From b4d619d12f3b983c188ca94826e101928016f013 Mon Sep 17 00:00:00 2001
From: Benjamin Auder <benjamin.auder@somewhere>
Date: Fri, 8 Feb 2019 16:27:44 +0100
Subject: [PATCH] Work on sockets + challenge system

---
 _tmp/TODO                 |   8 ++
 client/src/views/Hall.vue | 173 ++++++++++++++++++++---------------
 server/sockets.js         | 183 ++++++++++++--------------------------
 3 files changed, 167 insertions(+), 197 deletions(-)

diff --git a/_tmp/TODO b/_tmp/TODO
index 02787bf3..86d36fe3 100644
--- a/_tmp/TODO
+++ b/_tmp/TODO
@@ -1,3 +1,11 @@
+--> correspondance: stocker sur serveur lastMove + uid + color + movesCount + gameId + variant + timeleft
+fin de partie corr: supprimer partie du serveur au bout de 7 jours (arbitraire)
+// TODO: au moins l'échange des coups en P2P ? et game chat ?
+
+// TODO: surligner "hall" (menu) si nouveau défi perso (reçu) et pas affichage courant
+// de même surligner "my games" si c'est à nous de jouer dans une partie (corr)
+// ==> myGames componentn + Game component must listen for "new move" events
+
 Hall + problems : similar pages, with "New game[problem]" button
 with a list of variants.
 --> but display all challenges (and all problems)
diff --git a/client/src/views/Hall.vue b/client/src/views/Hall.vue
index 674305a2..145d8987 100644
--- a/client/src/views/Hall.vue
+++ b/client/src/views/Hall.vue
@@ -1,3 +1,5 @@
+<!-- Main playing hall: online players + current challenges + button "new game" -->
+
 <template lang="pug">
 main
   input#modalNewgame.modal(type="checkbox")
@@ -15,10 +17,10 @@ main
           option(v-show="possibleNbplayers(3)" value="3") 3
           option(v-show="possibleNbplayers(4)" value="4") 4
       fieldset
-        label(for="timeControl") Time control (e.g. 3m, 1h+30s, 7d+1d)
+        label(for="timeControl") {{ st.tr["Time control"] }}
         input#timeControl(type="text" v-model="newchallenge.timeControl"
-          placeholder="Time control")
-      fieldset
+          placeholder="3m+2s, 1h+30s, 7d+1d ...")
+      fieldset(v-if="st.user.id > 0")
         label(for="selectPlayers") {{ st.tr["Play with? (optional)"] }}
         #selectPlayers
           input(type="text" v-model="newchallenge.to[0].name")
@@ -26,10 +28,10 @@ main
             v-model="newchallenge.to[1].name")
           input(v-show="newchallenge.nbPlayers==4" type="text"
             v-model="newchallenge.to[2].name")
-      fieldset
+      fieldset(v-if="st.user.id > 0")
         label(for="inputFen") {{ st.tr["FEN (optional)"] }}
         input#inputFen(type="text" v-model="newchallenge.fen")
-      button(@click="newChallenge") Send challenge
+      button(@click="newChallenge") {{ st.tr["Send challenge"] }}
   .row
     .col-sm-12.col-md-5.col-md-offset-1.col-lg-4.col-lg-offset-2
       .button-group
@@ -39,8 +41,8 @@ main
         :challenges="challenges" @click-challenge="clickChallenge")
       #players(v-show="cpdisplay=='players'")
         h3 Online players
-        //TODO: uniquePlayers, show "5 anonymous", and do nothing on click on anonymous
-        div(v-for="p in uniquePlayers" @click="challenge(p)") {{ p.name }}
+        div(v-for="p in uniquePlayers" @click="tryChallenge(p)")
+          | {{ p.name + (!!p.count ? " ("+p.count+")" : "") }}
   .row
     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
       button(onClick="doClick('modalNewgame')") New game
@@ -56,37 +58,6 @@ main
 </template>
 
 <script>
-// TODO: blank time control == untimed
-// main playing hall: online players + current challenges + button "new game"
-// TODO: si on est en train de jouer une partie, le notifier aux nouveaux connectés
-/*
-TODO: surligner si nouveau défi perso et pas affichage courant
-(cadences base + incrément, corr == incr >= 1jour ou base >= 7j)
---> correspondance: stocker sur serveur lastMove + uid + color + movesCount + gameId + variant + timeleft
-fin de partie corr: supprimer partie du serveur au bout de 7 jours (arbitraire)
-*/
-// TODO: au moins l'échange des coups en P2P ? et game chat ?
