<?php

if (!isset($_SESSION["user_id"]) || $_SESSION["role"] != Role::PARTICIPANT && $_SESSION["role"] != Role::ENCADRANT || Phase::getCurrentPhase() != Phase::PHASE2)
	require_once "server_files/403.php";

/**
 * @var User $user
 * @var Team $team
 */
$user = $_SESSION["user"];
$team = $user->getRole() == Role::PARTICIPANT ? $_SESSION["team"] : Team::fromTrigram($_GET["trigram"]);

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

if ($user->getRole() == Role::ENCADRANT && $team->getEncadrantId() != $user->getId() || $team->getValidationStatus() != ValidationStatus::VALIDATED)
	require_once "server_files/403.php";

$has_error = false;
$error_message = null;

if (isset($_POST["give_questions"])) {
	$give_questions = new GiveQuestions($_POST, $_FILES);
	try {
		$give_questions->makeVerifications();
		$give_questions->giveQuestions();
	} catch (AssertionError $e) {
		$has_error = true;
		$error_message = $e->getMessage();
	}
}

class GiveQuestions
{
	private $to;
	/**
	 * @var Team $to_team
	 */
	private $to_team;
    private $question_0;
    private $question_1;
	private $question_2;
	private $question_3;
	private $question_4;
	private $question_5;
	private $question_6;
	private $questions;
	private $no_drawing;
	private $has_files;
	private $files;

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

		$this->files = [];
		$this->has_files = false;

		for ($i = 0; $i <= 6; ++$i) {
			if (strlen($files["file_$i"]["name"]) > 0) {
				$this->files[] = $files["file_$i"];
				$this->has_files = true;
			}
			else
				$this->files[] = null;
		}

		$this->questions = [$this->question_0, $this->question_1, $this->question_2, $this->question_3, $this->question_4, $this->question_5, $this->question_6];
	}

	public function makeVerifications()
	{
		global $LOCAL_PATH, $team;

		$this->to_team = Team::fromTrigram($this->to);
		ensure($this->to_team, "L'équipe indiquée n'existe pas.");
		ensure($team->getProblem() == $this->to_team->getProblem(), "Les équipes ne travaillent pas sur le même problème.");
		ensure($this->question_1 != null && $this->question_1 != "" && $this->question_2 != null && $this->question_2 != "" && $this->question_3 != null && $this->question_3 != "",
				"Vous devez poser au moins 3 questions.");
		ensure(!$this->has_files || $this->no_drawing, "Vous devez confirmer ne pas avoir inclus de texte dans vos pièces jointes.");

		for ($i = 4; $i <= 6; ++$i) {
			if ($this->questions[$i] == "")
				$this->questions[$i] = null;
		}

		for ($i = 0; $i <= 6; ++$i) {
			ensure($this->files[$i]["size"] <= 2e6, "Le fichier doit peser moins que 2 Mo.");
			ensure(!$this->files[$i]["error"], "Une erreur est survenue. Veuillez vérifier vos pièces jointes. Elles ne doivent pas peser plus de 2 Mo chacune.");
		}

		ensure(is_dir("$LOCAL_PATH/files") || mkdir("$LOCAL_PATH/files"), "Un problème est survenue dans l'envoi du fichier. Veuillez contacter l'administrateur du serveur.");
	}

	public function giveQuestions()
	{
		global $LOCAL_PATH, $team;

		/** @var Question[] $questions */
		$questions = Question::getQuestions($team, $this->to_team);
		for ($i = 0; $i <= 6; ++$i) {
			$question = $questions[$i];
			if ($question->getQuestion() != $this->questions[$i] && $question->getAttachedFile() != null) {
				unlink("$LOCAL_PATH/files/" . $question->getAttachedFile());
				$question->setAttachedFile(null);
			}

			$question->setQuestion($this->questions[$i]);

			if ($this->files[$i] != null) {
				do
					$file_id = genRandomPhrase(64);
				while (file_exists("$LOCAL_PATH/files/$file_id"));

				if (!rename($this->files[$i]["tmp_name"], "$LOCAL_PATH/files/$file_id"))
					throw new AssertionError("Une erreur est survenue lors de l'envoi du fichier.");

				$question->setAttachedFile($file_id);
			}
		}
	}
}

/**
 * @var Team[] $receivers
 * @var Video[] $videos
 * @var Question[][] $questions
 */
$receivers = [Team::fromId($team->getVideoTeamIds()[0]), Team::fromId($team->getVideoTeamIds()[1])];
$videos = [Video::getVideo(Reason::SOLUTION, $receivers[0], Video::ACCEPTED),
	Video::getVideo(Reason::SOLUTION, $receivers[1], Video::ACCEPTED)];
$questions = [Question::getQuestions($team, $receivers[0]),
	Question::getQuestions($team, $receivers[1])];

require_once "server_files/views/poser_questions.php";