[vchess.git] / client / src / views / Hall.vue

<template lang="pug">
main
  input#modalNewgame.modal(type="checkbox")
  div(role="dialog" aria-labelledby="titleFenedit")
    .card.smallpad
      label#closeNewgame.modal-close(for="modalNewgame")
      fieldset
        label(for="selectVariant") {{ st.tr["Variant"] }}
        select#selectVariant(v-model="newchallenge.vid")
          option(v-for="v in st.variants" :value="v.id") {{ v.name }}
      fieldset
        label(for="timeControl") {{ st.tr["Time control"] }}
        input#timeControl(type="text" v-model="newchallenge.timeControl"
          placeholder="3m+2s, 1h+30s, 7d+1d ...")
      fieldset(v-if="st.user.id > 0")
        label(for="selectPlayers") {{ st.tr["Play with? (optional)"] }}
        input#selectPlayers(type="text" v-model="newchallenge.to")
      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") {{ st.tr["Send challenge"] }}
  .row
    .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
      button(onClick="doClick('modalNewgame')") New game
  .row
    .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
      .collapse
        input#challengeSection(type="radio" checked aria-hidden="true" name="accordion")
        label(for="challengeSection" aria-hidden="true") Challenges
        div
          .button-group
            button(@click="cdisplay='live'") Live Challenges
            button(@click="cdisplay='corr'") Correspondance challenges
          ChallengeList(v-show="cdisplay=='live'"
            :challenges="filterChallenges('live')" @click-challenge="clickChallenge")
          ChallengeList(v-show="cdisplay=='corr'"
            :challenges="filterChallenges('corr')" @click-challenge="clickChallenge")
        input#peopleSection(type="radio" aria-hidden="true" name="accordion")
        label(for="peopleSection" aria-hidden="true") People
        div
          .button-group
            button(@click="pdisplay='players'") Players
            button(@click="pdisplay='chat'") Chat
          #players(v-show="pdisplay=='players'")
            h3 Online players
            .player(v-for="p in uniquePlayers" @click="tryChallenge(p)"
              :class="{anonymous: !!p.count}"
            )
              | {{ p.name + (!!p.count ? " ("+p.count+")" : "") }}
          #chat(v-show="pdisplay=='chat'")
            h3 Chat (TODO)
        input#gameSection(type="radio" aria-hidden="true" name="accordion")
        label(for="gameSection" aria-hidden="true") Games
        div
          .button-group
            button(@click="gdisplay='live'") Live games
            button(@click="gdisplay='corr'") Correspondance games
          GameList(v-show="gdisplay=='live'" :games="filterGames('live')"
            @show-game="showGame")
          GameList(v-show="gdisplay=='corr'" :games="filterGames('corr')"
            @show-game="showGame")
</template>

<script>
import { store } from "@/store";
import { checkChallenge } from "@/data/challengeCheck";
import { ArrayFun } from "@/utils/array";
import { ajax } from "@/utils/ajax";
import { getRandString, shuffle } from "@/utils/alea";
import GameList from "@/components/GameList.vue";
import ChallengeList from "@/components/ChallengeList.vue";
import { GameStorage } from "@/utils/gameStorage";
export default {
  name: "my-hall",
  components: {
    GameList,
    ChallengeList,
  },
  data: function () {
    return {
      st: store.state,
      cdisplay: "live", //or corr
      pdisplay: "players", //or chat
      gdisplay: "live",
      games: [],
      challenges: [],
      people: [], //(all) online players
      newchallenge: {
        fen: "",
        vid: 0,
        to: "", //name of challenged player (if any)
        timeControl: "", //"2m+2s" ...etc
      },
    };
  },
  watch: {
    // st.variants changes only once, at loading from [] to [...]