-// TODO: objet game, objet challenge ? et player ?
-/*
- * Possible events:
- *  - send new challenge (corr or live, cf. time control), with button or click on player
- *  - accept challenge (corr or live) --> send info to all concerned players
- *  - cancel challenge (click on sent challenge) --> send info to all concerned players
- *  - withdraw from challenge (if >= 3 players and previously accepted)
- *    --> send info to all concerned players
- *  - prepare and start new game (if challenge is full after acceptation)
- *    Also send to all connected players (only from me)
- *  - receive "player connect": send all our current challenges (to him or global)
- *    Also send all our games (live - max 1 - and corr) [in web worker ?]
- *    + all our sent challenges.
- *  - receive "playergames": list of games by some connected player (NO corr)
- *  - receive "playerchallenges": list of challenges (sent) by some online player (NO corr)
- *  - receive "player disconnect": remove from players list
- *  - receive "accept/withdraw/cancel challenge": apply action to challenges list
- *  - receive "new game": if live, store locally + redirect to game
- *    If corr: notify "new game has started", give link, but do not redirect
- *  - receive new challenge: if targeted, replace our name with sender name
-*/
 import { store } from "@/store";
 import { NbPlayers } from "@/data/nbPlayers";
 import { checkChallenge } from "@/data/challengeCheck";
@@ -103,12 +74,12 @@ export default {
   data: function () {
     return {
       st: store.state,
+      cpdisplay: "challenges",
       gdisplay: "live",
       liveGames: [],
       corrGames: [],
+      challenges: [],
       players: [], //online players
-      challenges: [], //live challenges
-      willPlay: [], //IDs of challenges in which I decide to play (>= 3 players)
       newchallenge: {
         fen: "",
         vid: 0,
@@ -124,6 +95,20 @@ export default {
       },
     };
   },
+  computed: {
+    uniquePlayers: function() {
+      // Show e.g. "5 @nonymous", and do nothing on click on anonymous
+      let playerList = [{id:0, name:"@nonymous", count:0}];
+      this.players.forEach(p => {
+        if (p.id > 0)
+          playerList.push(p);
+        else
+          playerList[0].count++;
+      });
+      return playerList;
+    },
+  },
+  // TODO: this looks ugly... (use VueX ?!)
   watch: {
     "st.conn": function() {
       this.st.conn.onmessage = this.socketMessageListener;
@@ -132,23 +117,45 @@ export default {
   },
   created: function() {
     // TODO: ask server for current corr games (all but mines: names, ID, time control)
+    // also ask for corr challenges
+    // TODO: add myself to players
+    // --> when sending something, send to all players but NOT me !
     if (!!this.st.conn)
     {
       this.st.conn.onmessage = this.socketMessageListener;
       this.st.conn.onclose = this.socketCloseListener;
     }
+    this.players.push(this.st.user);
   },
   methods: {
     socketMessageListener: function(msg) {
       const data = JSON.parse(msg.data);
       switch (data.code)
       {
+// *  - receive "new game": if live, store locally + redirect to game
+// *    If corr: notify "new game has started", give link, but do not redirect
         case "newgame":
           // TODO: new game just started: data contain all informations
           // (id, players, time control, fenStart ...)
+          // + cid to remove challenge from list
+          break;
+// *  - receive "playergame": a live game by some connected player (NO corr)
+        case "playergame":
+          // TODO: receive live game summary (update, count moves)
+          // (just players names, time control, and ID + player ID)
+          break;
+// *  - receive "playerchallenges": list of challenges (sent) by some online player (NO corr)
+        case "playerchallenges":
+          // TODO: receive challenge + challenge updates
           break;
-        // TODO: also receive live games summaries (update)
-        // (just players names, time control, and ID + player ID)
+        case "newmove": //live or corr
+          // TODO: name conflict ? (game "newmove" event)
+          break;
+// *  - receive new challenge: if targeted, replace our name with sender name
+        case "newchallenge":
+          // receive live or corr challenge
+          break;
+// *  - receive "accept/withdraw/cancel challenge": apply action to challenges list
         case "acceptchallenge":
           if (true) //TODO: if challenge is full
             this.newGame(data.challenge, data.user); //user.id et user.name
@@ -162,10 +169,18 @@ export default {
         case "cancelchallenge":
           ArrayFun.remove(this.challenges, c => c.id == data.cid);
           break;
-        case "hallconnect":
+// NOTE: finally only one connect / disconnect couple of events
+// (because on server side we wouldn't know which to choose)
+        case "connect":
+// *  - receive "player connect": send all our current challenges (to him or global)
+// *    Also send all our games (live - max 1 - and corr) [in web worker ?]
