<?php

function login_title()
{
    return _("Login");
}

function register_title()
{
    return _("Register");
}

function logout_title()
{
    return _("Logout");
}

// Engel registrieren
function guest_register()
{
    global $tshirt_sizes, $enable_tshirt_size, $default_theme, $user, $min_password_length;
  
    $event_config = EventConfig();
  
    $msg = "";
    $nick = "";
    $lastname = "";
    $prename = "";
    $age = "";
    $tel = "";
    $dect = "";
    $mobile = "";
    $mail = "";
    $email_shiftinfo = false;
    $email_by_human_allowed = false;
    $jabber = "";
    $hometown = "";
    $comment = "";
    $tshirt_size = '';
    $password_hash = "";
    $selected_angel_types = [];
    $planned_arrival_date = null;
  
    $angel_types_source = AngelTypes();
    $angel_types = [];
    foreach ($angel_types_source as $angel_type) {
        $angel_types[$angel_type['id']] = $angel_type['name'] . ($angel_type['restricted'] ? " (restricted)" : "");
        if (! $angel_type['restricted']) {
            $selected_angel_types[] = $angel_type['id'];
        }
    }
  
    if (isset($_REQUEST['submit'])) {
        $valid = true;
    
        if (isset($_REQUEST['nick']) && strlen(User_validate_Nick($_REQUEST['nick'])) > 1) {
            $nick = User_validate_Nick($_REQUEST['nick']);
            if (sql_num_query("SELECT * FROM `User` WHERE `Nick`='" . sql_escape($nick) . "' LIMIT 1") > 0) {
                $valid = false;
                $msg .= error(sprintf(_("Your nick &quot;%s&quot; already exists."), $nick), true);
            }
        } else {
            $valid = false;
            $msg .= error(sprintf(_("Your nick &quot;%s&quot; is too short (min. 2 characters)."), User_validate_Nick($_REQUEST['nick'])), true);
        }
    
        if (isset($_REQUEST['mail']) && strlen(strip_request_item('mail')) > 0) {
            $mail = strip_request_item('mail');
            if (! check_email($mail)) {
                $valid = false;
                $msg .= error(_("E-mail address is not correct."), true);
            }
        } else {
            $valid = false;
            $msg .= error(_("Please enter your e-mail."), true);
        }
    
        if (isset($_REQUEST['email_shiftinfo'])) {
            $email_shiftinfo = true;
        }
    
        if (isset($_REQUEST['email_by_human_allowed'])) {
            $email_by_human_allowed = true;
        }
    
        if (isset($_REQUEST['jabber']) && strlen(strip_request_item('jabber')) > 0) {
            $jabber = strip_request_item('jabber');
            if (! check_email($jabber)) {
                $valid = false;
                $msg .= error(_("Please check your jabber account information."), true);
            }
        }
    
        if ($enable_tshirt_size) {
            if (isset($_REQUEST['tshirt_size']) && isset($tshirt_sizes[$_REQUEST['tshirt_size']]) && $_REQUEST['tshirt_size'] != '') {
                $tshirt_size = $_REQUEST['tshirt_size'];
            } else {
                $valid = false;
                $msg .= error(_("Please select your shirt size."), true);
            }
        }
    
        if (isset($_REQUEST['password']) && strlen($_REQUEST['password']) >= $min_password_length) {
            if ($_REQUEST['password'] != $_REQUEST['password2']) {
                $valid = false;
                $msg .= error(_("Your passwords don't match."), true);
            }
        } else {
            $valid = false;
            $msg .= error(sprintf(_("Your password is too short (please use at least %s characters)."), $min_password_length), true);
        }
    
        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);
            $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."));
            }
        }
    
        $selected_angel_types = [];
        foreach (array_keys($angel_types) as $angel_type_id) {
            if (isset($_REQUEST['angel_types_' . $angel_type_id])) {
                $selected_angel_types[] = $angel_type_id;
            }
        }
    
    // Trivia
    if (isset($_REQUEST['lastname'])) {
        $lastname = strip_request_item('lastname');
    }
        if (isset($_REQUEST['prename'])) {
            $prename = strip_request_item('prename');
        }
        if (isset($_REQUEST['age']) && preg_match("/^[0-9]{0,4}$/", $_REQUEST['age'])) {
            $age = strip_request_item('age');
        }
        if (isset($_REQUEST['tel'])) {
            $tel = strip_request_item('tel');
        }
        if (isset($_REQUEST['dect'])) {
            $dect = strip_request_item('dect');
        }
        if (isset($_REQUEST['mobile'])) {
            $mobile = strip_request_item('mobile');
        }
        if (isset($_REQUEST['hometown'])) {
            $hometown = strip_request_item('hometown');
        }
        if (isset($_REQUEST['comment'])) {
            $comment = strip_request_item_nl('comment');
        }
    
