<?php

namespace App\Ramcar;

use App\Entity\Battery;
use App\Entity\Promo;

class InvoiceCriteria
{
    protected $stype;
    protected $promos;

    // entries are battery and trade-in combos
    protected $entries;

    public function __construct()
    {
        $this->stype = 0;
        $this->promos = [];
        $this->entries = [];
    }

    public function setServiceType($stype)
    {
        // TODO: validate service type
        $this->stype = $stype;
        return $this;
    }

    public function getServiceType()
    {
        return $this->stype;
    }

    /*
    public function addBattery(Battery $battery, $qty = 1)
    {
        for ($i = 0; $i < $qty; $i++)
            $this->batteries[] = $battery;
        return $this;
    }

    public function getBatteries()
    {
        return $this->batteries;
    }
    */

    public function addPromo(Promo $promo)
    {
        $this->promos[] = $promo;
        return $this;
    }

    public function getPromos()
    {
        return $this->promos;
    }

    /*
    public function addTradeIn($is_motolite, $qty = 1)
    {
        // NOTE: this asumes that all the rates for trade-ins are standardized
        //       for motolite and non-motolite trade-ins

        for ($i = 0; $i < $qty; $i++)
        {
            if ($is_motolite)
                $trade_in = 'motolite';
            else
                $trade_in = 'other';

            $this->trade_ins[] = $trade_in;
        }
        return $this;
    }

    public function getTradeIns()
    {
        return $this->trade_ins;
    }
    */

    public function addEntry($battery, $trade_in, $qty)
    {
        // trade_in is null if no trade_in specified

        $entry = [
            'battery' => $battery,
            'trade_in' => $trade_in,
            'qty' => $qty
        ];

        $this->entries[] = $entry;
    }

    public function getEntries()
    {
        return $this->entries;
    }
}