public static void OrderAndTake(Dictionary <string, List <int> > wantedData,
string comparison,
int studentsToTake)
{
comparison = comparison.ToLower();
if (comparison == "ascending")
{
PrintStudent(wantedData.OrderBy(x => x.Value.Sum())
.Take(studentsToTake)
.ToDictionary(pair => pair.Key, pair => pair.Value));
}
else if (comparison == "descending")
{
PrintStudent(wantedData.OrderByDescending(x => x.Value.Sum())
.Take(studentsToTake)
.ToDictionary(pair => pair.Key, pair => pair.Value));
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidComparisonQuery);
}
}
public static void CompareContent(string userOutputPath, string expectedOutputPath)
{
OutputWriter.WriteMessageOnNewLine("Reading files...");
try
{
var mismatchesPath = GetMismatchPath(expectedOutputPath);
var actualOutputLines = File.ReadAllLines(userOutputPath);
var expectedOutputLine = File.ReadAllLines(expectedOutputPath);
bool hasMismatches;
var mismatches = GetLineWithPossibleMismatches(actualOutputLines, expectedOutputLine, out hasMismatches);
Printoutput(mismatches, hasMismatches, mismatchesPath);
OutputWriter.WriteMessageOnNewLine("Files read!");
}
catch (FileNotFoundException)
{
throw new InvalidPathException();
}
}
private static void FilterAndTake(Dictionary <string, List <int> > wantedData, Predicate <double> givenFilter, int studentsToTake)
{
int counter = 0;
foreach (var username_score in wantedData)
{
if (counter == studentsToTake)
{
break;
}
var avrScore = username_score.Value.Average();
var percentageOfFullfillments = avrScore / 100;
var mark = percentageOfFullfillments * 4 + 2;
if (givenFilter(mark))
{
OutputWriter.PrintStudent(username_score);
counter++;
}
}
}
private static void FilterAndTake(Dictionary <string, List <int> > wantedData, Predicate <double> givenFilter, int studentsToTake)
{
int counterForPrinted = 0;
foreach (var userName_Points in wantedData)
{
if (counterForPrinted == studentsToTake)
{
break;
}
double averageScore = userName_Points.Value.Average();
double percentageOfFullfilment = averageScore / 100;
double mark = percentageOfFullfilment * 4 + 2;
if (givenFilter(mark))
{
OutputWriter.PrintStudent(userName_Points);
counterForPrinted++;
}
}
}
private static void TryTraverseFolder(string input, string[] data)
{
if (data.Length < 2)
{
IOManager.TraverseDirectory(0);
}
else if (data.Length == 2)
{
if (int.TryParse(data[1], out int depth))
{
IOManager.TraverseDirectory(depth);
}
else
{
OutputWriter.DisplayException(ExceptionMessages.UnableToParseNumber);
}
}
else
{
OutputWriter.DisplayException(string.Format(ExceptionMessages.InvalidCommandParametersCount, data[0]));
}
}
public void CompareContent(string userOutputPath, string expectedOutputPath)
{
try
{
OutputWriter.WriteMessageOnNewLine("Reading files...");
string mismatchPath = GetMismatchPath(expectedOutputPath);
string[] actualOuputLines = File.ReadAllLines(userOutputPath);
string[] expectedOutputLines = File.ReadAllLines(expectedOutputPath);
bool hasMismatch;
string[] mismatches = GetLinesWithPossibleMismatches(actualOuputLines, expectedOutputLines, out hasMismatch);
this.PrintOutput(mismatches, hasMismatch, mismatchPath);
OutputWriter.WriteMessageOnNewLine("Files read!");
}
catch (IOException e)
{
OutputWriter.DisplayException(e.Message);
}
}
public void OrderAndTake(Dictionary <string, double> studentsWithMarks, string comparison, int studentsToTake)
{
comparison = comparison.ToLower();
if (comparison == "ascending")
{
this.PrintStudents(studentsWithMarks
.OrderBy(x => x.Value)
.Take(studentsToTake)
.ToDictionary(pair => pair.Key, pair => pair.Value));
}
else if (comparison == "descending")
{
this.PrintStudents(studentsWithMarks
