rewrite controller for creating shift entries

8 files changed, 428 insertions, 312 deletions

diff --git a/includes/controller/shift_entries_controller.php b/includes/controller/shift_entries_controller.php
index e9590321..a0125ff4 100644
--- a/includes/controller/shift_entries_controller.php
+++ b/includes/controller/shift_entries_controller.php
@@ -1,248 +1,284 @@
 <?php
+use Engelsystem\ShiftSignupState;
 
-use Engelsystem\Database\DB;
+/**
+ * Route shift entry actions.
+ */
+function shift_entries_controller()
+{
+    global $user;
+    
+    $action = strip_request_item('action');
+    if ($action == null) {
+        redirect(user_link($user));
+    }
+    
+    switch ($action) {
+        case 'create':
+            return shift_entry_create_controller();
+        case 'edit':
+            return shift_entry_edit_controller();
+        case 'delete':
+            return shift_entry_delete_controller();
+    }
+}
 
 /**
  * Sign up for a shift.
- *
- * @return string
  */
-function shift_entry_add_controller()
+function shift_entry_create_controller()
 {
     global $privileges, $user;
-
     $request = request();
-    $shift_id = 0;
-    if ($request->has('shift_id') && preg_match('/^\d+$/', $request->input('shift_id'))) {
-        $shift_id = $request->input('shift_id');
-    } else {
-        redirect(page_link_to('user_shifts'));
-    }
-
-    // Locations laden
-    $rooms = Rooms();
-    $room_array = [];
-    foreach ($rooms as $room) {
-        $room_array[$room['RID']] = $room['Name'];
+    
+    if (User_is_freeloader($user)) {
+        redirect(page_link_to('user_myshifts'));
     }
-
-    $shift = Shift($shift_id);
+    
+    $shift = Shift($request->input('shift_id'));
     if ($shift == null) {
-        redirect(page_link_to('user_shifts'));
+        redirect(user_link($user));
     }
-    $shift['Name'] = $room_array[$shift['RID']];
-
-    $type_id = null;
-    if ($request->has('type_id') && preg_match('/^\d+$/', $request->input('type_id'))) {
-        $type_id = $request->input('type_id');
+    
+    $angeltype = AngelType($request->input('angeltype_id'));
+    
+    if (in_array('user_shifts_admin', $privileges)) {
+        return shift_entry_create_controller_admin($shift, $angeltype);
     }
-
-    if (in_array('user_shifts_admin', $privileges) || in_array('shiftentry_edit_angeltype_supporter', $privileges)) {
-        if($type_id == null) {
-            // If no angeltype id is given, then select first existing angeltype.
-            $needed_angeltypes = NeededAngelTypes_by_shift($shift_id);
-            if(count($needed_angeltypes) > 0) {
-                $type_id = $needed_angeltypes[0]['id'];
-            }
-        }
-        $type = AngelType($type_id);
-    } else {
-        // TODO: Move queries to model
-        $type = DB::selectOne('
-            SELECT *
-            FROM `UserAngelTypes`
-            JOIN `AngelTypes` ON (`UserAngelTypes`.`angeltype_id` = `AngelTypes`.`id`)
-            WHERE `AngelTypes`.`id` = ?
-            AND (
-                `AngelTypes`.`restricted` = 0
-                OR (
-                    `UserAngelTypes`.`user_id` = ?
-                    AND NOT `UserAngelTypes`.`confirm_user_id` IS NULL
-                )
-            )
-        ', [$type_id, $user['UID']]);
+    
+    if ($angeltype == null) {
+        redirect(user_link($user));
     }
-
-    if (empty($type)) {
-        redirect(page_link_to('user_shifts'));
+    
+    if (User_is_AngelType_supporter($user, $angeltype)) {
+        return shift_entry_create_controller_supporter($shift, $angeltype);
     }
+    
+    return shift_entry_create_controller_user($shift, $angeltype);
+}
 
