Add one-click installation script and fix MetricsService

README.md

@@ -9,44 +9,51 @@ A C# application for managing RSS feeds and automatically downloading torrents v
 - Manage Transmission torrents through a user-friendly web interface
 - Post-processing of completed downloads (extract archives, organize media files)
 - Responsive web UI for desktop and mobile use
+- Database integration for historical data and statistics
+- Dashboard with metrics and download history
 
 ## Requirements
 
-- .NET 7.0 or higher
+- Linux OS (Debian, Ubuntu, or derivatives)
 - Transmission BitTorrent client (with remote access enabled)
-- Linux OS (tested on Ubuntu, Debian, Fedora, Arch)
-- Dependencies: unzip, p7zip, unrar (for post-processing)
 
-## Installation
+## One-Click Installation
 
-### Automatic Installation
+Install Transmission RSS Manager with a single command:
-
-Run the installer script:
 
 ```bash
-curl -sSL https://raw.githubusercontent.com/yourusername/transmission-rss-manager/main/install-script.sh | bash
+wget -O - https://git.powerdata.dk/masterdraco/Torrent-Manager/raw/branch/main/TransmissionRssManager/install.sh | sudo bash
 ```
 
-Or if you've cloned the repository:
+This command:
+1. Downloads the installer script
+2. Installs all dependencies (.NET SDK, PostgreSQL, etc.)
+3. Sets up the database
+4. Builds and configures the application
+5. Creates and starts the system service
+
+After installation, access the web interface at: http://localhost:5000
+
+## Alternative Installation Methods
+
+If you prefer to examine the install script before running it, you can:
 
 ```bash
-./src/Infrastructure/install-script.sh
+# Download the install script
+wget https://git.powerdata.dk/masterdraco/Torrent-Manager/raw/branch/main/TransmissionRssManager/install.sh
+
+# Review it
+less install.sh
+
+# Run it
+sudo bash install.sh
 ```
 
-### Manual Installation
+Or if you've already cloned the repository:
 
-1. Install .NET 7.0 SDK from [Microsoft's website](https://dotnet.microsoft.com/download)
-2. Clone the repository:
 ```bash
-   git clone https://github.com/yourusername/transmission-rss-manager.git
+sudo bash install.sh
-   cd transmission-rss-manager
 ```
-3. Build and run the application:
-   ```bash
-   dotnet build -c Release
-   dotnet run
-   ```
-4. Open a web browser and navigate to: `http://localhost:5000`
 