.OrderByDescending(x => x.Value)
.Take(studentsToTake)
.ToDictionary(pair => pair.Key, pair => pair.Value));
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidComparisonQuery);
}
}
public static void TraverseDirectory(string path)
{
OutputWriter.WriteEmptyLine();
int initialIdentation = path.Split('\\').Length;
Queue <string> subFolders = new Queue <string>();
subFolders.Enqueue(path);
while (subFolders.Count != 0)
{
string currentPath = subFolders.Dequeue();
int identetion = currentPath.Split('\\').Length - initialIdentation;
OutputWriter.WriteMessageOnNewLine(string.Format("{0}{1}",
new string('-', identetion),
currentPath));
foreach (var directoryPath in Directory.GetDirectories(currentPath))
{
subFolders.Enqueue(directoryPath);
}
}
}
private void PrintOutput(string[] mismatches, bool hasMismatch, string mismatchPath)
{
if (hasMismatch)
{
foreach (var line in mismatches)
{
OutputWriter.WriteMessageOnNewLine(line);
}
try
{
File.WriteAllLines(mismatchPath, mismatches);
}
catch (DirectoryNotFoundException)
{
throw new InvalidPathException();
}
return;
}
OutputWriter.WriteMessageOnNewLine("Files are identical. There are no mismatches.");
}
private static void ReadData(string fileName)
{
string path = SessionData.GetCurrentDirectoryPath() + "\\" + fileName;
if (File.Exists(path))
{
string[] allInputLines = File.ReadAllLines(path);
for (int line = 0; line < allInputLines.Length; line++)
{
InputEntryIntoDB(allInputLines[line]);
}
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidPath);
return;
}
isDataInitialized = true;
OutputWriter.WriteMessageOnNewLine("Data read");
}
private bool IsQueryForCoursePossible(string courseName)
{
if (isDataInitialized)
{
return(true);
}
else
{
OutputWriter.DisplayExpetion(ExceptionMessages.DataNotInitializedExceptionMessage);
}
//return false;
if (this.courses.ContainsKey(courseName))
{
return(true);
}
else
{
OutputWriter.DisplayExpetion(ExceptionMessages.InexistingStudentInDataBase);
}
return(false);
}
private void PrintOutput(string[] mismatches, bool hasMismatch, string mismatchPath)
{
if (hasMismatch)
{
foreach (string mismatch in mismatches)
{
OutputWriter.WriteMessageOnNewLine(mismatch);
}
//try
//{
File.WriteAllLines(mismatchPath, mismatches);
//}
//catch (DirectoryNotFoundException)
//{
// OutputWriter.DisplayException(ExceptionMessages.InvalidPath);
//}
}
else
{
OutputWriter.WriteMessageOnNewLine($"Files are identical. There are no mismatches.");
}
}
public static void TraverseDirectory(int depth)
{
OutputWriter.WriteEmptyLine();
int initialIdentation = SessionData.currentPath.Split('\\').Length;
Queue <string> subFolders = new Queue <string>();
subFolders.Enqueue(SessionData.currentPath);
while (subFolders.Count != 0)
{
string currentPath = subFolders.Dequeue();
int identation = currentPath.Split('\\').Length - initialIdentation;
try
{
foreach (var directory in Directory.GetDirectories(currentPath))
{
subFolders.Enqueue(directory);
}
if (depth - identation <= 0)
{
break;
}
OutputWriter.WriteMessageOnNewLine(string.Format($"{new string('-', identation)}{currentPath}"));
foreach (var file in Directory.GetFiles(currentPath))
{
int indexOfLastSlash = file.LastIndexOf("\\");
string fileName = file.Substring(indexOfLastSlash);
OutputWriter.WriteMessageOnNewLine(new string('-', indexOfLastSlash) + fileName);
}
}
catch (UnauthorizedAccessException)
{
OutputWriter.DisplayException(ExceptionMessages.UnauthorizedAccessExceptionMessage);
}
}
}
public static void FilterAndTake(Dictionary <string, List <int> > wantedData, Predicate <double> givenFilter,
int studentsToTake)
{
int counterForPrinted = 0;
