<?php
namespace Engelsystem;
class ShiftCalendarRenderer {
/**
* 15m * 60s/m = 900s
*/
const MINUTES_PER_ROW = 900;
const EMPTY_CELL = '<td class="empty"></td>';
private $shifts;
private $shiftsFilter;
public function __construct($shifts, ShiftsFilter $shiftsFilter) {
$this->shifts = $shifts;
$this->shiftsFilter = $shiftsFilter;
}
public function render() {
$rooms = $this->rooms();
$first_block_start_time = $this->calcFirstBlockStartTime();
$blocks_per_slot = $this->calcBlocksPerSlot($first_block_start_time);
$slotSizes = $this->calcSlotSizes($rooms, $first_block_start_time, $blocks_per_slot);
return $this->renderTable($rooms, $slotSizes, $first_block_start_time, $blocks_per_slot);
}
private function renderTableHead($rooms, $slotSizes) {
$shifts_table = '<thead><tr><th>' . _("Time") . '</th>';
foreach ($rooms as $room_id => $room_name) {
$colspan = $slotSizes[$room_id];
$shifts_table .= "<th" . (($colspan > 1) ? ' colspan="' . $colspan . '"' : '') . ">" . Room_name_render([
'RID' => $room_id,
'Name' => $room_name
]) . "</th>\n";
}
$shifts_table .= "</tr></thead>";
return $shifts_table;
}
private function initTableBody($slotSizes, $first_block_start_time, $blocks_per_slot) {
// Slot sizes plus 1 for the time
$columns_needed = array_sum($slotSizes) + 1;
$table_line = array_fill(0, $columns_needed, ShiftCalendarRenderer::EMPTY_CELL);
$table = array_fill(0, $blocks_per_slot, $table_line);
for ($block = 0; $block < $blocks_per_slot; $block ++) {
$thistime = $first_block_start_time + ($block * ShiftCalendarRenderer::MINUTES_PER_ROW);
if ($thistime % (24 * 60 * 60) == 23 * 60 * 60 && $this->shiftsFilter->getEndTime() - $this->shiftsFilter->getStartTime() > 24 * 60 * 60) {
$table[$block][0] = '<th class="row-day">' . date('Y-m-d<b\r />H:i', $thistime) . '</th>';
} elseif ($thistime % (60 * 60) == 0) {
$table[$block][0] = '<th class="row-hour">' . date('H:i', $thistime) . '</th>';
} else {
$table[$block][0] = '<th class="empty"></th>';
}
}
return $table;
}
private function calcRoomSlots($rooms, $slotSizes) {
$result = [];
$slot = 1; // 1 for the time
foreach (array_keys($rooms) as $room_id) {
$result[$room_id] = $slot;
$slot += $slotSizes[$room_id];
}
return $result;
}
private function collides() {
// TODO
return false;
}
private function renderShift($shift) {
global $privileges;
$collides = $this->collides();
$is_free = false;
$shifts_row = '';
$header_buttons = "";
if (in_array('admin_shifts', $privileges)) {
$header_buttons = '<div class="pull-right">' . table_buttons([
button(page_link_to('user_shifts') . '&edit_shift=' . $shift['SID'], glyph('edit'), 'btn-xs'),
button(page_link_to('user_shifts') . '&delete_shift=' . $shift['SID'], glyph('trash'), 'btn-xs')
]) . '</div>';
}
$info_text = "";
if ($shift['title'] != '') {
$info_text = glyph('info-sign') . $shift['title'] . '<br>';
}
$angeltypes = NeededAngelTypes_by_shift($shift['SID']);
foreach ($angeltypes as $angeltype) {
$entry_list = [];
$freeloader = 0;
foreach ($angeltype['shift_entries'] as $entry) {
$style = '';
if ($entry['freeloaded']) {
$freeloader ++;
$style = " text-decoration: line-through;";
}
if (in_array('user_shifts_admin', $privileges)) {
$entry_list[] = "<span style=\"$style\">" . User_Nick_render(User($entry['UID'])) . ' ' . table_buttons([
button(page_link_to('user_shifts') . '&entry_id=' . $entry['id'], glyph('trash'), 'btn-xs')
]) . '</span>';
} else {
$entry_list[] = "<span style=\"$style\">" . User_Nick_render(User($entry['UID'])) . "</span>";
}
}
if ($angeltype['count'] - count($angeltype['shift_entries']) - $freeloader > 0) {
$inner_text = sprintf(ngettext("%d helper needed", "%d helpers needed", $angeltype['count'] - count($angeltype['shift_entries'])), $angeltype['count'] - count($angeltype['shift_entries']));
// is the shift still running or alternatively is the user shift admin?