    "st.variants": function(variantArray) {
      // Set potential challenges and games variant names:
      this.challenges.forEach(c => {
        if (c.vname == "")
          c.vname = this.getVname(c.vid);
      });
      this.games.forEach(g => {
        if (g.vname == "")
          g.vname = this.getVname(g.vid)
      });
    },
  },
  computed: {
    uniquePlayers: function() {
      // Show e.g. "@nonymous (5)", and do nothing on click on anonymous
      let anonymous = {id:0, name:"@nonymous", count:0};
      let playerList = [];
      this.people.forEach(p => {
        if (p.id > 0)
          playerList.push(p);
        else
          anonymous.count++;
      });
      if (anonymous.count > 0)
        playerList.push(anonymous);
      return playerList;
    },
  },
  created: function() {
    // Always add myself to players' list
    const my = this.st.user;
    this.people.push({sid:my.sid, id:my.id, name:my.name});
    // Retrieve live challenge (not older than 30 minute) if any:
    const chall = JSON.parse(localStorage.getItem("challenge") || "false");
    if (!!chall)
    {
      if ((Date.now() - chall.added)/1000 <= 30*60)
        this.challenges.push(chall);
      else
        localStorage.removeItem("challenge");
    }
    if (this.st.user.id > 0)
    {
      // Ask server for current corr games (all but mines)
      ajax(
        "/games",
        "GET",
        {uid: this.st.user.id, excluded: true},
        response => {
          this.games = this.games.concat(response.games.map(g => {
            const type = this.classifyObject(g);
            const vname = this.getVname(g.vid);
            return Object.assign({}, g, {type: type, vname: vname});
          }));
        }
      );
      // Also ask for corr challenges (open + sent to me)
      ajax(
        "/challenges",
        "GET",
        {uid: this.st.user.id},
        response => {
          // Gather all senders names, and then retrieve full identity:
          // (TODO [perf]: some might be online...)
          const uids = response.challenges.map(c => { return c.uid });
          ajax("/users",
            "GET",
            { ids: uids.join(",") },
            response2 => {
              let names = {};
              response2.users.forEach(u => {names[u.id] = u.name});
              this.challenges = this.challenges.concat(
                response.challenges.map(c => {
                  // (just players names in fact)
                  const from = {name: names[c.uid], id: c.uid};
                  const type = this.classifyObject(c);
                  const vname = this.getVname(c.vid);
                  return Object.assign({}, c, {type: type, vname: vname, from: from});
                })
              )
            }
          );
        }
      );
    }
    // 0.1] Ask server for room composition:
    const funcPollClients = () => {
      this.st.conn.send(JSON.stringify({code:"pollclients"}));
    };
    if (!!this.st.conn && this.st.conn.readyState == 1) //1 == OPEN state
      funcPollClients();
    else //socket not ready yet (initial loading)
      this.st.conn.onopen = funcPollClients;
    this.st.conn.onmessage = this.socketMessageListener;
    const socketCloseListener = () => {
      store.socketCloseListener(); //reinitialize connexion (in store.js)
      this.st.conn.addEventListener('message', this.socketMessageListener);
      this.st.conn.addEventListener('close', socketCloseListener);
    };
    this.st.conn.onclose = socketCloseListener;
  },
  methods: {
    // Helpers:
    filterChallenges: function(type) {
      return this.challenges.filter(c => c.type == type);
    },
    filterGames: function(type) {
      return this.games.filter(g => g.type == type);
    },
    classifyObject: function(o) { //challenge or game
      // Heuristic: should work for most cases... (TODO)
      return (o.timeControl.indexOf('d') === -1 ? "live" : "corr");
    },
    showGame: function(g) {
      // NOTE: we are an observer, since only games I don't play are shown here
      // ==> Moves sent by connected remote player(s) if live game
      let url = "/game/" + g.id;
      if (g.type == "live")
      {
        const remotes = g.players.filter(p => this.people.some(pl => pl.sid == p.sid));
        const rIdx = (remotes.length == 1 ? 0 : Math.floor(Math.random()*2));
        url += "?rid=" + remotes[rIdx].sid;
      }
      this.$router.push(url);
    },
    // TODO: ...filter(...)[0].name, one-line, just remove this function
    getVname: function(vid) {
      const vIdx = this.st.variants.findIndex(v => v.id == vid);
      return vIdx >= 0 ? this.st.variants[vIdx].name : "";
    },
    getSid: function(pname) {
      const pIdx = this.people.findIndex(pl => pl.name == pname);
      return (pIdx === -1 ? null : this.people[pIdx].sid);
