internal bool Menu()
{
//Start Menu
string choice = StartMenu();
//Menu choices
switch (choice)
{
case "1":
return(WeightBook.CreateNewWeightBook(username));
case "2":
return(WeightBook.AddNewWeightAndDate(username));
case "3":
return(WeightStatistics.ShowStatistics(username, stats, book));
case "4":
return(ExitProgram());
case "5":
username = UserMenu();
return(true);
default:
return(Errors.NonValidAction());
}
}
public WeightStatistics ComputeStatistics(WeightStatistics stats)
{
float start = weights.FirstOrDefault();
int weightsCount = weights.Count() - 1;
float last = weights.LastOrDefault();
foreach (float weight in weights)
{
stats.HighestWeight = Math.Max(weight, stats.HighestWeight);
stats.LowestWeight = Math.Min(weight, stats.LowestWeight);
}
stats.LostWeight = start - last;
stats.AverageWeight = stats.LostWeight / weightsCount;
stats.Startweight = start;
stats.Startdate = dates.FirstOrDefault();
stats.LatestWeight = last;
return(stats);
}
public static bool ShowStatistics(string username, WeightStatistics stats, WeightBook book)
{
Console.Clear(); // header for showing statistics.
Console.WriteLine();
Console.WriteLine(" Weight Book Statistics: ");
Console.WriteLine();
// Read info from "WeightBook(username).txt" file.
try
{
// Declerations and Initialisation
float startWeight = book.ReadStartWeight(username);
string startDate = book.ReadStartDate(username);
string latestDate = book.dates.LastOrDefault();
int count = (book.dates.Count() - 1);
float[] weights = book.WriteWeights();
string[] dates = book.WriteDates();
stats = book.ComputeStatistics(stats);
float lostWeight = stats.LostWeight;
float average = stats.AverageWeight;
if (count <= 1)
{
average = 0;
}
if (average < 0)
{
average *= -1;
}
// Write stored info to console in two columns.
Console.WriteLine(" Stored dates and weights: ");
Console.WriteLine();
Console.WriteLine(" Dates " + " " + " Weights ");
for (int i = 0; i < (dates.Length); i++)
{
Console.Write(" " + dates[i]);
Console.WriteLine(" " + weights[i]);
}
Console.WriteLine();
// Write statistics to console.
Console.WriteLine();
Console.Write(" Start Weight : {0:f}", startWeight);
Console.WriteLine(" at " + startDate);
Console.Write(" Latest weight : {0:f}", stats.LatestWeight);
Console.WriteLine(" at " + latestDate);
Console.WriteLine();
Console.WriteLine(" Highest weight : {0:f}", stats.HighestWeight);
Console.WriteLine(" Lowest weight : {0:f}", stats.LowestWeight);
// Is there weightloss or gain?
if (lostWeight < 0)
{
lostWeight *= -1;
Console.WriteLine(" Gained weight : {0:f}", lostWeight);
}
else
{
Console.WriteLine(" Lost weight : {0:f}", lostWeight);
}
Console.Write(" Average : {0:f}", average);
Console.WriteLine();
Console.WriteLine();
return(MainMenu.BackToMenu());
}
catch (Exception)
{
Console.WriteLine(" A WeightBook with this name could not be found. ");
return(MainMenu.BackToMenu());
}
}