<?php
require_once "lib/api.php";
require_once "lib/auftrag.php";
require_once "lib/helper.php";
if (!file_exists("../data/".date("Y"))) {
    mkdir("../data/".date("Y"));
}

session_start();
if (isset($_COOKIE['MODE']) && $_COOKIE['MODE'] == 'local') {
    $_SESSION['mode'] = 'local';
}
if (isset($_SESSION['last_activity']) && $_SESSION['last_activity'] < time()-(20*60)) {
    // Session seit 20 Minuten nicht benutzt
    if (isset($_SESSION['kundennr']) || isset($_SESSION['orderid'])) {
        // Session hat Inhalt
        // Auftrag lokal speichern
        $filename = "../data/".date('Y').'/'.time().'-canceledsession.json';
        if (isset($_SESSION['orderid'])) {
            $filename = "../data/".date('Y').'/'.time().'-canceledsession-'.$_SESSION['orderid'].'.json';
        }
        @file_put_contents($filename, json_encode($_SESSION));
        header('Location: clear.php');
        die();
    }
}
$_SESSION['last_activity'] = time();
$_SESSION['warnings'] = [];

$_SESSION['angeliefert'] = true;

$handle_length = 8;
if (! isset($_SESSION['handle']) || !$_SESSION['handle']) {
    $random = base64_encode(md5(microtime()));
    $_SESSION['handle'] = substr(str_replace(array('+', '=', '/'), '', $random), 0, $handle_length);
    $_SESSION['date'] = date('Y-m-d H:i:s.v');
    $_SESSION['complete'] = false;
}


function showError()
{
    switch ($_REQUEST['form']) {
        case 'start':
                $redirect = 'index.php?error&num='.urlencode($number).'&lname='.urlencode($lname).'&fname='.urlencode($fname);
                break;
        case 'address':
                $redirect = 'address.php?error';
                break;
        case 'anlieferung':
                $redirect = 'anlieferung.php?error';
                break;
        case 'gitterbox':
            $redirect = 'gitterbox.php?error';
            break;
        case 'obstart':
            $redirect = 'obstart.php?error';
            break;
        case 'gebrauchte':
            $redirect = 'gebrauchte.php?error';
            break;
        case 'auftrag':
            $redirect = 'auftrag.php?error';
            break;
         case 'frischsaft':
            $redirect = 'frischsaft.php?error';
            break;
        case 'summary':
            $redirect = 'summary.php?error';
            break;
    }
    header('Location: '.$redirect);
    die();
}

function nextPage()
{
    if (!isset($_SESSION['address_done'])) {
        return "address.php";
    } elseif (!isset($_SESSION['notification_done'])) {
        return "notification.php";
    } elseif (!isset($_SESSION['angeliefert']) && $_SESSION['mode'] != 'local') {
        return "anlieferung.php";
    } elseif (!isset($_SESSION['gitterbox_done'])) {
        return "gitterbox.php";
    } elseif (!isset($_SESSION['obstart_done'])) {
        return "obstart.php";
    } elseif (!isset($_SESSION['gebrauchte_done'])) {
        return "gebrauchte.php";
    } elseif (!isset($_SESSION['auftrag_done'])) {
        return "auftrag.php";
    } elseif (!isset($_SESSION['frischsaft_done'])) {
        return "frischsaft.php";
    } else {
        return 'summary.php';
    }
}

$redirect = NULL;
if (isset($_REQUEST['form'])) {
    switch ($_REQUEST['form']) {
        case 'start':
            $lname = '';
            if (isset($_REQUEST['lname']) && trim($_REQUEST['lname']) != '') {
                $lname = namen_korrigieren($_REQUEST['lname']);
            }
            $fname = '';
            if (isset($_REQUEST['fname']) && trim($_REQUEST['fname']) != '') {
                $fname = namen_korrigieren($_REQUEST['fname']);
            }