 ## Configuration
 

install.sh

@@ -0,0 +1,220 @@
+#!/bin/bash
+
+# Transmission RSS Manager One-Click Installer
+# This script downloads and installs Transmission RSS Manager with all dependencies
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# Print section header
+print_section() {
+  echo -e "\n${GREEN}===== $1 =====${NC}"
+}
+
+# Error handling
+set -e
+trap 'echo -e "${RED}An error occurred. Installation failed.${NC}"; exit 1' ERR
+
+print_section "Transmission RSS Manager Installer"
+echo -e "This script will install Transmission RSS Manager and all required components."
+
+# Check if running as root (sudo)
+if [ "$EUID" -ne 0 ]; then
+  echo -e "${YELLOW}Please run this script with sudo:${NC}"
+  echo -e "${YELLOW}sudo bash install.sh${NC}"
+  exit 1
+fi
+
+# Detect Linux distribution
+if [ -f /etc/os-release ]; then
+  . /etc/os-release
+  DISTRO=$ID
+else
+  echo -e "${RED}Cannot detect Linux distribution. This script supports Debian, Ubuntu, and their derivatives.${NC}"
+  exit 1
+fi
+
+print_section "Installing Dependencies"
+
+# Update package lists
+echo "Updating package lists..."
+apt-get update
+
+# Install basic dependencies
+echo "Installing required packages..."
+apt-get install -y wget curl unzip git
+
+# Install .NET SDK
+print_section "Installing .NET SDK"
+if ! command -v dotnet &> /dev/null; then
+  echo "Installing .NET SDK 7.0..."
+  
+  # Add Microsoft package repository
+  wget -O packages-microsoft-prod.deb https://packages.microsoft.com/config/$DISTRO/$VERSION_ID/packages-microsoft-prod.deb
+  dpkg -i packages-microsoft-prod.deb
+  rm packages-microsoft-prod.deb
+  
+  # Install .NET SDK
+  apt-get update
+  apt-get install -y apt-transport-https
+  apt-get update
+  apt-get install -y dotnet-sdk-7.0
+else
+  echo ".NET SDK is already installed."
+fi
+
+# Verify .NET installation
+dotnet --version
+if [ $? -ne 0 ]; then
+  echo -e "${RED}.NET SDK installation failed.${NC}"
+  exit 1
+fi
+
+# Install PostgreSQL
+print_section "Installing PostgreSQL"
+if ! command -v psql &> /dev/null; then
+  echo "Installing PostgreSQL..."
+  apt-get install -y postgresql postgresql-contrib
+else
+  echo "PostgreSQL is already installed."
+fi
+
+# Start PostgreSQL service
+systemctl start postgresql
+systemctl enable postgresql
+
+# Install Entity Framework Core tools
+print_section "Installing EF Core tools"
+if ! su - postgres -c "dotnet tool list -g" | grep "dotnet-ef" > /dev/null; then
+  echo "Installing Entity Framework Core tools..."
+  su - postgres -c "dotnet tool install --global dotnet-ef --version 7.0.15"
+else
+  echo "Entity Framework Core tools are already installed."
+fi
+
+# Create installation directory
+print_section "Setting up application"
+INSTALL_DIR="/opt/transmission-rss-manager"
+mkdir -p $INSTALL_DIR
+
+# Download or clone the application
+if [ ! -d "$INSTALL_DIR/.git" ]; then
+  echo "Downloading application files..."
+  # Clone the repository
+  git clone https://git.powerdata.dk/masterdraco/Torrent-Manager.git $INSTALL_DIR
+else
+  echo "Updating existing installation..."
+  cd $INSTALL_DIR
+  git pull
+fi
+
+# Setup database
+print_section "Setting up database"
+DB_NAME="torrentmanager"
+DB_USER="torrentmanager"
+DB_PASSWORD=$(tr -dc 'A-Za-z0-9' < /dev/urandom | head -c 16)
+
+# Check if database exists
+DB_EXISTS=$(su - postgres -c "psql -tAc \"SELECT 1 FROM pg_database WHERE datname='$DB_NAME'\"")
+if [ "$DB_EXISTS" != "1" ]; then
+  echo "Creating database and user..."
+  # Create database and user
+  su - postgres -c "psql -c \"CREATE USER $DB_USER WITH PASSWORD '$DB_PASSWORD';\""
+  su - postgres -c "psql -c \"CREATE DATABASE $DB_NAME OWNER $DB_USER;\""
+  su - postgres -c "psql -c \"GRANT ALL PRIVILEGES ON DATABASE $DB_NAME TO $DB_USER;\""
+else
+  echo "Database already exists."
+fi
+
+# Save connection string
+CONFIG_DIR="/etc/transmission-rss-manager"
+mkdir -p $CONFIG_DIR
+echo '{
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=localhost;Database='$DB_NAME';Username='$DB_USER';Password='$DB_PASSWORD'"
+  }
+}' > "$CONFIG_DIR/appsettings.json"
+
+# Set proper permissions
+chown -R postgres:postgres "$CONFIG_DIR"
+chmod 750 "$CONFIG_DIR"
+chmod 640 "$CONFIG_DIR/appsettings.json"
+
+# Build and deploy the application
+print_section "Building application"
+# Check if TransmissionRssManager directory exists directly or as a subdirectory
+if [ -d "$INSTALL_DIR/TransmissionRssManager" ]; then
+  PROJECT_DIR="$INSTALL_DIR/TransmissionRssManager"
+elif [ -f "$INSTALL_DIR/TransmissionRssManager.csproj" ]; then
+  PROJECT_DIR="$INSTALL_DIR"
+else
+  # Look for the .csproj file
+  PROJECT_DIR=$(find $INSTALL_DIR -name "*.csproj" -exec dirname {} \; | head -n 1)
+fi
+
+echo "Building project from: $PROJECT_DIR"
+cd "$PROJECT_DIR"
+dotnet restore
+dotnet build -c Release
+dotnet publish -c Release -o $INSTALL_DIR/publish
+
+# Copy configuration
+cp "$CONFIG_DIR/appsettings.json" "$INSTALL_DIR/publish/appsettings.json"
+
+# Run migrations
+print_section "Running database migrations"
+cd "$PROJECT_DIR"
+dotnet ef database update
+
+# Create systemd service
+print_section "Creating systemd service"
+# Find the main application DLL
+APP_DLL=$(find $INSTALL_DIR/publish -name "*.dll" | head -n 1)
+APP_NAME=$(basename "$APP_DLL" .dll)
+
+echo "[Unit]
+Description=Transmission RSS Manager
+After=network.target postgresql.service
+
+[Service]
+WorkingDirectory=$INSTALL_DIR/publish
+ExecStart=/usr/bin/dotnet $APP_DLL
+Restart=always
+RestartSec=10
+SyslogIdentifier=transmission-rss-manager
+User=postgres
+Environment=ASPNETCORE_ENVIRONMENT=Production
+Environment=DOTNET_PRINT_TELEMETRY_MESSAGE=false
+
+[Install]
+WantedBy=multi-user.target" > /etc/systemd/system/transmission-rss-manager.service
+
+# Reload systemd, enable and start service
+systemctl daemon-reload
+systemctl enable transmission-rss-manager
+systemctl start transmission-rss-manager
+
+# Create shortcut
+print_section "Creating application shortcut"
+echo "[Desktop Entry]
+Name=Transmission RSS Manager
+Comment=RSS Feed Manager for Transmission BitTorrent Client
+Exec=xdg-open http://localhost:5000
+Icon=transmission
+Terminal=false
+Type=Application
+Categories=Network;P2P;" > /usr/share/applications/transmission-rss-manager.desktop
+
+# Installation complete
+print_section "Installation Complete!"
+echo -e "${GREEN}Transmission RSS Manager has been successfully installed!${NC}"
+echo -e "Web interface: ${YELLOW}http://localhost:5000${NC}"
+echo -e "Database username: ${YELLOW}$DB_USER${NC}"
+echo -e "Database password: ${YELLOW}$DB_PASSWORD${NC}"
+echo -e "Configuration file: ${YELLOW}$CONFIG_DIR/appsettings.json${NC}"
+echo -e "Application files: ${YELLOW}$INSTALL_DIR${NC}"
+echo -e "\nTo check service status: ${YELLOW}systemctl status transmission-rss-manager${NC}"
+echo -e "View logs: ${YELLOW}journalctl -u transmission-rss-manager${NC}"

