[vchess.git] / server / models / Game.js

var db = require("../utils/database");
const UserModel = require("./User");

/*
 * Structure table Games:
 *   id: game id (int)
 *   vid: integer (variant id)
 *   fenStart: varchar (initial position)
 *   fen: varchar (current position)
 *   timeControl: string
 *   score: varchar (result)
 *   created: datetime
 *   drawOffer: boolean
 *
 * Structure table Players:
 *   gid: ref game id
 *   uid: ref user id
 *   color: character
 *
 * Structure table Moves:
 *   gid: ref game id
 *   squares: varchar (description)
 *   played: datetime
 *   idx: integer
 *
 * Structure table Chats:
 *   gid: game id (int)
 *   msg: varchar
 *   name: varchar
 *   sid: varchar (socket ID when sending message)
 *   added: datetime
 */

const GameModel =
{
  checkGameInfo: function(g) {
    if (!g.id.toString().match(/^[0-9]+$/))
      return "Wrong game ID";
    if (!g.vid.toString().match(/^[0-9]+$/))
      return "Wrong variant ID";
    if (!g.vname.match(/^[a-zA-Z0-9]+$/))
      return "Wrong variant name";
    if (!g.timeControl.match(/^[0-9dhms +]+$/))
      return "Wrong characters in time control";
    if (!g.fen.match(/^[a-zA-Z0-9, /-]*$/))
      return "Bad FEN string";
    if (g.players.length != 2)
      return "Need exactly 2 players";
    if (g.players.some(p => !p.id.toString().match(/^[0-9]+$/)))
      return "Wrong characters in player ID";
    return "";
  },

	create: function(vid, fen, timeControl, players, cb)
	{
		db.serialize(function() {
			let query =
				"INSERT INTO Games"
        + " (vid, fenStart, fen, score, timeControl, created, drawOffer)"
        + " VALUES (" + vid + ",'" + fen + "','" + fen + "','*','"
        + timeControl + "'," + Date.now() + "," + false + ")";
      db.run(query, function(err) {
        if (!!err)
          return cb(err);
        players.forEach((p,idx) => {
          const color = (idx==0 ? "w" : "b");
          query =
            "INSERT INTO Players VALUES " +
            "(" + this.lastID + "," + p.id + ",'" + color + "')";
          db.run(query);
        });
        cb(null, {gid: this.lastID});
			});
		});
	},

	// TODO: queries here could be async, and wait for all to complete
	getOne: function(id, cb)
	{
		db.serialize(function() {
      // TODO: optimize queries?
			let query =
				"SELECT g.id, g.vid, g.fen, g.fenStart, g.timeControl, g.score, " +
          "v.name AS vname " +
				"FROM Games g " +
        "JOIN Variants v " +
        "  ON g.vid = v.id " +
				"WHERE g.id = " + id;
			db.get(query, (err,gameInfo) => {
				if (!!err)
					return cb(err);
				query =
					"SELECT p.uid, p.color, u.name " +
					"FROM Players p " +
          "JOIN Users u " +
          "  ON p.uid = u.id " +
					"WHERE p.gid = " + id;
				db.all(query, (err2,players) => {
					if (!!err2)
						return cb(err2);
					query =
						"SELECT squares, played, idx " +
						"FROM Moves " +
						"WHERE gid = " + id;
					db.all(query, (err3,moves) => {
						if (!!err3)
							return cb(err3);
			      query =
              "SELECT msg, name, sid, added " +
              "FROM Chats " +
              "WHERE gid = " + id;
			      db.all(query, (err4,chats) => {
						  if (!!err4)
							  return cb(err4);
						  const game = Object.assign({},
                gameInfo,
                {
                  players: players,
                  moves: moves,
                  chats: chats,
                }
              );
						  return cb(null, game);
            });
					});
				});
			});
		});
	},

	getByUser: function(uid, excluded, cb)
	{
		db.serialize(function() {
			// Next query is fine because a player appear at most once in a game
			const query =
				"SELECT gid " +
				"FROM Players " +
				"WHERE uid " + (excluded ? "<>" : "=") + " " + uid;
			db.all(query, (err,gameIds) => {
				if (!!err)
					return cb(err);
        gameIds = gameIds || []; //might be empty
				let gameArray = [];
				for (let i=0; i<gameIds.length; i++)
				{
					GameModel.getOne(gameIds[i]["gid"], (err2,game) => {
						if (!!err2)
							return cb(err2);
						gameArray.push(game);
						// Call callback function only when gameArray is complete:
						if (i == gameIds.length - 1)
							return cb(null, gameArray);
					});
				}
			});
		});
	},

