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<?php |
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/** |
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* Created by PhpStorm. |
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* User: claudio |
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* Date: 12/12/15 |
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* Time: 15.41 |
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*/ |
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namespace plunner\Console\Commands\Optimise; |
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use Illuminate\Console\Scheduling\Schedule; |
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use plunner\company; |
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use plunner\Events\Optimise\ErrorEvent; |
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use plunner\Events\Optimise\OkEvent; |
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/** |
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* Class Optimise |
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* @author Claudio Cardinale <[email protected]> |
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* @copyright 2015 Claudio Cardinale |
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* @version 1.0.0 |
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* @package plunner\Console\Commands\Optimise |
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*/ |
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class Optimise |
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{ |
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//TODo max timeslots can be an environment var |
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const TIME_SLOT_DURATION = 900; //seconds -> 15 minutes |
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const DEFAULT_MAX_TIME_SLOTS = 20; //max duration of a meeting in term of timeslots //20 |
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const DEFAULT_TIME_SLOTS = 672; //total amount of timeslots that must be optimised -> one week 4*24*7 = 672 |
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private $max_time_slots = self::DEFAULT_MAX_TIME_SLOTS; |
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private $time_slots = self::DEFAULT_TIME_SLOTS; |
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//TODO timezone |
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/** |
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* @var \DateTime |
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*/ |
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private $startTime; |
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/** |
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* @var \DateTime |
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*/ |
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private $endTime; |
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/** |
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* @var Company |
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*/ |
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private $company; |
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/** |
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* @var Schedule laravel schedule object needed to perform command in background |
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*/ |
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private $schedule; |
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/** |
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* @var \Illuminate\Contracts\Foundation\Application; |
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*/ |
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private $laravel; |
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/** |
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* @var Solver |
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*/ |
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private $solver = null; |
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//TODO clone |
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//TODO to_string |
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/** |
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* Optimise constructor. |
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* @param company $company |
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* @param Schedule $schedule |
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* @param \Illuminate\Contracts\Foundation\Application $laravel |
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*/ |
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public function __construct(company $company, Schedule $schedule, \Illuminate\Contracts\Foundation\Application $laravel) |
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{ |
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$this->company = $company; |
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$this->schedule = $schedule; |
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$this->laravel = $laravel; |
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$this->setStartTime((new \DateTime())->modify('next monday')); |
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} |
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/** |
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* @param \DateTime $startTime |
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*/ |
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public function setStartTime(\DateTime $startTime) |
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{ |
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$this->startTime = clone $startTime; |
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$this->endTime = clone $this->startTime; |
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$this->endTime->add(new \DateInterval('PT' . (($this->max_time_slots + $this->time_slots) * self::TIME_SLOT_DURATION) . 'S')); |
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} |
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/** |
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* @return int |
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*/ |
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public function getMaxTimeSlots() |
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{ |
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return $this->max_time_slots; |
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} |
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/** |
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* @param int $max_time_slots |
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*/ |
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public function setMaxTimeSlots($max_time_slots) |
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{ |
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$this->max_time_slots = $max_time_slots; |
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} |
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/** |
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* @return int |
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*/ |
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public function getTimeSlots() |
