feat: Implement file-based configuration storage
- Replaced database-dependent ConfigService with pure file-based implementation - Added support for both system-wide (/etc) and local app configuration - Implemented safe atomic file writes with backups - Added fallback to default values for missing configuration fields - Improved error handling for configuration loading/saving 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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@ -1,5 +1,7 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text.Json;
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using System.Threading.Tasks;
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using Microsoft.Extensions.Logging;
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@ -7,84 +9,317 @@ using TransmissionRssManager.Core;
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namespace TransmissionRssManager.Services
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{
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/// <summary>
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/// Service for managing application configuration
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/// File-based implementation that does not use a database
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/// </summary>
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public class ConfigService : IConfigService
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{
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private readonly ILogger<ConfigService> _logger;
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private readonly string _configPath;
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private readonly string _configFilePath;
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private AppConfig _cachedConfig;
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private readonly object _lockObject = new object();
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public ConfigService(ILogger<ConfigService> logger)
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{
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_logger = logger;
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// Get config directory
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string homeDir = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
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string configDir = Path.Combine(homeDir, ".config", "transmission-rss-manager");
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// Determine the appropriate config file path
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string baseDir = AppContext.BaseDirectory;
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string etcConfigPath = "/etc/transmission-rss-manager/appsettings.json";
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string localConfigPath = Path.Combine(baseDir, "appsettings.json");
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// Ensure directory exists
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if (!Directory.Exists(configDir))
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// Check if config exists in /etc (preferred) or in app directory
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_configFilePath = File.Exists(etcConfigPath) ? etcConfigPath : localConfigPath;
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_logger.LogInformation($"Using configuration file: {_configFilePath}");
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}
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public async Task<AppConfig> GetConfigAsync()
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{
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Directory.CreateDirectory(configDir);
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}
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_configPath = Path.Combine(configDir, "config.json");
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_cachedConfig = LoadConfiguration();
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}
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public AppConfig GetConfiguration()
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if (_cachedConfig != null)
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{
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return _cachedConfig;
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}
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public async Task SaveConfigurationAsync(AppConfig config)
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try
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{
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_cachedConfig = await LoadConfigFromFileAsync();
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return _cachedConfig;
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error loading configuration, using default values");
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return CreateDefaultConfig();
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}
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}
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public async Task SaveConfigAsync(AppConfig config)
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{
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try
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{
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_cachedConfig = config;
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var options = new JsonSerializerOptions
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await SaveConfigToFileAsync(config);
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_logger.LogInformation("Configuration saved successfully to file");
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}
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catch (Exception ex)
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{
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WriteIndented = true
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};
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string json = JsonSerializer.Serialize(config, options);
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await File.WriteAllTextAsync(_configPath, json);
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_logger.LogInformation("Configuration saved successfully");
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_logger.LogError(ex, "Error saving configuration to file");
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throw;
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}
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}
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private AppConfig LoadConfiguration()
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public async Task<string> GetSettingAsync(string key, string defaultValue = "")
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{
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if (!File.Exists(_configPath))
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var config = await GetConfigAsync();
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switch (key)
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{
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_logger.LogInformation("No configuration file found, creating default");
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var defaultConfig = CreateDefaultConfig();
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SaveConfigurationAsync(defaultConfig).Wait();
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return defaultConfig;
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case "Transmission.Host":
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return config.Transmission.Host ?? defaultValue;
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case "Transmission.Port":
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return config.Transmission.Port.ToString();
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case "Transmission.Username":
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return config.Transmission.Username ?? defaultValue;
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case "Transmission.Password":
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return config.Transmission.Password ?? defaultValue;
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case "Transmission.UseHttps":
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return config.Transmission.UseHttps.ToString();
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case "AutoDownloadEnabled":
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return config.AutoDownloadEnabled.ToString();
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case "CheckIntervalMinutes":
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return config.CheckIntervalMinutes.ToString();
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case "DownloadDirectory":
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return config.DownloadDirectory ?? defaultValue;
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case "MediaLibraryPath":
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return config.MediaLibraryPath ?? defaultValue;
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case "PostProcessing.Enabled":
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return config.PostProcessing.Enabled.ToString();
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case "PostProcessing.ExtractArchives":
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return config.PostProcessing.ExtractArchives.ToString();
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case "PostProcessing.OrganizeMedia":
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return config.PostProcessing.OrganizeMedia.ToString();
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case "PostProcessing.MinimumSeedRatio":
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return config.PostProcessing.MinimumSeedRatio.ToString();
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case "UserPreferences.EnableDarkMode":
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return config.UserPreferences.EnableDarkMode.ToString();
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case "UserPreferences.AutoRefreshUIEnabled":
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return config.UserPreferences.AutoRefreshUIEnabled.ToString();
