public static async Task <(Local::TimetableInfo timetable, Exception exception)> GetTimetableFromCist(Local::Entity entity, DateTime dateStart, DateTime dateEnd)
        {
            if ((await SettingsRepository.CheckCistTimetableUpdateRights(entity)).Count == 0)
            {
                return(null, null);
            }

            try
            {
                MessagingCenter.Send(Application.Current, MessageTypes.TimetableUpdating, entity);
                Analytics.TrackEvent("Cist request", new Dictionary <string, string>
                {
                    { "Type", "GetTimetable" },
                    { "Subtype", entity.Type.ToString() },
                    { "Hour of the day", DateTime.Now.Hour.ToString() }
                });

                // Getting events
                Local::TimetableInfo timetable = await GetTimetableLocal(entity) ?? new(entity);

                using HttpClient client = new();
                Uri    uri         = Urls.CistApiEntityTimetable(entity.Type, entity.ID, dateStart, dateEnd);
                string responseStr = await client.GetStringOrWebExceptionAsync(uri);

                responseStr = responseStr.Replace("&amp;", "&");
                responseStr = responseStr.Replace("\"events\":[\n]}]", "\"events\": []");
                Cist::Timetable cistTimetable = CistHelper.FromJson <Cist::Timetable>(responseStr);

                // Check for valid results
                if (timetable.Events.Count != 0 && cistTimetable.Events.Count == 0)
                {
                    Analytics.TrackEvent("Received timetable is empty", new Dictionary <string, string>
                    {
                        { "Entity", $"{entity.Type} {entity.Name} ({entity.ID})" },
                        { "From", dateStart.ToString("dd.MM.yyyy") },
                        { "To", dateEnd.ToString("dd.MM.yyyy") }
                    });

                    return(null, null);
                }

                // Updating timetable information
                timetable.Events = cistTimetable.Events.Select(ev =>
                {
                    Local::Event localEvent = MapConfig.Map <Cist::Event, Local::Event>(ev);
                    localEvent.Lesson       = MapConfig.Map <Cist::Lesson, Local::Lesson>(cistTimetable.Lessons.First(l => l.Id == ev.LessonId));
                    localEvent.Type         = MapConfig.Map <Cist::EventType, Local::EventType>(
                        cistTimetable.EventTypes.FirstOrDefault(et => et.Id == ev.TypeId) ?? Cist::EventType.UnknownType
                        );
                    localEvent.Teachers = cistTimetable.Teachers
                                          .Where(t => ev.TeacherIds.Contains(t.Id))
                                          .DistinctBy(t => t.ShortName.Replace('ї', 'i'))
                                          .Select(t => MapConfig.Map <Cist::Teacher, Local::Teacher>(t))
                                          .ToList();
                    localEvent.Groups = cistTimetable.Groups
                                        .Where(g => ev.GroupIds.Contains(g.Id))
                                        .Select(g => MapConfig.Map <Cist::Group, Local::Group>(g))
                                        .ToList();
                    return(localEvent);
                })
                                   .Distinct()
                                   .ToList();

                // Saving timetables
                await UpdateTimetableLocal(timetable);

                // Updating LastUpdated for saved groups
                List <Local::SavedEntity> savedEntities = await UniversityEntitiesRepository.GetSaved();

                foreach (var savedEntity in savedEntities.Where(e => e == entity))
                {
                    savedEntity.LastUpdated = DateTime.Now;
                }
                await UniversityEntitiesRepository.UpdateSaved(savedEntities);

                return(timetable, null);
            }
            catch (Exception ex)
            {
                ex.Data.Add("Entity", $"{entity.Type} {entity.Name} ({entity.ID})");
                ex.Data.Add("From", dateStart.ToString("dd.MM.yyyy"));
                ex.Data.Add("To", dateEnd.ToString("dd.MM.yyyy"));
                MessagingCenter.Send(Application.Current, MessageTypes.ExceptionOccurred, ex);

                return(null, ex);
            }
            finally
            {
                MessagingCenter.Send(Application.Current, MessageTypes.TimetableUpdated, entity);
            }
        }
Exemplo n.º 2
0
        public static Local.TimetableInfo GetTimetableFromCist(Local.SavedEntity entity, DateTime dateStart, DateTime dateEnd)
        {
            if (SettingsRepository.CheckCistTimetableUpdateRights(entity).Count == 0)
            {
                return(null);
            }

            using (var client = new WebClient
            {
                Encoding = Encoding.GetEncoding("Windows-1251")
            })
            {
                try
                {
                    Local.TimetableInfo timetable = GetTimetableLocal(entity);

                    // Getting events
                    Uri    uri         = new Uri(Urls.CistEntityTimetableUrl(entity.Type, entity.ID, dateStart, dateEnd));
                    string responseStr = client.DownloadString(uri);
                    responseStr = responseStr.Replace("&amp;", "&");
                    responseStr = responseStr.Replace("\"events\":[\n]}]", "\"events\": []");
                    Cist.Timetable cistTimetable = Serialisation.FromJson <Cist.Timetable>(responseStr);

                    // Updating timetable information
                    if (timetable == null)
                    {
                        timetable = new Local.TimetableInfo(entity);
                    }
                    timetable.Events = cistTimetable.Events.Select(ev =>
                    {
                        Local.Event localEvent = MapConfig.Map <Cist.Event, Local.Event>(ev);
                        localEvent.Lesson      = MapConfig.Map <Cist.Lesson, Local.Lesson>(cistTimetable.Lessons.First(l => l.Id == ev.LessonId));
                        localEvent.Type        = MapConfig.Map <Cist.EventType, Local.EventType>(cistTimetable.EventTypes.First(et => et.Id == ev.TypeId));
                        localEvent.Teachers    = cistTimetable.Teachers
                                                 .Where(t => ev.TeacherIds.Contains(t.Id))
                                                 .DistinctBy(t => t.ShortName.Replace('ї', 'i'))
                                                 .Select(t => MapConfig.Map <Cist.Teacher, Local.Teacher>(t))
                                                 .ToList();
                        localEvent.Groups = cistTimetable.Groups
                                            .Where(g => ev.GroupIds.Contains(g.Id))
                                            .Select(g => MapConfig.Map <Cist.Group, Local.Group>(g))
                                            .ToList();
                        return(localEvent);
                    }).ToList();

                    // Updating LastUpdated for saved groups
                    List <Local.SavedEntity> AllSavedEntities = UniversityEntitiesRepository.GetSaved();
                    foreach (Local.SavedEntity savedEntity in AllSavedEntities.Where(e => e == entity))
                    {
                        savedEntity.LastUpdated = DateTime.Now;
                    }
                    UniversityEntitiesRepository.UpdateSaved(AllSavedEntities);

                    // Saving timetables
                    UpdateTimetableLocal(timetable);
                    Device.BeginInvokeOnMainThread(() =>
                    {
                        MessagingCenter.Send(Application.Current, MessageTypes.TimetableUpdated, entity);
                    });

                    return(timetable);
                }
                catch (Exception ex)
                {
                    Device.BeginInvokeOnMainThread(() =>
                    {
                        ex.Data.Add("Entity", $"{entity.Type} {entity.Name} ({entity.ID})");
                        ex.Data.Add("From", dateStart.ToString("dd.MM.yyyy"));
                        ex.Data.Add("To", dateEnd.ToString("dd.MM.yyyy"));
                        MessagingCenter.Send(Application.Current, MessageTypes.ExceptionOccurred, ex);
                    });
                }
            }
            return(null);
        }