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{ |
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return $this->time_slots; |
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} |
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/** |
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* @param int $time_slots |
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*/ |
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public function setTimeSlots($time_slots) |
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{ |
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$this->time_slots = $time_slots; |
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} |
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/** |
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* @return Company |
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*/ |
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public function getCompany() |
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{ |
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return $this->company; |
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} |
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/** |
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* @param Company $company |
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*/ |
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public function setCompany($company) |
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{ |
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$this->company = $company; |
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} |
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/** |
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* @return Solver |
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*/ |
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public function getSolver() |
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{ |
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return $this->solver; |
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} |
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/** |
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* @return Optimise |
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*/ |
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public function optimise() |
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{ |
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try { |
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$solver = new Solver($this->schedule, $this->laravel); |
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$solver = $this->setData($solver); |
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$solver = $solver->solve(); |
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$this->solver = $solver; |
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} catch (\Exception $e) { |
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\Event::fire(new ErrorEvent($this->company, $e->getMessage())); |
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throw new OptimiseException('Optimising error', 0, $e); |
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//TODO catch specif exception |
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} |
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return $this; |
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} |
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/** |
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* @param Solver $solver |
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* @return Solver |
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* @throws OptimiseException |
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*/ |
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private function setData(Solver $solver) |
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{ |
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$solver = $this->setTimeSlotsSolver($solver); |
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$solver = $this->setUsers($solver); |
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$solver = $this->setAllMeetingsInfo($solver); |
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$solver = $this->setUserAvailability($solver); |
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$solver = $this->setUsersMeetings($solver); |
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return $solver; |
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} |
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//TODO fix php doc with exceptions |
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/** |
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* @param Solver $solver |
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* @return Solver |
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* @throws OptimiseException |
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*/ |
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private function setTimeSlotsSolver(Solver $solver) |
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{ |
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return $solver->setTimeSlots($this->time_slots)->setMaxTimeSlots($this->max_time_slots); |
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} |
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/** |
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* @param Solver $solver |
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* @return Solver |
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*/ |
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private function setUsers(Solver $solver) |
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{ |
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//since we consider busy timeslots, we need to get all users |
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$users = $this->company->employees->pluck('id')->toArray(); |
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return $solver->setUsers($users); |
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} |
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/** |
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* @param Solver $solver |
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* @return Solver |
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*/ |
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private function setAllMeetingsInfo(Solver $solver) |
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{ |
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/** |
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* @var $meetings \Illuminate\Support\Collection |
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*/ |
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$meetings = collect($this->company->getMeetingsTimeSlots($this->startTime, $this->endTime)); |
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$timeslots = $meetings->groupBy('id')->map(function ($item) { //convert timeslots |
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return $this->durationConverter($this->timeSlotsConverter($item)); |
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}); |
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return $solver->setMeetings($timeslots->keys()->toArray()) |
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->setMeetingsDuration($meetings->pluck('duration', 'id')->toArray()) |