-    if (
-        $request->has('user_id')
-        && preg_match('/^\d+$/', $request->input('user_id'))
-        && (
-            in_array('user_shifts_admin', $privileges)
-            || in_array('shiftentry_edit_angeltype_supporter', $privileges)
-        )
-    ) {
-        $user_id = $request->input('user_id');
-    } else {
-        $user_id = $user['UID'];
+/**
+ * Sign up for a shift.
+ * Case: Admin
+ *
+ * @param array $shift            
+ * @param array $angeltype            
+ */
+function shift_entry_create_controller_admin($shift, $angeltype)
+{
+    global $user;
+    $request = request();
+    
+    $signup_user = $user;
+    if ($request->has('user_id')) {
+        $signup_user = User($request->input('user_id'));
     }
-
-    $needed_angeltype = NeededAngeltype_by_Shift_and_Angeltype($shift, $type);
-    $shift_entries = ShiftEntries_by_shift_and_angeltype($shift['SID'], $type['id']);
-
-    $shift_signup_allowed = Shift_signup_allowed(
-        User($user_id),
-        $shift,
-        $type,
-        null,
-        null,
-        $needed_angeltype,
-        $shift_entries
-    );
-    if (!$shift_signup_allowed->isSignupAllowed()) {
-        error(_('You are not allowed to sign up for this shift. Maybe shift is full or already running.'));
+    if($signup_user == null) {
         redirect(shift_link($shift));
     }
-
-    if ($request->has('submit')) {
-        $selected_type_id = $type_id;
-        if (in_array('user_shifts_admin', $privileges) || in_array('shiftentry_edit_angeltype_supporter',
-                $privileges)
-        ) {
-
-            if (count(DB::select('SELECT `UID` FROM `User` WHERE `UID`=? LIMIT 1', [$user_id])) == 0) {
-                redirect(page_link_to('user_shifts'));
-            }
-
-            if (
-                $request->has('angeltype_id')
-                && test_request_int('angeltype_id')
-                && count(DB::select(
-                    'SELECT `id` FROM `AngelTypes` WHERE `id`=? LIMIT 1',
-                    [$request->input('angeltype_id')]
-                )) > 0
-            ) {
-                $selected_type_id = $request->input('angeltype_id');
-            }
+    
+    $angeltypes = AngelTypes();
+    if($request->has('angeltype_id')) {
+        $angeltype = AngelType($request->input('angeltype_id'));
+    }
+    if($angeltype == null) {
+        if(count($angeltypes) == 0) {
+            redirect(shift_link($shift));
         }
+        $angeltype = $angeltypes[0];
+    }
+    
+    if ($request->has('submit')) {
+        ShiftEntry_create([
+            'SID' => $shift['SID'],
+            'TID' => $angeltype['id'],
+            'UID' => $signup_user['UID'],
+            'Comment' => '',
+            'freeloaded' => false,
+            'freeload_comment' => ''
+        ]);
+        
+        success(sprintf(_('%s has been subscribed to the shift.'), User_Nick_render($signup_user)));
+        redirect(shift_link($shift));
+    }
+    
+    $users = Users();
+    $users_select = [];
+    foreach ($users as $u) {
+        $users_select[$u['UID']] = $u['Nick'];
+    }
+    
+    $angeltypes_select = [];
+    foreach($angeltypes as $a) {
+        $angeltypes_select[$a['id']] = $a['name'];
+    }
+    
+    $room = Room($shift['RID']);
+    return [
+        ShiftEntry_create_title(),
+        ShiftEntry_create_view_admin($shift, $room, $angeltype, $angeltypes_select, $signup_user, $users_select)
+    ];
+}
 
-        if (count(DB::select(
-            'SELECT `id` FROM `ShiftEntry` WHERE `SID`= ? AND `UID` = ?',
-            [$shift['SID'], $user_id]))
-        ) {
-            return error(_('This angel does already have an entry for this shift.'), true);
+/**
+ * Sign up for a shift.
+ * Case: Supporter
+ *
+ * @param array $shift            
+ * @param array $angeltype            
+ */
+function shift_entry_create_controller_supporter($shift, $angeltype)
+{
+    global $user;
+    $request = request();
+    
+    $signup_user = $user;
+    if ($request->has('user_id')) {
+        $signup_user = User($request->input('user_id'));
+    }
+    if (! UserAngelType_exists($signup_user, $angeltype)) {
+        error(_('User is not in angeltype.'));
+        redirect(shift_link($shift));
+    }
+    
+    $needed_angeltype = NeededAngeltype_by_Shift_and_Angeltype($shift, $angeltype);
+    $shift_entries = ShiftEntries_by_shift_and_angeltype($shift['SID'], $angeltype['id']);
+    $shift_signup_state = Shift_signup_allowed($signup_user, $shift, $angeltype, null, null, $needed_angeltype, $shift_entries);
+    if (! $shift_signup_state->isSignupAllowed()) {
+        if ($shift_signup_state->getState() == ShiftSignupState::OCCUPIED) {
+            error(_('This shift is already occupied.'));
         }
+        redirect(shift_link($shift));
+    }
+    
+    if ($request->has('submit')) {
+        ShiftEntry_create([
+            'SID' => $shift['SID'],
+            'TID' => $angeltype['id'],
+            'UID' => $signup_user['UID'],
+            'Comment' => '',
+            'freeloaded' => false,
+            'freeload_comment' => ''
+        ]);
+        
+        success(sprintf(_('%s has been subscribed to the shift.'), User_Nick_render($signup_user)));
+        redirect(shift_link($shift));
+    }
+    
+    $users = Users_by_angeltype($angeltype);
+    $users_select = [];
+    foreach ($users as $u) {
+        $users_select[$u['UID']] = $u['Nick'];
+    }
+    
+    $room = Room($shift['RID']);
+    return [
+        ShiftEntry_create_title(),
+        ShiftEntry_create_view_supporter($shift, $room, $angeltype, $signup_user, $users_select)
+    ];
+}
 