  getPlayers: function(id, cb)
  {
    db.serialize(function() {
      const query =
        "SELECT id " +
        "FROM Players " +
        "WHERE gid = " + id;
      db.all(query, (err,players) => {
        return cb(err, players);
      });
    });
  },

  checkGameUpdate: function(obj)
  {
    // Check all that is possible (required) in obj:
    if (!!obj.move)
    {
      if (!obj.move.played.toString().match(/^[0-9]+$/))
        return "Wrong move played time";
      if (!obj.move.idx.toString().match(/^[0-9]+$/))
        return "Wrong move index";
    }
    if (!!obj.fen && !obj.fen.match(/^[a-zA-Z0-9, /-]*$/))
      return "Wrong FEN string";
    if (!!obj.score && !obj.score.match(/^[012?*\/-]+$/))
      return "Wrong characters in score";
    if (!!obj.chat)
    {
      if (!obj.chat.sid.match(/^[a-zA-Z0-9]+$/))
        return "Wrong user SID";
      return UserModel.checkNameEmail({name: obj.chat.name});
    }
    return "";
  },

  // obj can have fields move, chat, fen, drawOffer and/or score
  update: function(id, obj)
  {
		db.parallelize(function() {
      let query =
        "UPDATE Games " +
        "SET ";
      let modifs = "";
      if (!!obj.message)
        modifs += "message = message || ' ' || '" + obj.message + "',";
      if ([true,false].includes(obj.drawOffer))
        modifs += "drawOffer = " + obj.drawOffer + ",";
      if (!!obj.fen)
        modifs += "fen = '" + obj.fen + "',";
      if (!!obj.score)
        modifs += "score = '" + obj.score + "',";
      modifs = modifs.slice(0,-1); //remove last comma
      if (modifs.length > 0)
      {
        query += modifs + " WHERE id = " + id;
        db.run(query);
      }
      if (!!obj.move)
      {
        const m = obj.move;
        query =
          "INSERT INTO Moves (gid, squares, played, idx) VALUES " +
          "(" + id + ",?," + m.played + "," + m.idx + ")";
        db.run(query, JSON.stringify(m.squares));
      }
      if (!!obj.chat)
      {
			  query =
	        "INSERT INTO Chats (gid, msg, name, sid, added) VALUES " +
            "(" + id + ",?,'" + obj.chat.name + "','"
            + obj.chat.sid + "'," + Date.now() + ")";
        db.run(query, obj.chat.msg);
      }
    });
  },

	remove: function(id)
	{
		db.parallelize(function() {
			let query =
				"DELETE FROM Games " +
				"WHERE id = " + id;
			db.run(query);
			query =
				"DELETE FROM Players " +
				"WHERE gid = " + id;
			db.run(query);
			query =
				"DELETE FROM Moves " +
				"WHERE gid = " + id;
			db.run(query);
			query =
				"DELETE FROM Chats " +
				"WHERE gid = " + id;
			db.run(query);
		});
	},

  cleanGamesDb: function()
  {
    const tsNow = Date.now();
    // 86400000 = 24 hours in milliseconds
    const day = 86400000;
    db.serialize(function() {
      let query =
        "SELECT id,score " +
        "FROM Games ";
      db.all(query, (err,games) => {
        games.forEach(g => {
          query =
            "SELECT max(played) AS lastMaj " +
            "FROM Moves " +
            "WHERE gid = " + g.id;
          db.get(query, (err2,updated) => {
            if (!updated && tsNow - g.created > 7*day)
              return GameModel.remove(g.id);
            const lastMaj = updated.lastMaj;
            if (g.score != "*" && tsNow - lastMaj > 7*day ||
              g.score == "*" && tsNow - lastMaj > 91*day)
            {
              GameModel.remove(g.id);
            }
          });
        });
      });
    });
  },
}