foreach (var usernamePoint in wantedData)
{
if (counterForPrinted == studentsToTake)
{
break;
}
double averageMark = usernamePoint.Value.Average();
double percentage = averageMark / 100;
double mark = percentage * 4 + 2;
if (givenFilter(mark))
{
OutputWriter.PrintStudent(usernamePoint);
counterForPrinted++;
}
}
}
private static string[] GetLineWithPossibleMismatches(
string[] actualOutputLines,
string[] expectedOutputLines,
out bool hasMismatch
)
{
int minOutputLines = actualOutputLines.Length;
if (actualOutputLines.Length != expectedOutputLines.Length)
{
hasMismatch = true;
minOutputLines = Math.Min(actualOutputLines.Length, expectedOutputLines.Length);
OutputWriter.DisplayException(ExceptionMessages.ComparisonOfFilesWithDifferentSizes);
}
hasMismatch = false;
string output;
string[] mismatches = new string[actualOutputLines.Length];
OutputWriter.WriteMessageOnNewLine(ComparingFilesMessage);
for (int i = 0; i < minOutputLines; i++)
{
string actualLine = actualOutputLines[i];
string expectedLine = expectedOutputLines[i];
if (!actualLine.Equals(expectedLine))
{
output = $"Mismatch at line {i} -- expected: \"{expectedLine}\", actual: \"{actualLine}\"";
hasMismatch = true;
}
else
{
output = actualLine;
output += Environment.NewLine;
}
mismatches[i] = output;
}
return(mismatches);
}
public static void CompareContent(string userOutputPath, string expectedOutputPath)
{
OutputWriter.WriteMessageOnNewLine("Reading files...");
try
{
string mismatchPath = GetMismatchPath(expectedOutputPath);
string[] actualOutputLines = File.ReadAllLines(userOutputPath);
string[] expectedOutputLines = File.ReadAllLines(expectedOutputPath);
bool hasMismatch;
string[] mismatches = GetLinesWithPossibleMismatches(actualOutputLines, expectedOutputLines, out hasMismatch);
PrintOutput(mismatches, hasMismatch, mismatchPath);
OutputWriter.WriteMessageOnNewLine("Files Read!");
}
catch (FileNotFoundException)
{
OutputWriter.DisplayException(ExceptionMessages.InvalidPath);
}
}
private string[] GetLinesWithPossibleMismatches(string[] actualOutputLines, string[] expectedOutputLines, out bool hasMismatch)
{
hasMismatch = false;
string output = string.Empty;
int minOuputLines = actualOutputLines.Length;
if (minOuputLines != expectedOutputLines.Length)
{
hasMismatch = true;
minOuputLines = Math.Min(actualOutputLines.Length, expectedOutputLines.Length);
OutputWriter.WriteMessageOnNewLine(ExceptionMessages.ComparisonOfFilesWithDifferentSizes);
}
string[] mismatches = new string[minOuputLines];
OutputWriter.WriteMessageOnNewLine("Comparing files...");
for (int index = 0; index < minOuputLines; index++)
{
string actualLine = actualOutputLines[index];
string expectedLine = expectedOutputLines[index];
if (!actualOutputLines.Equals(expectedLine))
{
output = string.Format($"Mismatch at line {index} -- expected: \"{expectedLine}\", actual: \"{actualLine}\"");
output += Environment.NewLine;
hasMismatch = true;
}
else
{
output = actualLine;
output += Environment.NewLine;
}
mismatches[index] = output;
}
return(mismatches);
}
private static string[] GetLinesWithPossibleMissmatches(string[] actualOtputLines, string[] expectedOutputLines, out bool hasMismatch)
{
string output = string.Empty;
hasMismatch = false;
OutputWriter.WriteMessageOnNewLine("Comparing files...");
int minOutputLines = actualOtputLines.Length;
if (actualOtputLines.Length != expectedOutputLines.Length)
{
hasMismatch = true;
minOutputLines = Math.Min(actualOtputLines.Length, expectedOutputLines.Length);
OutputWriter.DisplayException(ExceptionMessages.ComparisonOfFilesWithDifferentSizes);
}
string[] mismatches = new string[minOutputLines];