src/Services/MetricsService.cs

@@ -0,0 +1,746 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using TransmissionRssManager.Core;
+using TransmissionRssManager.Data.Repositories;
+
+namespace TransmissionRssManager.Services
+{
+    public interface IMetricsService
+    {
+        Task<DashboardStats> GetDashboardStatsAsync();
+        Task<List<HistoricalDataPoint>> GetDownloadHistoryAsync(int days = 30);
+        Task<List<CategoryStats>> GetCategoryStatsAsync();
+        Task<SystemStatus> GetSystemStatusAsync();
+        Task<Dictionary<string, long>> EstimateDiskUsageAsync();
+        Task<Dictionary<string, double>> GetPerformanceMetricsAsync();
+    }
+    
+    public class MetricsService : IMetricsService
+    {
+        private readonly ILogger<MetricsService> _logger;
+        private readonly ITransmissionClient _transmissionClient;
+        private readonly IRepository<TransmissionRssManager.Data.Models.RssFeed> _feedRepository;
+        private readonly IRepository<TransmissionRssManager.Data.Models.RssFeedItem> _feedItemRepository;
+        private readonly IRepository<TransmissionRssManager.Data.Models.Torrent> _torrentRepository;
+        private readonly IRepository<TransmissionRssManager.Data.Models.SystemLogEntry> _logRepository;
+        private readonly ILoggingService _loggingService;
+        private readonly IConfigService _configService;
+        
+        // Helper method to map database Torrent model to Core.TorrentInfo
+        private Core.TorrentInfo MapToTorrentInfo(TransmissionRssManager.Data.Models.Torrent torrent)
+        {
+            return new Core.TorrentInfo
+            {
+                Id = torrent.Id,
+                Name = torrent.Name,
+                Status = torrent.Status,
+                PercentDone = torrent.PercentDone,
+                TotalSize = torrent.TotalSize,
+                DownloadDir = torrent.DownloadDirectory ?? "",
+                AddedDate = torrent.AddedOn,
+                CompletedDate = torrent.CompletedOn,
+                DownloadedEver = torrent.DownloadedEver,
+                UploadedEver = torrent.UploadedEver,
+                UploadRatio = (int)torrent.UploadRatio,
+                ErrorString = torrent.ErrorMessage ?? "",
+                HashString = torrent.Hash,
+                PeersConnected = torrent.PeersConnected,
+                DownloadSpeed = torrent.DownloadSpeed,
+                UploadSpeed = torrent.UploadSpeed,
+                Category = torrent.Category ?? "",
+                HasMetadata = torrent.HasMetadata,
+                TransmissionInstance = torrent.TransmissionInstance ?? "default",
+                SourceFeedId = torrent.RssFeedItemId?.ToString() ?? "",
+                IsPostProcessed = torrent.PostProcessed
+            };
+        }
+        
+        // Helper method to map database RssFeed model to Core.RssFeed
+        private Core.RssFeed MapToRssFeed(TransmissionRssManager.Data.Models.RssFeed feed)
+        {
+            var result = new Core.RssFeed
+            {
+                Id = feed.Id.ToString(),
+                Name = feed.Name,
+                Url = feed.Url,
+                AutoDownload = feed.Enabled,
+                LastChecked = feed.LastCheckedAt,
+                TransmissionInstanceId = feed.TransmissionInstanceId ?? "default",
+                Schedule = feed.Schedule,
+                Enabled = feed.Enabled,
+                MaxHistoryItems = feed.MaxHistoryItems,
+                DefaultCategory = feed.DefaultCategory ?? "",
+                ErrorCount = feed.ErrorCount,
+                LastError = feed.LastError != null ? feed.LastCheckedAt : null,
+                LastErrorMessage = feed.LastError
+            };
+            
+            // Add rules to the feed
+            if (feed.Rules != null)
+            {
+                foreach (var rule in feed.Rules)
+                {
+                    result.AdvancedRules.Add(new Core.RssFeedRule
+                    {
+                        Id = rule.Id.ToString(),
+                        Name = rule.Name,
+                        Pattern = rule.IncludePattern ?? "",
+                        IsRegex = rule.UseRegex,
+                        IsEnabled = rule.Enabled,
+                        IsCaseSensitive = false, // Default value as this field doesn't exist in the DB model
+                        Category = rule.CustomSavePath ?? "",
+                        Priority = rule.Priority,
+                        Action = rule.EnablePostProcessing ? "process" : "download",
+                        DestinationFolder = rule.CustomSavePath ?? ""
+                    });
+                }
+            }
+            
+            return result;
+        }
+        
+        public MetricsService(
+            ILogger<MetricsService> logger,
+            ITransmissionClient transmissionClient,
+            IRepository<TransmissionRssManager.Data.Models.RssFeed> feedRepository,
+            IRepository<TransmissionRssManager.Data.Models.RssFeedItem> feedItemRepository,
+            IRepository<TransmissionRssManager.Data.Models.Torrent> torrentRepository,
+            IRepository<TransmissionRssManager.Data.Models.SystemLogEntry> logRepository,
+            ILoggingService loggingService,
+            IConfigService configService)
+        {
+            _logger = logger;
+            _transmissionClient = transmissionClient;
+            _feedRepository = feedRepository;
+            _feedItemRepository = feedItemRepository;
+            _torrentRepository = torrentRepository;
+            _logRepository = logRepository;
+            _loggingService = loggingService;
+            _configService = configService;
+        }
+        
+        public async Task<DashboardStats> GetDashboardStatsAsync()
+        {
+            try
+            {
+                var now = DateTime.UtcNow;
+                var today = new DateTime(now.Year, now.Month, now.Day, 0, 0, 0, DateTimeKind.Utc);
+                
+                // Combine data from both Transmission and database
+                // Get active torrents from Transmission for real-time data
+                var transmissionTorrents = await _transmissionClient.GetTorrentsAsync();
+                
+                // Get database torrent data for historical information
+                var dbTorrents = await _torrentRepository.Query().ToListAsync();
+                
+                // Count active downloads (status is downloading)
+                var activeDownloads = transmissionTorrents.Count(t => t.Status == "Downloading");
+                
+                // Count seeding torrents (status is seeding)