            $number = '';
            if (isset($_REQUEST['phone']) && trim($_REQUEST['phone']) != '') {
                $number = trim($_REQUEST['phone']);
            }
            if (substr($number, 0, 1) != "0" && substr($number, 0, 3) != '+49') {
                $number = '07192'.$number;
            }

            $number = format_number_national($number);

            if (! $number || !$lname || !format_number_api($number)) {
                $redirect = 'index.php?error&num='.urlencode($number).'&lname='.urlencode($lname).'&fname='.urlencode($fname);
                break;
            }

            $_SESSION['lname'] = htmlspecialchars($lname);
            $_SESSION['fname'] = htmlspecialchars($fname);
            $_SESSION['phone'] = htmlspecialchars($number);
            if (isset($_REQUEST['save']) && $_REQUEST['save'] == 'yes' && $_SESSION['mode'] != 'local') {
                setcookie('LNAME', $lname, time() + 24*3600*500, "");
                setcookie('FNAME', $fname, time() + 24*3600*500, "");
                setcookie('NUMBER', $number, time() + 24*3600*500, "");
            }

            $redirect = 'address.php';
            break;

        case 'address':
            $fields = array("firma", "fname", "lname", "address", "zip", "city", "email");
            foreach ($fields as $f) {
                if (isset($_REQUEST[$f]) && trim($_REQUEST[$f]) != '') {
                    $_SESSION[$f] = trim(htmlspecialchars($_REQUEST[$f]));
                } else {
                    if (! isset($_SESSION[$f])) {
                        $_SESSION[$f] = '';
                    }
                }
            }
            if ($_SESSION['lname'] == '') {
                $redirect = 'address.php?error';
                break;
            }
            if ($_SESSION['fname'] != '') {
                $_SESSION['name'] = $_SESSION['lname'].', '.$_SESSION['fname'];
            }
            if (!isset($_SESSION['kundennr']) || !$_SESSION['kundennr']) {
                $_SESSION['kundennr'] = erstelle_kunde($_SESSION);
                $_SESSION['phonenumbers'] = [$_SESSION['phone']];
                $_SESSION['emailaddrs'] = [];
                if ($_SESSION['email'] != '') {
                    $_SESSION['emailaddrs'][] = $_SESSION['email'];
                }
                if (!$_SESSION['kundennr']) {
                    showError();
                    }
            } else {
                if (isset($_SESSION['email']) && $_SESSION['email']) {
                    // Not implemented
                    //update_kunde($_SESSION['kundennr'], ['email' => $_SESSION['email']]);
                }
            }
            $_SESSION['address_done'] = true;
            $redirect = nextPage();
            break;

        case 'notification':
            if (isset($_REQUEST['notification'])) {
                list($schema, $content) = explode(':', $_REQUEST['notification']);
                if ($schema == 'sms' or $schema == 'whatsapp') {
                    $content = format_number_api($content);
                }
                $_SESSION['notificationPreference'] = $schema.':'.$content;
                $_SESSION['notification_done'] = true;
            }
            $redirect = nextPage();
            break;


        case 'anlieferung':
            if (isset($_REQUEST['schonda'])) {
                $_SESSION['angeliefert'] = true;
                $redirect = 'gitterbox.php';
                break;
            }
            if (isset($_REQUEST['kommtnoch'])) {
                $_SESSION['angeliefert'] = false;
                $redirect = 'gitterbox_spaeter.php';
                break;
            }
            break;
        case 'gitterbox':
            if (isset($_REQUEST['lieferart'])) {
                $_SESSION['gitterbox_done'] = true;
                if ($_REQUEST['lieferart'] == 'gitterbox') {
                    $_SESSION['lieferart'] = 'gitterbox';
                    $_SESSION['gbcount'] = htmlspecialchars($_REQUEST['gbcount']);
                }
                if ($_REQUEST['lieferart'] == 'anhaenger') {
                    $_SESSION['lieferart'] = 'anhaenger';
                    $_SESSION['kennz'] = htmlspecialchars($_REQUEST['kennz']);
                    if ($_SESSION['angeliefert'] === false && ! $_SESSION['kennz']) {
                        $redirect = 'gitterbox_spaeter.php?error';
                        break;
                    }
                }
            }
            $redirect = nextPage();
            break;