    },
    getPname: function(sid) {
      const pIdx = this.people.findIndex(pl => pl.sid == sid);
      return (pIdx === -1 ? null : this.people[pIdx].name);
    },
    sendSomethingTo: function(to, code, obj, warnDisconnected) {
      const doSend = (code, obj, sid) => {
        this.st.conn.send(JSON.stringify(Object.assign(
          {},
          {code: code},
          obj,
          {target: sid}
        )));
      };
      if (!!to)
      {
        // Challenge with targeted players
        const targetSid = this.getSid(to);
        if (!targetSid)
        {
          if (!!warnDisconnected)
            alert("Warning: " + pname + " is not connected");
        }
        else
          doSend(code, obj, targetSid);
      }
      else
      {
        // Open challenge: send to all connected players (except us)
        this.people.forEach(p => {
          if (p.sid != this.st.user.sid) //only sid is always set
            doSend(code, obj, p.sid);
        });
      }
    },
    // Messaging center:
    socketMessageListener: function(msg) {
      const data = JSON.parse(msg.data);
      switch (data.code)
      {
        // 0.2] Receive clients list (just socket IDs)
        case "pollclients":
        {
          data.sockIds.forEach(sid => {
            this.people.push({sid:sid, id:0, name:""});
            // Ask identity, challenges and game(s)
            this.st.conn.send(JSON.stringify({code:"askidentity", target:sid}));
            this.st.conn.send(JSON.stringify({code:"askchallenge", target:sid}));
            this.st.conn.send(JSON.stringify({code:"askgame", target:sid}));
          });
          break;
        }
        case "askidentity":
        {
          // Request for identification: reply if I'm not anonymous
          if (this.st.user.id > 0)
          {
            this.st.conn.send(JSON.stringify(
              // people[0] instead of st.user to avoid sending email
              {code:"identity", user:this.people[0], target:data.from}));
          }
          break;
        }
        case "askchallenge":
        {
          // Send my current live challenge (if any)
          const cIdx = this.challenges
            .findIndex(c => c.from.sid == this.st.user.sid && c.type == "live");
          if (cIdx >= 0)
          {
            const c = this.challenges[cIdx];
            const myChallenge =
            {
              // Minimal challenge informations: (from not required)
              id: c.id,
              to: c.to,
              fen: c.fen,
              vid: c.vid,
              timeControl: c.timeControl
            };
            this.st.conn.send(JSON.stringify({code:"challenge",
              chall:myChallenge, target:data.from}));
          }
          break;
        }
        case "askgame":
        {
          // Send my current live game (if any)
          GameStorage.getCurrent((game) => {
            if (!!game)
            {
              const myGame =
              {
                // Minimal game informations:
                id: game.id,
                players: game.players.map(p => p.name),
                vid: game.vid,
                timeControl: game.timeControl,
              };
              this.st.conn.send(JSON.stringify({code:"game",
                game:myGame, target:data.from}));
            }
          });
          break;
        }
        case "identity":
        {
          const pIdx = this.people.findIndex(p => p.sid == data.user.sid);
          this.people[pIdx].id = data.user.id;
          this.people[pIdx].name = data.user.name;
          break;
        }
        case "challenge":
        {
          // Receive challenge from some player (+sid)
          let newChall = data.chall;
          newChall.type = this.classifyObject(data.chall);
          const pIdx = this.people.findIndex(p => p.sid == data.from);
          newChall.from = this.people[pIdx]; //may be anonymous
          newChall.added = Date.now(); //TODO: this is reception timestamp, not creation
          newChall.vname = this.getVname(newChall.vid);
          this.challenges.push(newChall);
          break;
        }
        case "game":
        {
          // Receive game from some player (+sid)
          // NOTE: it may be correspondance (if newgame while we are connected)
          if (!this.games.some(g => g.id == data.game.id)) //ignore duplicates
          {
            let newGame = data.game;
            newGame.type = this.classifyObject(data.game);
            newGame.vname = this.getVname(data.game.vid);
            newGame.rid = data.from;
            newGame.score = "*";
            this.games.push(newGame);
          }
          break;
        }
        case "newgame":
        {
          // TODO: next line required ?!
