/**
* Insertion test
*
* @return void
*/
public function testInsert()
{
$user1 = factory(App\Models\User::class)->create();
$user2 = factory(App\Models\User::class)->create();
$battleRequest = new BattleRequest();
$battleRequest->challenger_id = $user1->id;
$battleRequest->challenged_id = $user2->id;
$battleRequest->save();
// is request in database?
$this->seeInDatabase('battle_requests', ['challenger_id' => $user1->id, 'challenged_id' => $user2->id]);
// can challenger and challenged user be retrieved?
$this->assertNotNull($battleRequest->challenger()->get()->values()->keyBy('id')->get($user1->id));
$this->assertNotNull($battleRequest->challenged()->get()->values()->keyBy('id')->get($user2->id));
// can users retrieve their open battles?
$this->assertNotNull($user1->BattleRequestsChallenger()->get()->values()->keyBy('id')->get($battleRequest->id));
$this->assertNotNull($user2->BattleRequestsChallenged()->get()->values()->keyBy('id')->get($battleRequest->id));
}
/**
* Find a random opponent for the authenticated user based on rating.
*
* @return \Illuminate\Http\JsonResponse
*/
public function getRandomOpponent()
{
$user = Auth::user();
if (is_null($user)) {
return response('Unauthorized', 401);
}
// Number of possible opponents = Number of rappers - 1 (Authenticated user)
// - Number of open battles of authenticated user
// - Number of battle requests of authenticated user
$possibleOpponentCount = User::rapper()->count() - 1 - $user->openBattles()->count() - $user->battleRequests()->count();
$opponent = null;
// This is faster because there are no unecessary iterations.
if ($possibleOpponentCount == 1) {
// There is only one possible opponent.
$opponent = User::validOpponentFor($user)->first();
} elseif ($possibleOpponentCount > 1) {
// Increase the search range exponentially to make sure an opponent is found.
$exponentialBase = 2;
$rating = $user->rating;
$validOpponents = User::validOpponentFor($user);
$validOpponentsCnt = $validOpponents->count();
if (!$validOpponents->get()->isEmpty()) {
for ($i = 0; is_null($opponent); $i++) {
$range = pow($exponentialBase, $i);
$minRating = $rating - $range;
$maxRating = $rating + $range;
$possibleOpponents = $validOpponents->ratedBetween($minRating, $maxRating)->get();
if (!$possibleOpponents->isEmpty()) {
$opponent = $possibleOpponents->random();
// Log for later optimizing
Log::info('Random opponent found.', ['possible opponents' => $possibleOpponentCount, 'exponential base' => $exponentialBase, 'iterations' => $i]);
}
}
}
}
if (!is_null($opponent)) {
$battleRequest = new BattleRequest();
$battleRequest->challenger()->associate($user);
$battleRequest->challenged()->associate($opponent);
$battleRequest->save();
$opponent = $opponent->profilePreview();
}
return response()->json(['opponent' => $opponent]);
}
