<?php

namespace App\Invoice;

use App\InvoiceInterface;

use App\Ramcar\FuelType;
use App\Ramcar\ServiceType;

class Fuel implements InvoiceInterface
{   
    public function check($criteria)
    {
        if ($this->getID() == $criteria->getServiceType())
            return true;

        return false;
    }
    
    public function getTemplate()
    {   
    }
    
    public function getID()
    {   
        return 'fuel';
    }

    public function compute($criteria, $stype_fees) 
    {
        $stype = $criteria->getServiceType();

        $items = [];

        
        if ($stype == $this->getID())
        {
            // check if customer vehicle has a motolite battery
            $cv = $criteria->getCustomerVehicle();
            if ($cv->hasMotoliteBattery())
                $fee = 0;
            else
                $fee = $stype_fees['service_fee'];

            $ftype = $cv->getFuelType();

            // add the service fee to items
            $qty = 1;
            $items[] = [
                'qty' => $qty,
                'title' => $this->getServiceTitle($ftype),
                'price' => $fee,
            ];

            $stype_fees_id = $this->getID() . '_fee_' . $ftype;

            switch ($ftype)
            {
                case FuelType::GAS:
                case FuelType::DIESEL:
                    $qty = 1;
                    $price = $stype_fees[$stype_fees_id];
                    $items[] = [
                        'qty' => $qty,
                        'title' => $this->getTitle($ftype),
                        'price' => $price,
                    ];

                    break;
                default:
                    $qty = 1;
                    $price = 0;
                    $items[] = [
                        'qty' => $qty,
                        'title' => $this->getTitle('Unknown'),
                        'price' => $price,
                    ];
                    break;    
            }
        }

        return $items;
    }

    protected function getTitle($fuel_type)
    {
        $title = '4L - ' . ucfirst($fuel_type);

        return $title;
    }

    protected function getServiceTitle($fuel_type)
    {
        $title = 'Service - ' . ServiceType::getName(ServiceType::EMERGENCY_REFUEL);

        return $title;
    }
}