for (int i = 0; i < minOutputLines; i++)
{
string actualLine = actualOtputLines[i];
string expectedLine = expectedOutputLines[i];
if (!actualLine.Equals(expectedLine))
{
output = string.Format("Mismatch at line {0}: '{1}' Expected: '{2}'", i + 1, actualLine, expectedLine);
//output += Environment.NewLine;
hasMismatch = true;
}
else
{
output = actualLine;
//output += Environment.NewLine;
}
mismatches[i] = output;
}
return(mismatches);
}
private static void ReadData(string fileName)
{
string path = SessionData.currentPath + "\\" + fileName;
if (Directory.Exists(path))
{
string[] tokens = path.Split(' ');
string course = tokens[0];
string student = tokens[1];
int mark = int.Parse(tokens[2]);
if (!studentsByCourse.ContainsKey(course))
{
studentsByCourse.Add(course, new Dictionary <string, List <int> >());
}
if (!studentsByCourse[course].ContainsKey(student))
{
studentsByCourse[course].Add(student, new List <int>());
}
studentsByCourse[course][student].Add(mark);
string[] allInputLines = File.ReadAllLines(path);
for (int i = 0; i < allInputLines.Length; i++)
{
if (!string.IsNullOrEmpty(allInputLines[i]))
{
string[] data = allInputLines[i].Split(' ');
}
}
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidPath);
}
isDataInitilize = true;
OutputWriter.WriteMessegesOnNewLine("Data Read!");
}
private static void PrintOutput(string[] mismatches, bool hasMismatch, string mismatchPath)
{
if (hasMismatch)
{
foreach (var line in mismatches)
{
OutputWriter.WriteMessageOnNewLine(line);
}
try
{
File.WriteAllLines(mismatchPath, mismatches);
}
catch (DirectoryNotFoundException)
{
OutputWriter.DisplayException(ExceptionMessages.InvalidPath);
}
}
else
{
OutputWriter.WriteMessageOnNewLine(FilesAreIdenticalMessage);
}
}
public static void ChangeCurrentDirectoryRelative(string relativePath)
{
if (relativePath == "..")
{
try
{
string currentPath = SessionData.currentPath;
int indexOfLastSlash = currentPath.LastIndexOf("\\");
string newPath = currentPath.Substring(0, indexOfLastSlash);
SessionData.currentPath = newPath;
}
catch (ArgumentOutOfRangeException)
{
OutputWriter.WriteMessageOnNewLine(ExceptionMessages.UnableToGoHigherInParitionHierarchy);
}
}
else
{
string currenPath = SessionData.currentPath;
currenPath += "\\" + relativePath;
SessionData.currentPath = currenPath;
}
}
// Method for comparing the content of two paths
public void CompareContent(string userOutputPath, string expectedOutputPath)
{
// Trying to excecute the main logic of the method
// If it detects an exception we throw a new InvalidPathException
try
{
OutputWriter.WriteMessageOnNewLine($"Reading files...");
string mismatchPath = GetMismatchPath(expectedOutputPath);
string[] actualOutputLines = File.ReadAllLines(userOutputPath);
string[] expectedOutputLines = File.ReadAllLines(expectedOutputPath);
bool hasMismatch;
string[] mismatches = GetLinesWithPossibleMismatches(actualOutputLines, expectedOutputLines, out hasMismatch);
this.PrintOutput(mismatches, hasMismatch, mismatchPath);
OutputWriter.WriteMessageOnNewLine("Files read!");
}
catch (IOException)
{
throw new InvalidPathException();
}
}
private static void PrintOutput(string[] mismatches, bool hasMismatch, string mismatchesPath)
{
if (hasMismatch)
{
foreach (var line in mismatches)
{
OutputWriter.WriteMessageOnNewLine(line);
}
try
{
File.WriteAllLines(mismatchesPath, mismatches);
}
catch (DirectoryNotFoundException)
{
OutputWriter.DisplayException(ExceptionMessages.InvalidPath);
}
return;
}
OutputWriter.WriteMessageOnNewLine("Files are identicle. There are no mismatches");
}
public static void ChangeCurrentDirectoryRelative(string relativePath)
{
if (relativePath == "..")