        if ($valid) {
            sql_query("
          INSERT INTO `User` SET 
          `color`='" . sql_escape($default_theme) . "', 
          `Nick`='" . sql_escape($nick) . "', 
          `Vorname`='" . sql_escape($prename) . "', 
          `Name`='" . sql_escape($lastname) . "', 
          `Alter`='" . sql_escape($age) . "', 
          `Telefon`='" . sql_escape($tel) . "', 
          `DECT`='" . sql_escape($dect) . "', 
          `Handy`='" . sql_escape($mobile) . "', 
          `email`='" . sql_escape($mail) . "', 
          `email_shiftinfo`=" . sql_bool($email_shiftinfo) . ", 
          `email_by_human_allowed`=" . sql_bool($email_by_human_allowed) . ",
          `jabber`='" . sql_escape($jabber) . "',
          `Size`='" . sql_escape($tshirt_size) . "', 
          `Passwort`='" . sql_escape($password_hash) . "', 
          `kommentar`='" . sql_escape($comment) . "', 
          `Hometown`='" . sql_escape($hometown) . "', 
          `CreateDate`=NOW(), 
          `Sprache`='" . sql_escape($_SESSION["locale"]) . "',
          `arrival_date`=NULL,
          `planned_arrival_date`='" . sql_escape($planned_arrival_date) . "'");
      
      // Assign user-group and set password
      $user_id = sql_id();
            sql_query("INSERT INTO `UserGroups` SET `uid`='" . sql_escape($user_id) . "', `group_id`=-2");
            set_password($user_id, $_REQUEST['password']);
      
      // Assign angel-types
      $user_angel_types_info = [];
            foreach ($selected_angel_types as $selected_angel_type_id) {
                sql_query("INSERT INTO `UserAngelTypes` SET `user_id`='" . sql_escape($user_id) . "', `angeltype_id`='" . sql_escape($selected_angel_type_id) . "'");
                $user_angel_types_info[] = $angel_types[$selected_angel_type_id];
            }
      
            engelsystem_log("User " . User_Nick_render(User($user_id)) . " signed up as: " . join(", ", $user_angel_types_info));
            success(_("Angel registration successful!"));
      
      // User is already logged in - that means a supporter has registered an angel. Return to register page.
      if (isset($user)) {
          redirect(page_link_to('register'));
      }
      
      // If a welcome message is present, display registration success page.
      if ($event_config != null && $event_config['event_welcome_msg'] != null) {
          return User_registration_success_view($event_config['event_welcome_msg']);
      }
      
            redirect('?');
        }
    }
  
    $buildup_start_date = time();
    $teardown_end_date = null;
    if ($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'];
        }
    }
  
    return page_with_title(register_title(), [
      _("By completing this form you're registering as a Chaos-Angel. This script will create you an account in the angel task scheduler."),
      $msg,
      msg(),
      form([
          div('row', [
              div('col-md-6', [
                  div('row', [
                      div('col-sm-4', [
                          form_text('nick', _("Nick") . ' ' . entry_required(), $nick)
                      ]),
                      div('col-sm-8', [
                          form_email('mail', _("E-Mail") . ' ' . entry_required(), $mail),
                          form_checkbox('email_shiftinfo', _("The engelsystem is allowed to send me an email (e.g. when my shifts change)"), $email_shiftinfo),
                          form_checkbox('email_by_human_allowed', _("Humans are allowed to send me an email (e.g. for ticket vouchers)"), $email_by_human_allowed)
                      ])
                  ]),
                  div('row', [
                      div('col-sm-6', [
                          form_date('planned_arrival_date', _("Planned date of arrival") . ' ' . entry_required(), $planned_arrival_date, $buildup_start_date, $teardown_end_date)
                      ]),
                      div('col-sm-6', [
                          $enable_tshirt_size ? form_select('tshirt_size', _("Shirt size") . ' ' . entry_required(), $tshirt_sizes, $tshirt_size) : ''
                      ])
                  ]),
                  div('row', [
                      div('col-sm-6', [
                          form_password('password', _("Password") . ' ' . entry_required())
                      ]),
                      div('col-sm-6', [
                          form_password('password2', _("Confirm password") . ' ' . entry_required())
                      ])
                  ]),
                  form_checkboxes('angel_types', _("What do you want to do?") . sprintf(" (<a href=\"%s\">%s</a>)", page_link_to('angeltypes') . '&action=about', _("Description of job types")), $angel_types, $selected_angel_types),
                  form_info("", _("Restricted angel types need will be confirmed later by a supporter. You can change your selection in the options section."))
              ]),
              div('col-md-6', [
                  div('row', [
                      div('col-sm-4', [
                          form_text('dect', _("DECT"), $dect)
                      ]),
                      div('col-sm-4', [
                          form_text('mobile', _("Mobile"), $mobile)
                      ]),
                      div('col-sm-4', [
                          form_text('tel', _("Phone"), $tel)
                      ])
                  ]),
                  form_text('jabber', _("Jabber"), $jabber),
                  div('row', [
                      div('col-sm-6', [
                          form_text('prename', _("First name"), $prename)
                      ]),
                      div('col-sm-6', [
                          form_text('lastname', _("Last name"), $lastname)
                      ])
                  ]),
                  div('row', [
                      div('col-sm-3', [
                          form_text('age', _("Age"), $age)
                      ]),
                      div('col-sm-9', [
                          form_text('hometown', _("Hometown"), $hometown)
                      ])
                  ]),
                  form_info(entry_required() . ' = ' . _("Entry required!"))
              ])
          ]),
          // form_textarea('comment', _("Did you help at former CCC events and which tasks have you performed then?"), $comment),
          form_submit('submit', _("Register"))
      ])
  ]);
}