-        $freeloaded = isset($shift['freeloaded']) ? $shift['freeloaded'] : false;
-        $freeload_comment = isset($shift['freeload_comment']) ? $shift['freeload_comment'] : '';
-        if (in_array('user_shifts_admin', $privileges)) {
-            $freeloaded = $request->has('freeloaded');
-            $freeload_comment = strip_request_item_nl('freeload_comment');
+/**
+ * Sign up for a shift.
+ * Case: User
+ *
+ * @param array $shift            
+ * @param array $angeltype            
+ */
+function shift_entry_create_controller_user($shift, $angeltype)
+{
+    global $user;
+    $request = request();
+    
+    $signup_user = $user;
+    $needed_angeltype = NeededAngeltype_by_Shift_and_Angeltype($shift, $angeltype);
+    $shift_entries = ShiftEntries_by_shift_and_angeltype($shift['SID'], $angeltype['id']);
+    
+    $shift_signup_state = Shift_signup_allowed($signup_user, $shift, $angeltype, null, null, $needed_angeltype, $shift_entries);
+    
+    if (! $shift_signup_state->isSignupAllowed()) {
+        if ($shift_signup_state->getState() == ShiftSignupState::ANGELTYPE) {
+            error(_('You need be accepted member of the angeltype.'));
+        } elseif ($shift_signup_state->getState() == ShiftSignupState::COLLIDES) {
+            error(_('This shift collides with one of your shifts.'));
+        } elseif ($shift_signup_state->getState() == ShiftSignupState::OCCUPIED) {
+            error(_('This shift is already occupied.'));
+        } elseif ($shift_signup_state->getState() == ShiftSignupState::SHIFT_ENDED) {
+            error(_('This shift ended already.'));
+        } elseif ($shift_signup_state->getState() == ShiftSignupState::SIGNED_UP) {
+            error(_('You are signed up for this shift.'));
         }
-
+        redirect(shift_link($shift));
+    }
+    
+    $comment = '';
+    if ($request->has('submit')) {
         $comment = strip_request_item_nl('comment');
         ShiftEntry_create([
-            'SID'              => $shift_id,
-            'TID'              => $selected_type_id,
-            'UID'              => $user_id,
-            'Comment'          => $comment,
-            'freeloaded'       => $freeloaded,
-            'freeload_comment' => $freeload_comment
+            'SID' => $shift['SID'],
+            'TID' => $angeltype['id'],
+            'UID' => $signup_user['UID'],
+            'Comment' => $comment,
+            'freeloaded' => false,
+            'freeload_comment' => ''
         ]);
-
-        if (
-            $type['restricted'] == 0
-            && count(DB::select('
-              SELECT `UserAngelTypes`.`id` FROM `UserAngelTypes`
-              INNER JOIN `AngelTypes` ON `AngelTypes`.`id` = `UserAngelTypes`.`angeltype_id`
-              WHERE `angeltype_id` = ?
-              AND `user_id` = ?
-            ', [$selected_type_id, $user_id])) == 0
-        ) {
-            DB::insert(
-                'INSERT INTO `UserAngelTypes` (`user_id`, `angeltype_id`) VALUES (?, ?)',
-                [$user_id, $selected_type_id]
-            );
+        
+        if ($angeltype['restricted'] == false && ! UserAngelType_exists($signup_user, $angeltype)) {
+            UserAngelType_create($signup_user, $angeltype);
         }
-
-        $user_source = User($user_id);
-        engelsystem_log(
-            'User ' . User_Nick_render($user_source)
-            . ' signed up for shift ' . $shift['name']
-            . ' from ' . date('Y-m-d H:i', $shift['start'])
-            . ' to ' . date('Y-m-d H:i', $shift['end'])
-        );
-        success(_('You are subscribed. Thank you!') . ' <a href="' . page_link_to('user_myshifts') . '">' . _('My shifts') . ' &raquo;</a>');
+        
+        success(_('You are subscribed. Thank you!'));
         redirect(shift_link($shift));
     }
+    
+    $room = Room($shift['RID']);
+    return [
+        ShiftEntry_create_title(),
+        ShiftEntry_create_view_user($shift, $room, $angeltype, $comment)
+    ];
+}
 
