<?php
/*
 * @Author: Jino Lacson
 * @Date: 2018-11-06 09:38:35
 * @Last Modified by: jlacson@wylog.com
 * @Last Modified time: 2018-11-06 10:57:45
 */

if (! defined('BASEPATH')) {
    exit('No direct script access allowed');
}

use app\core\utils\Response;

class Noshow_attendance_statistics extends MY_Controller
{

   /**
    * Holds datasets
    *
    * @var array
    */
    protected $datasets = [];

    /**
     * Attendus range F2
     *
     * @var array
     */
    protected $AttendusF2 = [];

    /**
     * Attendus range F4
     *
     * @var integer
     */
    protected $AttendusF4 = 0;

    /**
     * Waiting list range = G2
     *
     * @var array
     */
    protected $WaitingListG2 = [];

    /**
     * Waiting list range = G4
     *
     * @var integer
     */
    protected $WaitingListG4 = 0;

    /**
     * Grand total place of waiting,booking and extra peoples
     *
     * @var array
     */
    protected $countTotalPlace = [];

    /**
     * Grand total of invitees
     *
     * @var array
     */
    protected $countInvitees = [];

    /**
     * Initialize no of places
     *
     * @var integer
     */
    protected $totalPlace = 0;

    /**
     * Initialize total present
     *
     * @var integer
     */
    protected $totalPresent = 0;

    /**
     * Partial no show
     *
     * @var array
     */
    protected $noShowPartial = [];

    /**
     * Holds number of show
     *
     * @var array
     */
    protected $noshow = [];

    public function __construct()
    {
        $this->my_parent_controller();
        Response::handleSessionTimeout("bo");

        //load nshow_model
        $this->load->model('nshow_model');
    }

    /**
     * Validate and get merged list of Booking,Waiting and Extra people
     * else if no event schedule ID present show 404 page
     *
     * @param integer $eventId
     * @param integer $eventScheduleID
     * @return void
     * access private member
     */
    private function getAttendanceData(int $eventId, int $eventScheduleId)
    {
        //Display 404 page if eventschedule ID is not present
        if (!is_numeric($eventId) || is_null($eventId) && !is_numeric($eventScheduleId) || is_null($eventScheduleId)) {
            show_404();
        }

        //return combined records
        return $this->getAttendanceQuery($eventId, $eventScheduleId);
    }

    /**
     * Get data booking, waiting and Extra peoples
     *
     * @param integer $eventId
     * @param integer $eventScheduleID
     * @return array
     * access private member
     */
    private function getAttendanceQuery($eventId, $eventScheduleId) : array
    {
        //Booking
        $confirmed = $this->nshow_model->bookList($eventScheduleId);

        //Waiting
        $waitlist = $this->nshow_model->waitList($eventScheduleId);

        //Extra
        $extra = $this->nshow_model->extraPeople($eventScheduleId);

        //Combine lists
        return array_merge($confirmed, $waitlist, $extra);
    }

    /**
     * Check if Waiting, Booking or Extra people
     *
     * @param string $type = booking,waiting,extra
     * @param string $match = match if booking,waiting,extra
     * @return boolean
     * access private member
     */
    private function TypeIs(string $type, string $match) : bool
    {
        return $type == trim(strtolower($match));
    }

  /**
   * Compute partial no show
   *
   * @param integer $totalPresent
   * @param integer $totalPlace
   * @param string $indicator
   * @return array
   * access private member
   */
    private function computePartialNoshow(int $totalPresent,int $totalPlace, string $indicator) : array 
    {
        //holds total partial no show
        $noShowPartial = [];

        if ($totalPresent > 0) {
            if($totalPresent < $totalPlace){
               array_push($noShowPartial,$indicator);
            }
        }

        //return noshow computed partial
        return $noShowPartial;
    }
    
    /**
     * Display list of statistics by EventId and Event schedule ID
     *
     * @param integer $eventId
     * @param integer $eventScheduleId
     * @return array
     * access public member
     */
    public function loadStatistics(int $eventId, int $eventScheduleId) : array 
    {   
        //Iterate data booking list, waiting list and extra peoples
        foreach ($this->getAttendanceData($eventId, $eventScheduleId) as $key => $datasets) 
        {
            //Set no of place as totalPlace
            $this->totalPlace = (int)$datasets->no_of_place;

            //Set no show type as totalPresent
            $this->totalPresent = (int)$datasets->no_show_type;

            //Booking range cells
            if ($this->TypeIs('booking', $datasets->type)) {
                $this->AttendusF2[] = $this->totalPlace;
                $this->AttendusF4  += $this->totalPlace;
            }

            //Waiting range cells
            if ($this->TypeIs('waiting', $datasets->type)) {
                $this->WaitingListG2[] = $this->totalPlace;
                $this->WaitingListG4  += $this->totalPlace;
            }

            //Count total place
            $this->countTotalPlace[] = $this->totalPresent ??  0;

            //Compute invitees
            $this->countInvitees[] = ($this->totalPresent  - 1) == -1 ? '' : ($this->totalPresent - 1) ;

            //computes partial no show
            $this->noShowPartial[] = $this->computePartialNoshow($this->totalPresent,$this->totalPlace,1);

            //computes total no show
            $this->noshow[] = $this->totalPresent == 0 ? 1 : '';
           
        }

        //Display computed ranges
        output_to_json($this,[
            '$TotalAvailablePlace'  => $this->nshow_model->getTotalAvailableAndRemainingPlaces($eventId, $eventScheduleId)['total_available_seat'],
            '$TotalRemainingPlace'  => ($this->nshow_model->getTotalAvailableAndRemainingPlaces($eventId, $eventScheduleId)['total_available_seat'] - (count(array_filter($this->countTotalPlace)) + array_sum($this->countInvitees))),
            '$AttendusF2'           => count($this->AttendusF2),
            '$AttendusF3'           => ($this->AttendusF4 - count($this->AttendusF2)),
            '$AttendusF4'           => $this->AttendusF4,
            '$WaitingListG2'        => count($this->WaitingListG2),
            '$WaitingListG3'        => ($this->WaitingListG4 - count($this->WaitingListG2)),
            '$WaitingListG4'        => $this->WaitingListG4,
            '$PresentsH2'           => count(array_filter($this->countTotalPlace)),
            '$PresentsH3'           => array_sum($this->countInvitees),
            '$PresentsH4'           => (count(array_filter($this->countTotalPlace)) + array_sum($this->countInvitees)),
            '$AbsentsI2'            => (count($this->AttendusF2) - count(array_filter($this->countTotalPlace))),
            '$AbsentsI3'            => (($this->AttendusF4 - count($this->AttendusF2)) - array_sum($this->countInvitees)),
            '$AbsentsI4'            => ((count($this->AttendusF2) - count(array_filter($this->countTotalPlace))) + (($this->AttendusF4 - count($this->AttendusF2)) - array_sum($this->countInvitees))),
            '$NoshowPartial'        => count(array_filter($this->noShowPartial)),
            '$Noshow'               => count(array_filter($this->noshow))
        ]);
    }
}