+// *    + all our sent challenges.
           this.players.push({name:data.name, id:data.uid});
+          // TODO: si on est en train de jouer une partie, le notifier au nouveau connecté
+          // envoyer aussi nos défis
           break;
-        case "halldisconnect":
+// *  - receive "player disconnect": remove from players list
+        case "disconnect":
           ArrayFun.remove(this.players, p => p.id == data.uid);
           // TODO: also remove all challenges sent by this player,
           // and all live games where he plays and no other opponent is online
@@ -173,20 +188,35 @@ export default {
       }
     },
     socketCloseListener: function() {
-      this.st.conn.addEventListener('message', socketMessageListener);
-      this.st.conn.addEventListener('close', socketCloseListener);
-    },
-    clickPlayer: function() {
-      //this.newgameInfo.players[0].name = clickPlayer.name;
-      //show modal;
+      // connexion is reinitialized in store.js
+      this.st.conn.addEventListener('message', this.socketMessageListener);
+      this.st.conn.addEventListener('close', this.socketCloseListener);
     },
     showGame: function(game) {
       // NOTE: if we are an observer, the game will be found in main games list
       // (sent by connected remote players)
+      // TODO: game path ? /vname/gameId seems better
       this.$router.push("/" + game.id)
     },
-    challenge: function(player) {
+    tryChallenge: function(player) {
+      if (player.id == 0)
+        return; //anonymous players cannot be challenged
+      this.newchallenge.players[0] = {
+        name: player.name,
+        id: player.id,
+        sid: player.sid,
+      };
+      doClick("modalNewgame");
     },
+// *  - accept challenge (corr or live) --> send info to all concerned players
+// *  - cancel challenge (click on sent challenge) --> send info to all concerned players
+// *  - withdraw from challenge (if >= 3 players and previously accepted)
+// *    --> send info to all concerned players
+// *  - refuse challenge (or receive refusal): send to all challenge players (from + to)
+// *    except us ; graphics: modal again ? (inline ?)
+// *  - prepare and start new game (if challenge is full after acceptation)
+// *    --> include challenge ID (so that opponents can delete the challenge too)
+// *    Also send to all connected players (only from me)
     clickChallenge: function(challenge) {
       const index = this.challenges.findIndex(c => c.id == challenge.id);
       const toIdx = challenge.to.findIndex(p => p.id == user.id);
@@ -214,18 +244,19 @@ export default {
       // si pas le mien et FEN speciale :: (charger code variante et)
       // montrer diagramme + couleur (orienté)
     },
-    // user: last person to accept the challenge
-    newGame: function(chall, user) {
-      const fen = chall.fen || V.GenRandInitFen();
-      const game = {}; //TODO: fen, players, time ...
-      //setStorage(game); //TODO
-      game.players.forEach(p => { //...even if game is by corr (could be played live, why not...)
-        this.conn.send(
-          JSON.stringify({code:"newgame", oppid:p.id, game:game}));
-      });
-      if (this.settings.sound >= 1)
-        new Audio("/sounds/newgame.mp3").play().catch(err => {});
-    },
+    // user: last person to accept the challenge (TODO: revoir ça)
+//    newGame: function(chall, user) {
+//      const fen = chall.fen || V.GenRandInitFen();
+//      const game = {}; //TODO: fen, players, time ...
+//      //setStorage(game); //TODO
+//      game.players.forEach(p => { //...even if game is by corr (could be played live, why not...)