-    $angeltype_select = '';
-    if (in_array('user_shifts_admin', $privileges)) {
-        $users = DB::select('
-            SELECT *,
-            (
-                SELECT count(*)
-                FROM `ShiftEntry`
-                WHERE `freeloaded`=1
-                AND `ShiftEntry`.`UID`=`User`.`UID`
-            ) AS `freeloaded`
-            FROM `User`
-            ORDER BY `Nick`
-        ');
-        $users_select = [];
-        foreach ($users as $usr) {
-            $users_select[$usr['UID']] = $usr['Nick'] . ($usr['freeloaded'] == 0 ? '' : ' (' . _('Freeloader') . ')');
-        }
-        $user_text = html_select_key('user_id', 'user_id', $users_select, $user['UID']);
-
-        $angeltypes_source = DB::select('SELECT `id`, `name` FROM `AngelTypes` ORDER BY `name`');
-        $angeltypes = [];
-        foreach ($angeltypes_source as $angeltype) {
-            $angeltypes[$angeltype['id']] = $angeltype['name'];
-        }
-        $angeltype_select = html_select_key('angeltype_id', 'angeltype_id', $angeltypes, $type['id']);
-    } elseif (in_array('shiftentry_edit_angeltype_supporter', $privileges) && User_is_AngelType_supporter($user, $type)) {
-        $users = Users_by_angeltype($type);
-        $users_select = [];
-        foreach ($users as $usr) {
-            if (!$type['restricted'] || $usr['confirm_user_id'] != null) {
-                $users_select[$usr['UID']] = $usr['Nick'];
-            }
-        }
-        $user_text = html_select_key('user_id', 'user_id', $users_select, $user['UID']);
-
-        $angeltypes_source = User_angeltypes($user);
-        $angeltypes = [];
-        foreach ($angeltypes_source as $angeltype) {
-            if ($angeltype['supporter']) {
-                $angeltypes[$angeltype['id']] = $angeltype['name'];
-            }
-            $angeltype_select = html_select_key('angeltype_id', 'angeltype_id', $angeltypes, $type['id']);
-        }
-    } else {
-        $user_text = User_Nick_render($user);
-        $angeltype_select = $type['name'];
-    }
+/**
+ * Link to create a shift entry.
+ *
+ * @return string URL
+ */
+function shift_entry_create_link($shift, $angeltype, $params = [])
+{
+    $params = array_merge([
+        'action' => 'create',
+        'shift_id' => $shift['SID'],
+        'angeltype_id' => $angeltype['id']
+    ], $params);
+    return page_link_to('shift_entries', $params);
+}
 
-    return ShiftEntry_edit_view(
-        $user_text,
-        date('Y-m-d H:i', $shift['start'])
-        . ' &ndash; '
-        . date('Y-m-d H:i', $shift['end'])
-        . ' (' . shift_length($shift) . ')',
-        $shift['Name'],
-        $shift['name'],
-        $angeltype_select, '',
-        false,
-        null,
-        in_array('user_shifts_admin', $privileges)
-    );
+/**
+ * Link to create a shift entry as admin.
+ *
+ * @return string URL
+ */
+function shift_entry_create_link_admin($shift, $params = [])
+{
+    $params = array_merge([
+        'action' => 'create',
+        'shift_id' => $shift['SID']
+    ], $params);
+    return page_link_to('shift_entries', $params);
 }
 
 /**
- * Load a shift entry from get parameter entry_id.
+ * Load a shift entry from get parameter shift_entry_id.
  */
-function shift_entry_load() {
+function shift_entry_load()
+{
     $request = request();
-
-    if (!$request->has('entry_id') || !test_request_int('entry_id')) {
+    
+    if (! $request->has('shift_entry_id') || ! test_request_int('shift_entry_id')) {
         redirect(page_link_to('user_shifts'));
     }
-    $shiftEntry = ShiftEntry($request->input('entry_id'));
-    if($shiftEntry == null) {
+    $shiftEntry = ShiftEntry($request->input('shift_entry_id'));
+    if ($shiftEntry == null) {
         error(_('Shift entry not found.'));
         redirect(page_link_to('user_shifts'));
     }
@@ -258,24 +294,46 @@ function shift_entry_delete_controller()
     global $user;
     $request = request();
     $shiftEntry = shift_entry_load();
-
+    
     $shift = Shift($shiftEntry['SID']);
     $angeltype = AngelType($shiftEntry['TID']);
     $signout_user = User($shiftEntry['UID']);
-    if(!Shift_signout_allowed($shift, $angeltype, $signout_user)) {
+    if (! Shift_signout_allowed($shift, $angeltype, $signout_user)) {
         error(_('You are not allowed to remove this shift entry. If neccessary, ask your supporter or heaven to do so.'));
         redirect(user_link($signout_user));
     }
     
