<?php
function getRaccourcis($bdd)
{
    $results = mysqli_query($bdd, "SELECT * FROM `raccourcis`");
    $return = [];
    return $results;
}

function connectBDD($domain, $user, $password, $db)
{
    $link = mysqli_connect($domain, $user, $password, $db);

    if (!$link) {
        die('Erreur de connexion');
    } else {
        mysqli_set_charset($link, "utf8");

        return $link;
    }
}

function getActus($bdd)
{
    $results = mysqli_query($bdd, "SELECT * FROM `actus` ORDER BY `id` LIMIT 4");
    $return = [];
    return $results;
}

function validateCSRFToken($csrf_server, $csrf_client)
{
    if (!hash_equals($csrf_server, $csrf_client)) {
        echo ($csrf_client . " " . $csrf_server);
        die('CSRF token validation failed');
    }
    return true;
}

function verifyPassword($hash_password, $tryPassword)
{
    $hashTry = hash('sha256', $tryPassword);
    if ($hash_password == $hashTry) {
        return true;
    }
    return false;
}

function getHashPwd($bdd, $username)
{

    $stmt = mysqli_prepare(
        $bdd,
        "SELECT password FROM utilisateurs WHERE username = ? LIMIT 1"
    );

    mysqli_stmt_bind_param($stmt, "s", $username);
    mysqli_stmt_execute($stmt);

    $result = mysqli_stmt_get_result($stmt);
    $user = mysqli_fetch_assoc($result);

    mysqli_stmt_close($stmt);

    return $user; // retourne un tableau ou null
}

function getEvenements($bdd, $site)
{

    $results = mysqli_query(
        $bdd,
        "SELECT * FROM evenements WHERE `site_id`='" . $site . "' ORDER BY date DESC"
    );

    $evenements = [];

    while ($row = mysqli_fetch_assoc($results)) {
        $evenements[] = $row;
    }

    return $evenements;
}

function getSite($bdd, $username)
{
    $stmt = mysqli_prepare(
        $bdd,
        "SELECT site_id FROM utilisateurs WHERE username = ? LIMIT 1"
    );

    mysqli_stmt_bind_param($stmt, "s", $username);
    mysqli_stmt_execute($stmt);

    $result = mysqli_stmt_get_result($stmt);
    $row = mysqli_fetch_assoc($result);

    mysqli_stmt_close($stmt);

    return $row ? $row['site_id'] : null;
}

function getSiteName($bdd, $site)
{
    $stmt = mysqli_prepare(
        $bdd,
        "SELECT nom FROM site WHERE site_id = ? LIMIT 1"
    );

    mysqli_stmt_bind_param($stmt, "s", $site);
    mysqli_stmt_execute($stmt);

    $result = mysqli_stmt_get_result($stmt);
    $row = mysqli_fetch_assoc($result);

    mysqli_stmt_close($stmt);

    return $row ? $row['nom'] : null;
}

function getEventName($bdd, $event)
{
    $stmt = mysqli_prepare(
        $bdd,
        "SELECT titre FROM evenements WHERE id = ? LIMIT 1"
    );

    mysqli_stmt_bind_param($stmt, "s", $event);
    mysqli_stmt_execute($stmt);

    $result = mysqli_stmt_get_result($stmt);
    $row = mysqli_fetch_assoc($result);

    mysqli_stmt_close($stmt);

    return $row ? $row['titre'] : null;
}

function getEventImages($bdd, $event)
{
    $results = mysqli_query(
        $bdd,
        "SELECT * FROM gallerie WHERE `event_id`='" . $event . "'"
    );

    $evenements = [];

    while ($row = mysqli_fetch_assoc($results)) {
        $evenements[] = $row;
    }

    return $evenements;
}

function getEventBigImage($bdd, $event)
{
    $stmt = mysqli_prepare(
        $bdd,
        "SELECT couverture FROM evenements WHERE id = ? LIMIT 1"
    );

    mysqli_stmt_bind_param($stmt, "s", $event);
    mysqli_stmt_execute($stmt);

    $result = mysqli_stmt_get_result($stmt);
    $row = mysqli_fetch_assoc($result);

    mysqli_stmt_close($stmt);

    return $row ? $row['couverture'] : null;
}

function getUserPerms($bdd, $username)
{
    $stmt = mysqli_prepare(
        $bdd,
        "SELECT permissions FROM utilisateurs WHERE username = ? LIMIT 1"
    );

    mysqli_stmt_bind_param($stmt, "s", $username);
    mysqli_stmt_execute($stmt);

    $result = mysqli_stmt_get_result($stmt);
    $row = mysqli_fetch_assoc($result);

    mysqli_stmt_close($stmt);

    return $row ? $row['permissions'] : null;
}

function verifyPoids($bdd, $username, $minPoids) {
    $sql = "SELECT p.poids 
            FROM utilisateurs u
            INNER JOIN permissions p ON u.permissions = p.nom
            WHERE u.username = ?";
            
    $stmt = mysqli_prepare($bdd, $sql);
    
    if ($stmt) {
        mysqli_stmt_bind_param($stmt, "s", $username);
        mysqli_stmt_execute($stmt);
        
        $result = mysqli_stmt_get_result($stmt);
        $row = mysqli_fetch_assoc($result);
        
        mysqli_stmt_close($stmt);

        if ($row) {
            return (int)$row['poids'] >= (int)$minPoids;
        }
    }
    
    return false;
}

function updateEventTitle($bdd, $eventid, $titre){
    $stmt = mysqli_prepare(
        $bdd,
        "UPDATE evenements SET titre = ? WHERE id = ?"
    );

    mysqli_stmt_bind_param($stmt, "si", $titre, $eventid);
    mysqli_stmt_execute($stmt);

    $success = mysqli_stmt_affected_rows($stmt) >= 0;

    mysqli_stmt_close($stmt);

    return $success;
}

function updateEventImage($bdd, $eventId, $newFileName){
    $stmt = mysqli_prepare(
        $bdd,
        "UPDATE evenements SET couverture = ? WHERE id = ?"
    );

    mysqli_stmt_bind_param($stmt, "si", $newFileName, $eventId);
    mysqli_stmt_execute($stmt);

    $success = mysqli_stmt_affected_rows($stmt) >= 0;

    mysqli_stmt_close($stmt);

    return $success;
}