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engelsystem/includes/view/ShiftCalendarRenderer.php

329 lines
11 KiB
PHP

<?php
namespace Engelsystem;
class ShiftCalendarRenderer {
/**
* 15m * 60s/m = 900s
*/
const SECONDS_PER_ROW = 900;
/**
* Height of a block in pixel.
* Do not change - corresponds with theme/css
*/
const BLOCK_HEIGHT = 30;
/**
* Distance between two shifts in pixels
*/
const MARGIN = 5;
private $lanes;
private $shiftsFilter;
private $firstBlockStartTime = null;
private $blocksPerSlot = null;
public function __construct($shifts, ShiftsFilter $shiftsFilter) {
$this->shiftsFilter = $shiftsFilter;
$this->firstBlockStartTime = $this->calcFirstBlockStartTime($shifts);
$this->lanes = $this->assignShiftsToLanes($shifts);
}
/**
* Assigns the shifts to different lanes per room if they collide
*
* @param Shift[] $shifts
* The shifts to assign
*
* @return Returns an array that assigns a room_id to an array of ShiftCalendarLane containing the shifts
*/
private function assignShiftsToLanes($shifts) {
// array that assigns a room id to a list of lanes (per room)
$lanes = [];
foreach ($shifts as $shift) {
$room_id = $shift['RID'];
if (! isset($lanes[$room_id])) {
// initialize room with one lane
$header = Room_name_render([
'RID' => $room_id,
'Name' => $shift['room_name']
]);
$lanes[$room_id] = [
new ShiftCalendarLane($header, $this->getFirstBlockStartTime(), $this->getBlocksPerSlot())
];
}
// Try to add the shift to the existing lanes for this room
$shift_added = false;
foreach ($lanes[$room_id] as $lane) {
$shift_added = $lane->addShift($shift);
if ($shift_added == true) {
break;
}
}
// If all lanes for this room are busy, create a new lane and add shift to it
if ($shift_added == false) {
$newLane = new ShiftCalendarLane("", $this->getFirstBlockStartTime(), $this->getBlocksPerSlot());
if (! $newLane->addShift($shift)) {
engelsystem_error("Unable to add shift to new lane.");
}
$lanes[$room_id][] = $newLane;
}
}
return $lanes;
}
public function getFirstBlockStartTime() {
return $this->firstBlockStartTime;
}
public function getBlocksPerSlot() {
if ($this->blocksPerSlot == null) {
$this->blocksPerSlot = $this->calcBlocksPerSlot();
}
return $this->blocksPerSlot;
}
/**
* Renders the whole calendar
*
* @return the generated html
*/
public function render() {
return div('shift-calendar', [
$this->renderTimeLane(),
$this->renderShiftLanes()
]);
}
/**
* Renders the lanes containing the shifts
*/
private function renderShiftLanes() {
$html = "";
foreach ($this->lanes as $room_id => $room_lanes) {
foreach ($room_lanes as $lane) {
$html .= $this->renderLane($lane);
}
}
return $html;
}
/**
* Renders a single lane
*
* @param ShiftCalendarLane $lane
* The lane to render
*/
private function renderLane(ShiftCalendarLane $lane) {
$html = "";
$rendered_until = $this->getFirstBlockStartTime();
foreach ($lane->getShifts() as $shift) {
while ($rendered_until + ShiftCalendarRenderer::SECONDS_PER_ROW <= $shift['start']) {
$html .= $this->renderTick($rendered_until);
$rendered_until += ShiftCalendarRenderer::SECONDS_PER_ROW;
}
list($shift_height, $shift_html) = $this->renderShift($shift);
$html .= $shift_html;
$rendered_until += $shift_height * ShiftCalendarRenderer::SECONDS_PER_ROW;
}
while ($rendered_until <= $this->shiftsFilter->getEndTime()) {
$html .= $this->renderTick($rendered_until);
$rendered_until += ShiftCalendarRenderer::SECONDS_PER_ROW;
}
return div('lane', [
div('header', $lane->getHeader()),
$html
]);
}
/**
* Renders a tick/block for given time
*
* @param int $time
* unix timestamp
* @param boolean $label
* Should time labels be generated?
* @return rendered tick html
*/
private function renderTick($time, $label = false) {
if ($time % (24 * 60 * 60) == 23 * 60 * 60) {
if (! $label) {
return div('tick day');
}
return div('tick day', [
date('Y-m-d<b\r />H:i', $time)
]);
} elseif ($time % (60 * 60) == 0) {
if (! $label) {
return div('tick hour');
}
return div('tick hour', [
date('H:i', $time)
]);
}
return div('tick');
}
/**
* Renders the left time lane including hour/day ticks
*/
private function renderTimeLane() {
$time_slot = [
div('header', [
_("Time")
])
];
for ($block = 0; $block < $this->getBlocksPerSlot(); $block ++) {
$thistime = $this->getFirstBlockStartTime() + ($block * ShiftCalendarRenderer::SECONDS_PER_ROW);
$time_slot[] = $this->renderTick($thistime, true);
}
return div('lane time', $time_slot);
}
private function collides() {
// TODO
return false;
}
private function renderShift($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;";
}
$entry_list[] = "<span style=\"$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') . '&amp;shift_id=' . $shift['SID'] . '&amp;type_id=' . $angeltype['id'] . '">' . $inner_text . '</a> ' . button(page_link_to('user_shifts') . '&amp;shift_id=' . $shift['SID'] . '&amp;type_id=' . $angeltype['id'], _('Sign up'), 'btn-xs btn-primary');
} 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') . '&amp;shift_id=' . $shift['SID'] . '&amp;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"] - $shift["start"]) / ShiftCalendarRenderer::SECONDS_PER_ROW);
if ($blocks < 1) {
$blocks = 1;
}
$shift_heading = date('H:i', $shift['start']) . ' &dash; ' . date('H:i', $shift['end']) . ' &mdash; ' . ShiftType($shift['shifttype_id'])['name'];
return [
$blocks,
'<td class="shift" rowspan="' . $blocks . '">' . div('shift panel panel-' . $class . '" style="height: ' . ($blocks * ShiftCalendarRenderer::BLOCK_HEIGHT - ShiftCalendarRenderer::MARGIN) . 'px"', [
div('panel-heading', [
'<a href="' . shift_link($shift) . '">' . $shift_heading . '</a>',
$header_buttons
]),
div('panel-body', [
$info_text,
Room_name_render([
'RID' => $shift['RID'],
'Name' => $shift['room_name']
])
]),
$shifts_row,
div('shift-spacer')
]) . '</td>'
];
}
private function calcFirstBlockStartTime($shifts) {
$start_time = $this->shiftsFilter->getEndTime();
foreach ($shifts as $shift) {
if ($shift['start'] < $start_time) {
$start_time = $shift['start'];
}
}
return ShiftCalendarRenderer::SECONDS_PER_ROW * floor(($start_time - 60 * 60) / ShiftCalendarRenderer::SECONDS_PER_ROW);
}
private function calcBlocksPerSlot() {
return ceil(($this->shiftsFilter->getEndTime() - $this->getFirstBlockStartTime()) / ShiftCalendarRenderer::SECONDS_PER_ROW);
}
}
?>