авторизация

CyberBoom/DataHelpers.cs

@@ -0,0 +1,86 @@
+using Microsoft.EntityFrameworkCore;
+using static Consts;
+
+public static class DataHelpers
+{
+    public static string JoinFileNames(this IEnumerable<IFormFile> files) => files.Select(s => s.FileName).JoinStrings();
+
+    public static string JoinStrings(this IEnumerable<string> files) => String.Join(TOKENS_SEPORATOR, files.Select(s => s));
+
+    public static TimeSpan ParseDuration(this string duration) 
+    {
+        var durArr = duration.Split(TOKENS_SEPORATOR, StringSplitOptions.RemoveEmptyEntries);
+
+        var hours = int.Parse(durArr.First());
+        var minutes = int.Parse(durArr[1]);
+        
+        return new TimeSpan(hours, minutes, 0);
+
+    }
+
+    public static async Task WriteFileToDirectory(this IFormFile file)
+    {
+        var readStream = file.OpenReadStream();
+        var memstream = new MemoryStream();
+        await readStream.CopyToAsync(memstream);
+        await File.WriteAllBytesAsync(Path.Combine("cyber-boom-files", file.FileName), memstream.ToArray());
+    }
+
+    public static async Task WriteFilesToDirectory(this IEnumerable<IFormFile> files)
+    {   
+        foreach(var file in files)
+        {
+            await file.WriteFileToDirectory();
+        }
+        
+    }
+
+    public static async Task<StatsData> GetStatistic(this ApplicationContext applicationContext, string id)
+    {
+        var specialities = await applicationContext.UserWriteToMetings.Where(c => c.UserId == id)
+            .Join(applicationContext.Meetings, 
+                m => m.MeetingId, 
+                m => m.Id,
+                (c,m) => new {
+                    m.Tags,
+                    m.Id,
+                    m.Duration,
+                    m.Time
+                }
+            ).Where(t => DateTime.UtcNow > t.Time).ToArrayAsync();
+
+        var selectedSpecialities = specialities.Select(s => new {
+            s.Id,
+            Tags = s.Tags.Split(TOKENS_SEPORATOR, StringSplitOptions.RemoveEmptyEntries),
+            Duration = s.Duration.ParseDuration().TotalHours
+        });
+
+        var allTags = selectedSpecialities.SelectMany(s => s.Tags).Distinct();
+        var count = selectedSpecialities.Count();
+        
+        StatsData stats = new StatsData{
+            Count = count,
+            Hours = selectedSpecialities.Sum(m => m.Duration) * count
+             
+        };
+        foreach(var tag in allTags)
+        {
+            //StatsData.TagStats
+            var specByTag = selectedSpecialities.Where(f => f.Tags.Contains(tag));
+            var countByTag = specByTag.Count();
+            var hours = selectedSpecialities.Sum(s => s.Duration) * countByTag;
+
+            var stat = new StatsData.TagStats
+            {
+                Count = countByTag,
+                Tag = tag,
+                Hours = hours
+            };
+            stats.StatsByTag.Add(stat);
+        }
+
+       
+        
+        return stats;
+    }
+}