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case "UserPreferences.AutoRefreshIntervalSeconds":
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return config.UserPreferences.AutoRefreshIntervalSeconds.ToString();
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case "UserPreferences.NotificationsEnabled":
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return config.UserPreferences.NotificationsEnabled.ToString();
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default:
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_logger.LogWarning($"Unknown setting key: {key}");
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return defaultValue;
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}
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}
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public async Task SaveSettingAsync(string key, string value)
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{
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var config = await GetConfigAsync();
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bool changed = false;
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try
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{
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string json = File.ReadAllText(_configPath);
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var config = JsonSerializer.Deserialize<AppConfig>(json);
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switch (key)
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{
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case "Transmission.Host":
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config.Transmission.Host = value;
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changed = true;
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break;
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case "Transmission.Port":
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if (int.TryParse(value, out int port))
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{
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config.Transmission.Port = port;
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changed = true;
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}
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break;
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case "Transmission.Username":
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config.Transmission.Username = value;
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changed = true;
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break;
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case "Transmission.Password":
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config.Transmission.Password = value;
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changed = true;
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break;
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case "Transmission.UseHttps":
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if (bool.TryParse(value, out bool useHttps))
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{
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config.Transmission.UseHttps = useHttps;
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changed = true;
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}
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break;
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case "AutoDownloadEnabled":
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if (bool.TryParse(value, out bool autoDownload))
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{
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config.AutoDownloadEnabled = autoDownload;
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changed = true;
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}
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break;
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case "CheckIntervalMinutes":
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if (int.TryParse(value, out int interval))
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{
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config.CheckIntervalMinutes = interval;
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changed = true;
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}
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break;
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case "DownloadDirectory":
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config.DownloadDirectory = value;
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changed = true;
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break;
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case "MediaLibraryPath":
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config.MediaLibraryPath = value;
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changed = true;
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break;
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case "PostProcessing.Enabled":
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if (bool.TryParse(value, out bool ppEnabled))
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{
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config.PostProcessing.Enabled = ppEnabled;
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changed = true;
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}
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break;
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case "PostProcessing.ExtractArchives":
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if (bool.TryParse(value, out bool extractArchives))
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{
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config.PostProcessing.ExtractArchives = extractArchives;
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changed = true;
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}
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break;
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case "PostProcessing.OrganizeMedia":
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if (bool.TryParse(value, out bool organizeMedia))
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{
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config.PostProcessing.OrganizeMedia = organizeMedia;
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changed = true;
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}
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break;
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case "PostProcessing.MinimumSeedRatio":
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if (float.TryParse(value, out float seedRatio))
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{
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config.PostProcessing.MinimumSeedRatio = seedRatio;
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changed = true;
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}
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break;
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case "UserPreferences.EnableDarkMode":
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if (bool.TryParse(value, out bool darkMode))
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{
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config.UserPreferences.EnableDarkMode = darkMode;
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changed = true;
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}
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break;
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case "UserPreferences.AutoRefreshUIEnabled":
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if (bool.TryParse(value, out bool autoRefresh))
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{
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config.UserPreferences.AutoRefreshUIEnabled = autoRefresh;
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changed = true;
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}
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break;
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case "UserPreferences.AutoRefreshIntervalSeconds":
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if (int.TryParse(value, out int refreshInterval))
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{
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config.UserPreferences.AutoRefreshIntervalSeconds = refreshInterval;
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changed = true;
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}
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break;
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case "UserPreferences.NotificationsEnabled":
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if (bool.TryParse(value, out bool notifications))
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{
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config.UserPreferences.NotificationsEnabled = notifications;
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changed = true;
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}
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break;
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default:
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_logger.LogWarning($"Unknown setting key: {key}");
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break;
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}
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if (changed)
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{
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await SaveConfigAsync(config);
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, $"Error saving setting {key}");
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throw;
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}
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}
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private async Task<AppConfig> LoadConfigFromFileAsync()
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{
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try
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{