module.exports = GameModel;
Commit	Line	Data
	1	var db = require("../utils/database");
	2	const UserModel = require("./User");
	3
	4	/*
	5	* Structure table Games:
	6	* id: game id (int)
	7	* vid: integer (variant id)
	8	* fenStart: varchar (initial position)
	9	* fen: varchar (current position)
	10	* timeControl: string
	11	* score: varchar (result)
	12	* created: datetime
	13	* drawOffer: boolean
	14	*
	15	* Structure table Players:
	16	* gid: ref game id
	17	* uid: ref user id
	18	* color: character
	19	*
	20	* Structure table Moves:
	21	* gid: ref game id
	22	* squares: varchar (description)
	23	* played: datetime
	24	* idx: integer
	25	*
	26	* Structure table Chats:
	27	* gid: game id (int)
	28	* msg: varchar
	29	* name: varchar
	30	* sid: varchar (socket ID when sending message)
	31	* added: datetime
	32	*/
	33
	34	const GameModel =
	35	{
	36	checkGameInfo: function(g) {
	37	if (!g.id.toString().match(/^[0-9]+$/))
	38	return "Wrong game ID";
	39	if (!g.vid.toString().match(/^[0-9]+$/))
	40	return "Wrong variant ID";
	41	if (!g.vname.match(/^[a-zA-Z0-9]+$/))
	42	return "Wrong variant name";
	43	if (!g.timeControl.match(/^[0-9dhms +]+$/))
	44	return "Wrong characters in time control";
	45	if (!g.fen.match(/^[a-zA-Z0-9, /-]*$/))
	46	return "Bad FEN string";
	47	if (g.players.length != 2)
	48	return "Need exactly 2 players";
	49	if (g.players.some(p => !p.id.toString().match(/^[0-9]+$/)))
	50	return "Wrong characters in player ID";
	51	return "";
	52	},
	53
	54	create: function(vid, fen, timeControl, players, cb)
	55	{
	56	db.serialize(function() {
	57	let query =
	58	"INSERT INTO Games"
	59	+ " (vid, fenStart, fen, score, timeControl, created, drawOffer)"
	60	+ " VALUES (" + vid + ",'" + fen + "','" + fen + "','*','"
	61	+ timeControl + "'," + Date.now() + "," + false + ")";
	62	db.run(query, function(err) {
	63	if (!!err)
	64	return cb(err);
	65	players.forEach((p,idx) => {
	66	const color = (idx==0 ? "w" : "b");
	67	query =
	68	"INSERT INTO Players VALUES " +
	69	"(" + this.lastID + "," + p.id + ",'" + color + "')";
	70	db.run(query);
	71	});
	72	cb(null, {gid: this.lastID});
	73	});
	74	});
	75	},
	76
	77	// TODO: queries here could be async, and wait for all to complete
	78	getOne: function(id, cb)
	79	{
	80	db.serialize(function() {
	81	// TODO: optimize queries?
	82	let query =
	83	"SELECT g.id, g.vid, g.fen, g.fenStart, g.timeControl, g.score, " +
	84	"v.name AS vname " +
	85	"FROM Games g " +
	86	"JOIN Variants v " +
	87	" ON g.vid = v.id " +
	88	"WHERE g.id = " + id;
	89	db.get(query, (err,gameInfo) => {
	90	if (!!err)
	91	return cb(err);
	92	query =
	93	"SELECT p.uid, p.color, u.name " +
	94	"FROM Players p " +
	95	"JOIN Users u " +
	96	" ON p.uid = u.id " +
	97	"WHERE p.gid = " + id;
	98	db.all(query, (err2,players) => {
	99	if (!!err2)
	100	return cb(err2);
	101	query =
	102	"SELECT squares, played, idx " +
	103	"FROM Moves " +
	104	"WHERE gid = " + id;
	105	db.all(query, (err3,moves) => {
	106	if (!!err3)
	107	return cb(err3);
	108	query =
	109	"SELECT msg, name, sid, added " +
	110	"FROM Chats " +
	111	"WHERE gid = " + id;
	112	db.all(query, (err4,chats) => {
	113	if (!!err4)
	114	return cb(err4);
	115	const game = Object.assign({},
	116	gameInfo,
	117	{
	118	players: players,
	119	moves: moves,
	120	chats: chats,
	121	}
	122	);
	123	return cb(null, game);
	124	});
	125	});
	126	});
	127	});
	128	});
	129	},
	130
	131	getByUser: function(uid, excluded, cb)
	132	{
	133	db.serialize(function() {
	134	// Next query is fine because a player appear at most once in a game
	135	const query =
	136	"SELECT gid " +
	137	"FROM Players " +
	138	"WHERE uid " + (excluded ? "<>" : "=") + " " + uid;
	139	db.all(query, (err,gameIds) => {
	140	if (!!err)
	141	return cb(err);
	142	gameIds = gameIds \|\| []; //might be empty
