| 1 | const 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 | * cadence: string |
| 11 | * score: varchar (result) |
| 12 | * scoreMsg: varchar ("Time", "Mutual agreement"...) |
| 13 | * created: datetime |
| 14 | * drawOffer: char ('w','b' or '' for none) |
| 15 | * |
| 16 | * Structure table Players: |
| 17 | * gid: ref game id |
| 18 | * uid: ref user id |
| 19 | * color: character |
| 20 | * |
| 21 | * Structure table Moves: |
| 22 | * gid: ref game id |
| 23 | * squares: varchar (description) |
| 24 | * played: datetime |
| 25 | * idx: integer |
| 26 | * |
| 27 | * Structure table Chats: |
| 28 | * gid: game id (int) |
| 29 | * msg: varchar |
| 30 | * name: varchar |
| 31 | * added: datetime |
| 32 | */ |
| 33 | |
| 34 | const GameModel = |
| 35 | { |
| 36 | checkGameInfo: function(g) { |
| 37 | return ( |
| 38 | g.vid.toString().match(/^[0-9]+$/) && |
| 39 | g.cadence.match(/^[0-9dhms +]+$/) && |
| 40 | g.fen.match(/^[a-zA-Z0-9, /-]*$/) && |
| 41 | g.players.length == 2 && |
| 42 | g.players.every(p => p.id.toString().match(/^[0-9]+$/)) |
| 43 | ); |
| 44 | }, |
| 45 | |
| 46 | create: function(vid, fen, cadence, players, cb) |
| 47 | { |
| 48 | db.serialize(function() { |
| 49 | let query = |
| 50 | "INSERT INTO Games " + |
| 51 | "(vid, fenStart, fen, score, cadence, created, drawOffer) " + |
| 52 | "VALUES " + |
| 53 | "(" + vid + ",'" + fen + "','" + fen + "','*','" + cadence + "'," + Date.now() + ",'')"; |
| 54 | db.run(query, function(err) { |
| 55 | if (err) |
| 56 | cb(err) |
| 57 | else |
| 58 | { |
| 59 | players.forEach((p,idx) => { |
| 60 | const color = (idx==0 ? "w" : "b"); |
| 61 | query = |
| 62 | "INSERT INTO Players VALUES " + |
| 63 | "(" + this.lastID + "," + p.id + ",'" + color + "')"; |
| 64 | db.run(query); |
| 65 | }); |
| 66 | cb(null, {gid: this.lastID}); |
| 67 | } |
| 68 | }); |
| 69 | }); |
| 70 | }, |
| 71 | |
| 72 | // TODO: some queries here could be async |
| 73 | getOne: function(id, light, cb) |
| 74 | { |
| 75 | // NOTE: ignoring errors (shouldn't happen at this stage) |
| 76 | db.serialize(function() { |
| 77 | let query = |
| 78 | "SELECT g.id, g.vid, g.fen, g.fenStart, g.cadence, g.created, g.score, " + |
| 79 | "g.scoreMsg, g.drawOffer, v.name AS vname " + |
| 80 | "FROM Games g " + |
| 81 | "JOIN Variants v " + |
| 82 | " ON g.vid = v.id " + |
| 83 | "WHERE g.id = " + id; |
| 84 | db.get(query, (err,gameInfo) => { |
| 85 | query = |
| 86 | "SELECT p.uid, p.color, u.name " + |
| 87 | "FROM Players p " + |
| 88 | "JOIN Users u " + |
| 89 | " ON p.uid = u.id " + |
| 90 | "WHERE p.gid = " + id; |
| 91 | db.all(query, (err2,players) => { |
| 92 | if (light) |
| 93 | { |
| 94 | query = |
| 95 | "SELECT COUNT(*) AS nbMoves " + |
| 96 | "FROM Moves " + |
| 97 | "WHERE gid = " + id; |
| 98 | db.get(query, (err,ret) => { |
| 99 | const game = Object.assign({}, |
| 100 | gameInfo, |
| 101 | {players: players}, |
| 102 | {movesCount: ret.nbMoves} |
| 103 | ); |
| 104 | cb(null, game); |
| 105 | }); |
| 106 | } |
| 107 | else |
| 108 | { |
| 109 | // Full game requested: |
| 110 | query = |
| 111 | "SELECT squares, played, idx " + |
| 112 | "FROM Moves " + |
| 113 | "WHERE gid = " + id; |
| 114 | db.all(query, (err3,moves) => { |
| 115 | query = |
