Before changing Piece[,] to Dictionary<string,Piece>

Gameboard.ShogiUI.Sockets/Repositories/CouchModels/BoardStateDocument.cs

@@ -0,0 +1,57 @@
+using Gameboard.ShogiUI.Sockets.ServiceModels.Socket.Types;
+using System;
+using System.Linq;
+
+namespace Gameboard.ShogiUI.Sockets.Repositories.CouchModels
+{
+  public class BoardStateDocument : CouchDocument
+  {
+    public string Name { get; set; }
+
+    public Piece?[,] Board { get; set; }
+
+    public Piece[] Player1Hand { get; set; }
+
+    public Piece[] Player2Hand { get; set; }
+
+    /// <summary>
+    /// Move is null for first BoardState of a session - before anybody has made moves.
+    /// </summary>
+    public Move? Move { get; set; }
+
+    /// <summary>
+    /// Default constructor and setters are for deserialization.
+    /// </summary>
+    public BoardStateDocument() : base(WhichDocumentType.BoardState)
+    {
+      Name = string.Empty;
+      Board = new Piece[9, 9];
+      Player1Hand = Array.Empty<Piece>();
+      Player2Hand = Array.Empty<Piece>();
+    }
+
+    public BoardStateDocument(string sessionName, Models.Shogi shogi)
+      : base($"{sessionName}-{DateTime.Now:O}", WhichDocumentType.BoardState)
+    {
+      Name = sessionName;
+      Board = new Piece[9, 9];
+
+      for (var x = 0; x < 9; x++)
+        for (var y = 0; y < 9; y++)
+        {
+          var piece = shogi.Board[y, x];
+          if (piece != null)
+          {
+            Board[y, x] = new Piece(piece);
+          }
+        }
+
+      Player1Hand = shogi.Hands[WhichPlayer.Player1].Select(model => new Piece(model)).ToArray();
+      Player2Hand = shogi.Hands[WhichPlayer.Player2].Select(model => new Piece(model)).ToArray();
+      if (shogi.MoveHistory.Count > 0)
+      {
+        Move = new Move(shogi.MoveHistory[^1]);
+      }
+    }
+  }
+}