-    if($request->has('continue')) {
+    if ($request->has('continue')) {
         ShiftEntry_delete($shiftEntry);
         success(_('Shift entry removed.'));
         redirect(shift_link($shift));
     }
-
-    if($user['UID'] == $signout_user['UID']) {
-        return ShiftEntry_delete_view($shiftEntry, $shift, $angeltype, $signout_user);
+    
+    if ($user['UID'] == $signout_user['UID']) {
+        return [
+            ShiftEntry_delete_title(),
+            ShiftEntry_delete_view($shiftEntry, $shift, $angeltype, $signout_user)
+        ];
     }
     
-    return ShiftEntry_delete_view_admin($shiftEntry, $shift, $angeltype, $signout_user);
+    return [
+        ShiftEntry_delete_title(),
+        ShiftEntry_delete_view_admin($shiftEntry, $shift, $angeltype, $signout_user)
+    ];
+}
+
+/**
+ * Link to delete a shift entry.
+ *
+ * @param array $shiftEntry            
+ *
+ * @return string URL
+ */
+function shift_entry_delete_link($shiftEntry, $params = [])
+{
+    $params = array_merge([
+        'action' => 'delete',
+        'shift_entry_id' => $shiftEntry['id']
+    ], $params);
+    return page_link_to('shift_entries', $params);
 }
diff --git a/includes/model/ShiftEntry_model.php b/includes/model/ShiftEntry_model.php
index 4ff5675d..38db5959 100644
--- a/includes/model/ShiftEntry_model.php
+++ b/includes/model/ShiftEntry_model.php
@@ -74,8 +74,10 @@ function ShiftEntries_by_shift($shift_id)
  */
 function ShiftEntry_create($shift_entry)
 {
-    mail_shift_assign(User($shift_entry['UID']), Shift($shift_entry['SID']));
-    return DB::insert('
+    $user = User($shift_entry['UID']);
+    $shift = Shift($shift_entry['SID']);
+    mail_shift_assign($user, $shift);
+    $result = DB::insert('
           INSERT INTO `ShiftEntry` (
               `SID`,
               `TID`,
@@ -95,6 +97,13 @@ function ShiftEntry_create($shift_entry)
             (int)$shift_entry['freeloaded'],
         ]
     );
+    engelsystem_log(
+        'User ' . User_Nick_render($user)
+        . ' signed up for shift ' . $shift['name']
+        . ' from ' . date('Y-m-d H:i', $shift['start'])
+        . ' to ' . date('Y-m-d H:i', $shift['end'])
+        );
+    return $result;
 }
 
 /**
diff --git a/includes/pages/user_shifts.php b/includes/pages/user_shifts.php
index 9ff9ba1a..39dcc101 100644
--- a/includes/pages/user_shifts.php
+++ b/includes/pages/user_shifts.php
@@ -29,15 +29,10 @@ function user_shifts()
         redirect(page_link_to('user_myshifts'));
     }
 
-    // Löschen einzelner Schicht-Einträge (Also Belegung einer Schicht von Engeln) durch Admins
-    if ($request->has('entry_id')) {
-        return shift_entry_delete_controller();
-    } elseif ($request->has('edit_shift')) {
+    if ($request->has('edit_shift')) {
         return shift_edit_controller();
     } elseif ($request->has('delete_shift')) {
         return shift_delete_controller();
-    } elseif ($request->has('shift_id')) {
-        return shift_entry_add_controller();
     }
     return view_user_shifts();
 }
diff --git a/includes/sys_form.php b/includes/sys_form.php
index 24630115..e6aadddc 100644
--- a/includes/sys_form.php
+++ b/includes/sys_form.php
@@ -208,7 +208,7 @@ function form_info($label, $text = '')
 function form_submit($name, $label)
 {
     return form_element(
-        '<input class="btn btn-primary" type="submit" name="' . $name . '" value="' . $label . '" />',
+        '<button class="btn btn-primary" type="submit" name="' . $name . '">' . $label . '</button>',
         ''
     );
 }
diff --git a/includes/view/ShiftCalendarShiftRenderer.php b/includes/view/ShiftCalendarShiftRenderer.php
index 3e59d61a..74b36bc3 100644
--- a/includes/view/ShiftCalendarShiftRenderer.php
+++ b/includes/view/ShiftCalendarShiftRenderer.php
@@ -125,8 +125,7 @@ class ShiftCalendarShiftRenderer
 
