Saving snapshots

Shogi.Api/Repositories/SessionRepository.cs

@@ -1,9 +1,11 @@
 using Dapper;
 using Shogi.Api.Repositories.Dto;
+using Shogi.Api.Repositories.Dto.SessionState;
 using Shogi.Contracts.Api.Commands;
 using Shogi.Domain.Aggregates;
 using System.Data;
 using System.Data.SqlClient;
+using System.Text.Json;
 
 namespace Shogi.Api.Repositories;
 
@@ -81,4 +83,19 @@ public class SessionRepository(IConfiguration configuration)
 				},
 				commandType: CommandType.StoredProcedure);
 	}
+
+	public async Task CreateState(Session session)
+	{
+		var document = new SessionStateDocument(session.Board.BoardState);
+
+		using var connection = new SqlConnection(this.connectionString);
+		await connection.ExecuteAsync(
+			"session.CreateState",
+			new
+			{
+				SessionId = session.Id.ToString(),
+				Document = JsonSerializer.Serialize(document)
+			},
+			commandType: CommandType.StoredProcedure);
+	}
 }