ac4c168725
- Configuration.LibationSettingsAreValid is true if Books property exists and is any non-null, non-empty string. - If LibationSettingsAreValid is false, Libation will prompt user to set up Libation. - When the main window is shown, Libation checks if the books directory exists, and if it doesn't, user is notified and prompted to change their setting - When a user tries to liberate or convert a book, Books directory is validated and user notified if it does not exist.
66 lines
2.1 KiB
C#
66 lines
2.1 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using Dinah.Core;
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using FileManager;
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using Newtonsoft.Json.Linq;
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#nullable enable
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namespace LibationFileManager
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{
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public partial class Configuration : PropertyChangeFilter
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{
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/// <summary>
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/// Returns true if <see cref="SettingsFilePath"/> exists and the <see cref="Books"/> property has a non-null, non-empty value.
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/// Does not verify the existence of the <see cref="Books"/> directory.
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/// </summary>
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public bool LibationSettingsAreValid => SettingsFileIsValid(SettingsFilePath);
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/// <summary>
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/// Returns true if <paramref name="settingsFile"/> exists and the <see cref="Books"/> property has a non-null, non-empty value.
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/// Does not verify the existence of the <see cref="Books"/> directory.
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/// </summary>
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/// <param name="settingsFile">File path to the settings JSON file</param>
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public static bool SettingsFileIsValid(string settingsFile)
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{
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if (!Directory.Exists(Path.GetDirectoryName(settingsFile)) || !File.Exists(settingsFile))
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return false;
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try
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{
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var settingsJson = JObject.Parse(File.ReadAllText(settingsFile));
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return !string.IsNullOrWhiteSpace(settingsJson[nameof(Books)]?.Value<string>());
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}
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catch (Exception ex)
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{
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Serilog.Log.Logger.Error(ex, "Failed to load settings file: {@SettingsFile}", settingsFile);
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try
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{
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Serilog.Log.Logger.Information("Deleting invalid settings file: {@SettingsFile}", settingsFile);
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FileUtility.SaferDelete(settingsFile);
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Serilog.Log.Logger.Information("Creating a new, empty setting file: {@SettingsFile}", settingsFile);
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try
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{
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File.WriteAllText(settingsFile, "{}");
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}
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catch (Exception createEx)
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{
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Serilog.Log.Logger.Error(createEx, "Failed to create new settings file: {@SettingsFile}", settingsFile);
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}
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}
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catch (Exception deleteEx)
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{
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Serilog.Log.Logger.Error(deleteEx, "Failed to delete the invalid settings file: {@SettingsFile}", settingsFile);
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}
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return false;
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}
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}
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#region singleton stuff
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public static Configuration Instance { get; } = new Configuration();
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private Configuration() { }
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#endregion
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}
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}
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