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-rw-r--r--includes/view/ShiftCalendarRenderer.php208
1 files changed, 208 insertions, 0 deletions
diff --git a/includes/view/ShiftCalendarRenderer.php b/includes/view/ShiftCalendarRenderer.php
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+++ b/includes/view/ShiftCalendarRenderer.php
@@ -0,0 +1,208 @@
+<?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 $room_lanes) {
+ foreach ($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) {
+ $shift_renderer = new ShiftCalendarShiftRenderer();
+ $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) = $shift_renderer->render($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', $time_slot);
+ }
+
+ private function calcFirstBlockStartTime($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);
+ }
+}
+
+?> \ No newline at end of file