<?php

$tournament_name = htmlspecialchars($_GET["name"]);

$tournament = Tournament::fromName($tournament_name);

if ($tournament === null)
	require_once "server_files/404.php";

$orgas_req = $DB->query("SELECT `users`.`id` AS `id` FROM `users` JOIN `organizers` ON `users`.`id` = `organizer` WHERE `tournament` = " . $tournament->getId() . ";");
$orgas = [];
$orgas_id = [];
while (($orga_data = $orgas_req->fetch()) !== false) {
    $orgas[] = User::fromId($orga_data["id"]);
    $orgas_id[] = $orga_data["id"];
}

if (isset($_GET["modifier"]) && $_SESSION["role"] != Role::ADMIN && !in_array($_SESSION["user_id"], $orgas_id))
    require_once "server_files/403.php";

if (isset($_POST["edit_tournament"])) {
	$error_message = updateTournament();
}

if ($tournament->isFinal())
	$teams_response = $DB->query("SELECT `id`, `name`, `trigram`, `inscription_date`, `validation_status` FROM `teams` WHERE `final_selection` AND `year` = $YEAR;");
else
    $teams_response = $DB->query("SELECT `id`, `name`, `trigram`, `inscription_date`, `validation_status` FROM `teams` WHERE `tournament` = " . $tournament->getId() . " AND `year` = $YEAR;");

$orgas_response = $DB->query("SELECT `id`, `surname`, `first_name` FROM `users` WHERE (`role` = 'ORGANIZER' OR `role` = 'ADMIN') AND `year` = '$YEAR';");

function updateTournament() {
	global $DB, $URL_BASE, $YEAR, $tournament;

    $name = htmlspecialchars($_POST["name"]);

	$result = $DB->query("SELECT `id` FROM `tournaments` WHERE `name` = '" . $name . "' AND `id` != " . $tournament->getId() . " AND `year` = '$YEAR';");
	if ($result->fetch())
		return "Un tournoi existe déjà avec ce nom.";

	if (!isset($_POST["organizer"]) || sizeof($_POST["organizer"]) == 0)
		return "Aucun organisateur n'a été choisi.";

	if ($_SESSION["role"] == Role::ADMIN) {
		$organizers = $_POST["organizer"];
		$orga_mails = [];

		foreach ($organizers as $orga_id) {
			$orga = User::fromId($orga_id);
			if ($orga === null)
				return "L'organisateur spécifié n'existe pas.";
			if ($orga->getRole() != Role::ORGANIZER && $orga->getRole() != Role::ADMIN)
				return "L'organisateur indiqué ne peut pas organiser de tournoi.";
			$orga_mails[] = $orga->getEmail();
		}
	}

	try {
		$size = intval(htmlspecialchars($_POST["size"]));
	}
	catch (Exception $ex) {
		return "Le nombre d'équipes indiqué n'est pas un entier valide.";
	}

	if ($size < 3 || $size > 12)
		return "Un tournoi doit comporter entre 3 et 12 équipes.";

	$place = htmlspecialchars($_POST["place"]);

	try {
		$price = intval(htmlspecialchars($_POST["price"]));
	}
	catch (Throwable $t) {
		return "Le tarif pour les participants n'est pas un nombre valide.";
	}

	if ($price < 0)
		return "Le TFJM² ne va pas payer les élèves pour venir.";

	if ($price > 50)
		return "Soyons raisonnable sur le prix.";

	$date_start = htmlspecialchars($_POST["date_start"]);
	$date_start_parsed = date_parse_from_format("yyyy-mm-dd", $date_start);

	$date_end = htmlspecialchars($_POST["date_end"]);
	$date_end_parsed = date_parse_from_format("yyyy-mm-dd", $date_end);

	$date_inscription = htmlspecialchars($_POST["date_inscription"]);
	$time_inscription = htmlspecialchars($_POST["time_inscription"]);
	$date_inscription_parsed = date_parse_from_format("yyyy-mm-dd", $date_inscription . ' ' . $time_inscription);

	$date_solutions = htmlspecialchars($_POST["date_solutions"]);
	$time_solutions = htmlspecialchars($_POST["time_solutions"]);
	$date_solutions_parsed = date_parse_from_format("yyyy-mm-dd", $date_solutions . ' ' . $time_solutions);

	$date_syntheses = htmlspecialchars($_POST["date_syntheses"]);
	$time_syntheses = htmlspecialchars($_POST["time_syntheses"]);
	$date_syntheses_parsed = date_parse_from_format("yyyy-mm-dd", $date_syntheses . ' ' . $time_syntheses);

	if (!$date_start_parsed || !$date_end_parsed || !$date_inscription_parsed || !$date_solutions_parsed || !$date_syntheses_parsed)
		return "Une date est mal formée.";

	$description = htmlspecialchars($_POST["description"]);

	$req = $DB->prepare("UPDATE `tournaments` SET `name` = ?, `size` = ?, `place` = ?, `price` = ?, `description` = ?, 
                           `date_start` = ?, `date_end` = ?, `date_inscription` = ?, `date_solutions` = ?, `date_syntheses` = ?
                            WHERE `id` = " . $tournament->getId() . ";");
	$req->execute([$name, $size, $place, $price, $description, $date_start, $date_end,
		"$date_inscription $time_inscription", "$date_solutions $time_solutions", "$date_syntheses $time_syntheses"]);

	if ($_SESSION["role"] == Role::ADMIN) {
		$DB->exec("DELETE FROM `organizers` WHERE `tournament` = " . $tournament->getId() . ";");
		foreach ($organizers as $orga) {
			$req = $DB->prepare("INSERT INTO `organizers`(`organizer`, `tournament`) VALUES(?, ?);");
			$req->execute([$orga->getId(), $tournament->getId()]);
		}
	}

	header("Location: $URL_BASE/tournoi/" . $name);
	exit();
}

require_once "server_files/views/tournoi.php";