public UserTrainingProgram CreateUserTrainingProgram(DefaultTrainingProgram defaultProgram)
{
var userPreferredWorkoutDays = user.PreferredWorkoutDays.Split(';');
var userProgram = new UserTrainingProgram()
{
Difficulty = defaultProgram.Difficulty,
DurationInWeeks = defaultProgram.DurationInWeeks,
TrainingProgramGoal = defaultProgram.TrainingProgramGoal,
TrainingProgramType = defaultProgram.TrainingProgramType,
Name = defaultProgram.Name,
Id = Guid.NewGuid().ToString()
};
int currentWorkoutId = 0;
var workoutsIds = defaultProgram.WorkoutIds.Split(';');
foreach (var day in userPreferredWorkoutDays)
{
switch (day)
{
case "1":
userProgram.SundayWorkoutId = workoutsIds[currentWorkoutId];
break;
case "2":
userProgram.MondayWorkoutId = workoutsIds[currentWorkoutId];
break;
case "3":
userProgram.TuesdayWorkoutId = workoutsIds[currentWorkoutId];
break;
case "4":
userProgram.WednesdayWorkoutId = workoutsIds[currentWorkoutId];
break;
case "5":
userProgram.ThursdayWorkoutId = workoutsIds[currentWorkoutId];
break;
case "6":
userProgram.FridayWorkoutId = workoutsIds[currentWorkoutId];
break;
case "7":
userProgram.SaturdayWorkoutId = workoutsIds[currentWorkoutId];
break;
}
currentWorkoutId = (currentWorkoutId + 1) % workoutsIds.Count();
}
return(userProgram);
}
public List <UserTrainingProgram> PostAsync([FromBody] ChooseTrainingProgramBody body)
{
var userPreferredWorkoutDays = body.User.PreferredWorkoutDays.Split(';');
//First, filter by preferred training program type
var optionalDefaultProgramsByType = body.AllTrainingPrograms.Where(program => program.TrainingProgramType == body.User.PreferredTrainingProgramType);
// Weight functions definitions
TrainingProgramGoal[] goalsDistance = { TrainingProgramGoal.Speed, TrainingProgramGoal.Flexibility, TrainingProgramGoal.WeightLoss, TrainingProgramGoal.Fitness, TrainingProgramGoal.Strength, TrainingProgramGoal.Size };
Difficulty[] difficulties = { Difficulty.Begginer, Difficulty.Intermediate, Difficulty.Expert };
double firstPlaceGrade = 0;
double secondPlaceGrade = 0;
double thirdPlaceGrade = 0;
DefaultTrainingProgram firstPlace = null;
DefaultTrainingProgram secondPlace = null;
DefaultTrainingProgram thirdPlace = null;
// Calculate grades for all programs
foreach (var program in body.AllTrainingPrograms)
{
double currentProgramGoalWeight = goalsDistance.ToList().FindIndex(goal => goal.Equals(program.TrainingProgramGoal));
double userPreferredGoalWeight = goalsDistance.ToList().FindIndex(goal => goal.Equals(body.User.PreferredTrainingGoal));
double currentProgramDiffiucaltyWeight = difficulties.ToList().FindIndex(difficulty => difficulty.Equals(program.Difficulty));
double userPreferredDiffiucaltyWeight = difficulties.ToList().FindIndex(difficulty => difficulty.Equals(body.User.PreferredTrainingProgramDifficulty));
double goalsGrade = 1 - (Math.Abs(currentProgramGoalWeight - userPreferredGoalWeight) / goalsDistance.Count());
double diffiucaltyGrade = 1 - (Math.Abs(currentProgramDiffiucaltyWeight - userPreferredDiffiucaltyWeight) / difficulties.Count());
double totalProgramGrade = 6 * goalsGrade + diffiucaltyGrade;
// Check if program's grade is bigger then the max grades
if (totalProgramGrade > firstPlaceGrade)
{
thirdPlaceGrade = secondPlaceGrade;
secondPlaceGrade = firstPlaceGrade;
firstPlaceGrade = totalProgramGrade;
thirdPlace = secondPlace;
secondPlace = firstPlace;
firstPlace = program;
}
else if (totalProgramGrade > secondPlaceGrade)
{
thirdPlaceGrade = secondPlaceGrade;
secondPlaceGrade = totalProgramGrade;
thirdPlace = secondPlace;
secondPlace = program;
}
else if (totalProgramGrade > thirdPlaceGrade)
{
thirdPlace = program;
thirdPlaceGrade = totalProgramGrade;
}
}
var optionalUserPrograms = new List <UserTrainingProgram>();
var firstSuggestedProgram = CreateUserTrainingProgram(firstPlace, body.User);
optionalUserPrograms.Add(firstSuggestedProgram);
var secondSuggestedProgram = CreateUserTrainingProgram(secondPlace, body.User);
optionalUserPrograms.Add(secondSuggestedProgram);
var thirdSuggestedProgram = CreateUserTrainingProgram(thirdPlace, body.User);
optionalUserPrograms.Add(thirdSuggestedProgram);
return(optionalUserPrograms);
}
