Help needed with passport authentication and for loops

Currently developing authentication using passportjs, express, mongodb.I had to do nested looping in order to check if username is already being used in multiple arrays. I have 3 for loops setup which is the problem. Whenever i sign up as new user (player in this case) it runs that code multiple times and signs up user twice/thrice with the same username but different ID of course, which is not what i want. I even have an if / else statement that checks if username is already used, but it ignores it.Here is the code:const game = await Game.findById(req.body.gameId); const allGames = await Game.find({}); const findPlayerUsername = await PlayerModel.find({username: req.body.username}); // Check if email is already used const existPlayer = await PlayerModel.find({}); if (existPlayer) { try { if (game.players !== undefined && game.players.length >= 1) { allGamesLoop: for (let i = 0; i < allGames.length; i++) { allGamesPlayersLoop: for (let j = 0; j < allGames[i].players.length; j++) { gamePlayersLoop: for (let k = 0; k < game.players.length; k++) { if (allGames[i].players[j].username !== req.body.username && game.players[k].username !== req.body.username) { console.log('Phase 1'); paHelper.registerPlayer(PlayerModel, passport, game, Game, req, res); } else if (allGames[i].players[j].username === req.body.username && game.players[k].username === req.body.username) { if (game.players[k].username === req.body.username) { console.log('Phase 2 NOTA'); res.json({message: 'Cannot have same username in the same game'}); } else if (game.players[k].username ``== req.body.username) { console.log('Phase 2'); paHelper.copyPastePlayer(findPlayerUsername, game, req, res); } } }; // For Loops }; }; } else { // Check if player doesn't exists if (findPlayerUsername.length === 0 || !findPlayerUsername[0].username) { console.log('Phase 3'); paHelper.registerPlayer(PlayerModel, passport, game, Game, req, res); // Check if players username is same as inserted username } else if (findPlayerUsername[0].username === req.body.username) { console.log('Phase 3.5'); paHelper.copyPastePlayer(findPlayerUsername, game, req, res); } } } catch (err) { throw new Error(err); } } else { res.json({message: 'Player Already Exists'}) } It kinda is a mess, because it has multiple conditional statements. Main problem is the first if statement in nested loops (phase 1). Though sometimes, code runs phase 3 and than phase 1 3 times.. which is not expected behaviour.

Submitted May 17, 2019 at 02:37PM by OMGitsBIP