diff options
Diffstat (limited to 'includes/view/ShiftCalendarRenderer.php')
| -rw-r--r-- | includes/view/ShiftCalendarRenderer.php | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/includes/view/ShiftCalendarRenderer.php b/includes/view/ShiftCalendarRenderer.php new file mode 100644 index 00000000..70948ec5 --- /dev/null +++ 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); + } +} + +?>
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