
string username = match.Groups[2].Value;
string scoresString = match.Groups[3].Value;
try
{
int[] scores = scoresString.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
.Select(int.Parse).ToArray();
if (scores.Any(s => s > 100 || s < 0))
{
throw new InvalidScoreException();
}
if (scores.Length > Course.NumberOfTasksOnExam)
{
OutputWriter.DisplayMessage(ExceptionMessages.InvalidNumberOfScores);
continue;
}
if (!this.students.ContainsKey(username))
{
this.students.Add(username, new Student(username));
}
if (!this.courses.ContainsKey(courseName))
{
this.courses.Add(courseName, new Course(courseName));
}
ICourse course = this.courses[courseName];
IStudent student = this.students[username];
student.EnrollInCourse(course);
student.SetMarkOnCourse(courseName, scores);
course.EnrollStudent(student);
}
catch (FormatException fe)
{
OutputWriter.DisplayMessage(fe.Message + $"at line: {i}");
}
}
}
}
else
{
throw new InvalidPathException();
}
this.isDataInitialized = true;
OutputWriter.DisplaySuccessfulMessage("Data read!");
}