          //ArrayFun.remove(this.challenges, c => c.id == data.cid);
          // New game just started: data contain all information
          if (this.classifyObject(data.gameInfo) == "live")
            this.startNewGame(data.gameInfo);
          else
          {
            // TODO: notify with game link but do not redirect
          }
          break;
        }
        case "refusechallenge":
        {
          alert(this.getPname(data.from) + " declined your challenge");
          ArrayFun.remove(this.challenges, c => c.id == data.cid);
          break;
        }
        case "deletechallenge":
        {
          // NOTE: the challenge may be already removed
          ArrayFun.remove(this.challenges, c => c.id == data.cid);
          localStorage.removeItem("challenge"); //in case of
          break;
        }
        case "connect":
        {
          this.people.push({name:"", id:0, sid:data.sid});
          this.st.conn.send(JSON.stringify({code:"askidentity", target:data.sid}));
          this.st.conn.send(JSON.stringify({code:"askchallenge", target:data.sid}));
          this.st.conn.send(JSON.stringify({code:"askgame", target:data.sid}));
          break;
        }
        case "disconnect":
        {
          ArrayFun.remove(this.people, p => p.sid == data.sid);
          // Also remove all challenges sent by this player:
          ArrayFun.remove(this.challenges, c => c.from.sid == data.sid);
          // And all live games where he plays and no other opponent is online
          ArrayFun.remove(this.games, g =>
            g.type == "live" && (g.players.every(p => p.sid == data.sid
              || !this.people.some(pl => pl.sid == p.sid))), "all");
          break;
        }
      }
    },
    // Challenge lifecycle:
    tryChallenge: function(player) {
      if (player.id == 0)
        return; //anonymous players cannot be challenged
      this.newchallenge.to = player.name;
      doClick("modalNewgame");
    },
    newChallenge: async function() {
      const vname = this.getVname(this.newchallenge.vid);
      const vModule = await import("@/variants/" + vname + ".js");
      window.V = vModule.VariantRules;
      const error = checkChallenge(this.newchallenge);
      if (!!error)
        return alert(error);
      const ctype = this.classifyObject(this.newchallenge);
      if (ctype == "corr" && this.st.user.id <= 0)
        return alert("Please log in to play correspondance games");
      // NOTE: "from" information is not required here
      let chall = Object.assign({}, this.newchallenge);
      const finishAddChallenge = (cid,warnDisconnected) => {
        chall.id = cid || "c" + getRandString();
        // Send challenge to peers (if connected)
        this.sendSomethingTo(chall.to, "challenge", {chall:chall}, !!warnDisconnected);
        chall.added = Date.now();
        // NOTE: vname and type are redundant (can be deduced from timeControl + vid)
        chall.type = ctype;
        chall.vname = vname;
        chall.from = this.people[0]; //avoid sending email
        this.challenges.push(chall);
        localStorage.setItem("challenge", JSON.stringify(chall));
        document.getElementById("modalNewgame").checked = false;
      };
      const cIdx = this.challenges.findIndex(
        c => c.from.sid == this.st.user.sid && c.type == ctype);
      if (cIdx >= 0)
      {
        // Delete current challenge (will be replaced now)
        this.sendSomethingTo(this.challenges[cIdx].to,
          "deletechallenge", {cid:this.challenges[cIdx].id});
        if (ctype == "corr")
        {
          ajax(
            "/challenges",
            "DELETE",
            {id: this.challenges[cIdx].id}
