Feat/usage stats collection (#317)

* feat: implement anonymous usage data collection

Co-authored-by: Joseph Milazzo <joseph.v.milazzo@gmail.com>

.gitignore

@@ -454,3 +454,4 @@ cache/
 /API/temp/
 _temp/
 _output/
+stats/

API/Controllers/SettingsController.cs

@@ -90,13 +90,30 @@ namespace API.Controllers
                     Configuration.UpdateLogLevel(Program.GetAppSettingFilename(), updateSettingsDto.LoggingLevel);
                     _unitOfWork.SettingsRepository.Update(setting);
                 }
+                
+                if (setting.Key == ServerSettingKey.AllowStatCollection && updateSettingsDto.AllowStatCollection + "" != setting.Value)
+                {
+                    setting.Value = updateSettingsDto.AllowStatCollection + "";
+                    _unitOfWork.SettingsRepository.Update(setting);
+                    if (!updateSettingsDto.AllowStatCollection)
+                    {
+                        _taskScheduler.CancelStatsTasks();
+                    }
+                    else
+                    {
+                        _taskScheduler.ScheduleStatsTasks();
+                    }
+                }
             }
             
             _configuration.GetSection("Logging:LogLevel:Default").Value = updateSettingsDto.LoggingLevel + "";
             if (!_unitOfWork.HasChanges()) return Ok("Nothing was updated");
 
             if (!_unitOfWork.HasChanges() || !await _unitOfWork.CommitAsync())
+            {
+                await _unitOfWork.RollbackAsync();
                 return BadRequest("There was a critical issue. Please try again.");
+            }
 
             _logger.LogInformation("Server Settings updated");
             _taskScheduler.ScheduleTasks();

API/Controllers/StatsController.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Threading.Tasks;
+using API.DTOs;
+using API.Interfaces.Services;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+
+namespace API.Controllers
+{
+    public class StatsController : BaseApiController
+    {
+        private readonly ILogger<StatsController> _logger;
+        private readonly IStatsService _statsService;
+
+        public StatsController(ILogger<StatsController> logger, IStatsService statsService)
+        {
+            _logger = logger;
+            _statsService = statsService;
+        }
+
+        [AllowAnonymous]
+        [HttpPost("client-info")]
+        public async Task<IActionResult> AddClientInfo([FromBody] ClientInfoDto clientInfoDto)
+        {
+            try
+            {
+                await _statsService.PathData(clientInfoDto);
+
+                return Ok();
+            }
+            catch (Exception e)
+            {
+                _logger.LogError(e, "Error updating the usage statistics");
+                Console.WriteLine(e);
+                throw;
+            }
+        }
+    }
+}

API/DTOs/ClientInfoDto.cs

@@ -0,0 +1,36 @@
+using System;
+
+namespace API.DTOs
+{
+    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 IsTheSameDevice(ClientInfoDto clientInfoDto)
+        {
+            return (clientInfoDto.ScreenResolution ?? "").Equals(ScreenResolution) &&
+                   (clientInfoDto.PlatformType ?? "").Equals(PlatformType) &&
+                   (clientInfoDto.Browser?.Name ?? "").Equals(Browser?.Name) &&
+                   (clientInfoDto.Os?.Name ?? "").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/ServerInfoDto.cs

@@ -0,0 +1,12 @@
+namespace API.DTOs
+{
+    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; }
+    }
+}

API/DTOs/ServerSettingDTO.cs

@@ -7,5 +7,6 @@
         public string LoggingLevel { get; set; }
         public string TaskBackup { get; set; }
         public int Port { get; set; }
+        public bool AllowStatCollection { get; set; }
     }
 }

API/DTOs/UsageInfoDto.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+using API.Entities.Enums;
+
+namespace API.DTOs
+{
+    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/UsageStatisticsDto.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace API.DTOs
+{
+    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);
+        }
+    }
+}