         if (in_array('user_shifts_admin', $privileges)) {
             $html .= '<li class="list-group-item">';
-            $html .= button(
-                    page_link_to('user_shifts', ['shift_id' => $shift['SID']]),
+            $html .= button(shift_entry_create_link_admin($shift),
                     glyph('plus') . _('Add more angels'),
                     'btn-xs'
                 );
@@ -172,12 +171,12 @@ class ShiftCalendarShiftRenderer
             case ShiftSignupState::FREE:
                 // When admin or free display a link + button for sign up
                 $entry_list[] = '<a href="'
-                    . page_link_to('user_shifts', ['shift_id' => $shift['SID'], 'type_id' => $angeltype['id']])
+                    . shift_entry_create_link($shift, $angeltype)
                     . '">'
                     . $inner_text
                     . '</a> '
                     . button(
-                        page_link_to('user_shifts', ['shift_id' => $shift['SID'], 'type_id' => $angeltype['id']]),
+                        shift_entry_create_link($shift, $angeltype),
                         _('Sign up'), 'btn-xs btn-primary'
                     );
                 break;
diff --git a/includes/view/ShiftEntry_view.php b/includes/view/ShiftEntry_view.php
index 6dceac10..da99e9d8 100644
--- a/includes/view/ShiftEntry_view.php
+++ b/includes/view/ShiftEntry_view.php
@@ -10,92 +10,138 @@
  *
  * @return string HTML
  */
-function ShiftEntry_delete_view_admin($shiftEntry, $shift, $angeltype, $signoff_user) {
+function ShiftEntry_delete_view_admin($shiftEntry, $shift, $angeltype, $signoff_user)
+{
     return page_with_title(ShiftEntry_delete_title(), [
-        info(sprintf(
-            _('Do you want to sign off %s from shift %s from %s to %s as %s?'), 
-            User_Nick_render($signoff_user),
-            $shift['name'],
-            date('Y-m-d H:i', $shift['start']),
-            date('Y-m-d H:i', $shift['end']),
-            $angeltype['name']
-        ), true),
+        info(sprintf(_('Do you want to sign off %s from shift %s from %s to %s as %s?'), User_Nick_render($signoff_user), $shift['name'], date('Y-m-d H:i', $shift['start']), date('Y-m-d H:i', $shift['end']), $angeltype['name']), true),
         buttons([
             button(user_link($signoff_user), glyph('remove') . _('cancel')),
-            button(ShiftEntry_delete_link($shiftEntry, ['continue' => 1]), glyph('ok') . _('delete'), 'btn-danger')
+            button(shift_entry_delete_link($shiftEntry, [
+                'continue' => 1
+            ]), glyph('ok') . _('delete'), 'btn-danger')
         ])
     ]);
 }
 
 /**
  * Sign off from a shift, asking for ack.
- * 
- * @param array $shiftEntry
- * @param array $shift
- * @param array $angeltype
- * @param array $signoff_user
- * 
+ *
+ * @param array $shiftEntry            
+ * @param array $shift            
+ * @param array $angeltype            
+ * @param array $signoff_user            
+ *
  * @return string HTML
  */
-function ShiftEntry_delete_view($shiftEntry, $shift, $angeltype, $signoff_user) {
+function ShiftEntry_delete_view($shiftEntry, $shift, $angeltype, $signoff_user)
+{
     return page_with_title(ShiftEntry_delete_title(), [
-        info(sprintf(
-            _('Do you want to sign off from your shift %s from %s to %s as %s?'), 
-            $shift['name'],
-            date('Y-m-d H:i', $shift['start']),
-            date('Y-m-d H:i', $shift['end']),
-            $angeltype['name']
-        ), true),
+        info(sprintf(_('Do you want to sign off from your shift %s from %s to %s as %s?'), $shift['name'], date('Y-m-d H:i', $shift['start']), date('Y-m-d H:i', $shift['end']), $angeltype['name']), true),
         buttons([
             button(user_link($signoff_user), glyph('remove') . _('cancel')),
-            button(ShiftEntry_delete_link($shiftEntry, ['continue' => 1]), glyph('ok') . _('delete'), 'btn-danger')
+            button(shift_entry_delete_link($shiftEntry, [
+                'continue' => 1
+            ]), glyph('ok') . _('delete'), 'btn-danger')
         ])
     ]);
 }
 
