<?php
/**
 * Created by Pensare Software.
 * User: Theo Weijmer
 * Date: 29/07/2018
 * Time: 13:14
 */

class InvoiceForecast {

    private $year;
    private $project;
    private $customer;
    private $forecast;
    private $currentYear;
    private $projectname;
    private $needInvoice;
    private $projectDetails;
    private $forecastThisYear   = 0;
    private $forecastRemaining;
    private $forecastOtherYears = 0;

    public function __construct( $project, $needInvoice, $year )
    {
        $this->project = $project;
        $this->needInvoice = $needInvoice;
        $this->year = $year;

        $this->handle();
    }

    public function getProjectDetails()
    {
        return $this->projectDetails;
    }

    public function getNeedInvoice()
    {
        return $this->needInvoice;
    }

    public function getForecastOtherYear()
    {
        return $this->forecastOtherYears;
    }

    public function getForecastRemaining()
    {
        return $this->forecastRemaining;
    }

    private function handle()
    {
        $this->setCurrentyear();

        $this->setProjectname();

        $this->setCustomer();

        $this->loopForecasts();

        $this->setForecastRemaining();

        $this->setProjectDetails();
    }

    private function setCurrentyear()
    {
        $this->currentYear = date( 'Y' );
    }

    private function setProjectname()
    {
        $this->projectname = $this->project->projectname . '(' . $this->project->projectnumber . ')';
    }

    private function setCustomer()
    {
        $this->customer = $this->project->customer->name;
    }

    private function loopForecasts()
    {
        if ( is_null( $this->project->forecasts ) ) return $this->forecastThisYear = 0;

        foreach ( $this->project->forecasts as $this->forecast )
        {
            $this->setForecastThisYear();

            $this->setForecastOtherYears();
        }
    }

    private function setForecastThisYear()
    {
        if ( $this->forecast->year == $this->year )
            $this->forecastThisYear += $this->forecast->forecastamount;
    }

    private function setForecastOtherYears()
    {
        if ( $this->forecast->year != $this->year )
            $this->forecastOtherYears += $this->forecast->forecastamount;
    }

    private function setForecastRemaining()
    {
        $this->forecastRemaining =
            $this->needInvoice - $this->forecastThisYear - $this->forecastOtherYears;
    }

    private function setProjectDetails()
    {
        $this->projectDetails = [
        	'projectnumber'		   => $this->project->projectnumber,
            'projectname'          => $this->projectname,
            'customer'             => $this->customer,
            'needInvoice'          => number_format( $this->needInvoice, 0, ',', '.' ),
            'forecastThisYear'     => number_format( $this->forecastThisYear, 0, ',', '.' ),
            'forecastOtherYears'   => number_format( $this->forecastOtherYears, 0, ',', '.' ),
            'forecastRemaining'    => number_format( $this->forecastRemaining, 0, ',', '.' ),
        ];
    }

}