<?php
/**
 * Created by Pensare Software.
 * User: Theo Weijmer
 * Date: 20/02/2018
 * Time: 16:49
 */

class Recapprojects {

    private $ci;
    private $index;
    private $project;
    private $projects;
    private $employeeHours;
    private $invoicedYears = [];
    private $projectTotals;
    private $employeeBudget;
    private $uniqueEmployee;
    private $uniqueEmployees;
    private $projectEmployeeDetail;
    private $projectEmployeeDetails;

    public function __construct()
    {
        $this->ci =& get_instance();

        $this->ci->load->Model( 'projects/Invoices_model' );

        $this->handle();
    }

    public function getProjects()
    {
        return $this->projects;
    }

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

        $this->setUniqueEmployees();

        $this->loopProjects();

        $this->setInvoicedYears();

        $this->loopProjectsForInvoicedYears();
    }

    private function setProjects()
    {
        $this->projects = Project::getActiveProjects()->toArray();
    }

    private function setUniqueEmployees()
    {
        $this->uniqueEmployees = Projectemployee::getUniqueProjectEmployees();
    }

    private function loopProjects()
    {
        $this->index = 0;
        foreach ( $this->projects as $this->project )
        {
            $this->projectTotals = 0;

            $this->setProjectEmployeeDetails();

            $this->loopUniqueEmployees();

            $this->setBudget();

            $this->setProjectCosts();

            $this->setBudgetAvailable();

            $this->setSaldo();

            $this->setInvoiced();

            $this->setWorkInProgress();

            $this->index ++;
        }
    }

    private function setProjectEmployeeDetails()
    {
        $this->projectEmployeeDetails =
            Projectemployee::getProjectemployeeDetailsPerProject( $this->project['id'] );
    }

    private function loopUniqueEmployees()
    {
        foreach ( $this->uniqueEmployees as $this->uniqueEmployee )
        {
            $this->setProjectEmployeeDetail();

            $this->setEmployeeBudget();

            $this->setEmployeeHours();

            $this->setEmployeeDetails();

            $this->setProjectTotals();
        }
    }

    private function setProjectEmployeeDetail()
    {
        foreach ( $this->projectEmployeeDetails as $this->projectEmployeeDetail )
        {
            if ( $this->uniqueEmployee->id == $this->projectEmployeeDetail->id ) return;
        }

        $this->projectEmployeeDetail = FALSE;
    }

    private function setEmployeeBudget()
    {
        $this->employeeBudget =
            is_null( $this->projectEmployeeDetail['budget'] ) ? 0 : $this->projectEmployeeDetail['budget'];
    }

    private function setEmployeeHours()
    {
        $this->employeeHours =
            $this->projectEmployeeDetail ? $this->projectEmployeeDetail->hours : 0;
    }

    private function setEmployeeDetails()
    {
        $this->projects[ $this->index ]['employees'][] = [
            'id'             => $this->uniqueEmployee->id,
            'fullname'       => $this->uniqueEmployee->fullname,
            'hours'          => $this->employeeHours,
            'revenues'       => $this->projectEmployeeDetail ? $this->projectEmployeeDetail->revenues : 0,
            'budget'         => $this->employeeBudget,
            'availableHours' => $this->employeeBudget - $this->employeeHours
        ];
    }

    private function setProjectTotals()
    {
        if ( ! isset( $this->projects[ $this->index ]['projectHours'] ) )
            $this->projects[ $this->index ]['projectHours'] = 0;
        if ( ! isset( $this->projects[ $this->index ]['projectEuros'] ) )
            $this->projects[ $this->index ]['projectEuros'] = 0;
        if ( ! isset( $this->projects[ $this->index ]['hoursAvailable'] ) )
            $this->projects[ $this->index ]['hoursAvailable'] = 0;

        $this->projects[ $this->index ]['projectHours'] +=
            $this->projectEmployeeDetail ? $this->projectEmployeeDetail->hours : 0;
        $this->projects[ $this->index ]['projectEuros'] +=
            $this->projectEmployeeDetail ? $this->projectEmployeeDetail->revenues : 0;
        $this->projects[ $this->index ]['hoursAvailable'] +=
            $this->employeeBudget - $this->employeeHours;
    }

    private function setBudget()
    {
        $this->projects[ $this->index ]['budget'] =
            round( ( $this->projects[ $this->index ]['own_revenue'] + $this->projects[ $this->index ]['other_revenue'] ), 0 );
    }

    private function setProjectCosts()
    {
        $this->projects[ $this->index ]['projectcosts'] =
            Projectcost::getCostsPerPerProject( $this->projects[ $this->index ]['id'] );
    }

    private function setBudgetAvailable()
    {
        $this->projects[ $this->index ]['budgetAvailable'] =
            $this->projects[ $this->index ]['budget'] - $this->projects[ $this->index ]['projectcosts'];
    }

    private function setSaldo()
    {
        $this->projects[ $this->index ]['saldo'] =
            $this->projects[ $this->index ]['budgetAvailable'] - $this->projects[ $this->index ]['projectEuros'];
    }

    private function setInvoiced()
    {
        $invoiced =
            $this->ci->Invoices_model->getInvoicedPerYearPerProject( $this->projects[ $this->index ]['id'] );

        foreach ( $invoiced ? $invoiced : [] as $invoice )
        {
            $this->projects[ $this->index ]['invoiced'][] = [
                'year'     => $invoice->invoiceyear,
                'invoiced' => $invoice->invoiced
            ];

            $this->setTotalInvoiced( $invoice->invoiced );
        }

        if ( ! isset( $this->projects[ $this->index ]['invoiced'] ) )
        {
            $this->projects[ $this->index ]['invoiced'] = [];
            $this->projects[ $this->index ]['totalInvoiced'] = 0;
        }
    }

    private function setTotalInvoiced( $invoiced )
    {
        if ( ! isset( $this->projects[ $this->index ]['totalInvoiced'] ) )
            $this->projects[ $this->index ]['totalInvoiced'] = 0;

        $this->projects[ $this->index ]['totalInvoiced'] += $invoiced;
    }

    private function setWorkInProgress()
    {
        $this->projects[ $this->index ]['workInProgress'] =
            $this->projects[ $this->index ]['projectEuros'] +
            $this->projects[ $this->index ]['projectcosts'] -
            $this->projects[ $this->index ]['totalInvoiced'];

        if( $this->projects[ $this->index ]['workInProgress']  < 0 )
            $this->projects[ $this->index ]['workInProgress']  = 0;
    }

    private function setInvoicedYears()
    {
        foreach ( $this->projects as $this->project )
        {
            foreach ( $this->project['invoiced'] as $year )
            {
                if ( in_array( $year['year'], $this->invoicedYears ) ) continue;

                array_push( $this->invoicedYears, $year['year'] );
            }
        }
    }

    private function loopProjectsForInvoicedYears()
    {
        $this->index = 0;

        foreach ( $this->projects as $this->project )
        {
            foreach ( $this->invoicedYears as $invoiceYear )
            {
                $hasYear = FALSE;
                foreach ( $this->project['invoiced'] as $year )
                {
                    if ( $invoiceYear == $year['year'] ) $hasYear = TRUE;
                }

                if ( ! $hasYear ) $this->projects[ $this->index ]['invoiced'][] = [
                    'year'     => $invoiceYear,
                    'invoiced' => 0
                ];
            }
            usort( $this->projects[ $this->index ]['invoiced'], function ( $a, $b ) {
                return $a['year'] - $b['year'];
            } );
            $this->index ++;
        }
    }
}