<?php

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

$has_error = false;
$error_message = null;

if (isset($_POST["validate_video"])) {
	$validate_video = new ValidateVideo($_POST);
	try {
		$validate_video->makeVerifications();
		$validate_video->validate();
	}
	catch (AssertionError $e) {
		$has_error = true;
		$error_message = $e->getMessage();
	}
}

class ValidateVideo
{
	private $video_id;
	private $accept;
	private $reject;
	/** @var Video */
	private $video;
	private $message;

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

	public function makeVerifications()
	{
		$this->video = Video::fromId($this->video_id);
		ensure($this->video != null, "La vidéo n'existe pas.");
		ensure($this->video->getValidation() != 1, "La vidéo est déjà validée / rejetée.");
		ensure(($this->accept == null || $this->reject == null) && $this->accept != $this->reject, "Impossible de déterminer s'il faut accepter ou non la vidéo.");
	}

	public function validate()
	{
		$this->video->setValidation($this->accept ? 1 : -1);
		Mailer::validateVideo($this->video, $this->message);
	}
}

$videos = [];

if (!isset($_GET["problem"])) {
	for ($problem = 1; $problem <= 4; ++$problem)
		$videos[] = Video::getVideos(Reason::SOLUTION, $problem);
}
else {
	$videos = [[], [], [], []];
	$videos[intval($_GET["problem"]) - 1] = Video::getVideos(Reason::SOLUTION, intval($_GET["problem"]));
}

$waiting_teams = [];
$waiting_emails = [];

switch (Phase::getCurrentPhase()) {
	case Phase::PHASE1:
	case Phase::PHASE12:
		$req = $DB->query("SELECT DISTINCT `teams`.`id`, `teams`.`problem`, `teams`.`trigram` FROM `teams` WHERE `validation_status` = '" . ValidationStatus::getName(ValidationStatus::VALIDATED) . "'"
			. " AND `id` NOT IN (SELECT DISTINCT `team` FROM `videos` WHERE `reason` = 'SOLUTION' AND `validation` = " . Video::ACCEPTED . ")"
			. " AND `year` = $YEAR ORDER BY `problem`, `trigram`;");
		break;
	case Phase::PHASE2:
	case Phase::PHASE23:
		$req = $DB->query("SELECT DISTINCT `teams`.`id`, `teams`.`problem`, `teams`.`trigram` FROM `teams`"
			. " WHERE `id` NOT IN (SELECT `q1`.`from` FROM `questions` AS `q1`"
			. " JOIN `questions` AS `q2` ON `q2`.`from` = `q1`.`from` AND `q2`.`number` = 2"
			. " JOIN `questions` AS `q3` ON `q3`.`from` = `q1`.`from` AND `q3`.`number` = 3"
			. " JOIN `questions` AS `q4` ON `q4`.`from` = `q1`.`from` AND `q4`.`number` = 4"
			. " JOIN `questions` AS `q5` ON `q5`.`from` = `q1`.`from` AND `q5`.`number` = 5"
			. " JOIN `questions` AS `q6` ON `q6`.`from` = `q1`.`from` AND `q6`.`number` = 6"
            . " WHERE `q1`.`number` = 1"
			. " AND (`q1`.`question` != '" . Question::DEFAULT_QUESTIONS[0] . "'"
			. " OR `q2`.`question` != '" . Question::DEFAULT_QUESTIONS[1] . "'"
			. " OR `q3`.`question` != '" . Question::DEFAULT_QUESTIONS[2] . "'"
			. " OR `q4`.`question` IS NOT NULL"
			. " OR `q5`.`question` IS NOT NULL"
			. " OR `q6`.`question` IS NOT NULL))"
			. " AND `validation_status` = '" . ValidationStatus::getName(ValidationStatus::VALIDATED) . "'"
			. " AND `year` = $YEAR ORDER BY `problem`, `trigram`;");
		break;
	case Phase::PHASE3:
	case Phase::PHASE34:
		$req = $DB->query("SELECT DISTINCT `teams`.`id`, `teams`.`problem`, `teams`.`trigram` FROM `teams`"
			. " WHERE `id` NOT IN (SELECT `q1`.`to` FROM `questions` AS `q1`"
			. " JOIN `questions` AS `q2` ON `q2`.`to` = `q1`.`to` AND `q2`.`number` = 2"
			. " JOIN `questions` AS `q3` ON `q3`.`to` = `q1`.`to` AND `q3`.`number` = 3"
			. " JOIN `questions` AS `q4` ON `q4`.`to` = `q1`.`to` AND `q4`.`number` = 4"
			. " JOIN `questions` AS `q5` ON `q5`.`to` = `q1`.`to` AND `q5`.`number` = 5"
			. " JOIN `questions` AS `q6` ON `q6`.`to` = `q1`.`to` AND `q6`.`number` = 6"
            . " WHERE `q1`.`number` = 1"
			. " AND (`q1`.`answer` IS NOT NULL"
			. " OR `q2`.`answer` IS NOT NULL"
			. " OR `q3`.`answer` IS NOT NULL"
			. " OR `q4`.`answer` IS NOT NULL"
			. " OR `q5`.`answer` IS NOT NULL"
			. " OR `q6`.`answer` IS NOT NULL))"
			. " AND `validation_status` = '" . ValidationStatus::getName(ValidationStatus::VALIDATED) . "'"
			. " AND `year` = $YEAR ORDER BY `problem`, `trigram`;");
		break;
	case Phase::PHASE4:
	case Phase::END:
		$req = $DB->query("SELECT DISTINCT `teams`.`id`, `teams`.`problem`, `teams`.`trigram` FROM `teams` WHERE `validation_status` = '" . ValidationStatus::getName(ValidationStatus::VALIDATED) . "'"
			. " AND (`id` NOT IN (SELECT DISTINCT `team` FROM `videos` WHERE `reason` = 'ANSWER1' AND `validation` = " . Video::ACCEPTED . ")"
			. " OR `id` NOT IN (SELECT DISTINCT `team` FROM `videos` WHERE `reason` = 'ANSWER2' AND `validation` = " . Video::ACCEPTED . "))"
			. " AND `year` = $YEAR ORDER BY `problem`, `trigram`;");
		break;
}

if (isset($req)) {
	$waiting_emails = [];
	while (($data = $req->fetch()) !== false) {
		$team = Team::fromId($data["id"]);
		if (Phase::getCurrentPhase() >= Phase::PHASE12 && $team->getSolution() == null)
			continue;
		if (isset($_GET["problem"]) && intval($_GET["problem"]) != $team->getProblem())
			continue;
		$waiting_teams[] = $team;
		$waiting_emails = array_merge($waiting_emails, $team->getAllEmails());
	}
}

$all_emails = [];
foreach (Team::getAllTeams() as $team) {
	if (Phase::getCurrentPhase() >= Phase::PHASE12 && $team->getSolution() == null)
		continue;
	if (isset($_GET["problem"]) && intval($_GET["problem"]) != $team->getProblem())
		continue;
	$all_emails = array_merge($all_emails, $team->getAllEmails());
}

require_once "server_files/views/suivi_correspondances.php";