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->setMeetingsAvailability(self::getAvailabilityArray($timeslots, $this->time_slots)); |
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} |
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/** |
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* @param mixed $item |
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* @return mixed |
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*/ |
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private function durationConverter($item) |
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{ |
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return $item->each(function ($item2) { |
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$item2->duration = $this->convertDuration((int)$item2->duration); |
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return $item2; |
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//TODO try catch |
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}); |
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} |
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/** |
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* @param int $duration |
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* @return int |
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*/ |
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static private function convertDuration($duration) |
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{ |
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return (int)ceil($duration / self::TIME_SLOT_DURATION); |
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} |
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/** |
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* @param mixed $item |
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* @return mixed |
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*/ |
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private function timeSlotsConverter($item) |
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{ |
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return $item->each(function ($item2) { |
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$item2->time_start = $this->toTimeSlot($item2->time_start); |
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$item2->time_end = $this->toTimeSlot($item2->time_end); |
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return $item2; |
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//TODO try catch |
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}); |
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} |
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/** |
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* @param mixed $time |
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* @return int |
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* @throws OptimiseException |
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*/ |
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private function toTimeSlot($time) |
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{ |
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$dateTime = new \DateTime($time); |
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$diff = $dateTime->diff($this->startTime); |
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$diff = explode(':', $diff->format('%R:%d:%h:%i:%s')); |
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$diff = $diff[1] * 86400 + $diff[2] * 3600 + $diff[3] * 60 + $diff[4]; |
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//if($diff[0] != '-' && $diff != 0) |
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// throw new OptimiseException('timeslot time <= startTime'); |
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//TODO fix check |
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//TODO check if diff makes sense |
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//TODO check upper limit |
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return (int)(round($diff / self::TIME_SLOT_DURATION) + 1); //TODO can round cause overlaps? |
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} |
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/** |
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* @param \Illuminate\Support\Collection $timeSlots |
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* @param bool|true $free if true the array is filled with 1 for timeslots values else with 0 for timeslots values |
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* @return array |
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*/ |
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static private function getAvailabilityArray(\Illuminate\Support\Collection $timeSlots, $timeslotsN, $free = true) |
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{ |
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$ret = []; |
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foreach ($timeSlots as $id => $timeSlots2) { |
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$ret = self::fillTimeSlots($ret, $id, $timeSlots2, $free ? '1' : '0'); |
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$ret = self::fillRow($ret, $id, $timeslotsN, $free ? '0' : '1'); |
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} |
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return $ret; |
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} |
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/** |
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* @param array $array |
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* @param int $id |
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* @param \Illuminate\Support\Collection $timeSlots |
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* @param string $fill |
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* @return array |
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*/ |
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static private function fillTimeSlots(array $array, $id, \Illuminate\Support\Collection $timeSlots, $fill = '0') |
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{ |
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foreach ($timeSlots as $timeSlot) { |
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if (!isset($array[$id])) |
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$array[$id] = []; |
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$array[$id] = self::arrayPadInterval($array[$id], $timeSlot->time_start, $timeSlot->time_end, $fill); |
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} |
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return $array; |
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} |
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/** |
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* @param array $array |
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* @param int $from |
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* @param int $to |
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* @param string $pad |
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* @return array |
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*/ |