+                var seedingTorrents = transmissionTorrents.Count(t => t.Status == "Seeding");
+                
+                // Get active feeds count
+                var activeFeeds = await _feedRepository.Query()
+                    .Where(f => f.Enabled)
+                    .CountAsync();
+                
+                // Get completed downloads today
+                var completedToday = dbTorrents
+                    .Count(t => t.CompletedOn.HasValue && t.CompletedOn.Value >= today);
+                
+                // Get added today
+                var addedToday = dbTorrents
+                    .Count(t => t.AddedOn >= today);
+                
+                // Get matched count (all time)
+                var matchedCount = await _feedItemRepository.Query()
+                    .Where(i => i.MatchedRuleId != null)
+                    .CountAsync();
+                
+                // Calculate download/upload speeds from Transmission (real-time data)
+                double downloadSpeed = transmissionTorrents.Sum(t => t.DownloadSpeed);
+                double uploadSpeed = transmissionTorrents.Sum(t => t.UploadSpeed);
+                
+                // Update database objects with transmission data
+                // This helps keep database in sync with transmission for metrics
+                foreach (var transmissionTorrent in transmissionTorrents)
+                {
+                    var dbTorrent = dbTorrents.FirstOrDefault(t => t.TransmissionId == transmissionTorrent.Id);
+                    if (dbTorrent != null)
+                    {
+                        // Update database with current speeds and status for the background service to store
+                        dbTorrent.DownloadSpeed = transmissionTorrent.DownloadSpeed;
+                        dbTorrent.UploadSpeed = transmissionTorrent.UploadSpeed;
+                        dbTorrent.Status = transmissionTorrent.Status;
+                        dbTorrent.PercentDone = transmissionTorrent.PercentDone;
+                        dbTorrent.DownloadedEver = transmissionTorrent.DownloadedEver;
+                        dbTorrent.UploadedEver = transmissionTorrent.UploadedEver;
+                        dbTorrent.PeersConnected = transmissionTorrent.PeersConnected;
+                        
+                        // Update the database object
+                        await _torrentRepository.UpdateAsync(dbTorrent);
+                    }
+                }
+                
+                // Save the changes
+                await _torrentRepository.SaveChangesAsync();
+                
+                // Calculate total downloaded and uploaded
+                // Use Transmission for active torrents (more accurate) and database for historical torrents
+                var totalDownloaded = transmissionTorrents.Sum(t => t.DownloadedEver);
+                var totalUploaded = transmissionTorrents.Sum(t => t.UploadedEver);
+                
+                // Add historical data from database for torrents that are no longer in Transmission
+                var transmissionIds = transmissionTorrents.Select(t => t.Id).ToHashSet();
+                var historicalTorrents = dbTorrents.Where(t => t.TransmissionId.HasValue && !transmissionIds.Contains(t.TransmissionId.Value));
+                totalDownloaded += historicalTorrents.Sum(t => t.DownloadedEver);
+                totalUploaded += historicalTorrents.Sum(t => t.UploadedEver);
+                
+                return new DashboardStats
+                {
+                    ActiveDownloads = activeDownloads,
+                    SeedingTorrents = seedingTorrents,
+                    ActiveFeeds = activeFeeds,
+                    CompletedToday = completedToday,
+                    AddedToday = addedToday,
+                    FeedsCount = await _feedRepository.Query().CountAsync(),
+                    MatchedCount = matchedCount,
+                    DownloadSpeed = downloadSpeed,
+                    UploadSpeed = uploadSpeed,
+                    TotalDownloaded = totalDownloaded,
+                    TotalUploaded = totalUploaded
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error getting dashboard stats");
+                _loggingService.Log(
+                    LogLevel.Error,
+                    $"Error getting dashboard stats: {ex.Message}",
+                    "MetricsService",
+                    new Dictionary<string, string> {
+                        { "ErrorMessage", ex.Message },
+                        { "StackTrace", ex.StackTrace }
+                    }
+                );
+                
+                return new DashboardStats();
+            }
+        }
+        
+        public async Task<List<HistoricalDataPoint>> GetDownloadHistoryAsync(int days = 30)
+        {
+            try
+            {
+                var result = new List<HistoricalDataPoint>();
+                var endDate = DateTime.UtcNow;
+                var startDate = endDate.AddDays(-days);
+                
+                // Get download history from the database for added torrents
+                var addedTorrents = await _torrentRepository.Query()
+                    .Where(t => t.AddedOn >= startDate && t.AddedOn <= endDate)
+                    .ToListAsync();
+                
+                // Get completed torrents history
+                var completedTorrents = await _torrentRepository.Query()
+                    .Where(t => t.CompletedOn.HasValue && t.CompletedOn.Value >= startDate && t.CompletedOn.Value <= endDate)
+                    .ToListAsync();
+                
+                // Group by date added
+                var groupedByAdded = addedTorrents
+                    .GroupBy(t => new DateTime(t.AddedOn.Year, t.AddedOn.Month, t.AddedOn.Day, 0, 0, 0, DateTimeKind.Utc))
+                    .Select(g => new {
+                        Date = g.Key,
+                        Count = g.Count(),
+                        TotalSize = g.Sum(t => t.TotalSize)
+                    })
+                    .OrderBy(g => g.Date)
+                    .ToList();
+                
+                // Group by date completed
+                var groupedByCompleted = completedTorrents
+                    .GroupBy(t => new DateTime(t.CompletedOn.Value.Year, t.CompletedOn.Value.Month, t.CompletedOn.Value.Day, 0, 0, 0, DateTimeKind.Utc))
+                    .Select(g => new {
+                        Date = g.Key,
+                        Count = g.Count(),
+                        TotalSize = g.Sum(t => t.TotalSize)
+                    })
+                    .OrderBy(g => g.Date)
+                    .ToList();
