/// <summary>
/// display retrieve notes from text file and instantiate new notes lis
/// </summary>
private static List <FinchNote> DisplayRetrieveNotes()
{
//
// instantiate a new list (prevents the possibility of adding to existing list)
List <FinchNote> notes = new List <FinchNote>();
//
// local variables
//
FinchNote userNote = FinchNote.A5;
string dataPath;
DisplayHeader("Retrieve Notes");
//
// get the file from the user
//
dataPath = GetDataPath();
//
// checks if the file path exist
//
if (File.Exists(dataPath))
{
//
// pause for user to initiate retrieving data
//
Console.WriteLine("Press Enter to retrieve data from the text file.");
Console.ReadLine();
//
// retrieve and data form the file
//
List <string> lines = File.ReadLines(dataPath).ToList();
foreach (string line in lines)
{
if (Enum.TryParse <FinchNote>(line, out userNote))
{
notes.Add(userNote);
}
}
Console.WriteLine("The notes have been retrieved.");
}
else
{
//
// message displayed if file not found
//
Console.WriteLine("The file you have entered does not exist.");
}
DisplayContinuePrompt();
return(notes);
}
/// <summary>
/// display enter notes to the list
/// </summary>
private static List <FinchNote> DisplayAddNotes(List <FinchNote> notes)
{
//
// local variables
//
FinchNote userNote = FinchNote.A5;
bool keepAdding = true;
bool validResponse = false;
string userResponse;
//
// the user can enter in help to display the instructions
//
Console.WriteLine("Enter 'HELP' to see instructions.");
Console.WriteLine();
Console.WriteLine();
//
// loop runs until user enters 'STOP'
//
while (keepAdding)
{
//
// loop runs until the respones are valid
//
while (!validResponse)
{
//
// prompt user for a note
//
Console.Write("Note: ");
userResponse = Console.ReadLine().ToUpper();
//
// parse note to enum and add to notes list
//
if (Enum.TryParse <FinchNote>(userResponse, out userNote))
{
notes.Add(userNote);
//
// enter loop for the note length, runs until the response is valid
//
while (!validResponse)
{
//
// prompts the user for the length
//
Console.Write("Length: ");
userResponse = Console.ReadLine();
//
// validates response
//
if (userResponse != "1/8" && userResponse != "1/4" && userResponse != "1/2" && userResponse != "1/1" && userResponse != "HELP")
{
//
// message displayed if length is invalid
//
Console.WriteLine();
Console.WriteLine("You have entered an invalid length for the note.");
Console.WriteLine("Please try agian: ");
}
//
// displays the instructions if the user enter help
//
else if (userResponse == "HELP")
{
DisplayEnterNotesInstructions();
}
else
{
//
// add length to notes list
//
switch (userResponse)
{
case "1/8":
notes.Add(FinchNote.EIGHT);
break;
case "1/4":
notes.Add(FinchNote.QUARTER);
break;
case "1/2":
notes.Add(FinchNote.HALF);
break;
case "1/1":
notes.Add(FinchNote.WHOLE);
break;
default:
break;
}
validResponse = true;
}
}
}
//
// display instructions for the user
//
else if (userResponse == "HELP")
{
DisplayEnterNotesInstructions();
}
//
// executed if user enters 'rest'
//
else if (userResponse == "REST")
{
Console.Write("Enter type of rest: ");
userResponse = Console.ReadLine().ToUpper();
//
// validates response
//
if (userResponse != "WHOLE" && userResponse != "HALF" && userResponse != "QUARTER" && userResponse != "EIGHT")
{
//
// message displayed if rest is invalid
//
Console.WriteLine();
Console.WriteLine("You have entered an invalid rest.");
Console.WriteLine("Values allowed are: whole, half, quarter, and eight.");
Console.WriteLine("Please try agian: ");
}
else
{
//
// add length to notes list
//
switch (userResponse)
{
case "WHOLE":
notes.Add(FinchNote.WHOLE);
break;
case "HALF":
notes.Add(FinchNote.QUARTER);
break;
case "QUARTER":
notes.Add(FinchNote.HALF);
break;
case "EIGHT":
notes.Add(FinchNote.EIGHT);
break;
default:
break;
}
}
}
//
// loop ends if user enters 'stop'
//
else if (userResponse == "STOP")
{
keepAdding = false;
validResponse = true;
}
//
// message displays if note entered is invalid
//
else
{
Console.WriteLine();
Console.WriteLine("You have entered an invalid note.");
Console.WriteLine("Please try agian: ");
}
}
validResponse = false;
}
//
// return the list of notes
//
return(notes);
}
