Saving snapshots

Shogi.Api/Repositories/Dto/SessionState/Piece.cs

@@ -0,0 +1,34 @@
+namespace Shogi.Api.Repositories.Dto.SessionState;
+
+public class Piece
+{
+	public bool IsPromoted { get; set; }
+	public WhichPiece WhichPiece { get; set; }
+	public WhichPlayer Owner { get; set; }
+
+	public Piece() { }
+
+	public Piece(Domain.ValueObjects.Piece piece)
+	{
+		IsPromoted = piece.IsPromoted;
+		WhichPiece = piece.WhichPiece switch
+		{
+			Domain.ValueObjects.WhichPiece.Bishop => WhichPiece.Bishop,
+			Domain.ValueObjects.WhichPiece.GoldGeneral => WhichPiece.GoldGeneral,
+			Domain.ValueObjects.WhichPiece.King => WhichPiece.King,
+			Domain.ValueObjects.WhichPiece.SilverGeneral => WhichPiece.SilverGeneral,
+			Domain.ValueObjects.WhichPiece.Rook => WhichPiece.Rook,
+			Domain.ValueObjects.WhichPiece.Knight => WhichPiece.Knight,
+			Domain.ValueObjects.WhichPiece.Lance => WhichPiece.Lance,
+			Domain.ValueObjects.WhichPiece.Pawn => WhichPiece.Pawn,
+			_ => throw new NotImplementedException()
+		};
+
+		Owner = piece.Owner switch
+		{
+			Domain.ValueObjects.WhichPlayer.Player1 => WhichPlayer.Player1,
+			Domain.ValueObjects.WhichPlayer.Player2 => WhichPlayer.Player2,
+			_ => throw new NotImplementedException()
+		};
+	}
+}

Shogi.Api/Repositories/Dto/SessionState/SessionStateDocument.cs

@@ -0,0 +1,69 @@
+namespace Shogi.Api.Repositories.Dto.SessionState;
+
+public class SessionStateDocument
+{
+	public long Id { get; set; }
+
+	public Dictionary<string, Piece?> Board { get; set; }
+
+	public WhichPiece[] Player1Hand { get; set; }
+
+	public WhichPiece[] Player2Hand { get; set; }
+
+	public WhichPlayer? PlayerInCheck { get; set; }
+
+	public WhichPlayer WhoseTurn { get; set; }
+
+	public bool IsGameOver { get; set; }
+
+	public string DocumentVersion { get; set; } = "1";
+
+	public SessionStateDocument() { }
+	public SessionStateDocument(Domain.ValueObjects.BoardState boardState)
+	{
+		this.Board = boardState.State.ToDictionary(
+			kvp => kvp.Key,
+			kvp => kvp.Value == null ? null : new Piece(kvp.Value));
+
+		this.Player1Hand = boardState.Player1Hand
+			.Select(piece => Map(piece.WhichPiece))
+			.ToArray();
+
+		this.Player2Hand = boardState.Player2Hand
+			.Select(piece => Map(piece.WhichPiece))
+			.ToArray();
+
+		this.PlayerInCheck = boardState.InCheck.HasValue
+			? Map(boardState.InCheck.Value)
+			: null;
+
+		this.IsGameOver = boardState.IsCheckmate;
+	}
+
+
+	static WhichPiece Map(Domain.ValueObjects.WhichPiece whichPiece)
+	{
+		return whichPiece switch
+		{
+			Domain.ValueObjects.WhichPiece.Bishop => WhichPiece.Bishop,
+			Domain.ValueObjects.WhichPiece.GoldGeneral => WhichPiece.GoldGeneral,
+			Domain.ValueObjects.WhichPiece.King => WhichPiece.King,
+			Domain.ValueObjects.WhichPiece.SilverGeneral => WhichPiece.SilverGeneral,
+			Domain.ValueObjects.WhichPiece.Rook => WhichPiece.Rook,
+			Domain.ValueObjects.WhichPiece.Knight => WhichPiece.Knight,
+			Domain.ValueObjects.WhichPiece.Lance => WhichPiece.Lance,
+			Domain.ValueObjects.WhichPiece.Pawn => WhichPiece.Pawn,
+			_ => throw new NotImplementedException()
+		};
+	}
+
+	static WhichPlayer Map(Domain.ValueObjects.WhichPlayer whichPlayer)
+	{
+		return whichPlayer switch
+		{
+			Domain.ValueObjects.WhichPlayer.Player1 => WhichPlayer.Player1,
+			Domain.ValueObjects.WhichPlayer.Player2 => WhichPlayer.Player2,
+			_ => throw new NotImplementedException()
+		};
+	}
+}

Shogi.Api/Repositories/Dto/SessionState/WhichPiece.cs

@@ -0,0 +1,13 @@
+namespace Shogi.Api.Repositories.Dto.SessionState;
+
+public enum WhichPiece
+{
+	King,
+	GoldGeneral,
+	SilverGeneral,
+	Bishop,
+	Rook,
+	Knight,
+	Lance,
+	Pawn
+}

Shogi.Api/Repositories/Dto/SessionState/WhichPlayer.cs

@@ -0,0 +1,7 @@
+namespace Shogi.Api.Repositories.Dto.SessionState;
+
+public enum WhichPlayer
+{
+	Player1,
+	Player2
+}

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);
+	}
 }