Register

APP/Utility/SaveBoy.cs

@@ -0,0 +1,77 @@
+using System.Text.Json;
+using APP.DTO;
+
+namespace APP.Utility;
+
+internal static class SaveBoy
+{
+    private static readonly string AuthFile = ".." + Path.DirectorySeparatorChar + "reg.json";
+
+    internal static async Task<Auth?> ReadAuth()
+    {
+        if (File.Exists(AuthFile))
+        {
+            return await ReadFromFile<Auth>(AuthFile);
+        }
+
+        return null;
+    }
+
+    internal static void DeleteAuth()
+    {
+        if (File.Exists(AuthFile))
+        {
+            File.Delete(AuthFile);
+        }
+    }
+
+    internal static async Task SaveAuth(Auth auth)
+    {
+        await WriteToFile(AuthFile, auth);
+    }
+
+    private static async Task WriteToFile<T>(string filePath, T objectToWrite)
+    {
+        try
+        {
+            await using var sw = new StreamWriter(filePath, false);
+            try
+            {
+                var res = JsonSerializer.Serialize(objectToWrite);
+                await sw.WriteAsync(res);
+            }
+            finally
+            {
+                sw.Close();
+            }
+        }
+        catch (Exception ex)
+        {
+            await Console.Error.WriteLineAsync(ex.Message);
+        }
+    }
+
+    private static async Task<T?> ReadFromFile<T>(string filePath)
+    {
+        try
+        {
+            using var sr = new StreamReader(filePath);
+            try
+            {
+                var text = await sr.ReadToEndAsync();
+                var res = JsonSerializer.Deserialize<T>(text);
+                return res;
+            }
+            finally
+            {
+                sr.Close();
+            }
+        }
+        catch (Exception ex)
+        {
+            await Console.Error.WriteLineAsync(ex.Message);
+        }
+
+        return default;
+    }
+}