<?php
namespace App\Traits;

use App\SingleSeat;
use DateTime;
use Request;

trait CulturecardTrait
{
    protected function cultureCardConcessionUsed($card){
        return $card->conc_ticket_event_id != null;
    }

    protected function cultureCardConcessionAvailableOnACard($user){
        $cards = $user->culturecard_user()->get();

        foreach($cards as $card){
            $card = $card->culturecard()->first();
            if($this->cultureCardExpired($card) && !$this->cultureCardConcessionUsed($card))
                return true;
        }


        return false;
    }

    public function verifyCultureCard($event, $user, $amountTicketsToBuy)
    {
        if ($amountTicketsToBuy > 2) return false;


        //check whether user has a culture card
        if (count($user->culturecard_user()->get()) <= 0) {
            return false;
        }

        //culture card still valid
        $activeCultureCard = $user->culturecard_user()->get();

        $verified = false;
        $amountPossibleToBuy = 0;
        foreach($activeCultureCard as $singleCultureCard){
            $amountPossibleToBuy += $this->getAmountOfPossibleTickets($singleCultureCard->culturecard, $event);
        }

        return $amountPossibleToBuy >= $amountTicketsToBuy;
    }

    protected function getCultureCardWithConsessionAvailable($user){
        $cards = $user->culturecard_user()->get();

        foreach($cards as $card){
            $card = $card->culturecard()->first();
            if($this->cultureCardExpired($card) && !$this->cultureCardConcessionUsed($card))
                return $card;
        }

        return false;
    }

    protected function getAmountOfPossibleTickets($activeCultureCard, $event)
    {
        if(!$this->verifySingleCultureCard($activeCultureCard, 1, $event)) return 0;

        //check whether user has bought tickets of this event with culturecard already
        $ticketsThisEventBoughtWithCultureCard = 0;
        foreach ($activeCultureCard->culturecard_ticket()->get() as $ticket) {
            if ( $ticket->singleSeat()->first() == null || $event["event_id"] == $ticket->singleSeat()->first()->seat()->first()->event_id) {
                $ticketsThisEventBoughtWithCultureCard++;
            }
        }

        $max = 2-$ticketsThisEventBoughtWithCultureCard;


        //check whether user has enough free cards left
        $amountAlreadyBought = $activeCultureCard->get_amount_bought_tickets();
        return min($max, 5-$amountAlreadyBought);
    }

    protected function verifySingleCultureCard($activeCultureCard, $amountTicketsToBuy, $event)
    {
        $now = new DateTime();
        $cardValidUntil = DateTime::createFromFormat('Y-m-d', $activeCultureCard->renewal_date);
        if ($now > $cardValidUntil) {
            return false;
        }


        //check whether user has enough free cards left
        $amountAlreadyBought = $activeCultureCard->get_amount_bought_tickets();
        if ($amountAlreadyBought + $amountTicketsToBuy > 5) {
            return false;
        }

        //check whether user has bought tickets of this event with culturecard already
        $ticketsThisEventBoughtWithCultureCard = 0;
        foreach ($activeCultureCard->culturecard_ticket()->get() as $ticket) {
            if ( $ticket->singleSeat()->first() == null || $event["event_id"] == $ticket->singleSeat()->first()->seat()->first()->event_id) {
                $ticketsThisEventBoughtWithCultureCard++;
            }
        }
        if ($ticketsThisEventBoughtWithCultureCard + $amountTicketsToBuy > 2) {
            return false;
        }

        return true;
    }


    private function cultureCardExpired($card){
        $now = new DateTime();
        $cardValidUntil = DateTime::createFromFormat('Y-m-d', $card->renewal_date);
        return $now <= $cardValidUntil;
    }
}