Code reorganization

Eve-O-Preview/Configuration/Implementation/ConfigurationStorage.cs

@@ -0,0 +1,56 @@
+using System.IO;
+using Newtonsoft.Json;
+
+namespace EveOPreview.Configuration.Implementation
+{
+	class ConfigurationStorage : IConfigurationStorage
+	{
+		private const string ConfigurationFileName = "EVE-O Preview.json";
+
+		private readonly IAppConfig _appConfig;
+		private readonly IThumbnailConfiguration _thumbnailConfiguration;
+
+		public ConfigurationStorage(IAppConfig appConfig, IThumbnailConfiguration thumbnailConfiguration)
+		{
+			this._appConfig = appConfig;
+			this._thumbnailConfiguration = thumbnailConfiguration;
+		}
+
+		public void Load()
+		{
+			string filename = this.GetConfigFileName();
+
+			if (!File.Exists(filename))
+			{
+				return;
+			}
+
+			string rawData = File.ReadAllText(filename);
+
+			JsonConvert.PopulateObject(rawData, this._thumbnailConfiguration);
+
+			// Validate data after loading it
+			this._thumbnailConfiguration.ApplyRestrictions();
+		}
+
+		public void Save()
+		{
+			string rawData = JsonConvert.SerializeObject(this._thumbnailConfiguration, Formatting.Indented);
+			string filename = this.GetConfigFileName();
+
+			try
+			{
+				File.WriteAllText(filename, rawData);
+			}
+			catch (IOException)
+			{
+				// Ignore error if for some reason the updated config cannot be written down
+			}
+		}
+
+		private string GetConfigFileName()
+		{
+			return string.IsNullOrEmpty(this._appConfig.ConfigFileName) ? ConfigurationStorage.ConfigurationFileName : this._appConfig.ConfigFileName;
+		}
+	}
+}