<?php
/**
 * Created by Pensare Software.
 * User: Theo Weijmer
 * Date: 23/01/2018
 * Time: 15:58
 */


class Invoice extends BaseModel {

    public function project()
    {
        return $this->belongsTo( 'Project' );
    }

    public function payments()
    {
        return $this->hasMany( 'Payment' );
    }

    public function vat()
    {
        return $this->belongsTo( 'Vat' );
    }

    public static function invoicePerYear( $projectID, $year, $thatYear = TRUE )
    {
        $invoices = Invoice::selectRAW( 'SUM(invoiceamount * ( 1 +(vatrate / 100))) AS invoicetotal' )
            ->join( 'vats', 'vats.id', '=', 'invoices.vat_id' )
            ->whereProjectId( $projectID );

        if ( $thatYear )
        {
            $invoices = $invoices->whereRaw( "YEAR(invoicedate) = {$year}" );
        }
        else
        {
            $invoices = $invoices->whereRaw( "YEAR(invoicedate) != {$year}" );
        }

        if ( $invoices->count() == 0 ) return 0;

        $invoices = $invoices->first();

        return $invoices->invoicetotal;
    }

    public static function saveInvoice( $invoiceID, $invoice )
    {
        $invoice = (array) $invoice;

        if ( $invoiceID == 0 )
        {
            $invoice = Invoice::create( $invoice );
            $invoiceID = $invoice['id'];
        }
        else
        {
            Invoice::whereId( $invoiceID )->update( $invoice );
        }

        return $invoiceID;
    }

	public static function getInvoiced( $year, $orderType='invoicedate', $orderDirection='DESC' )
	{
		$invoiced = Invoice::selectRaw('invoicenumber, PRJ.projectname, projectnumber, CUS.name, invoicedate, CUS.name, ROUND(invoiceamount, 0) AS invoiceamount')
			->join('projects AS PRJ', 'PRJ.id', '=', 'invoices.project_id')
			->join('customers AS CUS', 'CUS.id', '=', 'PRJ.customer_id')
			->whereRaw("DATE_FORMAT(invoicedate, '%Y') = {$year}")
			->orderBy($orderType, $orderDirection)
			->get();

		return $invoiced;
    }

    public static function getInvoicedPerYearPerProject($projectID)
    {
        $invoiced = Invoice::selectRaw('ROUND(COALESCE(SUM(invoiceamount), 0), 0) AS invoiced, YEAR(invoicedate) AS invoiceyear')
            ->where('project_id', $projectID)
            ->groupByRaw('YEAR(invoicedate)')
            ->orderByRaw('YEAR(invoicedate)')
            ->get();

        return $invoiced;
    }

    public static function getTotalsOutstandingPerProject($archive = true)
    {
        $sql = "
            SELECT
                PRJ.id,
                projectnumber,
                projectname,
                SUM(invoiced) AS invoiced,
                SUM(payment) AS payment,
                revenues,
                costs,
                COALESCE(payedcosts, 0) AS payedcosts
            FROM (
                SELECT
                    project_id,
                    ROUND(SUM(invoiceamount * (1 + (vatrate / 100))), 0) AS invoiced,
                    payment
                FROM
                    invoices INV
                    JOIN vats VAT ON VAT.id = INV.vat_id
                    LEFT JOIN (
                        SELECT
                            ROUND(COALESCE(SUM(paymentamount), 0), 0) AS payment,
                            invoice_id
                        FROM
                            payments
                        GROUP BY
                            invoice_id) AS Q1 ON INV.id = Q1.invoice_id
                    GROUP BY
                        INV.id) Q2
                JOIN projects PRJ ON PRJ.id = Q2.project_id
                JOIN (
                    SELECT
                        ROUND((own_revenue + other_revenue + costs) * (1 + (vatrate / 100)), 0) revenues,
                        ROUND(costs * (1 + (vatrate / 100)), 0) costs,
                        OFF.project_id
                    FROM
                        offers OFF
                        JOIN projects PRJ ON PRJ.id = OFF.project_id
                        JOIN vats VAT ON VAT.id = PRJ.vat_id) Q3 ON Q3.project_id = PRJ.id
                LEFT JOIN (
                    SELECT
                        SUM(costs) AS payedcosts,
                        project_id
                    FROM
                        projectcosts
                    GROUP BY
                        project_id) Q4 ON Q4.project_id = PRJ.id ";

        if ($archive === false) {
            $sql .= "WHERE PRJ.archive = 'F' ";
        }

        $sql .= "GROUP BY PRJ.id";

        $db = \Config\Database::connect();
        return $db->query($sql)->getResult();
    }
}