+                
+                // Fill in missing dates
+                for (var date = startDate; date <= endDate; date = date.AddDays(1))
+                {
+                    var day = new DateTime(date.Year, date.Month, date.Day, 0, 0, 0, DateTimeKind.Utc);
+                    
+                    // Get data for this day
+                    var addedData = groupedByAdded.FirstOrDefault(g => g.Date == day);
+                    var completedData = groupedByCompleted.FirstOrDefault(g => g.Date == day);
+                    
+                    // Create data point with added count and size
+                    result.Add(new HistoricalDataPoint
+                    {
+                        Date = day,
+                        Count = addedData?.Count ?? 0, // Use added count by default
+                        TotalSize = addedData?.TotalSize ?? 0,
+                        CompletedCount = completedData?.Count ?? 0,
+                        CompletedSize = completedData?.TotalSize ?? 0
+                    });
+                }
+                
+                return result;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error getting download history");
+                _loggingService.Log(
+                    LogLevel.Error,
+                    $"Error getting download history: {ex.Message}",
+                    "MetricsService",
+                    new Dictionary<string, string> {
+                        { "ErrorMessage", ex.Message },
+                        { "StackTrace", ex.StackTrace },
+                        { "Days", days.ToString() }
+                    }
+                );
+                
+                return new List<HistoricalDataPoint>();
+            }
+        }
+        
+        public async Task<List<CategoryStats>> GetCategoryStatsAsync()
+        {
+            try
+            {
+                // Get torrents with categories from database
+                var dbTorrents = await _torrentRepository.Query()
+                    .Where(t => t.Category != null)
+                    .ToListAsync();
+                
+                // Get torrents from Transmission for real-time data
+                var transmissionTorrents = await _transmissionClient.GetTorrentsAsync();
+                
+                // Map Transmission torrents to dictionary by hash for quick lookup
+                var transmissionTorrentsByHash = transmissionTorrents
+                    .Where(t => !string.IsNullOrEmpty(t.HashString))
+                    .ToDictionary(t => t.HashString, t => t);
+                
+                // Create a list to store category stats with combined data
+                var categoryStats = new Dictionary<string, CategoryStats>();
+                
+                // Process database torrents first
+                foreach (var torrent in dbTorrents)
+                {
+                    var category = torrent.Category ?? "Uncategorized";
+                    
+                    if (!categoryStats.TryGetValue(category, out var stats))
+                    {
+                        stats = new CategoryStats
+                        {
+                            Category = category,
+                            Count = 0,
+                            TotalSize = 0,
+                            ActiveCount = 0,
+                            CompletedCount = 0,
+                            DownloadSpeed = 0,
+                            UploadSpeed = 0
+                        };
+                        categoryStats[category] = stats;
+                    }
+                    
+                    stats.Count++;
+                    stats.TotalSize += torrent.TotalSize;
+                    
+                    // Check if this torrent is completed
+                    if (torrent.CompletedOn.HasValue)
+                    {
+                        stats.CompletedCount++;
+                    }
+                    
+                    // Check if this torrent is active in Transmission
+                    if (transmissionTorrentsByHash.TryGetValue(torrent.Hash, out var transmissionTorrent))
+                    {
+                        stats.ActiveCount++;
+                        stats.DownloadSpeed += transmissionTorrent.DownloadSpeed;
+                        stats.UploadSpeed += transmissionTorrent.UploadSpeed;
+                    }
+                }
+                
+                // Process any Transmission torrents that might not be in the database
+                foreach (var torrent in transmissionTorrents)
+                {
+                    // Skip if no hash or already processed
+                    if (string.IsNullOrEmpty(torrent.HashString) || 
+                        dbTorrents.Any(t => t.Hash == torrent.HashString))
+                    {
+                        continue;
+                    }
+                    
+                    var category = torrent.Category ?? "Uncategorized";
+                    
+                    if (!categoryStats.TryGetValue(category, out var stats))
+                    {
+                        stats = new CategoryStats
+                        {
+                            Category = category,
+                            Count = 0,
+                            TotalSize = 0,
+                            ActiveCount = 0,
+                            CompletedCount = 0,
+                            DownloadSpeed = 0,
+                            UploadSpeed = 0
+                        };
+                        categoryStats[category] = stats;
+                    }
+                    
+                    stats.Count++;
+                    stats.TotalSize += torrent.TotalSize;
+                    stats.ActiveCount++;
+                    stats.DownloadSpeed += torrent.DownloadSpeed;
+                    stats.UploadSpeed += torrent.UploadSpeed;
+                    
+                    // Check if this torrent is completed
+                    if (torrent.IsFinished)
+                    {
+                        stats.CompletedCount++;
+                    }
+                }
+                
+                // Return the category stats ordered by count
+                return categoryStats.Values
+                    .OrderByDescending(c => c.Count)
+                    .ToList();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error getting category stats");
+                _loggingService.Log(
+                    LogLevel.Error,
+                    $"Error getting category stats: {ex.Message}",
+                    "MetricsService",
+                    new Dictionary<string, string> {