API/Data/FileRepository.cs

@@ -0,0 +1,35 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using API.Interfaces;
+using Microsoft.EntityFrameworkCore;
+
+namespace API.Data
+{
+    public class FileRepository : IFileRepository
+    {
+        private readonly DataContext _dbContext;
+
+        public FileRepository(DataContext context)
+        {
+            _dbContext = context;
+        }
+
+        public async Task<IEnumerable<string>> GetFileExtensions()
+        {
+            var fileExtensions = await _dbContext.MangaFile
+                .AsNoTracking()
+                .Select(x => x.FilePath)
+                .Distinct()
+                .ToArrayAsync();
+
+            var uniqueFileTypes = fileExtensions
+                .Select(Path.GetExtension)
+                .Where(x => x is not null)
+                .Distinct();
+
+            return uniqueFileTypes;
+        }
+    }
+}

API/Data/Seed.cs

@@ -46,6 +46,7 @@ namespace API.Data
                 new () {Key = ServerSettingKey.TaskBackup, Value = "weekly"},
                 new () {Key = ServerSettingKey.BackupDirectory, Value = Path.GetFullPath(Path.Join(Directory.GetCurrentDirectory(), "backups/"))},
                 new () {Key = ServerSettingKey.Port, Value = "5000"}, // Not used from DB, but DB is sync with appSettings.json
+                new () {Key = ServerSettingKey.AllowStatCollection, Value = "true"}, 
             };
 
             foreach (var defaultSetting in defaultSettings)

API/Entities/Enums/ServerSettingKey.cs

@@ -15,6 +15,9 @@ namespace API.Entities.Enums
         [Description("Port")]
         Port = 4,
         [Description("BackupDirectory")]
-        BackupDirectory = 5
+        BackupDirectory = 5,
+        [Description("AllowStatCollection")]
+        AllowStatCollection = 6,
+        
     }
 }

API/Extensions/ApplicationServiceExtensions.cs

@@ -20,6 +20,7 @@ namespace API.Extensions
         public static IServiceCollection AddApplicationServices(this IServiceCollection services, IConfiguration config, IWebHostEnvironment env)
         {
             services.AddAutoMapper(typeof(AutoMapperProfiles).Assembly);
+            services.AddScoped<IStatsService, StatsService>();
             services.AddScoped<ITaskScheduler, TaskScheduler>();
             services.AddScoped<IDirectoryService, DirectoryService>();
             services.AddScoped<ITokenService, TokenService>();
@@ -32,12 +33,8 @@ namespace API.Extensions
             services.AddScoped<ICleanupService, CleanupService>();
             services.AddScoped<IBookService, BookService>();
 
-            
-            services.AddDbContext<DataContext>(options =>
-            {
-                options.UseSqlite(config.GetConnectionString("DefaultConnection"));
-                options.EnableSensitiveDataLogging(env.IsDevelopment() || Configuration.GetLogLevel(Program.GetAppSettingFilename()).Equals("Debug"));
-            });
+            services.AddSqLite(config, env);
+            services.ConfigRepositories();
 
             services.AddLogging(loggingBuilder =>
             {
@@ -48,6 +45,26 @@ namespace API.Extensions
             return services;
         }
 
+        private static IServiceCollection AddSqLite(this IServiceCollection services, IConfiguration config,
+            IWebHostEnvironment env)
+        {
+            services.AddDbContext<DataContext>(options =>
+            {
+                options.UseSqlite(config.GetConnectionString("DefaultConnection"));
+                options.EnableSensitiveDataLogging(env.IsDevelopment() || Configuration.GetLogLevel(Program.GetAppSettingFilename()).Equals("Debug"));
+            });
+
+            return services;
+        }
+
+        private static IServiceCollection ConfigRepositories(this IServiceCollection services)
+        {
+            services.AddScoped<ISettingsRepository, SettingsRepository>();
+            services.AddScoped<IFileRepository, FileRepository>();
+            
+            return services;
+        }
+
         public static IServiceCollection AddStartupTask<T>(this IServiceCollection services)
             where T : class, IStartupTask
             => services.AddTransient<IStartupTask, T>();

