<?php

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

$has_error = false;
$error_message = null;

if (isset($_POST["add_team"])) {
    $new_team = new NewTeam($_POST);
    try {
    	$new_team->makeVerifications();
    	$new_team->register();
	}
	catch (AssertionError $e) {
    	$has_error = true;
    	$error_message = $e->getMessage();
	}
}

class NewTeam {
	public $name;
	public $trigram;
	public $problem;
	public $allow_other_teams;
	public $allow_publish;
	public $access_code;

	public function __construct($data)
	{
		foreach ($data as $key => $value)
			$this->$key = htmlspecialchars($value);

		$this->trigram = strtoupper($this->trigram);

		$this->allow_other_teams = $this->allow_other_teams == "on" ? 1 : 0;
		$this->allow_publish = $this->allow_publish == "on" ? 1 : 0;
	}

	public function makeVerifications() {
		global $CONFIG;

		ensure(date("Y-m-d H:i:s") < $CONFIG->getInscriptionDate(), "La date limite d'inscription est dépassée.");
		ensure($_SESSION["team"] == null || $_SESSION["role"] == Role::ENCADRANT, "Vous êtes déjà dans une équipe.");
		ensure($this->name != null && $this->name != "", "Vous devez spécifier un nom d'équipe.");
		ensure(preg_match("#^[\p{L} ]+$#ui", $this->name), "Le nom de l'équipe ne doit pas comporter de caractères spéciaux.");
		ensure(preg_match("#^[A-Z]{3}$#", $this->trigram), "Le trigramme entré n'est pas valide.");
		ensure(!teamExists($this->name), "Une équipe existe déjà avec ce nom.");
		ensure(!trigramExists($this->trigram), "Une équipe a déjà choisi ce trigramme.");
		ensure(preg_match("#[0-4]#", $this->problem), "Le problème choisi n'a pas été reconnu.");
		ensure($this->allow_other_teams, "Vous devez autoriser de diffuser vos vidéos aux autres équipes participantes pour pouvoir participer.");
	}

	public function register() {
		global $DB, $YEAR;

		$this->access_code = genRandomPhrase(6);

		$req = $DB->prepare("INSERT INTO `teams` (`name`, `trigram`, `problem`, `encadrant`, `participant_1`, `allow_publish`, `validation_status`, `access_code`, `year`)
                           VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?);");
		$req->execute([$this->name, $this->trigram, $this->problem, $_SESSION["role"] == Role::ENCADRANT ? $_SESSION["user_id"] : NULL,
			$_SESSION["role"] == Role::PARTICIPANT ? $_SESSION["user_id"] : NULL, $this->allow_publish, ValidationStatus::getName(ValidationStatus::NOT_READY), $this->access_code, $YEAR]);

		$_SESSION["teams"] = $_SESSION["user"]->getTeams();
		$team = Team::fromTrigram($this->trigram);
		if ($_SESSION["role"] == Role::PARTICIPANT) {
			$_SESSION["team"] = $team;
			$_SESSION["user"]->setTeamId($_SESSION["team"]->getId());
		}

		Mailer::sendAddTeamMail($_SESSION["user"], $team);
	}
}

require_once "server_files/views/ajouter_equipe.php";