| 116 | "SELECT msg, name, added " + |
| 117 | "FROM Chats " + |
| 118 | "WHERE gid = " + id; |
| 119 | db.all(query, (err4,chats) => { |
| 120 | const game = Object.assign({}, |
| 121 | gameInfo, |
| 122 | { |
| 123 | players: players, |
| 124 | moves: moves, |
| 125 | chats: chats, |
| 126 | } |
| 127 | ); |
| 128 | cb(null, game); |
| 129 | }); |
| 130 | }); |
| 131 | } |
| 132 | }); |
| 133 | }); |
| 134 | }); |
| 135 | }, |
| 136 | |
| 137 | // For display on MyGames or Hall: no need for moves or chats |
| 138 | getByUser: function(uid, excluded, cb) |
| 139 | { |
| 140 | db.serialize(function() { |
| 141 | let query = ""; |
| 142 | if (uid == 0) |
| 143 | { |
| 144 | // Special case anonymous user: show all games |
| 145 | query = |
| 146 | "SELECT id AS gid " + |
| 147 | "FROM Games"; |
| 148 | } |
| 149 | else |
| 150 | { |
| 151 | // Registered user: |
| 152 | query = |
| 153 | "SELECT gid " + |
| 154 | "FROM Players " + |
| 155 | "GROUP BY gid " + |
| 156 | "HAVING COUNT(uid = " + uid + " OR NULL) " + |
| 157 | (excluded ? " = 0" : " > 0"); |
| 158 | } |
| 159 | db.all(query, (err,gameIds) => { |
| 160 | if (err || gameIds.length == 0) |
| 161 | cb(err, []); |
| 162 | else |
| 163 | { |
| 164 | let gameArray = []; |
| 165 | let gCounter = 0; |
| 166 | for (let i=0; i<gameIds.length; i++) |
| 167 | { |
| 168 | GameModel.getOne(gameIds[i]["gid"], true, (err2,game) => { |
| 169 | gameArray.push(game); |
| 170 | gCounter++; //TODO: let's hope this is atomic?! |
| 171 | // Call callback function only when gameArray is complete: |
| 172 | if (gCounter == gameIds.length) |
| 173 | cb(null, gameArray); |
| 174 | }); |
| 175 | } |
| 176 | } |
| 177 | }); |
| 178 | }); |
| 179 | }, |
| 180 | |
| 181 | getPlayers: function(id, cb) |
| 182 | { |
| 183 | db.serialize(function() { |
| 184 | const query = |
| 185 | "SELECT uid " + |
| 186 | "FROM Players " + |
| 187 | "WHERE gid = " + id; |
| 188 | db.all(query, (err,players) => { |
| 189 | return cb(err, players); |
| 190 | }); |
| 191 | }); |
| 192 | }, |
| 193 | |
| 194 | checkGameUpdate: function(obj) |
| 195 | { |
| 196 | // Check all that is possible (required) in obj: |
| 197 | return ( |
| 198 | ( |
| 199 | !obj.move || ( |
| 200 | obj.move.played.toString().match(/^[0-9]+$/) && |
| 201 | obj.move.idx.toString().match(/^[0-9]+$/) |
| 202 | ) |
| 203 | ) && ( |
| 204 | !obj.drawOffer || obj.drawOffer.match(/^[wbtn]$/) |
| 205 | ) && ( |
| 206 | !obj.fen || obj.fen.match(/^[a-zA-Z0-9, /-]*$/) |
| 207 | ) && ( |
| 208 | !obj.score || obj.score.match(/^[012?*\/-]+$/) |
| 209 | ) && ( |
| 210 | !obj.scoreMsg || obj.scoreMsg.match(/^[a-zA-Z ]+$/) |
| 211 | ) && ( |
| 212 | !obj.chat || UserModel.checkNameEmail({name: obj.chat.name}) |
| 213 | ) |
| 214 | ); |
| 215 | }, |
| 216 | |
| 217 | // obj can have fields move, chat, fen, drawOffer and/or score + message |
| 218 | update: function(id, obj, cb) |
| 219 | { |
| 220 | db.parallelize(function() { |
| 221 | let query = |
| 222 | "UPDATE Games " + |
| 223 | "SET "; |
| 224 | let modifs = ""; |
| 225 | // NOTE: if drawOffer is set, we should check that it's player's turn |
| 226 | // A bit overcomplicated. Let's trust the client on that for now... |
| 227 | if (obj.drawOffer) |
| 228 | { |