	143	let gameArray = [];
	144	for (let i=0; i<gameIds.length; i++)
	145	{
	146	GameModel.getOne(gameIds[i]["gid"], (err2,game) => {
	147	if (!!err2)
	148	return cb(err2);
	149	gameArray.push(game);
	150	// Call callback function only when gameArray is complete:
	151	if (i == gameIds.length - 1)
	152	return cb(null, gameArray);
	153	});
	154	}
	155	});
	156	});
	157	},
	158
	159	getPlayers: function(id, cb)
	160	{
	161	db.serialize(function() {
	162	const query =
	163	"SELECT id " +
	164	"FROM Players " +
	165	"WHERE gid = " + id;
	166	db.all(query, (err,players) => {
	167	return cb(err, players);
	168	});
	169	});
	170	},
	171
	172	checkGameUpdate: function(obj)
	173	{
	174	// Check all that is possible (required) in obj:
	175	if (!!obj.move)
	176	{
	177	if (!obj.move.played.toString().match(/^[0-9]+$/))
	178	return "Wrong move played time";
	179	if (!obj.move.idx.toString().match(/^[0-9]+$/))
	180	return "Wrong move index";
	181	}
	182	if (!!obj.fen && !obj.fen.match(/^[a-zA-Z0-9, /-]*$/))
	183	return "Wrong FEN string";
	184	if (!!obj.score && !obj.score.match(/^[012?*\/-]+$/))
	185	return "Wrong characters in score";
	186	if (!!obj.chat)
	187	{
	188	if (!obj.chat.sid.match(/^[a-zA-Z0-9]+$/))
	189	return "Wrong user SID";
	190	return UserModel.checkNameEmail({name: obj.chat.name});
	191	}
	192	return "";
	193	},
	194
	195	// obj can have fields move, chat, fen, drawOffer and/or score
	196	update: function(id, obj)
	197	{
	198	db.parallelize(function() {
	199	let query =
	200	"UPDATE Games " +
	201	"SET ";
	202	let modifs = "";
	203	if (!!obj.message)
	204	modifs += "message = message \|\| ' ' \|\| '" + obj.message + "',";
	205	if ([true,false].includes(obj.drawOffer))
	206	modifs += "drawOffer = " + obj.drawOffer + ",";
	207	if (!!obj.fen)
	208	modifs += "fen = '" + obj.fen + "',";
	209	if (!!obj.score)
	210	modifs += "score = '" + obj.score + "',";
	211	modifs = modifs.slice(0,-1); //remove last comma
	212	if (modifs.length > 0)
	213	{
	214	query += modifs + " WHERE id = " + id;
	215	db.run(query);
	216	}
	217	if (!!obj.move)
	218	{
	219	const m = obj.move;
	220	query =
	221	"INSERT INTO Moves (gid, squares, played, idx) VALUES " +
	222	"(" + id + ",?," + m.played + "," + m.idx + ")";
	223	db.run(query, JSON.stringify(m.squares));
	224	}
	225	if (!!obj.chat)
	226	{
	227	query =
	228	"INSERT INTO Chats (gid, msg, name, sid, added) VALUES " +
	229	"(" + id + ",?,'" + obj.chat.name + "','"
	230	+ obj.chat.sid + "'," + Date.now() + ")";
	231	db.run(query, obj.chat.msg);
	232	}
	233	});
	234	},
	235
	236	remove: function(id)
	237	{
	238	db.parallelize(function() {
	239	let query =
	240	"DELETE FROM Games " +
	241	"WHERE id = " + id;
	242	db.run(query);
	243	query =
	244	"DELETE FROM Players " +
	245	"WHERE gid = " + id;
	246	db.run(query);
	247	query =
	248	"DELETE FROM Moves " +
	249	"WHERE gid = " + id;
	250	db.run(query);
	251	query =
	252	"DELETE FROM Chats " +
	253	"WHERE gid = " + id;
	254	db.run(query);
	255	});
	256	},
	257
	258	cleanGamesDb: function()
	259	{
	260	const tsNow = Date.now();
	261	// 86400000 = 24 hours in milliseconds
	262	const day = 86400000;
	263	db.serialize(function() {
	264	let query =
	265	"SELECT id,score " +
	266	"FROM Games ";
	267	db.all(query, (err,games) => {
	268	games.forEach(g => {
	269	query =
	270	"SELECT max(played) AS lastMaj " +
	271	"FROM Moves " +
	272	"WHERE gid = " + g.id;
	273	db.get(query, (err2,updated) => {
	274	if (!updated && tsNow - g.created > 7*day)
	275	return GameModel.remove(g.id);
	276	const lastMaj = updated.lastMaj;
	277	if (g.score != "" && tsNow - lastMaj > 7day \|\|
	278	g.score == "" && tsNow - lastMaj > 91day)
	279	{
	280	GameModel.remove(g.id);
	281	}
	282	});
	283	});
	284	});
	285	});
	286	},
	287	}
	288
	289	module.exports = GameModel;