API/Extensions/ServiceCollectionExtensions.cs

@@ -1,4 +1,7 @@
-using API.Interfaces.Services;
+using System;
+using API.Interfaces.Services;
+using API.Services.Clients;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace API.Extensions
@@ -8,5 +11,16 @@ namespace API.Extensions
         public static IServiceCollection AddStartupTask<T>(this IServiceCollection services)
             where T : class, IStartupTask
             => services.AddTransient<IStartupTask, T>();
+
+        public static IServiceCollection AddStatsClient(this IServiceCollection services, IConfiguration configuration)
+        {
+            services.AddHttpClient<StatsApiClient>(client =>
+            {
+                client.BaseAddress = new Uri("http://stats.kavitareader.com");
+                client.DefaultRequestHeaders.Add("api-key", "MsnvA2DfQqxSK5jh");
+            });
+
+            return services;
+        }
     }
 }

API/Helpers/Converters/ServerSettingConverter.cs

@@ -30,6 +30,9 @@ namespace API.Helpers.Converters
                     case ServerSettingKey.Port:
                         destination.Port = int.Parse(row.Value);
                         break;
+                    case ServerSettingKey.AllowStatCollection:
+                        destination.AllowStatCollection = bool.Parse(row.Value);
+                        break;
                 }
             }
 

API/Interfaces/IFileRepository.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace API.Interfaces
+{
+    public interface IFileRepository
+    {
+        Task<IEnumerable<string>> GetFileExtensions();
+    }
+}

API/Interfaces/ITaskScheduler.cs

@@ -11,5 +11,7 @@
         void RefreshMetadata(int libraryId, bool forceUpdate = true);
         void CleanupTemp();
         void RefreshSeriesMetadata(int libraryId, int seriesId);
+        void ScheduleStatsTasks();
+        void CancelStatsTasks();
     }
 }

API/Interfaces/Services/IStatsService.cs

@@ -0,0 +1,13 @@
+using System.Threading.Tasks;
+using API.DTOs;
+
+namespace API.Interfaces.Services
+{
+    public interface IStatsService
+    {
+        Task PathData(ClientInfoDto clientInfoDto);
+        Task FinalizeStats();
+        Task CollectRelevantData();
+        Task CollectAndSendStatsData();
+    }
+}

API/Services/Clients/StatsApiClient.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Net.Http;
+using System.Net.Http.Json;
+using System.Threading.Tasks;
+using API.DTOs;
+using Microsoft.Extensions.Logging;
+
+namespace API.Services.Clients
+{
+    public class StatsApiClient
+    {
+        private readonly HttpClient _client;
+        private readonly ILogger<StatsApiClient> _logger;
+
+        public StatsApiClient(HttpClient client, ILogger<StatsApiClient> logger)
+        {
+            _client = client;
+            _logger = logger;
+        }
+
+        public async Task SendDataToStatsServer(UsageStatisticsDto data)
+        {
+            var responseContent = string.Empty;
+
+            try
+            {
+                var response = await _client.PostAsJsonAsync("/api/InstallationStats", data);
+
+                responseContent = await response.Content.ReadAsStringAsync();
+
+                response.EnsureSuccessStatusCode();
+            }
+            catch (HttpRequestException e)
+            {
+                var info = new
+                {
+                    dataSent = data,
+                    response = responseContent
+                };
+
+                _logger.LogError(e, "The StatsServer did not respond successfully. {Content}", info);
+
+                Console.WriteLine(e);
+                throw;
+            }
+            catch (Exception e)
+            {
+                _logger.LogError(e, "An error happened during the request to the Stats Server");
+
+                Console.WriteLine(e);
+                throw;
+            }
+        }
+    }
+}

