'update'
[vchess.git] / server / models / Game.js
... / ...
CommitLineData
1var db = require("../utils/database");
2
3/*
4 * Structure table Games:
5 * id: game id (int)
6 * vid: integer (variant id)
7 * fenStart: varchar (initial position)
8 * fen: varchar (current position)
9 * timeControl: string
10 * score: varchar (result)
11 * created: datetime
12 *
13 * Structure table Players:
14 * gid: ref game id
15 * uid: ref user id
16 * color: character
17 *
18 * Structure table Moves:
19 * gid: ref game id
20 * squares: varchar (description)
21 * message: text
22 * played: datetime
23 * idx: integer
24 */
25
26const GameModel =
27{
28 create: function(vid, fen, timeControl, players, cb)
29 {
30 db.serialize(function() {
31 let query =
32 "INSERT INTO Games"
33 + " (vid, fenStart, fen, score, timeControl, created, drawOffer)"
34 + " VALUES (" + vid + ",'" + fen + "','" + fen + "','*','"
35 + timeControl + "'," + Date.now() + "," + false + ")";
36 db.run(query, function(err) {
37 if (!!err)
38 return cb(err);
39 players.forEach((p,idx) => {
40 const color = (idx==0 ? "w" : "b");
41 query =
42 "INSERT INTO Players VALUES " +
43 "(" + this.lastID + "," + p.id + ",'" + color + "')";
44 db.run(query);
45 });
46 cb(null, {gid: this.lastID});
47 });
48 });
49 },
50
51 // TODO: queries here could be async, and wait for all to complete
52 getOne: function(id, cb)
53 {
54 db.serialize(function() {
55 // TODO: optimize queries?
56 let query =
57 "SELECT g.id, g.vid, g.fen, g.fenStart, g.timeControl, g.score, " +
58 "v.name AS vname " +
59 "FROM Games g " +
60 "JOIN Variants v " +
61 " ON g.vid = v.id " +
62 "WHERE g.id = " + id;
63 db.get(query, (err,gameInfo) => {
64 if (!!err)
65 return cb(err);
66 query =
67 "SELECT p.uid, p.color, u.name " +
68 "FROM Players p " +
69 "JOIN Users u " +
70 " ON p.uid = u.id " +
71 "WHERE p.gid = " + id;
72 db.all(query, (err2,players) => {
73 if (!!err2)
74 return cb(err2);
75 query =
76 "SELECT squares, message, played, idx " +
77 "FROM Moves " +
78 "WHERE gid = " + id;
79 db.all(query, (err3,moves) => {
80 if (!!err3)
81 return cb(err3);
82 const game = Object.assign({},
83 gameInfo,
84 {
85 players: players,
86 moves: moves
87 }
88 );
89 return cb(null, game);
90 });
91 });
92 });
93 });
94 },
95
96 getByUser: function(uid, excluded, cb)
97 {
98 db.serialize(function() {
99 // Next query is fine because a player appear at most once in a game
100 const query =
101 "SELECT gid " +
102 "FROM Players " +
103 "WHERE uid " + (excluded ? "<>" : "=") + " " + uid;
104 db.all(query, (err,gameIds) => {
105 if (!!err)
106 return cb(err);
107 gameIds = gameIds || []; //might be empty
108 let gameArray = [];
109 for (let i=0; i<gameIds.length; i++)
110 {
111 GameModel.getOne(gameIds[i]["gid"], (err2,game) => {
112 if (!!err2)
113 return cb(err2);
114 gameArray.push(game);
115 // Call callback function only when gameArray is complete:
116 if (i == gameIds.length - 1)
117 return cb(null, gameArray);
118 });
119 }
120 });
121 });
122 },
123
124 getPlayers: function(id, cb)
125 {
126 db.serialize(function() {
127 const query =
128 "SELECT id " +
129 "FROM Players " +
130 "WHERE gid = " + id;
131 db.all(query, (err,players) => {
132 return cb(err, players);
133 });
134 });
135 },
136
137 // obj can have fields move, message, fen, drawOffer and/or score
138 update: function(id, obj)
139 {
140 db.parallelize(function() {
141 let query =
142 "UPDATE Games " +
143 "SET ";
144 if (!!obj.message)
145 query += "message = message || ' ' || '" + obj.message + "',";
146 if (!!obj.drawOffer)
147 query += "drawOffer = " + obj.drawOffer + ",";
148 if (!!obj.fen)
149 query += "fen = '" + obj.fen + "',";
150 if (!!obj.score)
151 query += "score = '" + obj.score + "',";
152 query = query.slice(0,-1); //remove last comma
153 query += " WHERE id = " + id;
154 db.run(query);
155 if (!!obj.move)
156 {
157 const m = obj.move;
158 query =
159 "INSERT INTO Moves (gid, squares, played, idx) VALUES " +
160 "(" + id + ",'" + JSON.stringify(m.squares) + "',"
161 + m.played + "," + m.idx + ")";
162 db.run(query);
163 }
164 });
165 },
166
167 remove: function(id)
168 {
169 db.parallelize(function() {
170 let query =
171 "DELETE FROM Games " +
172 "WHERE id = " + id;
173 db.run(query);
174 query =
175 "DELETE FROM Players " +
176 "WHERE gid = " + id;
177 db.run(query);
178 query =
179 "DELETE FROM Moves " +
180 "WHERE gid = " + id;
181 db.run(query);
182 });
183 },
184
185 cleanGamesDb: function()
186 {
187 const tsNow = Date.now();
188 // 86400000 = 24 hours in milliseconds
189 const day = 86400000;
190 db.serialize(function() {
191 let query =
192 "SELECT id,score " +
193 "FROM Games ";
194 db.all(query, (err,games) => {
195 games.forEach(g => {
196 query =
197 "SELECT max(played) AS lastMaj " +
198 "FROM Moves " +
199 "WHERE gid = " + g.id;
200 db.get(query, (err2,updated) => {
201 if (!updated && tsNow - g.created > 7*day)
202 return GameModel.remove(g.id);
203 const lastMaj = updated.lastMaj;
204 if (g.score != "*" && tsNow - lastMaj > 7*day ||
205 g.score == "*" && tsNow - lastMaj > 91*day)
206 {
207 GameModel.remove(g.id);
208 }
209 });
210 });
211 });
212 });
213 },
214}
215
216module.exports = GameModel;