$user_may_join_shift = true;
// you cannot join if user alread joined a parallel or this shift
$user_may_join_shift &= ! $collides;
// you cannot join if user is not of this angel type
$user_may_join_shift &= isset($angeltype['user_id']);
// you cannot join if you are not confirmed
if ($angeltype['restricted'] == 1 && isset($angeltype['user_id'])) {
$user_may_join_shift &= isset($angeltype['confirm_user_id']);
}
// you can only join if the shift is in future or running
$user_may_join_shift &= time() < $shift['start'];
// User shift admins may join anybody in every shift
$user_may_join_shift |= in_array('user_shifts_admin', $privileges);
if ($user_may_join_shift) {
$entry_list[] = '<a href="' . page_link_to('user_shifts') . '&shift_id=' . $shift['SID'] . '&type_id=' . $angeltype['id'] . '">' . $inner_text . '</a> ' . button(page_link_to('user_shifts') . '&shift_id=' . $shift['SID'] . '&type_id=' . $angeltype['id'], _('Sign up'), 'btn-xs');
} else {
if (time() > $shift['start']) {
$entry_list[] = $inner_text . ' (' . _('ended') . ')';
} elseif ($angeltype['restricted'] == 1 && isset($angeltype['user_id']) && ! isset($angeltype['confirm_user_id'])) {
$entry_list[] = $inner_text . glyph('lock');
} elseif ($angeltype['restricted'] == 1) {
$entry_list[] = $inner_text;
} elseif ($collides) {
$entry_list[] = $inner_text;
} else {
$entry_list[] = $inner_text . '<br />' . button(page_link_to('user_angeltypes') . '&action=add&angeltype_id=' . $angeltype['id'], sprintf(_('Become %s'), $angeltype['name']), 'btn-xs');
}
}
unset($inner_text);
$is_free = true;
}
$shifts_row .= '<li class="list-group-item">';
$shifts_row .= '<strong>' . AngelType_name_render($angeltype) . ':</strong> ';
$shifts_row .= join(", ", $entry_list);
$shifts_row .= '</li>';
}
if (in_array('user_shifts_admin', $privileges)) {
$shifts_row .= '<li class="list-group-item">' . button(page_link_to('user_shifts') . '&shift_id=' . $shift['SID'] . '&type_id=' . $angeltype['id'], _("Add more angels"), 'btn-xs') . '</li>';
}
if ($shifts_row != '') {
$shifts_row = '<ul class="list-group">' . $shifts_row . '</ul>';
}
if (isset($shift['own']) && $shift['own'] && ! in_array('user_shifts_admin', $privileges)) {
$class = 'primary';
} elseif ($collides && ! in_array('user_shifts_admin', $privileges)) {
$class = 'default';
} elseif ($is_free) {
$class = 'danger';
} else {
$class = 'success';
}
$blocks = ceil(($shift["end"] - $shift["start"]) / ShiftCalendarRenderer::MINUTES_PER_ROW);
if ($blocks < 1) {
$blocks = 1;
}
return [
$blocks,
'<td class="shift" rowspan="' . $blocks . '">' . div('panel panel-' . $class, [
div('panel-heading', [
date('H:i', $shift['start']),
'‐',
date('H:i', $shift['end']),
'—',
ShiftType($shift['shifttype_id'])['name'],
$header_buttons
]),
div('panel-body', [
$info_text,
Room_name_render([
'RID' => $shift['RID'],
'Name' => $shift['room_name']
])
]),
$shifts_row
]) . '</td>'
];
}
private function renderTableBody($rooms, $slotSizes, $first_block_start_time, $blocks_per_slot) {
$table = $this->initTableBody($slotSizes, $first_block_start_time, $blocks_per_slot);
$room_slots = $this->calcRoomSlots($rooms, $slotSizes);
foreach ($this->shifts as $shift) {
list($blocks, $shift_content) = $this->renderShift($shift);
$start_block = floor(($shift['start'] - $first_block_start_time) / ShiftCalendarRenderer::MINUTES_PER_ROW);
$slot = $room_slots[$shift['RID']];
while ($table[$start_block][$slot] != ShiftCalendarRenderer::EMPTY_CELL) {
$slot ++;
}
$table[$start_block][$slot] = $shift_content;
for ($block = 1; $block < $blocks; $block ++) {
$table[$start_block + $block][$slot] = '';
}
}
$result = '<tbody>';
foreach ($table as $table_line) {
$result .= '<tr>' . join('', $table_line) . '</tr>';
}
$result .= '</tbody>';
return $result;
}
private function renderTable($rooms, $slotSizes, $first_block_start_time, $blocks_per_slot) {
return div('shifts-table', [
'<table id="shifts" class="table scrollable">',
$this->renderTableHead($rooms, $slotSizes),
$this->renderTableBody($rooms, $slotSizes, $first_block_start_time, $blocks_per_slot),
'</table>'
]);
}
/**
* Calculates the slots for each room that appears in the shifts
*/
private function rooms() {
$rooms = [];
foreach ($this->shifts as $shift) {
if (! isset($rooms[$shift['RID']])) {
$rooms[$shift['RID']] = $shift['room_name'];
}
}
return $rooms;
}
private function calcFirstBlockStartTime() {
$start_time = $this->shiftsFilter->getEndTime();
foreach ($this->shifts as $shift) {
if ($shift['start'] < $start_time) {
$start_time = $shift['start'];
}
}
return ShiftCalendarRenderer::MINUTES_PER_ROW * floor(($start_time - 60 * 60) / ShiftCalendarRenderer::MINUTES_PER_ROW);
}
private function calcBlocksPerSlot($first_block_start_time) {
return ceil(($this->shiftsFilter->getEndTime() - $first_block_start_time) / ShiftCalendarRenderer::MINUTES_PER_ROW);
}
private function calcSlotSizes($rooms, $first_block_start_time, $blocks_per_slot) {
$parallel_blocks = [];
// initialize $block array
foreach (array_keys($rooms) as $room_id) {
$parallel_blocks[$room_id] = array_fill(0, $blocks_per_slot, 0);
}
// calculate number of parallel shifts in each timeslot for each room
foreach ($this->shifts as $shift) {
$room_id = $shift["RID"];
$shift_blocks = ($shift["end"] - $shift["start"]) / ShiftCalendarRenderer::MINUTES_PER_ROW;
$firstblock = floor(($shift["start"] - $first_block_start_time) / ShiftCalendarRenderer::MINUTES_PER_ROW);
for ($block = $firstblock; $block < $shift_blocks + $firstblock && $block < $blocks_per_slot; $block ++) {
$parallel_blocks[$room_id][$block] ++;
}
}
return array_map('max', $parallel_blocks);
}
}
?>