Parse 12 vs 24 bit colors eventually

Services/FileParserService.cs

@@ -0,0 +1,38 @@
+using System;
+using System.IO;
+using System.IO.IsolatedStorage;
+using System.Linq;
+using System.Text;
+using fxl.codes.kisekae.Models;
+using Microsoft.Extensions.Logging;
+
+namespace fxl.codes.kisekae.Services
+{
+    public class FileParserService
+    {
+        private readonly ILogger<FileParserService> _logger;
+        private readonly IsolatedStorageFile _storage;
+
+        public FileParserService(ILogger<FileParserService> logger)
+        {
+            _logger = logger;
+            _storage = IsolatedStorageFile.GetUserStoreForApplication();
+        }
+
+        public void ParsePalette(string directory, PaletteModel palette)
+        {
+            _logger.LogTrace($"Reading palette {palette.FileName} from {directory}");
+            using var stream = _storage.OpenFile(Path.Combine(directory, palette.FileName), FileMode.Open);
+            if (!stream.CanRead) throw new InvalidDataException();
+
+            var buffer = new byte[stream.Length];
+            stream.Read(buffer, 0, buffer.Length);
+
+            var header = Encoding.ASCII.GetBytes("KiSS");
+            if (buffer[..header.Length].SequenceEqual(header))
+            {
+                // Matching header I guess?
+            }
+        }
+    }
+}