+//        this.conn.send(
+//          JSON.stringify({code:"newgame", oppid:p.id, game:game}));
+//      });
+//      if (this.settings.sound >= 1)
+//        new Audio("/sounds/newgame.mp3").play().catch(err => {});
+//    },
+    // Send new challenge (corr or live, cf. time control), with button or click on player
     newChallenge: async function() {
       const idxInVariants =
         this.st.variants.findIndex(v => v.id == this.newchallenge.vid);
@@ -251,6 +282,7 @@ export default {
           p.sid = this.players[pIdx].sid;
         }
       }
+      // TODO: clarify challenge format (too many fields for now :/ )
       const finishAddChallenge = (cid) => {
         const chall = Object.assign(
           {},
@@ -263,12 +295,9 @@ export default {
           }
         );
         this.challenges.push(chall);
-        document.getElementById("modalNewgame").checked = false;
-      };
-      if (liveGame)
-      {
+        // Send challenge to peers
         const chall = JSON.stringify({
-          code: "sendchallenge",
+          code: "newchallenge",
           sender: {name:this.st.user.name, id:this.st.user.id, sid:this.st.user.sid},
         });
         if (this.newchallenge.to[0].id > 0)
@@ -284,12 +313,16 @@ export default {
           // Open challenge: send to all connected players
           this.players.forEach(p => { this.st.conn.send(chall); });
         }
+        document.getElementById("modalNewgame").checked = false;
+      };
+      if (liveGame)
+      {
         // Live challenges have cid = 0
         finishAddChallenge(0);
       }
-      else //correspondance game:
+      else
       {
-        // Possible (server) error if filled player does not exist
+        // Correspondance game: send challenge to server
         ajax(
           "/challenges/" + this.newchallenge.vid,
           "POST",
diff --git a/server/sockets.js b/server/sockets.js
index 80e4c442..1d2f9400 100644
--- a/server/sockets.js
+++ b/server/sockets.js
@@ -29,8 +29,7 @@ function remInArray(arr, item)
 //TODO: programmatic re-navigation on current game if we receive a move and are not there
 
 module.exports = function(wss) {
-	let clients = {}; //associative array client sid --> {socket, curPath}
-	let pages = {}; //associative array path --> array of client sid
+	let clients = {}; //associative array client sid --> socket
 	// No-op function as a callback when sending messages
 	const noop = () => { };
 	wss.on("connection", (socket, req) => {
@@ -39,130 +38,60 @@ module.exports = function(wss) {
 		// Ignore duplicate connections (on the same live game that we play):
 		if (!!clients[sid])
 			return socket.send(JSON.stringify({code:"duplicate"}));
-		// We don't know yet on which page the user will be
-		clients[sid] = {socket: socket, path: ""};
-
-//		socket.on("message", objtxt => {
-//			let obj = JSON.parse(objtxt);
-//			switch (obj.code)
-//			{
-//				case "enter":
-//					if (clients[sid].path.length > 0)
-//						remInArray(pages[clients[sid].path], sid);
-//					clients[sid].path = obj.path;
-//					pages[obj.path].push(sid);
-//					// TODO also: notify "old" sub-room that I left (if it was not index)
-//					if (obj.path == "/")
-//					{
-//						// Send counting info
-//						let countings = {};
-//						Object.keys(pages).forEach(
-//							path => { countings[path] = pages[path].length; });
-//						socket.send(JSON.stringify({code:"counts",counts:countings}));
-//					}
-//					else
-//					{
-//						// Send to every client connected on index an update message for counts
-//						pages["/"].forEach((id) => {
-//							clients[id].socket.send(
-//								JSON.stringify({code:"increase",path:obj.path}), noop);
-//						});
-//						// TODO: do not notify anything in rules and problems sections (no socket required)
-//						// --> in fact only /Atomic (main hall) and inside a game: /Atomic/392f3ju
-//						// Also notify the (sub-)room (including potential opponents):
-//						Object.keys(clients[page]).forEach( k => {
-//							clients[page][k].send(JSON.stringify({code:"connect",id:sid}), noop);
-//						});
-//						// Finally, receive (sub-)room composition
-//						// TODO.
-//					}
-//// NOTE: no "leave" counterpart (because it's always to enter somewhere else)
-////				case "leave":
-////					break;
-//				// Transmit chats and moves to current room
-//				// TODO: WebRTC instead in this case (most demanding?)
