* fen: varchar (current position)
* timeControl: string
* score: varchar (result)
+ * created: datetime
*
* Structure table Players:
* gid: ref game id
* uid: ref user id
* color: character
- * rtime: real (remaining time)
*
* Structure table Moves:
* gid: ref game id
- * move: varchar (description)
+ * squares: varchar (description)
* message: text
* played: datetime
* idx: integer
- * color: character
*/
const GameModel =
{
db.serialize(function() {
let query =
- "INSERT INTO Games (vid, fenStart, score, timeControl) " +
- "VALUES (" + vid + ",'" + fen + "','*','" + timeControl + "')";
+ "INSERT INTO Games (vid, fenStart, fen, score, timeControl, created)"
+ + " VALUES (" + vid + ",'" + fen + "','" + fen + "','*','"
+ + timeControl + "'," + Date.now() + ")";
db.run(query, function(err) {
if (!!err)
return cb(err);
const color = (idx==0 ? "w" : "b");
query =
"INSERT INTO Players VALUES " +
- // Remaining time = -1 means "unstarted"
- "(" + this.lastID + "," + p.id + ",'" + color + "', -1)";
+ "(" + this.lastID + "," + p.id + ",'" + color + "')";
db.run(query);
});
cb(null, {gid: this.lastID});
getOne: function(id, cb)
{
db.serialize(function() {
+ // TODO: optimize queries?
let query =
- "SELECT * " +
- "FROM Games " +
- "WHERE id = " + id;
+ "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 uid, color, rtime " +
- "FROM Players " +
- "WHERE gid = " + id;
+ "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 move, message, played, idx, color " +
+ "SELECT squares, message, played, idx " +
"FROM Moves " +
"WHERE gid = " + id;
db.all(query, (err3,moves) => {
"SELECT gid " +
"FROM Players " +
"WHERE uid " + (excluded ? "<>" : "=") + " " + uid;
- db.run(query, (err,gameIds) => {
+ db.all(query, (err,gameIds) => {
if (!!err)
return cb(err);
gameIds = gameIds || []; //might be empty
let gameArray = [];
- gameIds.forEach(gidRow => {
- GameModel.getOne(gidRow["gid"], (err2,game) => {
+ 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);
});
- });
- return cb(null, gameArray);
+ }
});
});
},
},
// obj can have fields move, fen and/or score
- update: function(id, obj, cb)
+ update: function(id, obj)
{
- db.serialize(function() {
+ db.parallelize(function() {
let query =
"UPDATE Games " +
"SET ";
- if (!!obj.move)
- {
- move.played = Date.now();
- query += "move = " + obj.move + ","; //TODO: already stringified?!
- }
if (!!obj.fen)
- query += "fen = " + obj.fen + ",";
+ query += "fen = '" + obj.fen + "',";
if (!!obj.score)
- query += "score = " + obj.score + ",";
+ query += "score = '" + obj.score + "',";
query = query.slice(0,-1); //remove last comma
- query += " WHERE gameId = " + id;
- db.run(query, (err) => {
- cb(err);
- });
+ query += " WHERE id = " + id;
+ db.run(query);
+ if (!!obj.move)
+ {
+ const m = obj.move;
+ query =
+ "INSERT INTO Moves (gid, squares, message, played, idx) VALUES " +
+ "(" + id + ",'" + JSON.stringify(m.squares) + "','" + m.message +
+ "'," + m.played + "," + m.idx + ")";
+ db.run(query);
+ }
});
},
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;