function entry_required()
{
    return '<span class="text-info glyphicon glyphicon-warning-sign"></span>';
}

function guest_logout()
{
    session_destroy();
    redirect(page_link_to("start"));
}

function guest_login()
{
    $nick = "";
  
    unset($_SESSION['uid']);
    $valid = true;
  
    if (isset($_REQUEST['submit'])) {
        if (isset($_REQUEST['nick']) && strlen(User_validate_Nick($_REQUEST['nick'])) > 0) {
            $nick = User_validate_Nick($_REQUEST['nick']);
            $login_user = sql_select("SELECT * FROM `User` WHERE `Nick`='" . sql_escape($nick) . "'");
            if (count($login_user) > 0) {
                $login_user = $login_user[0];
                if (isset($_REQUEST['password'])) {
                    if (! verify_password($_REQUEST['password'], $login_user['Passwort'], $login_user['UID'])) {
                        $valid = false;
                        error(_("Your password is incorrect.  Please try it again."));
                    }
                } else {
                    $valid = false;
                    error(_("Please enter a password."));
                }
            } else {
                $valid = false;
                error(_("No user was found with that Nickname. Please try again. If you are still having problems, ask a Dispatcher."));
            }
        } else {
            $valid = false;
            error(_("Please enter a nickname."));
        }
    
        if ($valid) {
            $_SESSION['uid'] = $login_user['UID'];
            $_SESSION['locale'] = $login_user['Sprache'];
      
            redirect(page_link_to('news'));
        }
    }
  
    $event_config = EventConfig();
  
    return page([
      div('col-md-12', [
          div('row', [
              EventConfig_countdown_page($event_config)
          ]),
          div('row', [
              div('col-sm-6 col-sm-offset-3 col-md-4 col-md-offset-4', [
                  div('panel panel-primary first', [
                      div('panel-heading', [
                          '<span class="icon-icon_angel"></span> ' . _("Login")
                      ]),
                      div('panel-body', [
                          msg(),
                          form([
                              form_text_placeholder('nick', _("Nick"), $nick),
                              form_password_placeholder('password', _("Password")),
                              form_submit('submit', _("Login")),
                              ! $valid ? buttons([
                                  button(page_link_to('user_password_recovery'), _("I forgot my password"))
                              ]) : ''
                          ])
                      ]),
                      div('panel-footer', [
                          glyph('info-sign') . _("Please note: You have to activate cookies!")
                      ])
                  ])
              ])
          ]),
          div('row', [
              div('col-sm-6 text-center', [
                  heading(register_title(), 2),
                  get_register_hint()
              ]),
              div('col-sm-6 text-center', [
                  heading(_("What can I do?"), 2),
                  '<p>' . _("Please read about the jobs you can do to help us.") . '</p>',
                  buttons([
                      button(page_link_to('angeltypes') . '&action=about', _("Teams/Job description") . ' &raquo;')
                  ])
              ])
          ])
      ])
  ]);
}

function get_register_hint()
{
    global $privileges;
  
    if (in_array('register', $privileges)) {
        return join('', [
        '<p>' . _("Please sign up, if you want to help us!") . '</p>',
        buttons([
            button(page_link_to('register'), register_title() . ' &raquo;')
        ])
    ]);
    }
  
  //FIXME: return error(_("Registration is disabled."), true);
  return error("Registration is <a href='https://engelsystem.de/33c3/overwhelmed.html'>disabled</a>.", true);
}