Extra Stat collection (#407)

* Cleaned up error interceptor to avoid sending auth errors (when a 500 occurs) to sentry as auth errors aren't issues.

* Added extra stat collection

* Fixed a bad gitignore which ignored anything in a stats directory

API/DTOs/Stats/ClientInfoDto.cs

@@ -0,0 +1,37 @@
+using System;
+
+namespace API.DTOs.Stats
+{
+    public class ClientInfoDto
+    {
+        public ClientInfoDto()
+        {
+            CollectedAt = DateTime.UtcNow;
+        }
+
+        public string KavitaUiVersion { get; set; }
+        public string ScreenResolution { get; set; }
+        public string PlatformType { get; set; }
+        public DetailsVersion Browser { get; set; }
+        public DetailsVersion Os { get; set; }
+
+        public DateTime? CollectedAt { get; set; }
+        public bool UsingDarkTheme { get; set; }
+
+        public bool IsTheSameDevice(ClientInfoDto clientInfoDto)
+        {
+            return (clientInfoDto.ScreenResolution ?? string.Empty).Equals(ScreenResolution) &&
+                   (clientInfoDto.PlatformType ?? string.Empty).Equals(PlatformType) &&
+                   (clientInfoDto.Browser?.Name ?? string.Empty).Equals(Browser?.Name) &&
+                   (clientInfoDto.Os?.Name ?? string.Empty).Equals(Os?.Name) &&
+                   clientInfoDto.CollectedAt.GetValueOrDefault().ToString("yyyy-MM-dd")
+                       .Equals(CollectedAt.GetValueOrDefault().ToString("yyyy-MM-dd"));
+        }
+    }
+
+    public class DetailsVersion
+    {
+        public string Name { get; set; }
+        public string Version { get; set; }
+    }
+}

API/DTOs/Stats/ServerInfoDto.cs

@@ -0,0 +1,14 @@
+namespace API.DTOs.Stats
+{
+    public class ServerInfoDto
+    {
+        public string Os { get; set; }
+        public string DotNetVersion { get; set; }
+        public string RunTimeVersion { get; set; }
+        public string KavitaVersion { get; set; }
+        public string BuildBranch { get; set; }
+        public string Culture { get; set; }
+        public bool IsDocker { get; set; }
+        public int NumOfCores { get; set; }
+    }
+}

API/DTOs/Stats/UsageInfoDto.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+using API.Entities.Enums;
+
+namespace API.DTOs.Stats
+{
+    public class UsageInfoDto
+    {
+        public UsageInfoDto()
+        {
+            FileTypes = new HashSet<string>();
+            LibraryTypesCreated = new HashSet<LibInfo>();
+        }
+
+        public int UsersCount { get; set; }
+        public IEnumerable<string> FileTypes { get; set; }
+        public IEnumerable<LibInfo> LibraryTypesCreated { get; set; }
+    }
+
+    public class LibInfo
+    {
+        public LibraryType Type { get; set; }
+        public int Count { get; set; }
+    }
+}

API/DTOs/Stats/UsageStatisticsDto.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace API.DTOs.Stats
+{
+    public class UsageStatisticsDto
+    {
+        public UsageStatisticsDto()
+        {
+            MarkAsUpdatedNow();
+            ClientsInfo = new List<ClientInfoDto>();
+        }
+
+        public string InstallId { get; set; }
+        public DateTime LastUpdate { get; set; }
+        public UsageInfoDto UsageInfo { get; set; }
+        public ServerInfoDto ServerInfo { get; set; }
+        public List<ClientInfoDto> ClientsInfo { get; set; }
+
+        public void MarkAsUpdatedNow()
+        {
+            LastUpdate = DateTime.UtcNow;
+        }
+
+        public void AddClientInfo(ClientInfoDto clientInfoDto)
+        {
+            if (ClientsInfo.Any(x => x.IsTheSameDevice(clientInfoDto))) return;
+
+            ClientsInfo.Add(clientInfoDto);
+        }
+    }
+}