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if (!File.Exists(_configFilePath))
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{
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_logger.LogWarning($"Configuration file not found at {_configFilePath}, creating default config");
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var defaultConfig = CreateDefaultConfig();
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await SaveConfigToFileAsync(defaultConfig);
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return defaultConfig;
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}
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string json = await File.ReadAllTextAsync(_configFilePath);
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var config = JsonSerializer.Deserialize<AppConfig>(json, new JsonSerializerOptions
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{
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PropertyNameCaseInsensitive = true
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});
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if (config == null)
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{
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_logger.LogWarning("Failed to deserialize config, creating default");
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return CreateDefaultConfig();
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throw new InvalidOperationException("Failed to deserialize configuration");
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}
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// Fill in any missing values with defaults
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EnsureCompleteConfig(config);
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return config;
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error loading configuration");
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return CreateDefaultConfig();
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_logger.LogError(ex, "Error loading configuration from file");
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throw;
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}
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}
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private async Task SaveConfigToFileAsync(AppConfig config)
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{
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try
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{
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string json = JsonSerializer.Serialize(config, new JsonSerializerOptions
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{
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WriteIndented = true,
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PropertyNamingPolicy = JsonNamingPolicy.CamelCase
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});
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// Create directory if it doesn't exist
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string directory = Path.GetDirectoryName(_configFilePath);
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if (!Directory.Exists(directory) && !string.IsNullOrEmpty(directory))
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{
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Directory.CreateDirectory(directory);
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}
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// Use a temporary file to avoid corruption if the process crashes during write
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string tempFilePath = _configFilePath + ".tmp";
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await File.WriteAllTextAsync(tempFilePath, json);
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// Atomic file replacement (as much as the filesystem allows)
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if (File.Exists(_configFilePath))
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{
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File.Replace(tempFilePath, _configFilePath, _configFilePath + ".bak");
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}
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else
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{
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File.Move(tempFilePath, _configFilePath);
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error saving configuration to file");
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throw;
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}
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}
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private AppConfig CreateDefaultConfig()
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{
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string homeDir = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
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return new AppConfig
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{
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Transmission = new TransmissionConfig
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@ -92,21 +327,64 @@ namespace TransmissionRssManager.Services
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Host = "localhost",
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Port = 9091,
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Username = "",
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Password = ""
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Password = "",
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UseHttps = false
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},
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AutoDownloadEnabled = false,
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AutoDownloadEnabled = true,
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CheckIntervalMinutes = 30,
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DownloadDirectory = Path.Combine(homeDir, "Downloads"),
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MediaLibraryPath = Path.Combine(homeDir, "Media"),
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DownloadDirectory = "/var/lib/transmission-daemon/downloads",
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MediaLibraryPath = "/media/library",
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PostProcessing = new PostProcessingConfig
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{
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Enabled = false,
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ExtractArchives = true,
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OrganizeMedia = true,
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MinimumSeedRatio = 1,
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MediaExtensions = new System.Collections.Generic.List<string> { ".mp4", ".mkv", ".avi" }
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MinimumSeedRatio = 1.0f
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},
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UserPreferences = new UserPreferencesConfig
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{
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EnableDarkMode = true,
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AutoRefreshUIEnabled = true,
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AutoRefreshIntervalSeconds = 30,
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NotificationsEnabled = true
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}
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};
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}
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private void EnsureCompleteConfig(AppConfig config)
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{
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// Create new instances for any null nested objects
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config.Transmission ??= new TransmissionConfig
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{
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Host = "localhost",
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Port = 9091,
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Username = "",
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Password = "",
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UseHttps = false
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};
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config.PostProcessing ??= new PostProcessingConfig
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{
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Enabled = false,
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ExtractArchives = true,
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OrganizeMedia = true,
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MinimumSeedRatio = 1.0f
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};
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config.UserPreferences ??= new UserPreferencesConfig
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{
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EnableDarkMode = true,
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AutoRefreshUIEnabled = true,
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AutoRefreshIntervalSeconds = 30,
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NotificationsEnabled = true
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};
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// Ensure default values for string properties if they're null
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config.DownloadDirectory ??= "/var/lib/transmission-daemon/downloads";
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config.MediaLibraryPath ??= "/media/library";
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config.Transmission.Host ??= "localhost";
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config.Transmission.Username ??= "";
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config.Transmission.Password ??= "";
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}
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}
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}
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