API/Services/HostedServices/StartupTasksHostedService.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using API.Interfaces;
+using API.Interfaces.Services;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
+namespace API.Services.HostedServices
+{
+    public class StartupTasksHostedService : IHostedService
+    {
+        private readonly IServiceProvider _provider;
+
+        public StartupTasksHostedService(IServiceProvider serviceProvider)
+        {
+            _provider = serviceProvider;
+        }
+
+        public async Task StartAsync(CancellationToken cancellationToken)
+        {
+            using var scope = _provider.CreateScope();
+
+            var taskScheduler = scope.ServiceProvider.GetRequiredService<ITaskScheduler>();
+            taskScheduler.ScheduleTasks();
+
+            try
+            {
+                await ManageStartupStatsTasks(scope, taskScheduler);
+            }
+            catch (Exception e)
+            {
+                //If stats startup fail the user can keep using the app
+            }
+        }
+
+        private async Task ManageStartupStatsTasks(IServiceScope serviceScope, ITaskScheduler taskScheduler)
+        {
+            var settingsRepository = serviceScope.ServiceProvider.GetRequiredService<ISettingsRepository>();
+
+            var settingsDto = await settingsRepository.GetSettingsDtoAsync();
+
+            if (!settingsDto.AllowStatCollection) return;
+
+            taskScheduler.ScheduleStatsTasks();
+
+            var statsService = serviceScope.ServiceProvider.GetRequiredService<IStatsService>();
+
+            await statsService.CollectAndSendStatsData();
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
+    }
+}

