<?php
require_once($_SERVER['DOCUMENT_ROOT']."/config.php");

if(!$_SESSION['id']) {
    die(json_encode(['error' => 'Доступ запрещён']));
}

$id = (int)$_POST['id'];
$req_id = (int)$_POST['req_id'];
$adjacent_id = (int)$_POST['adjacent_id'];
$deleted_req = (int)$_POST['deleted_req'];

$response = ['has_owner' => false, 'owner_name' => ''];

if ($adjacent_id > 0) {
    $sql = "SELECT u.first_name, u.last_name, u.middle_name 
            FROM adjacent_funnels af
            JOIN users u ON af.who_work = u.id
            WHERE af.id = $adjacent_id AND af.who_work > 0";
} elseif ($req_id > 0) {
    if ($deleted_req == 1) {
        $sql = "SELECT u.first_name, u.last_name, u.middle_name
                FROM requisitions r
                JOIN users u ON r.who_work = u.id
                WHERE r.id = $req_id AND r.deleted = 0";
    } else {
        $sql = "SELECT u.first_name, u.last_name, u.middle_name 
            FROM requisitions r
            JOIN users u ON r.who_work = u.id
            WHERE r.id = $req_id AND r.who_work > 0";
    }
} else {
    $sql = "SELECT u.first_name, u.last_name, u.middle_name 
            FROM clients c
            JOIN users u ON c.who_work = u.id
            WHERE c.id = $id AND c.who_work > 0";
}

$result = mysql_query($sql);
if (mysql_num_rows($result) > 0) {
    $row = mysql_fetch_assoc($result);
    $response['has_owner'] = true;
    $response['owner_name'] = trim($row['last_name'] . ' ' . $row['first_name'] . ' ' . $row['middle_name']);
}

header('Content-Type: application/json');
echo json_encode($response);