         case 'obstart':
            $_SESSION['obstart'] = $_REQUEST['obstart'];
            $_SESSION['obstart_done'] = true;
            $redirect = nextPage();

         case 'gebrauchte':
            if (isset($_REQUEST['kartonsja'])) {
                $_SESSION['kartons'] = true;
            } 
            if (isset($_REQUEST['kartonsnein'])) {
                $_SESSION['kartons'] = false;
            }

            $_SESSION['gebrauchte_done'] = true;
            $redirect = nextPage();
            break;
         case 'auftrag':
            if (isset($_REQUEST['3er'])) {
                $_SESSION['neue'] = '3er';
            }
            if (isset($_REQUEST['5er'])) {
                $_SESSION['neue'] = '5er';
            }
            if (isset($_REQUEST['10er'])) {
                $_SESSION['neue'] = '10er';
            }
            if (isset($_REQUEST['submit']) && isset($_REQUEST['sonstiges']) && $_REQUEST['sonstiges'] != '') {
                $_SESSION['neue'] = 'sonstiges';
                $_SESSION['sonstiges'] = htmlspecialchars($_REQUEST['sonstiges']);
            } elseif (isset($_REQUEST['sonstiges'])) {
                $_SESSION['neue'] = 'sonstiges';
                $redirect = 'auftrag.php?sonstiges';
                break;
            }

            $_SESSION['auftrag_done'] = true;
            $redirect = nextPage();
            break;

         case 'frischsaft':
            if (isset($_REQUEST['frischsaftnein'])) {
                $_SESSION['frischsaft'] = 0;
            } elseif (isset($_REQUEST['frischsaft'])) {
                $_SESSION['frischsaft'] = htmlspecialchars($_REQUEST['frischsaft']);
            }
            $_SESSION['frischsaft_done'] = true;
            $redirect = nextPage();
            break;
        case 'summary':
            if (isset($_REQUEST['anmerkungen'])) {
                $_SESSION['anmerkungen'] = htmlspecialchars($_REQUEST['anmerkungen']);
            }

            $_SESSION['complete'] = true;
            $redirect = 'finish.php';
            break;

    }
}

/*
 * Um das Speichern in der API kümmern wir uns, wenn Kundendaten, Obstart und grundsätzliche Auftragsdaten feststehen
 */
if (isset($_SESSION['neue'])) {
    // Bevor dieses Datenfeld vorhanden ist, macht Speichern keinen Sinn
    $auftrag = [];
    /* Herunterladen bringt nichts, da wir einfach immer unsere bekannten Daten rein schieben. Parallelität ist nicht gewünscht
     * if (isset($auftrag['id'])) {
        // Auftrag ist schon in der API, aktuellen Stand herunter laden
        $auftrag = api_call('GET', 'orders/'.$auftrag['id']);
    }*/

    // customer
    if (isset($_SESSION['kundennr'])) {
        $auftrag['customer'] = $_SESSION['kundennr'];
        $auftrag['name'] = $_SESSION['name'];
        $auftrag['phone'] = $_SESSION['phone'];
        $auftrag['email'] = isset($_SESSION['email']) ? $_SESSION['email'] : null;
        $auftrag['notificationPreference'] = $_SESSION['notificationPreference'];
        $auftrag['fruitTypeName'] = $_SESSION['obstart'];
    }
    // containers
    if (isset($_SESSION['lieferart']) && $_SESSION['lieferart'] == 'gitterbox' && isset($_SESSION['gbcount']) && $_SESSION['gbcount'] > 0) {
        $auftrag['containers'] = array_fill(0, $_SESSION['gbcount'], [ "type" => "box", "weight" => 400 ]);
    }
    if (isset($_SESSION['lieferart']) && $_SESSION['lieferart'] == 'anhaenger') {
        if (!isset($_SESSION['kennz'])) {
            $_SESSION['kennz'] = null;
        }
        $auftrag['containers'] = [
            ["type" => "trailer",
            "weight" => 0,
            "label" => $_SESSION['kennz']]
        ];
    }
    // usedPackages
    if (isset($_SESSION['kartons'])) {
        $auftrag['haveUsed'] = (bool) $_SESSION['kartons'];
    }

