<?php

/**
 * @return string
 */
function settings_title()
{
    return _('Settings');
}

/**
 * Change user main attributes (name, dates, etc.)
 *
 * @param array $user_source The user
 * @param bool  $enable_tshirt_size
 * @param array $tshirt_sizes
 * @return array
 */
function user_settings_main($user_source, $enable_tshirt_size, $tshirt_sizes)
{
    $valid = true;

    if (isset($_REQUEST['mail'])) {
        $result = User_validate_mail($_REQUEST['mail']);
        $user_source['email'] = $result->getValue();
        if (!$result->isValid()) {
            $valid = false;
            error(_('E-mail address is not correct.'));
        }
    } else {
        $valid = false;
        error(_('Please enter your e-mail.'));
    }

    $user_source['email_shiftinfo'] = isset($_REQUEST['email_shiftinfo']);
    $user_source['email_by_human_allowed'] = isset($_REQUEST['email_by_human_allowed']);

    if (isset($_REQUEST['jabber'])) {
        $result = User_validate_jabber($_REQUEST['jabber']);
        $user_source['jabber'] = $result->getValue();
        if (!$result->isValid()) {
            $valid = false;
            error(_('Please check your jabber account information.'));
        }
    }

    if (isset($_REQUEST['tshirt_size']) && isset($tshirt_sizes[$_REQUEST['tshirt_size']])) {
        $user_source['Size'] = $_REQUEST['tshirt_size'];
    } elseif ($enable_tshirt_size) {
        $valid = false;
    }

    if (isset($_REQUEST['planned_arrival_date'])) {
        $tmp = parse_date('Y-m-d H:i', $_REQUEST['planned_arrival_date'] . ' 00:00');
        $result = User_validate_planned_arrival_date($tmp);
        $user_source['planned_arrival_date'] = $result->getValue();
        if (!$result->isValid()) {
            $valid = false;
            error(_('Please enter your planned date of arrival. It should be after the buildup start date and before teardown end date.'));
        }
    }

    if (isset($_REQUEST['planned_departure_date'])) {
        $tmp = parse_date('Y-m-d H:i', $_REQUEST['planned_departure_date'] . ' 00:00');
        $result = User_validate_planned_departure_date($user_source['planned_arrival_date'], $tmp);
        $user_source['planned_departure_date'] = $result->getValue();
        if (!$result->isValid()) {
            $valid = false;
            error(_('Please enter your planned date of departure. It should be after your planned arrival date and after buildup start date and before teardown end date.'));
        }
    }

    // Trivia
    $user_source['Name'] = strip_request_item('lastname', $user_source['Name']);
    $user_source['Vorname'] = strip_request_item('prename', $user_source['Vorname']);
    $user_source['Alter'] = strip_request_item('age', $user_source['Alter']);
    $user_source['Telefon'] = strip_request_item('tel', $user_source['Telefon']);
    $user_source['DECT'] = strip_request_item('dect', $user_source['DECT']);
    $user_source['Handy'] = strip_request_item('mobile', $user_source['Handy']);
    $user_source['Hometown'] = strip_request_item('hometown', $user_source['Hometown']);

    if ($valid) {
        User_update($user_source);
        success(_('Settings saved.'));
        redirect(page_link_to('user_settings'));
    }

    return $user_source;
}

/**
 * Change user password.
 *
 * @param array $user_source The user
 */
function user_settings_password($user_source)
{
    global $min_password_length;
    if (
        !isset($_REQUEST['password'])
        || !verify_password($_REQUEST['password'], $user_source['Passwort'], $user_source['UID'])
    ) {
        error(_('-> not OK. Please try again.'));
    } elseif (strlen($_REQUEST['new_password']) < $min_password_length) {
        error(_('Your password is to short (please use at least 6 characters).'));
    } elseif ($_REQUEST['new_password'] != $_REQUEST['new_password2']) {
        error(_('Your passwords don\'t match.'));
    } elseif (set_password($user_source['UID'], $_REQUEST['new_password'])) {
        success(_('Password saved.'));
    } else {
        error(_('Failed setting password.'));
    }
    redirect(page_link_to('user_settings'));
}

/**
 * Change user theme
 *
 * @param array $user_source The user
 * @param array $themes      List of available themes
 * @return mixed
 */
function user_settings_theme($user_source, $themes)
{
    $valid = true;

    if (isset($_REQUEST['theme']) && isset($themes[$_REQUEST['theme']])) {
        $user_source['color'] = $_REQUEST['theme'];
    } else {
        $valid = false;
    }

    if ($valid) {
        sql_query("
            UPDATE `User`
            SET `color`='" . sql_escape($user_source['color']) . "'
            WHERE `UID`='" . sql_escape($user_source['UID']) . "'
        ");

        success(_('Theme changed.'));
        redirect(page_link_to('user_settings'));
    }

    return $user_source;
}

/**
 * Change use locale
 *
 * @param array $user_source The user
 * @param array $locales     List of available locales
 * @return array
 */
function user_settings_locale($user_source, $locales)
{
    $valid = true;

    if (isset($_REQUEST['language']) && isset($locales[$_REQUEST['language']])) {
        $user_source['Sprache'] = $_REQUEST['language'];
    } else {
        $valid = false;
    }

    if ($valid) {
        sql_query("
            UPDATE `User`
            SET `Sprache`='" . sql_escape($user_source['Sprache']) . "'
            WHERE `UID`='" . sql_escape($user_source['UID']) . "'
        ");
        $_SESSION['locale'] = $user_source['Sprache'];

        success('Language changed.');
        redirect(page_link_to('user_settings'));
    }

    return $user_source;
}

/**
 * Main user settings page/controller
 *
 * @return string
 */
function user_settings()
{
    global $enable_tshirt_size, $tshirt_sizes, $themes, $locales;
    global $user;

    $buildup_start_date = null;
    $teardown_end_date = null;
    $event_config = EventConfig();
    if ($event_config != null) {
        if (isset($event_config['buildup_start_date'])) {
            $buildup_start_date = $event_config['buildup_start_date'];
        }
        if (isset($event_config['teardown_end_date'])) {
            $teardown_end_date = $event_config['teardown_end_date'];
        }
    }

    $user_source = $user;

    if (isset($_REQUEST['submit'])) {
        $user_source = user_settings_main($user_source, $enable_tshirt_size, $tshirt_sizes);
    } elseif (isset($_REQUEST['submit_password'])) {
        user_settings_password($user_source);
    } elseif (isset($_REQUEST['submit_theme'])) {
        $user_source = user_settings_theme($user_source, $themes);
    } elseif (isset($_REQUEST['submit_language'])) {
        $user_source = user_settings_locale($user_source, $locales);
    }

    return User_settings_view(
        $user_source,
        $locales,
        $themes,
        $buildup_start_date,
        $teardown_end_date,
        $enable_tshirt_size,
        $tshirt_sizes
    );
}