Draft Game and Challenge models

[vchess.git] / models / Game.js

diff --git a/models/Game.js b/models/Game.js
index d279514..72f1ea8 100644 (file)
--- a/models/Game.js
+++ b/models/Game.js
@@ -1 +1,105 @@
-//TODO:
+var db = require("../utils/database");
+
+/*
+ * Structure table Games:
+ *   id: game id (int)
+ *   vid: integer (variant id)
+ *   fen: varchar (initial position)
+ *   mainTime: integer
+ *   increment: integer
+ *   score: varchar (result)
+ *
+ * Structure table Players:
+ *   gid: ref game id
+ *   uid: ref user id
+ *   color: character
+ *
+ * Structure table Moves:
+ *   move: varchar (description)
+ *   played: datetime
+ *   idx: integer
+ *   color: character
+ */
+
+exports.create = function(vid, fen, mainTime, increment, players, cb)
+{
+       db.serialize({
+               let query =
+                       "INSERT INTO Games (vid, fen, mainTime, increment) " +
+                       "VALUES (" + vid + ",'" + fen + "'," + mainTime + "," + increment + ")";
+               db.run(insertQuery, err => {
+                       if (!!err)
+                               return cb(err);
+                       db.get("SELECT last_insert_rowid() AS rowid", (err2,lastId) => {
+                               players.forEach(p => {
+                                       query =
+                                               "INSERT INTO Players VALUES " +
+                                               "(" + lastId["rowid"] + "," + p.id + "," + p.color + ")";
+                                       db.run(query, cb);
+                               });
+                       });
+               });
+       });
+}
+
+// TODO: queries here could be async, and wait for all to complete
+exports.getOne = function(id, cb)
+{
+       db.serialize(function() {
+               let query =
+                       "SELECT v.name AS vname, g.fen, g.score " +
+                       "FROM Games g " +
+                       "JOIN Variants v " +
+                       "  ON g.vid = v.id "
+                       "WHERE id = " + id;
+               db.get(query, (err,gameInfo) => {
+                       if (!!err)
+                               return cb(err);
+                       query =
+                               "SELECT p.uid AS id, p.color, u.name " +
+                               "FROM Players p " +
+                               "JOIN Users u " +
+                               "  ON p.uid = u.id " +
+                               "WHERE p.gid = " + id;
+                       db.run(query, (err2,players) => {
+                               if (!!err2)
+                                       return cb(err2);
+                               query =
+                                       "SELECT move AS desc, played, idx, color " +
+                                       "FROM Moves " +
+                                       "WHERE gid = " + id;
+                               db.run(query, (err3,moves) => {
+                                       if (!!err3)
+                                               return cb(err3);
+                                       const game = {
+                                               id: id,
+                                               vname: gameInfo.vname,
+                                               fen: gameInfo.fen,
+                                               score: gameInfo.score,
+                                               players: players,
+                                               moves: moves,
+                                       };
+                                       return cb(null, game);
+                               });
+                       });
+               });
+       });
+}
+
+exports.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);
+       });
+}