 /**
- * Link to delete a shift entry.
- * @param array $shiftEntry
+ * Title for deleting a shift entry.
+ */
+function ShiftEntry_delete_title()
+{
+    return _('Shift sign off');
+}
+
+/**
+ * Admin puts user into shift.
+ *
+ * @param array $shift            
+ * @param array $room            
+ * @param array $angeltype  
+ * @param array $angeltypes_select          
+ * @param array $signup_user            
+ * @param array $users_select            
+ */
+function ShiftEntry_create_view_admin($shift, $room, $angeltype, $angeltypes_select, $signup_user, $users_select)
+{
+    return page_with_title(ShiftEntry_create_title() . ': ' . $shift['name'] . ' <small class="moment-countdown" data-timestamp="' . $shift['start'] . '">%c</small>', [
+        Shift_view_header($shift, $room),
+        info(_('Do you want to sign up the following user for this shift?'), true),
+        form([
+            form_select('angeltype_id', _('Angeltype'), $angeltypes_select, $angeltype['id']),
+            form_select('user_id', _('User'), $users_select, $signup_user['UID']),
+            form_submit('submit', glyph('ok') . _('Save'))
+        ])
+    ]);
+}
+
+/**
+ * Supporter puts user into shift.
+ *
+ * @param array $shift            
+ * @param array $room            
+ * @param array $angeltype            
+ * @param array $signup_user            
+ * @param array $users_select            
+ */
+function ShiftEntry_create_view_supporter($shift, $room, $angeltype, $signup_user, $users_select)
+{
+    return page_with_title(ShiftEntry_create_title() . ': ' . $shift['name'] . ' <small class="moment-countdown" data-timestamp="' . $shift['start'] . '">%c</small>', [
+        Shift_view_header($shift, $room),
+        info(sprintf(_('Do you want to sign up the following user for this shift as %s?'), AngelType_name_render($angeltype)), true),
+        form([
+            form_select('user_id', _('User'), $users_select, $signup_user['UID']),
+            form_submit('submit', glyph('ok') . _('Save'))
+        ])
+    ]);
+}
+
+/**
+ * User joining a shift.
  * 
- * @return string URL
+ * @param array $shift            
+ * @param array $room            
+ * @param array $angeltype  
+ * @param string $comment
  */
-function ShiftEntry_delete_link($shiftEntry, $params = []) {
-    $params = array_merge(['entry_id' => $shiftEntry['id']], $params);
-    return page_link_to('user_shifts', $params);
+function ShiftEntry_create_view_user($shift, $room, $angeltype, $comment)
+{
+    return page_with_title(ShiftEntry_create_title() . ': ' . $shift['name'] . ' <small class="moment-countdown" data-timestamp="' . $shift['start'] . '">%c</small>', [
+        Shift_view_header($shift, $room),
+        info(sprintf(_('Do you want to sign up for this shift as %s?'), AngelType_name_render($angeltype)), true),
+        form([
+            form_textarea('comment', _('Comment (for your eyes only):'), $comment),
+            form_submit('submit', glyph('ok') . _('Save'))
+        ])
+    ]);
 }
 
 /**
- * Title for deleting a shift entry.
+ * Title for creating a shift entry.
  */
-function ShiftEntry_delete_title() {
-    return _('Shift sign off');
+function ShiftEntry_create_title()
+{
+    return _('Shift signup');
 }
 
 /**
  * Display form for adding/editing a shift entry.
  *
- * @param string $angel
- * @param string $date
- * @param string $location
- * @param string $title
- * @param string $type
- * @param string $comment
- * @param bool   $freeloaded
- * @param string $freeload_comment
- * @param bool   $user_admin_shifts
+ * @param string $angel            
+ * @param string $date            
+ * @param string $location            
+ * @param string $title            
+ * @param string $type            
+ * @param string $comment            
+ * @param bool $freeloaded            
+ * @param string $freeload_comment            
+ * @param bool $user_admin_shifts            
  * @return string
  */
-function ShiftEntry_edit_view(
-    $angel,
-    $date,
-    $location,
-    $title,
-    $type,
-    $comment,
-    $freeloaded,
-    $freeload_comment,
-    $user_admin_shifts = false
-) {
+function ShiftEntry_edit_view($angel, $date, $location, $title, $type, $comment, $freeloaded, $freeload_comment, $user_admin_shifts = false)
+{
     $freeload_form = [];
     if ($user_admin_shifts) {
         $freeload_form = [
diff --git a/includes/view/Shifts_view.php b/includes/view/Shifts_view.php
index bc905f39..083477e6 100644
--- a/includes/view/Shifts_view.php
+++ b/includes/view/Shifts_view.php
@@ -3,6 +3,43 @@
 use Engelsystem\ShiftSignupState;
 