+                        { "ErrorMessage", ex.Message },
+                        { "StackTrace", ex.StackTrace }
+                    }
+                );
+                
+                return new List<CategoryStats>();
+            }
+        }
+        
+        public async Task<SystemStatus> GetSystemStatusAsync()
+        {
+            var config = _configService.GetConfiguration();
+            
+            var status = new SystemStatus
+            {
+                TransmissionConnected = false,
+                AutoDownloadEnabled = config.AutoDownloadEnabled,
+                PostProcessingEnabled = config.PostProcessing.Enabled,
+                EnabledFeeds = await _feedRepository.Query().Where(f => f.Enabled).CountAsync(),
+                TotalFeeds = await _feedRepository.Query().CountAsync(),
+                CheckIntervalMinutes = config.CheckIntervalMinutes,
+                NotificationsEnabled = config.UserPreferences.NotificationsEnabled,
+                DatabaseStatus = "Connected"
+            };
+            
+            try
+            {
+                // Check database health by counting torrents
+                var torrentCount = await _torrentRepository.Query().CountAsync();
+                status.TorrentCount = torrentCount;
+                
+                // Count torrents by status
+                status.ActiveTorrentCount = await _torrentRepository.Query()
+                    .Where(t => t.Status == "downloading" || t.Status == "Downloading")
+                    .CountAsync();
+                
+                status.CompletedTorrentCount = await _torrentRepository.Query()
+                    .Where(t => t.CompletedOn.HasValue)
+                    .CountAsync();
+                
+                // Check feed items count
+                status.FeedItemCount = await _feedItemRepository.Query().CountAsync();
+                
+                // Check log entries count
+                var logCount = await _logRepository.Query().CountAsync();
+                status.LogEntryCount = logCount;
+                
+                // Get database size estimate (rows * avg row size)
+                long estimatedDbSize = (torrentCount * 1024) + (status.FeedItemCount * 512) + (logCount * 256);
+                status.EstimatedDatabaseSizeBytes = estimatedDbSize;
+                
+                // Try to connect to Transmission to check if it's available
+                var torrents = await _transmissionClient.GetTorrentsAsync();
+                
+                status.TransmissionConnected = true;
+                status.TransmissionVersion = "Unknown"; // We don't have a way to get this info directly
+                status.TransmissionTorrentCount = torrents.Count;
+                
+                // Enhancement: Map any transmission torrents not in our database
+                var dbTorrents = await _torrentRepository.Query().ToListAsync();
+                var transmissionHashes = torrents.Select(t => t.HashString).ToHashSet();
+                var dbHashes = dbTorrents.Select(t => t.Hash).ToHashSet();
+                
+                status.OrphanedTorrentCount = transmissionHashes.Count(h => !dbHashes.Contains(h));
+                status.StaleDbTorrentCount = dbHashes.Count(h => !transmissionHashes.Contains(h));
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error getting system status");
+                status.TransmissionConnected = false;
+                status.LastErrorMessage = ex.Message;
+            }
+            
+            return status;
+        }
+        
+        public async Task<Dictionary<string, long>> EstimateDiskUsageAsync()
+        {
+            try
+            {
+                // Get disk usage from both Transmission and database
+                var transmissionTorrents = await _transmissionClient.GetTorrentsAsync();
+                var dbTorrents = await _torrentRepository.Query().ToListAsync();
+                
+                // Calculate total size from Transmission (most accurate for active torrents)
+                long transmissionSize = transmissionTorrents.Sum(t => t.TotalSize);
+                
+                // Add sizes from database for torrents not in Transmission (historical data)
+                var transmissionHashes = transmissionTorrents.Select(t => t.HashString).ToHashSet();
+                var historicalTorrents = dbTorrents.Where(t => !transmissionHashes.Contains(t.Hash));
+                
+                long historicalSize = historicalTorrents.Sum(t => t.TotalSize);
+                
+                // Also get estimated database size
+                long databaseSize = await _torrentRepository.Query().CountAsync() * 1024 + // ~1KB per torrent
+                                   await _feedItemRepository.Query().CountAsync() * 512 +  // ~512B per feed item
+                                   await _logRepository.Query().CountAsync() * 256;        // ~256B per log entry
+                
+                // Calculate available space in download directory
+                string downloadDir = _configService.GetConfiguration().DownloadDirectory;
+                long availableSpace = 0;
+                
+                if (!string.IsNullOrEmpty(downloadDir) && System.IO.Directory.Exists(downloadDir))
+                {
+                    try
+                    {
+                        var driveInfo = new System.IO.DriveInfo(System.IO.Path.GetPathRoot(downloadDir));
+                        availableSpace = driveInfo.AvailableFreeSpace;
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogWarning(ex, $"Error getting available disk space for {downloadDir}");
+                    }
+                }
+                
+                return new Dictionary<string, long>
+                {
+                    ["activeTorrentsSize"] = transmissionSize,
+                    ["historicalTorrentsSize"] = historicalSize,
+                    ["totalTorrentsSize"] = transmissionSize + historicalSize,
+                    ["databaseSize"] = databaseSize,
+                    ["availableSpace"] = availableSpace
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error estimating disk usage");
+                _loggingService.Log(
+                    LogLevel.Error,
+                    $"Error estimating disk usage: {ex.Message}",
+                    "MetricsService",
+                    new Dictionary<string, string> {
+                        { "ErrorMessage", ex.Message },
+                        { "StackTrace", ex.StackTrace }
+                    }
+                );
+                
+                return new Dictionary<string, long>