-//				case "newchat":
-//					if (!!clients[page][obj.oppid])
-//					{
-//						clients[page][obj.oppid].send(
-//							JSON.stringify({code:"newchat",msg:obj.msg}), noop);
-//					}
-//					break;
-//				case "newmove":
-//					if (!!clients[page][obj.oppid])
-//					{
-//						clients[page][obj.oppid].send(
-//							JSON.stringify({code:"newmove",move:obj.move}), noop);
-//					}
-//					break;
-//
-//
-//				// TODO: generalize that for several opponents
-//				case "ping":
-//					if (!!clients[page][obj.oppid])
-//						socket.send(JSON.stringify({code:"pong",gameId:obj.gameId}));
-//					break;
-//				case "lastate":
-//					if (!!clients[page][obj.oppid])
-//					{
-//						const oppId = obj.oppid;
-//						obj.oppid = sid; //I'm oppid for my opponent
-//						clients[page][oppId].send(JSON.stringify(obj), noop);
-//					}
-//					break;
-//				// TODO: moreover, here, game info should be sent (through challenge; not stored here)
-//				case "newgame":
-//					if (!!games[page])
-//					{
-//						// Start a new game
-//						const oppId = games[page]["id"];
-//						const fen = games[page]["fen"];
-//						const gameId = games[page]["gameid"];
-//						delete games[page];
-//						const mycolor = (Math.random() < 0.5 ? 'w' : 'b');
-//						socket.send(JSON.stringify(
-//							{code:"newgame",fen:fen,oppid:oppId,color:mycolor,gameid:gameId}));
-//						if (!!clients[page][oppId])
-//						{
-//							clients[page][oppId].send(
-//								JSON.stringify(
-//									{code:"newgame",fen:fen,oppid:sid,color:mycolor=="w"?"b":"w",gameid:gameId}),
-//								noop);
-//						}
-//					}
-//					else
-//						games[page] = {id:sid, fen:obj.fen, gameid:obj.gameid}; //wait for opponent
-//					break;
-//				case "cancelnewgame": //if a user cancel his seek
-//					// TODO: just transmit event
-//					//delete games[page];
-//					break;
-//				// TODO: also other challenge events
-//				case "resign":
-//					if (!!clients[page][obj.oppid])
-//						clients[page][obj.oppid].send(JSON.stringify({code:"resign"}), noop);
-//					break;
-//				// TODO: case "challenge" (get ID) --> send to all, "acceptchallenge" (with ID) --> send to all, "cancelchallenge" --> send to all
-//				// also, "sendgame" (give current game info, if any) --> to new connections, "sendchallenges" (same for challenges) --> to new connections
-//			}
-//		});
-//		socket.on("close", () => {
-//			delete clients[sid];
-//			// TODO: carefully delete pages[.........]
-//			// + adapt below:
-//			if (page != "/")
-//			{
-//				// Send to every client connected on index an update message for counts
-//				Object.keys(clients["index"]).forEach( k => {
-//					clients["index"][k].send(
-//						JSON.stringify({code:"decrease",vid:page}), noop);
-//				});
-//			}
-//			// Also notify potential opponents:
-//			// hit all clients which check if sid corresponds
-//			Object.keys(clients[page]).forEach( k => {
-//				clients[page][k].send(JSON.stringify({code:"disconnect",id:sid}), noop);
-//			});
-//		});
+		clients[sid] = socket;
+		socket.on("message", objtxt => {
+			let obj = JSON.parse(objtxt);
+      if (!!obj.oppid && !clients[oppid])
+        return; //receiver not connected, nothing we can do
+			switch (obj.code)
+			{
+				// Transmit chats and moves to current room
+				// TODO: WebRTC instead in this case (most demanding?)
+				case "newchat":
+          clients[obj.oppid].send(JSON.stringify({code:"newchat",msg:obj.msg}), noop);
+					break;
+				case "newmove":
+          clients[obj.oppid].send(JSON.stringify({code:"newmove",move:obj.move}), noop);
+					break;
+				// TODO: generalize that for several opponents
+				case "ping":
+					socket.send(JSON.stringify({code:"pong",gameId:obj.gameId}));
+					break;
+				case "lastate":
+          const oppId = obj.oppid;
+          obj.oppid = sid; //I'm oppid for my opponent
+          clients[oppId].send(JSON.stringify(obj), noop);
+					break;
+				// TODO: moreover, here, game info should be sent (through challenge; not stored here)
+				case "newgame":
+          clients[oppId].send(
+            JSON.stringify(
+              {code:"newgame",fen:fen,oppid:sid,color:"w",gameid:"TODO"}),
+            noop);
+					break;
+				case "cancelnewgame": //if a user cancel his seek
+					// TODO: just transmit event
+					//delete games[page];
+					break;
+				// TODO: also other challenge events
+				case "resign":
+          clients[obj.oppid].send(JSON.stringify({code:"resign"}), noop);
+					break;
+				// TODO: case "challenge" (get ID) --> send to all, "acceptchallenge" (with ID) --> send to all, "cancelchallenge" --> send to all
+				// also, "sendgame" (give current game info, if any) --> to new connections, "sendchallenges" (same for challenges) --> to new connections
+        case "newchallenge":
+          console.log("challenge received");
+          console.log(obj.sender);
+          console.log(obj);
+          break;
+			}
+		});
+		socket.on("close", () => {
+			delete clients[sid];
+      // Notify every other connected client
+      Object.keys(clients).forEach( k => {
+        clients[k].send(JSON.stringify({code:"disconnect",sid:sid}), noop);
+      });
+		});
 	});
 }
-- 
2.44.0