 /**
+ * Renders the basic shift view header.
+ * 
+ * @param array $shift
+ * @param array $room
+ * 
+ * @return string HTML
+ */
+function Shift_view_header($shift, $room) {
+    return div('row', [
+        div('col-sm-3 col-xs-6', [
+            '<h4>' . _('Title') . '</h4>',
+            '<p class="lead">' . ($shift['URL'] != '' ? '<a href="' . $shift['URL'] . '">' . $shift['title'] . '</a>' : $shift['title']) . '</p>'
+        ]),
+        div('col-sm-3 col-xs-6', [
+            '<h4>' . _('Start') . '</h4>',
+            '<p class="lead' . (time() >= $shift['start'] ? ' text-success' : '') . '">',
+            glyph('calendar') . date(_('Y-m-d'), $shift['start']),
+            '<br />',
+            glyph('time') . date('H:i', $shift['start']),
+            '</p>'
+        ]),
+        div('col-sm-3 col-xs-6', [
+            '<h4>' . _('End') . '</h4>',
+            '<p class="lead' . (time() >= $shift['end'] ? ' text-success' : '') . '">',
+            glyph('calendar') . date(_('Y-m-d'), $shift['end']),
+            '<br />',
+            glyph('time') . date('H:i', $shift['end']),
+            '</p>'
+        ]),
+        div('col-sm-3 col-xs-6', [
+            '<h4>' . _('Location') . '</h4>',
+            '<p class="lead">' . Room_name_render($room) . '</p>'
+        ])
+    ]);
+}
+
+/**
  * @param array $shift
  * @return string
  */
@@ -41,10 +78,7 @@ function Shift_signup_button_render($shift, $angeltype, $user_angeltype = null)
     }
 
     if ($angeltype['shift_signup_state']->isSignupAllowed()) {
-        return button(
-            page_link_to('user_shifts', ['shift_id' => $shift['SID'], 'type_id' => $angeltype['id']]),
-            _('Sign up')
-        );
+        return button(shift_entry_create_link($shift, $angeltype),  _('Sign up'));
     } elseif ($user_angeltype == null) {
         return button(
             page_link_to('angeltypes', ['action' => 'view', 'angeltype_id' => $angeltype['id']]),
@@ -100,32 +134,7 @@ function Shift_view($shift, $shifttype, $room, $angeltypes_source, ShiftSignupSt
                 $admin_shifttypes ? button(shifttype_link($shifttype), $shifttype['name']) : '',
                 $admin_rooms ? button(room_link($room), glyph('map-marker') . $room['Name']) : ''
             ]) : '',
-            div('row', [
-                div('col-sm-3 col-xs-6', [
-                    '<h4>' . _('Title') . '</h4>',
-                    '<p class="lead">' . ($shift['URL'] != '' ? '<a href="' . $shift['URL'] . '">' . $shift['title'] . '</a>' : $shift['title']) . '</p>'
-                ]),
-                div('col-sm-3 col-xs-6', [
-                    '<h4>' . _('Start') . '</h4>',
-                    '<p class="lead' . (time() >= $shift['start'] ? ' text-success' : '') . '">',
-                    glyph('calendar') . date(_('Y-m-d'), $shift['start']),
-                    '<br />',
-                    glyph('time') . date('H:i', $shift['start']),
-                    '</p>'
-                ]),
-                div('col-sm-3 col-xs-6', [
-                    '<h4>' . _('End') . '</h4>',
-                    '<p class="lead' . (time() >= $shift['end'] ? ' text-success' : '') . '">',
-                    glyph('calendar') . date(_('Y-m-d'), $shift['end']),
-                    '<br />',
-                    glyph('time') . date('H:i', $shift['end']),
-                    '</p>'
-                ]),
-                div('col-sm-3 col-xs-6', [
-                    '<h4>' . _('Location') . '</h4>',
-                    '<p class="lead">' . Room_name_render($room) . '</p>'
-                ])
-            ]),
+            Shift_view_header($shift, $room),
             div('row', [
                 div('col-sm-6', [
                     '<h2>' . _('Needed angels') . '</h2>',
@@ -213,7 +222,7 @@ function Shift_view_render_shift_entry($shift_entry, $user_shift_admin, $angelty
                 'btn-xs'
             );
         }
-        $entry .= button_glyph(page_link_to('user_shifts', ['entry_id' => $shift_entry['id']]), 'trash', 'btn-xs');
+        $entry .= button_glyph(shift_entry_delete_link($shift_entry), 'trash', 'btn-xs');
         $entry .= '</div>';
     }
     return $entry;
diff --git a/includes/view/User_view.php b/includes/view/User_view.php
index e47603fb..dbc86724 100644
--- a/includes/view/User_view.php
+++ b/includes/view/User_view.php
@@ -365,7 +365,7 @@ function User_view_myshift($shift, $user_source, $its_me)
     }
     if (Shift_signout_allowed($shift, ['id' => $shift['TID']], $user_source)) {
         $myshift['actions'][] = button(
-            ShiftEntry_delete_link($shift),
+            shift_entry_delete_link($shift),
             glyph('trash') . _('sign off'),
             'btn-xs'
         );