+                {
+                    ["activeTorrentsSize"] = 0,
+                    ["historicalTorrentsSize"] = 0,
+                    ["totalTorrentsSize"] = 0,
+                    ["databaseSize"] = 0,
+                    ["availableSpace"] = 0
+                };
+            }
+        }
+        
+        public async Task<Dictionary<string, double>> GetPerformanceMetricsAsync()
+        {
+            var metrics = new Dictionary<string, double>();
+            
+            try
+            {
+                // Calculate average time to complete downloads
+                var completedTorrents = await _torrentRepository.Query()
+                    .Where(t => t.CompletedOn.HasValue)
+                    .ToListAsync();
+                
+                if (completedTorrents.Any())
+                {
+                    var avgCompletionTimeMinutes = completedTorrents
+                        .Where(t => t.AddedOn < t.CompletedOn)
+                        .Average(t => (t.CompletedOn.Value - t.AddedOn).TotalMinutes);
+                    
+                    metrics["AvgCompletionTimeMinutes"] = Math.Round(avgCompletionTimeMinutes, 2);
+                }
+                else
+                {
+                    metrics["AvgCompletionTimeMinutes"] = 0;
+                }
+                
+                // Calculate feed refresh performance
+                var feeds = await _feedRepository.Query().ToListAsync();
+                if (feeds.Any())
+                {
+                    var avgItemsPerFeed = await _feedItemRepository.Query().CountAsync() / (double)feeds.Count;
+                    metrics["AvgItemsPerFeed"] = Math.Round(avgItemsPerFeed, 2);
+                }
+                else
+                {
+                    metrics["AvgItemsPerFeed"] = 0;
+                }
+                
+                return metrics;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error getting performance metrics");
+                return new Dictionary<string, double>
+                {
+                    ["AvgCompletionTimeMinutes"] = 0,
+                    ["AvgItemsPerFeed"] = 0
+                };
+            }
+        }
+    }
+    
+    public class DashboardStats
+    {
+        public int ActiveDownloads { get; set; }
+        public int SeedingTorrents { get; set; }
+        public int ActiveFeeds { get; set; }
+        public int CompletedToday { get; set; }
+        public int AddedToday { get; set; }
+        public int FeedsCount { get; set; }
+        public int MatchedCount { get; set; }
+        public double DownloadSpeed { get; set; }
+        public double UploadSpeed { get; set; }
+        public long TotalDownloaded { get; set; }
+        public long TotalUploaded { get; set; }
+    }
+    
+    public class HistoricalDataPoint
+    {
+        public DateTime Date { get; set; }
+        public int Count { get; set; }
+        public long TotalSize { get; set; }
+        public int CompletedCount { get; set; }
+        public long CompletedSize { get; set; }
+    }
+    
+    public class CategoryStats
+    {
+        public string Category { get; set; }
+        public int Count { get; set; }
+        public long TotalSize { get; set; }
+        public int ActiveCount { get; set; }
+        public int CompletedCount { get; set; }
+        public double DownloadSpeed { get; set; }
+        public double UploadSpeed { get; set; }
+    }
+    
+    public class SystemStatus
+    {
+        public bool TransmissionConnected { get; set; }
+        public string TransmissionVersion { get; set; }
+        public bool AutoDownloadEnabled { get; set; }
+        public bool PostProcessingEnabled { get; set; }
+        public int EnabledFeeds { get; set; }
+        public int TotalFeeds { get; set; }
+        public int CheckIntervalMinutes { get; set; }
+        public bool NotificationsEnabled { get; set; }
+        
+        // Database status
+        public string DatabaseStatus { get; set; }
+        public int TorrentCount { get; set; }
+        public int ActiveTorrentCount { get; set; }
+        public int CompletedTorrentCount { get; set; }
+        public int FeedItemCount { get; set; }
+        public int LogEntryCount { get; set; }
+        public long EstimatedDatabaseSizeBytes { get; set; }
+        
+        // Transmission status
+        public int TransmissionTorrentCount { get; set; }
+        
+        // Sync status
+        public int OrphanedTorrentCount { get; set; } // Torrents in Transmission but not in database
+        public int StaleDbTorrentCount { get; set; }  // Torrents in database but not in Transmission
+        
+        // For compatibility
+        public string TranmissionVersion 
+        { 
+            get => TransmissionVersion; 
+            set => TransmissionVersion = value; 
+        }
+        
+        // Error info
+        public string LastErrorMessage { get; set; }
+    }
+    
+    public class MetricsBackgroundService : BackgroundService
+    {
+        private readonly ILogger<MetricsBackgroundService> _logger;
+        private readonly IServiceProvider _serviceProvider;
+        
+        public MetricsBackgroundService(
+            ILogger<MetricsBackgroundService> logger,
+            IServiceProvider serviceProvider)
+        {
+            _logger = logger;
+            _serviceProvider = serviceProvider;
+        }
+        
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            _logger.LogInformation("Metrics background service started");
+            
+            // Update metrics every minute
+            var timer = new PeriodicTimer(TimeSpan.FromMinutes(1));
+            
+            while (!stoppingToken.IsCancellationRequested && await timer.WaitForNextTickAsync(stoppingToken))
+            {
+                try
+                {
+                    using var scope = _serviceProvider.CreateScope();
+                    var metricsService = scope.ServiceProvider.GetRequiredService<IMetricsService>();
+                    
+                    // This just ensures the metrics are calculated and cached if needed
+                    await metricsService.GetDashboardStatsAsync();
+                    
+                    _logger.LogDebug("Metrics updated");
+                }
+                catch (OperationCanceledException)
+                {
+                    // Service is shutting down
+                    break;
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Error updating metrics");
+                }
+            }
+            
+            _logger.LogInformation("Metrics background service stopped");
+        }
+    }
+}

