Enough already. I'm obviously not incentivized/shamed into writing unit tests for things in UNTESTED dir.s. It's just making a mess of the file tree

LibationWinForms/Dialogs/SettingsDialog.cs

@@ -0,0 +1,92 @@
+using System;
+using System.IO;
+using System.Windows.Forms;
+using Dinah.Core;
+using FileManager;
+using InternalUtilities;
+
+namespace LibationWinForms.Dialogs
+{
+	public partial class SettingsDialog : Form
+	{
+		Configuration config { get; } = Configuration.Instance;
+		Func<string, string> desc { get; } = Configuration.GetDescription;
+
+		public SettingsDialog()
+		{
+			InitializeComponent();
+		}
+
+		private void SettingsDialog_Load(object sender, EventArgs e)
+		{
+			this.booksLocationDescLbl.Text = desc(nameof(config.Books));
+			this.downloadsInProgressDescLbl.Text = desc(nameof(config.DownloadsInProgressEnum));
+			this.decryptInProgressDescLbl.Text = desc(nameof(config.DecryptInProgressEnum));
+
+			var winTempText = "In your Windows temporary folder\r\n";
+			this.downloadsInProgressWinTempRb.Text = $"{winTempText}{Path.Combine(Configuration.WinTemp, "DownloadsInProgress")}";
+			this.decryptInProgressWinTempRb.Text = $"{winTempText}{Path.Combine(Configuration.WinTemp, "DecryptInProgress")}";
+
+			var libFileText = "In your Libation Files (ie: program-created files)\r\n";
+			this.downloadsInProgressLibationFilesRb.Text = $"{libFileText}{Path.Combine(config.LibationFiles, "DownloadsInProgress")}";
+			this.decryptInProgressLibationFilesRb.Text = $"{libFileText}{Path.Combine(config.LibationFiles, "DecryptInProgress")}";
+
+			this.booksLocationTb.Text
+				= !string.IsNullOrWhiteSpace(config.Books)
+				? config.Books
+				: Path.GetDirectoryName(Exe.FileLocationOnDisk);
+
+			switch (config.DownloadsInProgressEnum)
+			{
+				case "LibationFiles":
+					downloadsInProgressLibationFilesRb.Checked = true;
+					break;
+				case "WinTemp":
+				default:
+					downloadsInProgressWinTempRb.Checked = true;
+					break;
+			}
+
+			switch (config.DecryptInProgressEnum)
+			{
+				case "LibationFiles":
+					decryptInProgressLibationFilesRb.Checked = true;
+					break;
+				case "WinTemp":
+				default:
+					decryptInProgressWinTempRb.Checked = true;
+					break;
+			}
+		}
+
+		private void booksLocationSearchBtn_Click(object sender, EventArgs e) => selectFolder("Search for books location", this.booksLocationTb);
+
+		private static void selectFolder(string desc, TextBox textbox)
+		{
+			using var dialog = new FolderBrowserDialog { Description = desc, SelectedPath = "" };
+			dialog.ShowDialog();
+			if (!string.IsNullOrWhiteSpace(dialog.SelectedPath))
+				textbox.Text = dialog.SelectedPath;
+		}
+
+		private void saveBtn_Click(object sender, EventArgs e)
+		{
+			config.DownloadsInProgressEnum = downloadsInProgressLibationFilesRb.Checked ? "LibationFiles" : "WinTemp";
+			config.DecryptInProgressEnum = decryptInProgressLibationFilesRb.Checked ? "LibationFiles" : "WinTemp";
+
+			var newBooks = this.booksLocationTb.Text;
+			if (!Directory.Exists(newBooks))
+			{
+				MessageBox.Show($"Not saving change to Books location. This folder does not exist:\r\n{newBooks}");
+				return;
+			}
+			else
+				config.Books = newBooks;
+
+			this.DialogResult = DialogResult.OK;
+			this.Close();
+		}
+
+		private void cancelBtn_Click(object sender, EventArgs e) => this.Close();
+	}
+}