    // plannedPackagings
    if (isset($_SESSION['neue'])) {
        $plan = [];
        if ($_SESSION['neue'] == 'sonstiges') {
            $auftrag['free'] = $_SESSION["sonstiges"];
        } else {
            $plan[] = [
                "packageType" => $_SESSION['neue'],
                "wish" => "rest"
            ];
        }
        if (isset($_SESSION['frischsaft']) && $_SESSION['frischsaft'] > 0) {
            $plan[] = [
                "packageType" => "frischsaft",
                "wish" => $_SESSION['frischsaft']
            ];
        }

        $auftrag['wishes'] = $plan;
        
    }


    // notes
    $auftrag['notes'] = '';
    if (isset($_SESSION['anmerkungen']) && $_SESSION['anmerkungen'] != '') {
        $auftrag['notes'] = $_SESSION['anmerkungen'] . (isset($_SESSION["sonstiges"]) ? "\n\n" . $_SESSION["sonstiges"] : '');
    }
    if ($_SESSION['mode'] != 'local') {
        $auftrag['notes'] .= "\nAuftrag wurde mit einem eigenen Gerät erstellt.";
    }
    if (!isset($_SESSION['complete']) || $_SESSION['complete'] == false) {
        $auftrag['notes'] .= "\nAuftrag unvollständig erfasst.";
    }

    // Auftrag lokal speichern
    $filename = "../data/".date('Y').'/'.time().'.json';
    if (isset($_SESSION['orderid'])) {
        $filename = "../data/".date('Y').'/'.time().'-'.$_SESSION['orderid'].'.json';
    }
    @file_put_contents($filename, json_encode($auftrag));
     if (isset($_SESSION['orderid']) && $_SESSION['orderid']) {
        // update
        $ret = api_call('PUT', 'anonymous/updateorder/'.$_SESSION['orderid'], $auftrag);
    } else {
        // neu
        $ret = api_call('POST', 'anonymous/neworder', $auftrag);
    }
    if ($ret['status_code'] >= 400) {
        foreach ($ret['data']['validation_errors'] as $item) {
            $_SESSION['warnings'][] = $item['key'].': '.$item['message'];
        }
        return showError();
    }
    $ret = $ret['data'];
    $_SESSION['orderid'] = $ret['uuid'];

    if (!isset($ret['id'])) {
        echo "Es gabe einen Fehler beim Abspeichern des Auftrags. Wir bitten dies zu entschuldigen und einen Papierauftrag auszufüllen.";
        file_put_contents("../error.log", 
            date("Y-m-d H:i:s") . ': '.json_encode($auftrag).
            print_r($ret, true).'\n', FILE_APPEND | LOCK_EX);
        die();
    }

    // Auftrag lokal speichern
    if (isset($_SESSION['orderid'])) {
        $filename = "../data/".date('Y').'/'.time().'-'.$_SESSION['orderid'].'.json';
    }
    @file_put_contents($filename, json_encode($auftrag));
    /*
    if ($ret['status'] == 'error') {
        echo 'Es gibt ein Problem beim Speichern des Auftrags. Bitte verwenden Sie diesmal einen Papier-Auftrag.';
        die();
    }
    */
}

header('Location: '.$redirect);