| 229 | if (obj.drawOffer == "n") //Special "None" update |
| 230 | obj.drawOffer = ""; |
| 231 | modifs += "drawOffer = '" + obj.drawOffer + "',"; |
| 232 | } |
| 233 | if (obj.fen) |
| 234 | modifs += "fen = '" + obj.fen + "',"; |
| 235 | if (obj.score) |
| 236 | modifs += "score = '" + obj.score + "',"; |
| 237 | if (obj.scoreMsg) |
| 238 | modifs += "scoreMsg = '" + obj.scoreMsg + "',"; |
| 239 | modifs = modifs.slice(0,-1); //remove last comma |
| 240 | if (modifs.length > 0) |
| 241 | { |
| 242 | query += modifs + " WHERE id = " + id; |
| 243 | db.run(query); |
| 244 | } |
| 245 | // NOTE: move, chat and delchat are mutually exclusive |
| 246 | if (obj.move) |
| 247 | { |
| 248 | // Security: only update moves if index is right |
| 249 | query = |
| 250 | "SELECT MAX(idx) AS maxIdx " + |
| 251 | "FROM Moves " + |
| 252 | "WHERE gid = " + id; |
| 253 | db.get(query, (err,ret) => { |
| 254 | const m = obj.move; |
| 255 | if (!ret.maxIdx || ret.maxIdx + 1 == m.idx) { |
| 256 | query = |
| 257 | "INSERT INTO Moves (gid, squares, played, idx) VALUES " + |
| 258 | "(" + id + ",?," + m.played + "," + m.idx + ")"; |
| 259 | db.run(query, JSON.stringify(m.squares)); |
| 260 | cb(null); |
| 261 | } |
| 262 | else cb({errmsg:"Wrong move index"}); |
| 263 | }); |
| 264 | } |
| 265 | else cb(null); |
| 266 | if (obj.chat) |
| 267 | { |
| 268 | query = |
| 269 | "INSERT INTO Chats (gid, msg, name, added) VALUES (" |
| 270 | + id + ",?,'" + obj.chat.name + "'," + Date.now() + ")"; |
| 271 | db.run(query, obj.chat.msg); |
| 272 | } |
| 273 | else if (obj.delchat) |
| 274 | { |
| 275 | query = |
| 276 | "DELETE " + |
| 277 | "FROM Chats " + |
| 278 | "WHERE gid = " + id; |
| 279 | db.run(query); |
| 280 | } |
| 281 | }); |
| 282 | }, |
| 283 | |
| 284 | remove: function(id) |
| 285 | { |
| 286 | db.parallelize(function() { |
| 287 | let query = |
| 288 | "DELETE FROM Games " + |
| 289 | "WHERE id = " + id; |
| 290 | db.run(query); |
| 291 | query = |
| 292 | "DELETE FROM Players " + |
| 293 | "WHERE gid = " + id; |
| 294 | db.run(query); |
| 295 | query = |
| 296 | "DELETE FROM Moves " + |
| 297 | "WHERE gid = " + id; |
| 298 | db.run(query); |
| 299 | query = |
| 300 | "DELETE FROM Chats " + |
| 301 | "WHERE gid = " + id; |
| 302 | db.run(query); |
| 303 | }); |
| 304 | }, |
| 305 | |
| 306 | cleanGamesDb: function() |
| 307 | { |
| 308 | const tsNow = Date.now(); |
| 309 | // 86400000 = 24 hours in milliseconds |
| 310 | const day = 86400000; |
| 311 | db.serialize(function() { |
| 312 | let query = |
| 313 | "SELECT id, created " + |
| 314 | "FROM Games "; |
| 315 | db.all(query, (err,games) => { |
| 316 | games.forEach(g => { |
| 317 | query = |
| 318 | "SELECT count(*) as nbMoves, max(played) AS lastMaj " + |
| 319 | "FROM Moves " + |
| 320 | "WHERE gid = " + g.id; |
| 321 | db.get(query, (err2,mstats) => { |
| 322 | // Remove games still not really started, |
| 323 | // with no action in the last 3 months: |
| 324 | if ((mstats.nbMoves == 0 && tsNow - g.created > 91*day) || |
| 325 | (mstats.nbMoves == 1 && tsNow - mstats.lastMaj > 91*day)) |
| 326 | { |
| 327 | GameModel.remove(g.id); |
| 328 | } |
| 329 | }); |
| 330 | }); |
| 331 | }); |
| 332 | }); |
| 333 | }, |
| 334 | } |
| 335 | |
| 336 | module.exports = GameModel; |