[Update] service and model class for Course

kzi-nastava · May 27, 2024 · 86928dc · 86928dc
1 parent 9df3a0a
commit 86928dc
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Showing 5 changed files with 24 additions and 37 deletions.
diff --git a/LangLang/BusinessLogic/UseCases/CourseService.cs b/LangLang/BusinessLogic/UseCases/CourseService.cs
@@ -47,7 +47,7 @@ public void Delete(int id)
         }
         public void DeleteByTutor(Tutor tutor)
         {
-            foreach (Course course in GetByTutor(tutor))
+            foreach (Course course in GetByTutor(tutor.Id))
             {
                 if (course.StartDateTime > DateTime.Now)
                 {
@@ -180,20 +180,11 @@ public List<Course> GetAll()
         {
             return _courses.GetAll();
         }
-        public DateTime GetEnd(Course course)
-        {
-            return course.TimeSlots[course.TimeSlots.Count - 1].GetEnd();
-        }
 
-        public bool IsActive(Course course)
-        {
-            if (course.StartDateTime <= DateTime.Now && GetEnd(course) >= DateTime.Now) return true;
-            return false;
-        }
         public int NumActiveCourses(Tutor tutor)
         {
             int active = 0;
-            List<Course> coursesByTutor = GetByTutor(tutor);
+            List<Course> coursesByTutor = GetByTutor(tutor.Id);
             foreach (Course course in coursesByTutor)
             {
                 if (course.IsActive())
@@ -203,20 +194,6 @@ public int NumActiveCourses(Tutor tutor)
             }
             return active;
         }
-        public List<Course> GetByTutor(Tutor tutor)
-        {
-            List<Course> coursesByTutor = new List<Course>();
-
-            foreach (Course course in GetAll())
-            {
-                if (course.TutorId == tutor.Id)
-                {
-                    coursesByTutor.Add(course);
-                }
-            }
-
-            return coursesByTutor;
-        }
 
         public List<Course> GetByTutor(int tutorId)
         {

diff --git a/LangLang/BusinessLogic/UseCases/TutorRatingService.cs b/LangLang/BusinessLogic/UseCases/TutorRatingService.cs
@@ -72,7 +72,7 @@ public double GetAverageRating(Tutor tutor)
         {
             CourseService courseService = new();
             List<double> ratings = new();
-            foreach (Course course in courseService.GetByTutor(tutor))
+            foreach (Course course in courseService.GetByTutor(tutor.Id))
             {
                 ratings.Add(GetAverageTutorRating(course));
             }

diff --git a/LangLang/Domain/Models/Course.cs b/LangLang/Domain/Models/Course.cs
@@ -105,9 +105,8 @@ public int DaysUntilStart()
 
         public bool IsHeldInLastYear()
         {
-            var endDate = TimeSlots[^1].GetEnd();
             DateTime oneYearAgo = DateTime.Now.AddYears(-1);
-            return endDate > oneYearAgo && endDate <= DateTime.Now;
+            return GetEnd() > oneYearAgo && GetEnd() <= DateTime.Now;
         }
 
         public override string ToString()
@@ -130,5 +129,19 @@ public string ToPdfString()
         {
             return Id + " " + " " + Language + " " + Level;
         }
+
+        public DateTime GetEnd()
+        {
+            return TimeSlots[TimeSlots.Count - 1].GetEnd();
+        }
+        public bool IsActive()
+        {
+            if (StartDateTime <= DateTime.Now && GetEnd() >= DateTime.Now) return true;
+            return false;
+        }
+        public bool CanChange()
+        {
+            return StartDateTime >= DateTime.Now.AddDays(Constants.COURSE_MODIFY_PERIOD); ;
+        }
     }
 }
diff --git a/LangLang/WPF/ViewModels/CourseViewModels/CoursesTutorViewModel.cs b/LangLang/WPF/ViewModels/CourseViewModels/CoursesTutorViewModel.cs
@@ -28,7 +28,7 @@ public void Update()
         {
             Courses.Clear();
             CourseService courseService = new();
-            foreach (Course course in courseService.GetByTutor(LoggedIn))
+            foreach (Course course in courseService.GetByTutor(LoggedIn.Id))
             {
                 Courses.Add(new CourseViewModel(course));
             }

diff --git a/LangLang/WPF/Views/TutorView/Tabs/Courses.xaml.cs b/LangLang/WPF/Views/TutorView/Tabs/Courses.xaml.cs
@@ -67,8 +67,7 @@ private void CourseSearchWindowBtn_Click(object sender, RoutedEventArgs e)
 
         private void CourseUpdateWindowBtn_Click(object sender, RoutedEventArgs e)
         {
-            CourseService courseService = new();
-            if (courseService.CanChange(CoursesViewModel.SelectedCourse.Id))
+            if (CoursesViewModel.SelectedCourse.ToCourse().CanChange())
             {
                 CourseUpdateWindow updateWindow = new(this, CoursesViewModel.SelectedCourse.ToCourse());
                 updateWindow.Show();
@@ -81,9 +80,9 @@ private void CourseUpdateWindowBtn_Click(object sender, RoutedEventArgs e)
 
         private void CourseDeleteBtn_Click(object sender, RoutedEventArgs e)
         {
-            CourseService courseService = new();
-            if (courseService.CanChange(CoursesViewModel.SelectedCourse.Id))
+            if (CoursesViewModel.SelectedCourse.ToCourse().CanChange())
             {
+                CourseService courseService = new();
                 courseService.Delete(CoursesViewModel.SelectedCourse.Id);
                 CoursesViewModel.Update();
                 MessageBox.Show("The course has been successfully deleted.", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
@@ -96,8 +95,7 @@ private void CourseDeleteBtn_Click(object sender, RoutedEventArgs e)
 
         private void EnterGradeBtn_Click(object sender, RoutedEventArgs e)
         {
-            CourseService courseService = new();
-            if (courseService.GetEnd(CoursesViewModel.SelectedCourse.ToCourse()) < DateTime.Now)
+            if (CoursesViewModel.SelectedCourse.ToCourse().GetEnd() < DateTime.Now)
             {
                 EnterGradesWindow gradesWindow = new(CoursesViewModel.SelectedCourse);
                 gradesWindow.Show();
@@ -109,8 +107,7 @@ private void EnterGradeBtn_Click(object sender, RoutedEventArgs e)
         }
         private void DurationOfCourseBtn_Click(object sender, RoutedEventArgs e)
         {
-            CourseService courseService = new();
-            if (courseService.IsActive(CoursesViewModel.SelectedCourse.ToCourse()))
+            if (CoursesViewModel.SelectedCourse.ToCourse().IsActive())
             {
                 DurationOfCourseWindow courseWindow = new(CoursesViewModel.SelectedCourse);
                 courseWindow.Show();