test-installation.sh

@@ -0,0 +1,192 @@
+#!/bin/bash
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# Print section header
+print_section() {
+  echo -e "\n${GREEN}====== $1 ======${NC}"
+}
+
+# Error handling
+set -e
+trap 'echo -e "${RED}An error occurred. Test failed.${NC}"; exit 1' ERR
+
+# Setup test environment
+print_section "Setting up test environment"
+CURRENT_DIR=$(pwd)
+TEST_DIR="$CURRENT_DIR/test-install"
+mkdir -p "$TEST_DIR"
+CONFIG_DIR="$TEST_DIR/config"
+mkdir -p "$CONFIG_DIR"
+
+# Copy necessary files
+print_section "Copying files"
+mkdir -p "$TEST_DIR"
+# Copy only essential files (not the test directory itself)
+find "$CURRENT_DIR" -maxdepth 1 -not -path "*test-install*" -not -path "$CURRENT_DIR" -exec cp -r {} "$TEST_DIR/" \;
+cd "$TEST_DIR"
+
+# Check .NET SDK installation
+print_section "Checking .NET SDK"
+dotnet --version
+if [ $? -ne 0 ]; then
+  echo -e "${RED}.NET SDK is not installed or not in PATH. Please install .NET SDK 7.0.${NC}"
+  exit 1
+fi
+
+# Build the application
+print_section "Building application"
+dotnet build -c Release
+if [ $? -ne 0 ]; then
+  echo -e "${RED}Build failed. See errors above.${NC}"
+  exit 1
+fi
+echo -e "${GREEN}Build successful.${NC}"
+
+# Create database configuration
+print_section "Creating database configuration"
+echo '{
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=localhost;Database=torrentmanager_test;Username=postgres;Password=postgres"
+  }
+}' > "$CONFIG_DIR/appsettings.json"
+
+cp "$CONFIG_DIR/appsettings.json" "$TEST_DIR/appsettings.json"
+echo -e "${GREEN}Database configuration created at $CONFIG_DIR/appsettings.json${NC}"
+
+# Check if PostgreSQL is running
+print_section "Checking PostgreSQL"
+if command -v pg_isready >/dev/null 2>&1; then
+  pg_isready
+  PG_READY=$?
+else
+  echo -e "${YELLOW}PostgreSQL client tools not found.${NC}"
+  PG_READY=1
+fi
+
+if [ $PG_READY -ne 0 ]; then
+  echo -e "${YELLOW}PostgreSQL is not running or not installed.${NC}"
+  echo -e "${YELLOW}This test expects PostgreSQL to be available with a 'postgres' user.${NC}"
+  echo -e "${YELLOW}Either install PostgreSQL or modify the connection string in appsettings.json.${NC}"
+  
+  # Continue anyway for testing other aspects
+  echo -e "${YELLOW}Continuing test without database functionality.${NC}"
+  
+  # Update appsettings.json to use SQLite instead
+  echo '{
+  "ConnectionStrings": {
+    "DefaultConnection": "Data Source=torrentmanager_test.db"
+  }
+}' > "$TEST_DIR/appsettings.json"
+  
+  echo -e "${YELLOW}Using SQLite database instead.${NC}"
+  
+  # Install Entity Framework Core SQLite provider
+  dotnet add package Microsoft.EntityFrameworkCore.Sqlite --version 7.0.17
+  
+  # Update DatabaseProvider to use SQLite
+  if [ -f "$TEST_DIR/src/Data/TorrentManagerContextFactory.cs" ]; then
+    # Replace Npgsql with SQLite in DbContext factory
+    sed -i 's/UseNpgsql/UseSqlite/g' "$TEST_DIR/src/Data/TorrentManagerContextFactory.cs"
+    echo -e "${YELLOW}Modified database provider to use SQLite.${NC}"
+  fi
+else
+  # Create test database
+  echo -e "${GREEN}Creating test database...${NC}"
+  psql -U postgres -c "DROP DATABASE IF EXISTS torrentmanager_test;" || true
+  psql -U postgres -c "CREATE DATABASE torrentmanager_test;"
+fi
+
+# Install Entity Framework CLI if needed
+if ! dotnet tool list -g | grep "dotnet-ef" > /dev/null; then
+  echo -e "${GREEN}Installing Entity Framework Core tools...${NC}"
+  dotnet tool install --global dotnet-ef --version 7.0.15
+fi
+
+# Apply migrations
+print_section "Applying database migrations"
+dotnet ef database update || true
+
+if [ $? -eq 0 ]; then
+  echo -e "${GREEN}Migrations applied successfully.${NC}"
+else
+  echo -e "${YELLOW}Failed to apply migrations, but continuing test.${NC}"
+fi
+
+# Test run the application (with timeout)
+print_section "Testing application startup"
+timeout 30s dotnet run --urls=http://localhost:5555 &
+APP_PID=$!
+
+# Wait for the app to start
+echo -e "${GREEN}Waiting for application to start...${NC}"
+sleep 5
+
+# Try to access the API
+print_section "Testing API endpoints"
+MAX_ATTEMPTS=30
+ATTEMPT=0
+API_STATUS=1
+
+echo -e "${GREEN}Waiting for API to become available...${NC}"
+while [ $ATTEMPT -lt $MAX_ATTEMPTS ] && [ $API_STATUS -ne 0 ]; do
+  if command -v curl >/dev/null 2>&1; then
+    curl -s http://localhost:5555/swagger/index.html > /dev/null
+    API_STATUS=$?
+  else
+    # Try using wget if curl is not available
+    if command -v wget >/dev/null 2>&1; then
+      wget -q --spider http://localhost:5555/swagger/index.html
+      API_STATUS=$?
+    else
+      echo -e "${YELLOW}Neither curl nor wget found. Cannot test API.${NC}"
+      break
+    fi
+  fi
+  
+  if [ $API_STATUS -ne 0 ]; then
+    echo -n "."
+    sleep 1
+    ATTEMPT=$((ATTEMPT+1))
+  fi
+done
+
+echo ""  # New line after progress dots
+
+# Kill the app
+kill $APP_PID 2>/dev/null || true
+
+if [ $API_STATUS -eq 0 ]; then
+  echo -e "${GREEN}API successfully responded.${NC}"
+else
+  echo -e "${YELLOW}API did not respond within the timeout period.${NC}"
+  echo -e "${YELLOW}This may be normal if database migrations are slow or there are other startup delays.${NC}"
+fi
+
+# Check file permissions and structure
+print_section "Checking build outputs"
+if [ -f "$TEST_DIR/bin/Release/net7.0/TransmissionRssManager.dll" ]; then
+  echo -e "${GREEN}Application was built successfully.${NC}"
+else
+  echo -e "${RED}Missing application binaries.${NC}"
+fi
+
+# Clean up test resources
+print_section "Test completed"
+if [ "$1" != "--keep" ]; then
+  echo -e "${GREEN}Cleaning up test resources...${NC}"
+  # Drop test database if PostgreSQL is available
+  pg_isready > /dev/null && psql -U postgres -c "DROP DATABASE IF EXISTS torrentmanager_test;" || true
+  # Remove test directory
+  rm -rf "$TEST_DIR"
+  echo -e "${GREEN}Test directory removed.${NC}"
+else
+  echo -e "${GREEN}Test resources kept as requested.${NC}"
+  echo -e "${GREEN}Test directory: $TEST_DIR${NC}"
+fi
+
+echo -e "${GREEN}Installation test completed.${NC}"