          );
        }
        this.challenges.splice(cIdx, 1);
      }
      if (ctype == "live")
      {
        // Live challenges have a random ID
        finishAddChallenge(null, "warnDisconnected");
      }
      else
      {
        // Correspondance game: send challenge to server
        ajax(
          "/challenges",
          "POST",
          { chall: chall },
          response => { finishAddChallenge(response.cid); }
        );
      }
    },
    clickChallenge: function(c) {
      // In all cases, the challenge is consumed:
      ArrayFun.remove(this.challenges, ch => ch.id == c.id);
      // NOTE: deletechallenge event might be redundant (but it's easier this way)
      this.sendSomethingTo((!!c.to ? c.from : null), "deletechallenge", {cid:c.id});
      const myChallenge = (c.from.sid == this.st.user.sid //live
        || (this.st.user.id > 0 && c.from.id == this.st.user.id)); //corr
      if (!myChallenge)
      {
        c.accepted = true;
        if (!!c.to) //c.to == this.st.user.name (connected)
        {
          // TODO: if special FEN, show diagram after loading variant
          c.accepted = confirm("Accept challenge?");
        }
        if (c.accepted)
        {
          c.seat = this.people[0]; //== this.st.user, avoid revealing email
          this.launchGame(c);
        }
        else
        {
          this.st.conn.send(JSON.stringify({
            code: "refusechallenge",
            cid: c.id, target: c.from.sid}));
        }
      }
      else //my challenge
      {
        localStorage.removeItem("challenge");
        if (c.type == "corr")
        {
          ajax(
            "/challenges",
            "DELETE",
            {id: c.id}
          );
        }
      }
    },
    // NOTE: when launching game, the challenge is already deleted
    launchGame: async function(c) {
      const vModule = await import("@/variants/" + c.vname + ".js");
      window.V = vModule.VariantRules;
      // These game informations will be sent to other players
      const gameInfo =
      {
        gameId: getRandString(),
        fen: c.fen || V.GenRandInitFen(),
        players: shuffle([c.from, c.seat]), //white then black
        vid: c.vid,
        timeControl: c.timeControl,
      };
      let target = c.from.sid; //may not be defined if corr + offline opp
      if (!target)
      {
        const opponent = this.people.find(p => p.id == c.from.id);
        if (!!opponent)
          target = opponent.sid
      }
      if (!!target) //opponent is online
      {
        this.st.conn.send(JSON.stringify({code:"newgame",
          gameInfo:gameInfo, target:target, cid:c.id}));
      }
      if (c.type == "live")
        this.startNewGame(gameInfo);
      else //corr: game only on server
      {
        ajax(
          "/games",
          "POST",
          {gameInfo: gameInfo, cid: c.id}, //cid useful to delete challenge
          response => { this.$router.push("/game/" + response.gameId); }
        );
      }
    },
    // NOTE: for live games only (corr games start on the server)
    startNewGame: function(gameInfo) {
      const game = Object.assign({}, gameInfo, {
        // (other) Game infos: constant
        fenStart: gameInfo.fen,
        created: Date.now(),
        // Game state (including FEN): will be updated
        moves: [],
        clocks: [-1, -1], //-1 = unstarted
        initime: [0, 0], //initialized later
        score: "*",
      });
      GameStorage.add(game);
      if (this.st.settings.sound >= 1)
        new Audio("/sounds/newgame.mp3").play().catch(err => {});
      this.$router.push("/game/" + gameInfo.gameId);
    },
  },
};
</script>

<style lang="sass">
// TODO
</style>