API/Services/StatsService.cs

@@ -0,0 +1,186 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+using API.Data;
+using API.DTOs;
+using API.Interfaces;
+using API.Interfaces.Services;
+using API.Services.Clients;
+using Kavita.Common;
+using Kavita.Common.EnvironmentInfo;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+
+namespace API.Services
+{
+    public class StatsService : IStatsService
+    {
+        private const string TempFilePath = "stats/";
+        private const string TempFileName = "app_stats.json";
+
+        private readonly StatsApiClient _client;
+        private readonly DataContext _dbContext;
+        private readonly ILogger<StatsService> _logger;
+        private readonly IFileRepository _fileRepository;
+
+        public StatsService(StatsApiClient client, DataContext dbContext, ILogger<StatsService> logger,
+            IFileRepository fileRepository)
+        {
+            _client = client;
+            _dbContext = dbContext;
+            _logger = logger;
+            _fileRepository = fileRepository;
+        }
+
+        private static string FinalPath => Path.Combine(Directory.GetCurrentDirectory(), TempFilePath, TempFileName);
+        private static bool FileExists => File.Exists(FinalPath);
+
+        public async Task PathData(ClientInfoDto clientInfoDto)
+        {
+            _logger.LogInformation("Pathing client data to the file");
+
+            var statisticsDto = await GetData();
+
+            statisticsDto.AddClientInfo(clientInfoDto);
+
+            await SaveFile(statisticsDto);
+        }
+
+        public async Task CollectRelevantData()
+        {
+            _logger.LogInformation("Collecting data from the server and database");
+
+            _logger.LogInformation("Collecting usage info");
+            var usageInfo = await GetUsageInfo();
+
+            _logger.LogInformation("Collecting server info");
+            var serverInfo = GetServerInfo();
+
+            await PathData(serverInfo, usageInfo);
+        }
+
+        public async Task FinalizeStats()
+        {
+            try
+            {
+                _logger.LogInformation("Finalizing Stats collection flow");
+
+                var data = await GetExistingData<UsageStatisticsDto>();
+
+                _logger.LogInformation("Sending data to the Stats server");
+                await _client.SendDataToStatsServer(data);
+
+                _logger.LogInformation("Deleting the file from disk");
+                if (FileExists) File.Delete(FinalPath);
+            }
+            catch (Exception e)
+            {
+                _logger.LogError("Error Finalizing Stats collection flow", e);
+                throw;
+            }
+        }
+
+        public async Task CollectAndSendStatsData()
+        {
+            await CollectRelevantData();
+            await FinalizeStats();
+        }
+
+        private async Task PathData(ServerInfoDto serverInfoDto, UsageInfoDto usageInfoDto)
+        {
+            _logger.LogInformation("Pathing server and usage info to the file");
+
+            var data = await GetData();
+
+            data.ServerInfo = serverInfoDto;
+            data.UsageInfo = usageInfoDto;
+
+            data.MarkAsUpdatedNow();
+
+            await SaveFile(data);
+        }
+
+        private async ValueTask<UsageStatisticsDto> GetData()
+        {
+            if (!FileExists) return new UsageStatisticsDto {InstallId = HashUtil.AnonymousToken()};
+
+            return await GetExistingData<UsageStatisticsDto>();
+        }
+
+        private async Task<UsageInfoDto> GetUsageInfo()
+        {
+            var usersCount = await _dbContext.Users.CountAsync();
+
+            var libsCountByType = await _dbContext.Library
+                .AsNoTracking()
+                .GroupBy(x => x.Type)
+                .Select(x => new LibInfo {Type = x.Key, Count = x.Count()})
+                .ToArrayAsync();
+
+            var uniqueFileTypes = await _fileRepository.GetFileExtensions();
+
+            var usageInfo = new UsageInfoDto
+            {
+                UsersCount = usersCount,
+                LibraryTypesCreated = libsCountByType,
+                FileTypes = uniqueFileTypes
+            };
+
+            return usageInfo;
+        }
+
+        private static ServerInfoDto GetServerInfo()
+        {
+            var serverInfo = new ServerInfoDto
+            {
+                Os = RuntimeInformation.OSDescription,
+                DotNetVersion = Environment.Version.ToString(),
+                RunTimeVersion = RuntimeInformation.FrameworkDescription,
+                KavitaVersion = BuildInfo.Version.ToString(),
+                Culture = Thread.CurrentThread.CurrentCulture.Name,
+                BuildBranch = BuildInfo.Branch
+            };
+
+            return serverInfo;
+        }
+
+        private async Task<T> GetExistingData<T>()
+        {
+            _logger.LogInformation("Fetching existing data from file");
+            var existingDataJson = await GetFileDataAsString();
+
+            _logger.LogInformation("Deserializing data from file to object");
+            var existingData = JsonSerializer.Deserialize<T>(existingDataJson);
+
+            return existingData;
+        }
+
+        private async Task<string> GetFileDataAsString()
+        {
+            _logger.LogInformation("Reading file from disk");
+            return await File.ReadAllTextAsync(FinalPath);
+        }
+
+        private async Task SaveFile(UsageStatisticsDto statisticsDto)
+        {
+            _logger.LogInformation("Saving file");
+
+            var finalDirectory = FinalPath.Replace(TempFileName, string.Empty);
+            if (!Directory.Exists(finalDirectory))
+            {
+                _logger.LogInformation("Creating tmp directory");
+                Directory.CreateDirectory(finalDirectory);
+            }
+
+            _logger.LogInformation("Serializing data to write");
+            var dataJson = JsonSerializer.Serialize(statisticsDto);
+
+            _logger.LogInformation("Writing file to the disk");
+            await File.WriteAllTextAsync(FinalPath, dataJson);
+        }
+    }
+}

API/Services/TaskScheduler.cs

@@ -19,11 +19,14 @@ namespace API.Services
         private readonly IBackupService _backupService;
         private readonly ICleanupService _cleanupService;
 
