<?php
require_once('api.php');

function suche_kunde($name, $number) {
        global $content;
        if (! $number) {
            return NULL;
        }
        $ret = api_call('GET', 'customerContacts/search/'.format_number_api($number));
        if ($ret['status_code'] >= 400) {
            foreach ($ret['data']['validation_errors'] as $item) {
                $_SESSION['warning'][] = $item['message'];
            }
            return null;
        }
        $ret = $ret['data'];
        if (count($ret) > 0) {
            $name = strtolower($name);
            foreach ($ret as $item) {
                $cust = $item['customer'];
                if ($name == strtolower($cust['lastname']) ||
                    $name == strtolower($cust['firstname']) ||
                    $name == strtolower($cust['firstname'] .' '. $cust['lastname']) ||
                    $name == strtolower($cust['lastname'] .' '. $cust['firstname'])
                    ) {
                    return $cust;
                }
            }
        }
        return null;

        /*
        $kundenliste = json_decode(file_get_contents('../kunden.json'), TRUE);
        foreach ($kundenliste as $k) {
                foreach ($k['kontakt'] as $kon) {
                        if ($kon['wert'] == $number) {
                                return $k;
                        }
                }
        }
        */
}

function kunde_hat_email($customerno) {
    $ret = api_call('GET', 'customers/'.(int) $customerno);
    if ($ret['status_code'] >= 400) {
        // Fehler. Belästige den Kunden nicht damit
        return true;
    }
    $ret = $ret['data'];
    if (isset($ret['email']) && $ret['email']) {
        return true;
    }
    foreach ($ret['contacts'] as $c) {
        if (isset($c['email']) && $c['email']) {
            return true;
        }
    }
    return false;
}


function update_kunde($customerno, $daten) {
    $ret = api_call('GET', 'customers/'.(int) $customerno);
    if ($ret['status_code'] >= 400) {
        // Fehler. Erstelle Neukunde
        erstelle_kunde($daten);
        return;
    }
    $customer = $ret['data'];

    foreach ($daten as $field => $value) {
        if ($value) {
            $customer[$field] = $value;
        }
    }

    $filename = '../data/'.date('Y').'/'.time().'-kunde-'.$customerno.'.json';
    @file_put_contents($filename, json_encode($customer));
    $ret = api_call('PUT', 'customers/'.(int) $customerno, $customer);
    if ($ret['status_code'] >= 400) {
        foreach ($ret['data']['validation_errors'] as $item) {
            $_SESSION['warnings'][] = $item['key'].': '.$item['message'];
        }
        return null;
    }
    $ret = $ret['data'];
    if (isset($ret['id'])) {
        return $ret['id'];
    } else {
        return null;
    }
}


function erstelle_kunde($daten) {
    $json = [
        "firstname" => $daten['fname'] ?: null,
        "lastname" => $daten['lname'],
        "phone" => format_number_api($daten['phone']),
        "email" => $daten['email'] ?: null,
        "street" => $daten['address'] ?: null,
        "zip" => $daten['zip'] ?: null,
        "city" => $daten['city'] ?: null,
        "contacts" => []];
    $filename = '../data/'.date('Y').'/'.time().'-neukunde.json';
    @file_put_contents($filename, json_encode($json));
    $ret = api_call('POST', 'customers', $json);
    if ($ret['status_code'] >= 400) {
        foreach ($ret['data']['validation_errors'] as $item) {
            $_SESSION['warnings'][] = $item['key'].': '.$item['message'];
        }
        return null;
    }
    $ret = $ret['data'];
    if (isset($ret['id'])) {
        return $ret['id'];
    } else {
        return null;
    }
}

require_once('vendor/autoload.php');

function format_number_national($number) {
    $phoneNumberUtil = \libphonenumber\PhoneNumberUtil::getInstance();
    try {
        $phoneNumber = $phoneNumberUtil->parse($number, 'DE');
    } catch (Exception $e) {
        return NULL;
    }
    if ($phoneNumberUtil->isValidNumber($phoneNumber)) {
        return $phoneNumberUtil->format($phoneNumber, \libphonenumber\PhoneNumberFormat::NATIONAL);
    }
    return NULL;
}

function format_number($number) {
    $phoneNumberUtil = \libphonenumber\PhoneNumberUtil::getInstance();
    try {
        $phoneNumber = $phoneNumberUtil->parse($number, 'DE');
    } catch (Exception $e) {
        return NULL;
    }
    if ($phoneNumberUtil->isValidNumber($phoneNumber)) {
        return $phoneNumberUtil->format($phoneNumber, \libphonenumber\PhoneNumberFormat::INTERNATIONAL);
    }
    return NULL;
}