feat: 初始功能

Services/Grpc/GrpcMetadataFactory.cs

@@ -0,0 +1,30 @@
+using CloudPrint.Client.Models;
+using Grpc.Core;
+
+namespace CloudPrint.Client.Services.Grpc;
+
+public static class GrpcMetadataFactory
+{
+    public static Metadata Create(string apiKey, string printerToken, AdminSession adminSession)
+    {
+        var metadata = new Metadata();
+
+        AddIfNotEmpty(metadata, "x-api-key", apiKey);
+        AddIfNotEmpty(metadata, "x-printer-token", printerToken);
+
+        if (adminSession.IsAuthenticated)
+        {
+            metadata.Add("authorization", $"Bearer {adminSession.AccessToken}");
+        }
+
+        return metadata;
+    }
+
+    private static void AddIfNotEmpty(Metadata metadata, string key, string value)
+    {
+        if (!string.IsNullOrWhiteSpace(value))
+        {
+            metadata.Add(key, value);
+        }
+    }
+}