+        private readonly IStatsService _statsService;
+
         public static BackgroundJobServer Client => new BackgroundJobServer();
 
 
         public TaskScheduler(ICacheService cacheService, ILogger<TaskScheduler> logger, IScannerService scannerService, 
-            IUnitOfWork unitOfWork, IMetadataService metadataService, IBackupService backupService, ICleanupService cleanupService)
+            IUnitOfWork unitOfWork, IMetadataService metadataService, IBackupService backupService,
+            ICleanupService cleanupService, IStatsService statsService)
         {
             _cacheService = cacheService;
             _logger = logger;
@@ -32,6 +35,7 @@ namespace API.Services
             _metadataService = metadataService;
             _backupService = backupService;
             _cleanupService = cleanupService;
+            _statsService = statsService;
         }
 
         public void ScheduleTasks()
@@ -65,6 +69,33 @@ namespace API.Services
             RecurringJob.AddOrUpdate("cleanup", () => _cleanupService.Cleanup(), Cron.Daily);
         }
 
+        #region StatsTasks
+
+        private const string SendDataTask = "finalize-stats";
+        public void ScheduleStatsTasks()
+        {
+            var allowStatCollection = bool.Parse(Task.Run(() => _unitOfWork.SettingsRepository.GetSettingAsync(ServerSettingKey.AllowStatCollection)).GetAwaiter().GetResult().Value);
+            if (!allowStatCollection)
+            {
+                _logger.LogDebug("User has opted out of stat collection, not registering tasks");
+                return;
+            }
+            
+            _logger.LogDebug("Adding StatsTasks");
+
+            _logger.LogDebug("Scheduling Send data to the Stats server {Setting}", nameof(Cron.Daily));
+            RecurringJob.AddOrUpdate(SendDataTask, () => _statsService.CollectAndSendStatsData(), Cron.Daily);
+        }
+
+        public void CancelStatsTasks()
+        {
+            _logger.LogDebug("Cancelling/Removing StatsTasks");
+
+            RecurringJob.RemoveIfExists(SendDataTask);
+        }
+
+        #endregion
+
         public void ScanLibrary(int libraryId, bool forceUpdate = false)
         {
             _logger.LogInformation("Enqueuing library scan for: {LibraryId}", libraryId);

API/Startup.cs

@@ -2,9 +2,9 @@ using System;
 using System.IO.Compression;
 using System.Linq;
 using API.Extensions;
-using API.Interfaces;
 using API.Middleware;
 using API.Services;
+using API.Services.HostedServices;
 using Hangfire;
 using Hangfire.MemoryStorage;
 using Kavita.Common.EnvironmentInfo;
@@ -64,6 +64,8 @@ namespace API
             
             services.AddResponseCaching();
             
+            services.AddStatsClient(_config);
+
             services.AddHangfire(configuration => configuration
                 .UseSimpleAssemblyNameTypeSerializer()
                 .UseRecommendedSerializerSettings()
@@ -71,11 +73,15 @@ namespace API
 
             // Add the processing server as IHostedService
             services.AddHangfireServer();
+
+            // Add IHostedService for startup tasks
+            // Any services that should be bootstrapped go here
+            services.AddHostedService<StartupTasksHostedService>();
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IBackgroundJobClient backgroundJobs, IWebHostEnvironment env, 
-            IHostApplicationLifetime applicationLifetime, ITaskScheduler taskScheduler)
+            IHostApplicationLifetime applicationLifetime)
         {
             app.UseMiddleware<ExceptionMiddleware>();
 
@@ -137,9 +143,6 @@ namespace API
             {
                 Console.WriteLine($"Kavita - v{BuildInfo.Version}");
             });
-
-            // Any services that should be bootstrapped go here
-            taskScheduler.ScheduleTasks();
         }
         
         private void OnShutdown()

API/appsettings.Development.json

@@ -3,6 +3,11 @@
     "DefaultConnection": "Data source=kavita.db"
   },
   "TokenKey": "super secret unguessable key",
+  "StatsOptions": {
+    "ServerUrl": "http://localhost:5002",
+    "ServerSecret": "here's where the api key goes",
+    "SendDataAt": "23:50"
+  },
   "Logging": {
     "LogLevel": {
       "Default": "Debug",