plateforme-corres2math/server_files/controllers/rejoindre_equipe.php

<?php

if (isset($_SESSION["team"]) || !isset($_SESSION["user"]) || ($_SESSION["role"] != Role::PARTICIPANT && $_SESSION["role"] != Role::ENCADRANT))
	require_once "server_files/403.php";

$has_error = false;
$error_message = null;

if (isset($_POST["submitted"])) {
	$join_team = new JoinTeam($_POST);
	try {
		$join_team->makeVerifications();
		$join_team->joinTeam();
	} catch (AssertionError $e) {
		$has_error = true;
		$error_message = $e->getMessage();
	}
}

class JoinTeam
{
	private $access_code;
	private $team;
	private $min_null_index;

	public function __construct($data)
	{
		$this->access_code = strtolower(htmlspecialchars($data["access_code"]));
		$this->team = Team::fromAccessCode($this->access_code);
	}

	public function makeVerifications()
	{
		ensure(preg_match("#[a-z0-9]{6}#", $this->access_code), "Le code d'accès doit comporter 6 caractères alphanumériques.");
		ensure($this->team != null, "Ce code d'accès est invalide.");
		ensure($this->team->getValidationStatus() == ValidationStatus::NOT_READY, "Cette équipe est déjà validée ou en cours de validation, vous ne pouvez pas la rejoindre.");

		for ($i = 1; $i <= $_SESSION["role"] == Role::PARTICIPANT ? 5 : 1; ++$i) {
			if (($_SESSION["role"] == Role::PARTICIPANT ? $this->team->getParticipants()[$i - 1] : $this->team->getEncadrantId()) == NULL)
				break;
		}

		$this->min_null_index = $i;

		ensure($_SESSION["role"] == Role::PARTICIPANT && $this->min_null_index <= 5 || $_SESSION["role"] == Role::ENCADRANT && $this->min_null_index <= 2, "Il n'y a plus de place pour vous dans l'équipe.");
	}

	public function joinTeam()
	{
		$user = $_SESSION["user"];

		$user->setTeamId($this->team->getId());

		if ($_SESSION["role"] == Role::ENCADRANT)
			$this->team->setEncadrant($user->getId());
		else
			$this->team->setParticipant($this->min_null_index, $user->getId());

		$_SESSION["team"] = $this->team;

		Mailer::sendJoinTeamMail($user, $this->team);
	}
}

require_once "server_files/views/rejoindre_equipe.php";