From cf6f87bea88df3f90e33dfdc5bb16f47b8716054 Mon Sep 17 00:00:00 2001
From: "Emma@Rory&" <root@rory.gay>
Date: Mon, 24 Jul 2023 20:57:23 +0200
Subject: Start of MRU Desktop

---
 MatrixRoomUtils.Desktop/MRUDesktopConfiguration.cs | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 MatrixRoomUtils.Desktop/MRUDesktopConfiguration.cs

(limited to 'MatrixRoomUtils.Desktop/MRUDesktopConfiguration.cs')

diff --git a/MatrixRoomUtils.Desktop/MRUDesktopConfiguration.cs b/MatrixRoomUtils.Desktop/MRUDesktopConfiguration.cs
new file mode 100644
index 0000000..d321591
--- /dev/null
+++ b/MatrixRoomUtils.Desktop/MRUDesktopConfiguration.cs
@@ -0,0 +1,44 @@
+using System.Collections;
+using ArcaneLibs.Extensions;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace MatrixRoomUtils.Desktop;
+
+public class MRUDesktopConfiguration {
+    private static ILogger<MRUDesktopConfiguration> _logger;
+
+    public MRUDesktopConfiguration(ILogger<MRUDesktopConfiguration> logger, IConfiguration config, HostBuilderContext host) {
+        _logger = logger;
+        logger.LogInformation($"Loading configuration for environment: {host.HostingEnvironment.EnvironmentName}...");
+        config.GetSection("MRUDesktop").Bind(this);
+        DataStoragePath = ExpandPath(DataStoragePath);
+        CacheStoragePath = ExpandPath(CacheStoragePath);
+    }
+
+    public string DataStoragePath { get; set; } = "";
+    public string CacheStoragePath { get; set; } = "";
+
+    private static string ExpandPath(string path, bool retry = true) {
+        _logger.LogInformation($"Expanding path `{path}`");
+
+        if (path.StartsWith("~")) {
+            path = Path.Join(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), path[1..]);
+        }
+
+        Environment.GetEnvironmentVariables().Cast<DictionaryEntry>().OrderByDescending(x => x.Key.ToString().Length).ToList().ForEach(x => {
+            path = path.Replace($"${x.Key}", x.Value.ToString());
+        });
+
+        _logger.LogInformation($"Expanded path to `{path}`");
+        int tries = 0;
+        while(retry && path.ContainsAnyOf("~$".Split())) {
+            if(tries++ > 100)
+                throw new Exception($"Path `{path}` contains unrecognised environment variables");
+            path = ExpandPath(path, false);
+        }
+
+        return path;
+    }
+}
-- 
cgit 1.5.1