<?php

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

if($_SESSION['id'] && $_POST['comment'] && (($_POST['client_id']) || ($_POST['req_id']))) {
    $post = clearInputData($_POST);

    $sql="SELECT * FROM clients WHERE id=$post[client_id]";
    $req_id = 0;
    if(isset($_POST['req_id']) && $_POST['req_id'] > 0){
       $req_id = (int)$_POST['req_id'];
    }
    if($req_id > 0){
       $sql="SELECT * FROM requisitions WHERE id=$req_id";
    }
    $rez=mysql_query($sql);
    $client = mysql_fetch_assoc($rez);

    $idUser = $_SESSION['id'];
    if ($client['who_work'] > 0 && $client['doer_clients'] == 0) {
        // тому событие, чей клиент
        $idUser = $client['who_work'];
    }

    $from_id = $_SESSION['id'];
    $sql = "INSERT INTO user_client_events(user_id, client_id, type, comment, from_id) ";
    $sql .= " VALUES($idUser, $post[client_id], 'comment', '$post[comment]', $from_id)";
    if($req_id > 0){
        $sql = "INSERT INTO user_client_events(user_id, req_id, type, comment, from_id) ";
        $sql .= " VALUES($idUser, $req_id, 'comment', '$post[comment]', $from_id)";
    }

    if (mysql_query($sql))
		echo json_encode(['success' => true]);
	else
		echo json_encode(['success' => false, 'error' => mysql_error()]);
}