CS2-88: Changed telemetry analysis interval (to 12 hours parts)

AsbCloudInfrastructure/Services/TelemetryAnalyticsService.cs

@@ -233,16 +233,22 @@ namespace AsbCloudInfrastructure.Services
 
         public void SaveAnalytics()
         {
-            var alltelemetryIds = db.TelemetryDataSaub.Select(t => t.IdTelemetry).Distinct().ToList();
+            var allTelemetryIds = (from telemetry in db.TelemetryDataSaub
+                                   select telemetry.Id)
+                                  .Distinct()
+                                  .ToList();
 
-            foreach(var idTelemetry in alltelemetryIds)
+            foreach(var idTelemetry in allTelemetryIds)
             {
-                var telemetries = db.TelemetryDataSaub.Where(t => t.IdTelemetry == idTelemetry &&
+                var analyzeStartDate = GetAnalyzeStartDate(idTelemetry);
-                    t.Date.Hour == (DateTime.UtcNow.Hour - 1)).ToList();
 
-                foreach(var telemetry in telemetries)
+                while (GetDataSaubsToAnalyze(idTelemetry, analyzeStartDate).Any())
                 {
-                    var dataSaubDto = telemetry.Adapt<TelemetryDataSaubDto>();
+                    var dataSaubsToAnalyze = GetDataSaubsToAnalyze(idTelemetry, (long)analyzeStartDate);
+
+                    foreach (var dataSaub in dataSaubsToAnalyze)
+                    {
+                        var dataSaubDto = dataSaub.Adapt<TelemetryDataSaubDto>();
 
                         saubDataCache.AddData(dataSaubDto);
 
@@ -274,6 +280,7 @@ namespace AsbCloudInfrastructure.Services
                     db.SaveChanges();
                 }
             }
+        }
 
         public async Task<DatesRangeDto> GetOperationsDateRangeAsync(int idWell,
             CancellationToken token = default)
@@ -305,6 +312,42 @@ namespace AsbCloudInfrastructure.Services
             };
         }
 
+        private long GetAnalyzeStartDate(int idTelemetry)
+        {
+            var lastAnalysisInDb = (from analysis in db.TelemetryAnalysis
+                                    where analysis.Id == idTelemetry
+                                    orderby analysis.UnixDate
+                                    select analysis)
+                                        .DefaultIfEmpty()
+                                        .Last();
+
+            var analyzeStartDate = lastAnalysisInDb?.UnixDate;
+
+            if (analyzeStartDate is null)
+            {
+                var firstDataSaub = (from ds in db.TelemetryDataSaub
+                                     where ds.IdTelemetry == idTelemetry
+                                     select ds.Date).FirstOrDefault();
+
+                analyzeStartDate = (long)(firstDataSaub - new DateTime(1970, 1, 1)).TotalSeconds;
+            }
+
+            return (long)analyzeStartDate;
+        }
+
+        private IEnumerable<TelemetryDataSaub> GetDataSaubsToAnalyze(int idTelemetry, long analyzeStartDate)
+        {
+            return (from ds in db.TelemetryDataSaub
+                    let lowerBorder = DateTimeOffset
+                    .FromUnixTimeSeconds(analyzeStartDate)
+                    let upperBorder = DateTimeOffset
+                    .FromUnixTimeSeconds(analyzeStartDate).AddHours(12)
+                    where ds.Id == idTelemetry
+                    && ds.Date > lowerBorder
+                    && ds.Date < upperBorder
+                    select ds).ToList();
+        }
+
         private static IEnumerable<(long IntervalStart, string OperationName, int OperationDuration)> DivideOperationsByIntervalLength(
             IEnumerable<(long IntervalStart, string OperationName, int OperationDuration)> operations, int intervalSeconds)
         {