create sgf

Author: Christopher Strauss

src/main/client/src/feature/game/BoardSettings.jsx

@@ -6,6 +6,7 @@ import {
   FaVolumeUp,
   FaSearchPlus,
   FaSearchMinus,
+  FaDownload,
 } from "react-icons/fa"
 import {
   useMuteStore,
@@ -14,11 +15,14 @@ import {
   useViewStateStore,
 } from "src/layout.js"
 
-export function BoardSettings() {
+export function BoardSettings({gameState, setGameState}) {
+  
+
   return (
     <div className="absolute pl-2 pt-1 flex flex-col items-center">
       <MuteIcon />
       <Zoom />
+      <SaveGameFile gameState={gameState} setGameState={setGameState} />
     </div>
   )
 }
@@ -66,3 +70,19 @@ function Zoom() {
     </>
   )
 }
+
+function SaveGameFile({gameState}) {
+  return (
+    <a
+      href={"/app/api/sgf/" + gameState.id + "/" + gameState.black + "_vs_" + gameState.white + ".sgf"}
+      target="_blank"
+      download={gameState.id + "_" + gameState.black + "_vs_" + gameState.white + ".sgf"}
+      className="mt-[0.25rem]">
+      <IconContext.Provider value={{
+        size: "1.5em",
+      }}>
+        <FaDownload />
+      </IconContext.Provider>
+    </a>
+  )
+}

src/main/client/src/feature/game/Game.jsx

@@ -69,7 +69,7 @@ export function Game() {
     <div
       style={{ width: vw() - sidebarWidth }}
       className="h-full">
-      <BoardSettings />
+      <BoardSettings gameState={gameState} setGameState={setGameState} />
       <Board gameState={gameState} setGameState={setGameState} />
       <GamePanel gameState={gameState} setGameState={setGameState} />
     </div>

src/main/java/com/bernd/GameController.java

@@ -11,7 +11,15 @@
 import com.bernd.model.OpenGame;
 import com.bernd.model.ViewGame;
 import com.bernd.util.RandomString;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.security.Principal;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import org.springframework.core.io.InputStreamResource;
+import org.springframework.core.io.Resource;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.messaging.core.MessageSendingOperations;
 import org.springframework.messaging.handler.annotation.MessageMapping;
@@ -23,8 +31,6 @@
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.server.ResponseStatusException;
 
-import java.security.Principal;
-
 import static com.bernd.util.Auth.getPrincipal;
 import static com.bernd.util.Util.COLORS;
 
@@ -144,4 +150,47 @@ public ResponseEntity<?> accept(@RequestBody AcceptRequest acceptRequest) {
     operations.convertAndSend("/topic/lobby/active_games", activeGames.games());
     return ResponseEntity.ok().build();
   }
+
+  @GetMapping("/api/sgf/{id}/{black}_vs_{white}.sgf")
+  public ResponseEntity<Resource> getSgf(
+      @PathVariable String id, @PathVariable String black, @PathVariable String white) throws IOException {
+    int asciiAddOn = 97;
+    SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
+    Game game = games.get(id);
+    StringBuilder stringBuilder = new StringBuilder();
+    if (game.moves() != null) {
+      stringBuilder.append("(;");
+      stringBuilder
+          .append("FF[4]\n")
+          .append("CA[UTF-8]\n")
+          .append("GM[1]\n")
+          .append("DT[" + formatter.format(new Date()) + "]\n")
+          .append("PC[localhost]\n")
+          .append("GN[" + game.id() + "]\n")
+          .append("PB[" + black + "]\n")
+          .append("PW[" + white + "]\n")
+          .append("RE[" + (game.gameHasEnded() ? game.getScore() : "?") + "]\n")
+          .append("SZ[" + game.dim() + "]\n");
+      for (Move move : game.moves().moves()) {
+        stringBuilder
+            .append(";")
+            .append(Board.getColorFromValue(move.color()))
+            .append("[")
+            .append((char) (move.x() + asciiAddOn))
+            .append((char) (move.y() + asciiAddOn));
+        if (move == game.getLastMove()) {
+          stringBuilder
+              .append("]");
+        } else {
+          stringBuilder
+              .append("]\n");
+        }
+      }
+      stringBuilder.append(")");
+    }
+    ByteArrayInputStream bais = new ByteArrayInputStream(stringBuilder.toString().getBytes());
+    InputStreamResource resource = new InputStreamResource(bais);
+
+    return ResponseEntity.ok().contentLength(stringBuilder.length()).contentType(MediaType.TEXT_PLAIN).body(resource);
+  }
 }

src/main/java/com/bernd/game/Board.java

@@ -111,4 +111,12 @@ public static int[][] removeDeadStonesAround(
     }
     return result;
   }
+
+  public static String getColorFromValue(int value) {
+    if (value == 32) {
+      return "B";
+    }
+    return "W";
+  }
+
 }