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static private function arrayPadInterval(array $array, $from, $to, $pad = '0') |
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{ |
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for ($i = $from; $i < $to; $i++) |
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$array[$i] = $pad; |
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return $array; |
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} |
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/** |
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* @param array $array |
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* @param int $id |
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* @param string $fill |
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* @return array |
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*/ |
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static private function fillRow(array $array, $id, $until, $fill = '0') |
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{ |
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for ($i = 1; $i <= $until; $i++) { |
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if (!isset($array[$id][$i])) |
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$array[$id][$i] = $fill; |
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} |
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return $array; |
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} |
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/** |
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* @param Solver $solver |
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* @return Solver |
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* @throws OptimiseException |
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*/ |
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private function setUserAvailability(Solver $solver) |
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{ |
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/** |
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* @var $users \Illuminate\Support\Collection |
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*/ |
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$users = collect($this->company->getEmployeesTimeSlots($this->startTime, $this->endTime)); |
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$timeslots = $users->groupBy('id')->map(function ($item) { //convert timeslots |
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return $this->timeSlotsConverter($item); |
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}); |
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return $solver->setUsersAvailability(self::getAvailabilityArray($timeslots, $this->time_slots, false)); |
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} |
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/** |
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* @param Solver $solver |
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* @return Solver |
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* @throws OptimiseException |
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*/ |
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private function setUsersMeetings(Solver $solver) |
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{ |
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$users = $solver->getUsers(); |
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$meetings = $solver->getMeetings(); |
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/** |
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* @var $usersMeetings \Illuminate\Support\Collection |
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*/ |
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$usersMeetings = collect($this->company->getUsersMeetings($users, $meetings))->groupBy('employee_id'); |
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2 |
|
return $solver->setUsersMeetings(self::getUsersMeetingsArray($users, $meetings, $usersMeetings)); |
374
|
|
|
} |
375
|
|
|
|
376
|
|
|
/** |
377
|
|
|
* @param array $users |
378
|
|
|
* @param array $meetings |
379
|
|
|
* @param \Illuminate\Support\Collection $usersMeetings |
380
|
|
|
* @return array |
381
|
|
|
*/ |
382
|
2 |
|
static private function getUsersMeetingsArray($users, $meetings, \Illuminate\Support\Collection $usersMeetings) |
383
|
|
|
{ |
384
|
2 |
|
$ret = []; |
385
|
2 |
|
foreach ($users as $user) { |
386
|
2 |
|
$usersMeetingsTmp = $usersMeetings->get($user); |
387
|
2 |
|
foreach ($meetings as $meeting) { |
388
|
2 |
|
if ($usersMeetingsTmp->contains('meeting_id', $meeting)) { |
389
|
2 |
|
$ret[$user][$meeting] = 1; |
390
|
2 |
|
} else { |
391
|
2 |
|
$ret[$user][$meeting] = 0; |
392
|
|
|
} |
393
|
2 |
|
} |
394
|
2 |
|
} |
395
|
|
|
|
396
|
2 |
|
return $ret; |
397
|
|
|
} |
398
|
|
|
|
399
|
|
|
/** |
400
|
|
|
* @return Optimise |
401
|
|
|
*/ |
402
|
2 |
|
public function save() |
403
|
|
|
{ |
404
|
2 |
|
if (!($this->solver instanceof Solver)) { |
405
|
|
|
\Event::fire(new ErrorEvent($this->company, 'solver is not an instace of Solver')); |
406
|
|
|
throw new OptimiseException('solver is not an instance of Solver'); |
407
|
|
|
return; |
|
|
|
|
408
|
|
|
} |
409
|
|
|
//TODO check results before save them |
410
|
|
|
|
411
|
|
|
try { |
412
|
2 |
|
$this->saveMeetings($this->solver); |
413
|
2 |
|
$this->saveEmployeesMeetings($this->solver); |
414
|
2 |
|
} catch (\Exception $e) { |
415
|
|
|
\Event::fire(new ErrorEvent($this->company, $e->getMessage())); |
416
|
|
|
throw new OptimiseException('Optimising error', 0, $e); |
417
|
|
|
//TODO catch specif exception |
418
|
|
|
} |
419
|
|
|
//TODO Is this the correct place? |
420
|
2 |
|
\Event::fire(new OkEvent($this->company)); |
421
|
2 |
|
return $this; |
422
|
|
|
} |
423
|
|
|
|
424
|
|
|
/** |
425
|
|
|
* @param Solver $solver |
426
|
|
|
*/ |
427
|
2 |
|
private function saveMeetings(Solver $solver) |
428
|
|
|
{ |
429
|
2 |
|
$meetings = $solver->getYResults(); |
430
|
2 |
|
foreach ($meetings as $id => $meeting) { |
431
|
2 |
|
$meetingO = \plunner\Meeting::findOrFail($id);//TODO catch error |
432
|
2 |
|
$meetingO->start_time = $this->toDateTime(array_search('1', $meeting)); |
433
|
2 |
|
$meetingO->save(); |
434
|
2 |
|
} |
435
|
2 |
|
} |
436
|
|
|
|
437
|
|
|
/** |
438
|
|
|
* @param int $timeslot |
439
|
|
|
* @return \DateTime |
440
|
|
|
*/ |
441
|
2 |
|
private function toDateTime($timeslot) |
442
|
|
|
{ |
443
|
2 |
|
$ret = clone $this->startTime; |
444
|
2 |
|
return $ret->add(new \DateInterval('PT' . (($timeslot - 1) * self::TIME_SLOT_DURATION) . 'S')); |
445
|
|
|
} |
446
|
|
|
|
447
|
|
|
/** |
448
|
|
|
* @param Solver $solver |
449
|
|
|
*/ |
450
|
2 |
|
private function saveEmployeesMeetings(Solver $solver) |
451
|
|
|
{ |
452
|
2 |
|
$employeesMeetings = $solver->getXResults(); |
453
|
2 |
|
foreach ($employeesMeetings as $eId => $employeeMeetings) { |
454
|
2 |
|
$employee = \plunner\Employee::findOrFail($eId); |
455
|
2 |
|
$employeeMeetings = collect($employeeMeetings); |
456
|
2 |
|
$employeeMeetings = $employeeMeetings->filter(function ($item) { |
457
|
2 |
|
return $item == 1; |
458
|
2 |
|
}); |
459
|
2 |
|
$employee->meetings()->attach($employeeMeetings->keys()->toArray()); |
460
|
2 |
|
} |
461
|
|
|
} |
462
|
|
|
} |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..