add game visualizer

.gitmodules

@@ -40,3 +40,6 @@
 [submodule "public/vendor/bar-rating"]
 	path = public/vendor/bar-rating
 	url = https://github.com/antennaio/jquery-bar-rating
+[submodule "public/visualizer"]
+	path = public/visualizer
+	url = https://github.com/ornicar/chess_game_visualizer

app/controllers/Export.scala

@@ -18,24 +18,33 @@ object Export extends LilaController {
   def pgn(id: String) = Open { implicit ctx =>
     OnlyHumans {
       lila.mon.export.pgn.game()
-      OptionFuResult(GameRepo game id) {
-        case game if game.playable => NotFound("Can't export PGN of game in progress").fuccess
-        case game => (game.pgnImport.ifTrue(get("as") contains "imported") match {
-          case Some(i) => fuccess(i.pgn)
-          case None => for {
-            initialFen <- GameRepo initialFen game
-            pgn = Env.api.pgnDump(game, initialFen)
-            analysis ← !get("as").contains("raw") ?? (Env.analyse.analyser get game.id)
-          } yield Env.analyse.annotator(pgn, analysis, game.opening, game.winnerColor, game.status, game.clock).toString
-        }) map { content =>
-          Ok(content).withHeaders(
-            CONTENT_TYPE -> ContentTypes.TEXT,
-            CONTENT_DISPOSITION -> ("attachment; filename=" + (Env.api.pgnDump filename game)))
-        }
+      OptionFuResult(GameRepo game id) { game =>
+        gameToPgn(
+          game,
+          asImported = get("as") contains "imported",
+          asRaw = get("as").contains("raw")) map { content =>
+            Ok(content).withHeaders(
+              CONTENT_TYPE -> ContentTypes.TEXT,
+              CONTENT_DISPOSITION -> ("attachment; filename=" + (Env.api.pgnDump filename game)))
+          } recover {
+            case err => NotFound(err.getMessage)
+          }
       }
     }
   }
 
+  private def gameToPgn(from: GameModel, asImported: Boolean, asRaw: Boolean): Fu[String] = from match {
+    case game if game.playable => fufail("Can't export PGN of game in progress")
+    case game => (game.pgnImport.ifTrue(asImported) match {
+      case Some(i) => fuccess(i.pgn)
+      case None => for {
+        initialFen <- GameRepo initialFen game
+        pgn = Env.api.pgnDump(game, initialFen)
+        analysis ← !asRaw ?? (Env.analyse.analyser get game.id)
+      } yield Env.analyse.annotator(pgn, analysis, game.opening, game.winnerColor, game.status, game.clock).toString
+    })
+  }
+
   private val PdfRateLimitGlobal = new lila.memo.RateLimit(
     credits = 20,
     duration = 1 minute,
@@ -74,6 +83,22 @@ object Export extends LilaController {
     }
   }
 
+  def visualizer(id: String) = Open { implicit ctx =>
+    OptionFuResult(GameRepo game id) { game =>
+      gameToPgn(game, asImported = true, asRaw = true) map { pgn =>
+        lila.mon.export.visualizer()
+        Redirect {
+          import lila.api.Env.current.Net._
+          val base = s"$Protocol$AssetDomain/assets"
+          val encoded = java.net.URLEncoder.encode(pgn.toString, "UTF-8")
+          s"$base/visualizer/index_lichess.html?pgn=$encoded"
+        }
+      } recoverWith {
+        case _: Exception => notFound
+      }
+    }
+  }
+
   def puzzlePng(id: Int) = Open { implicit ctx =>
     OnlyHumansAndFacebook {
       PngRateLimitGlobal("-", msg = HTTPRequest lastRemoteAddress ctx.req) {

app/views/analyse/replay.scala.html

@@ -64,17 +64,19 @@ atom = atom.some) {
     <div class="panel fen_pgn">
       <p><strong>FEN</strong><input type="input" readonly="true" spellcheck="false" class="copyable autoselect fen" /></p>
       <p><strong>PGN</strong>
-        <a data-icon="x" rel="nofollow" href="@routes.Export.pgn(game.id)"> @trans.downloadAnnotated()</a>
+        <a data-icon="x" class="text" rel="nofollow" href="@routes.Export.pgn(game.id)">@trans.downloadAnnotated()</a>
         @if(analysis.isDefined) {
         /
-        <a data-icon="x" rel="nofollow" href="@routes.Export.pgn(game.id)?as=raw"> @trans.downloadRaw()</a>
+        <a data-icon="x" class="text" rel="nofollow" href="@routes.Export.pgn(game.id)?as=raw">@trans.downloadRaw()</a>
         }
         @if(game.isPgnImport) {
         /
-        <a data-icon="x" rel="nofollow" href="@routes.Export.pgn(game.id)?as=imported"> @trans.downloadImported()</a>
+        <a data-icon="x" class="text" rel="nofollow" href="@routes.Export.pgn(game.id)?as=imported">@trans.downloadImported()</a>
         }
         /
-        <a data-icon="x" target="_blank" rel="nofollow" href="@cdnUrl(routes.Export.pdf(game.id).url)"> @trans.printFriendlyPDF()</a>
+        <a data-icon="x" class="text" target="_blank" rel="nofollow" href="@cdnUrl(routes.Export.pdf(game.id).url)">@trans.printFriendlyPDF()</a>
+        /
+        <a data-icon="x" class="text" target="_blank" href="@routes.Export.visualizer(game.id)">Generate images</a>
       </p>
       <div class="pgn">@Html(nl2br(escapeHtml(pgn)))</div>
     </div>

conf/routes

@@ -256,6 +256,7 @@ POST  /$gameId<\w{8}>/request-analysis        controllers.Analyse.requestAnalysi
 GET   /game/export/$gameId<\w{8}>.pgn         controllers.Export.pgn(gameId: String)
 GET   /game/export/pdf/$gameId<\w{8}>.pdf     controllers.Export.pdf(gameId: String)
 GET   /game/export/png/$gameId<\w{8}>.png     controllers.Export.png(gameId: String)
+GET   /game/visualizer/$gameId<\w{8}>         controllers.Export.visualizer(gameId: String)
 
 # Fishnet
 POST  /fishnet/acquire                        controllers.Fishnet.acquire

modules/common/src/main/mon.scala

@@ -379,6 +379,7 @@ object mon {
       def puzzle = inc("export.png.puzzle")
     }
     def pdf = inc("export.pdf.game")
+    def visualizer = inc("export.visualizer.game")
   }
 
   def measure[A](path: RecPath)(op: => A) = {

public/visualizer

@@ -0,0 +1 @@
+Subproject commit 64e15a1f0e95f6e79735e24f30dda9f9042f6053