{
try
{
string currentPath = SessionData.currentPath;
int indexOfLastSlash = currentPath.LastIndexOf('\\');
string newPath = currentPath.Substring(0, indexOfLastSlash);
SessionData.currentPath = newPath;
}
catch (ArgumentOutOfRangeException)
{
OutputWriter.DisplayException(ExceptionMessages.UnableToGoHigherInPartitionHierarchy);
}
}
else
{
string currentPath = SessionData.currentPath;
currentPath += $"\\{relativePath}";
ChangeCurrentDirectoryAbsolute(currentPath);
}
}
public void CompareContent(string userOuputPath, string expectedOutputPath)
{
try
{
OutputWriter.WriteMessageOnNewLine("Reading files...");
string mismatchPath = GetMismatchPath(expectedOutputPath);
string[] actualOuputLines = File.ReadAllLines(userOuputPath);
string[] exptectedOuputLines = File.ReadAllLines(expectedOutputPath);
bool hasMismatches;
string[] mismatches = GetLinesWithPossibleMismatches(
actualOuputLines, exptectedOuputLines, out hasMismatches);
PrintOutput(mismatches, hasMismatches, mismatchPath);
OutputWriter.WriteMessageOnNewLine("Files read!");
}
catch (IOException)
{
throw new InvalidPathException();
}
}
public static void ShowDirectory()
{
try
{
foreach (var file in Directory.GetFiles(SessionData.currentPath))
{
int indexOfLastSlash = file.LastIndexOf("\\");
string fileName = file.Substring(indexOfLastSlash);
OutputWriter.WriteMessageOnNewLine(new string('-', indexOfLastSlash) + fileName);
}
foreach (var directory in Directory.GetDirectories(SessionData.currentPath))
{
int indexOfLastSlash = directory.LastIndexOf("\\");
string directoryName = directory.Substring(indexOfLastSlash);
OutputWriter.WriteMessageOnNewLine(new string('-', indexOfLastSlash) + directoryName);
}
}
catch (System.UnauthorizedAccessException)
{
OutputWriter.DisplayException(ExceptionMessages.UnauthorizedAccessExceptionMessage);
}
}
/// <summary>
/// Tries to traverse the folders with given depth. Default depth is 0 (current folder)
/// </summary>
/// <param name="input">Current command</param>
/// <param name="data">Parameters collection: command, depth (0 if not given)</param>
private static void TryTraverseFolders(string input, string[] data)
{
if (data.Length == 1)
{
IOManager.TraverseDirectory(0);
}
else if (data.Length == 2)
{
int depth = 0;
if (int.TryParse(data[1], out depth))
{
IOManager.TraverseDirectory(depth);
}
else
{
OutputWriter.DisplayException(ExceptionMessages.UnableToParseNumber);
}
}
else
{
DisplayInvalidCommandMessage(input);
}
}
private static void TryParseParametersForOrderAndTake(string takeCommand, string takeQuantity, string course, string filter)
{
if (takeCommand == "take")
{
if (takeQuantity == "all")
{
StudentsRepository.OrderAndTake(course, filter);
}
else
{
int studentsToTake;
bool hasParsed = int.TryParse(takeQuantity, out studentsToTake);
if (hasParsed)
{
StudentsRepository.OrderAndTake(course, filter, studentsToTake);
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidTakeQuantityParameter);
}
}
}
}
public static void ChangeCurrentDirectoryRelative(string relativePath)
{
if (relativePath == "..")
{
try
{
string curentPath = SessionData.currentPath;
int index = curentPath.LastIndexOf("\\");
string newPath = curentPath.Substring(0, index);
SessionData.currentPath = newPath;
}
catch (ArgumentOutOfRangeException)
{
OutputWriter.DisplayExeption(ExeptionMessages.UnableToGoHigher);
}
}
else
{
string curentPath = SessionData.currentPath;
curentPath += "\\" + relativePath;
ChangeCurrentDirectoryAbsolute(curentPath);
}
}
public static void ChangeCurrentDirectoryRelative(string relativePath)
{
if (relativePath == "..")
{
try
{
var currentPath = SessionData.currentPath;
var indexOfLastSlash = currentPath.LastIndexOf("\\");
var newPath = currentPath.Substring(0, indexOfLastSlash);
SessionData.currentPath = newPath;
}
catch (ArgumentOutOfRangeException)
{
OutputWriter.DisplayExceptions(ExceptionMessages.UnabelToGoHigherInPartitionHierarchy);
}
}
else
{
var currentPath = SessionData.currentPath;
currentPath += "\\" + relativePath;
ChangeCurrentDirectoryRelative(currentPath);
}
}
