<?php
   
namespace App\Http\Controllers\Main;
  
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Auth;
use App\Exports\EnforcerStatisticExport;
use App\Exports\FaultyStatisticExport;
use App\Exports\CompoundCurrentExport;
use App\Exports\CompoundBacklogExport;
use Maatwebsite\Excel\Facades\Excel;
use Carbon\Carbon;

use App\Model\Module\Compound;
use App\Model\Module\Faulty;
use App\Model\Staff;
use App\Model\StaffDetail;
use App\Model\Module\ReportEnforcer;
use App\Model\Module\ReportFaulty;
  
class ExportReport extends Controller
{
    /**
    * @return \Illuminate\Support\Collection
    */
    public function export_compound_enforcer($year,$jenis,$jbkod){

        $keping = array(); $jumlah = array(); 
        $data_report = ReportEnforcer::where('year', $year)->where('jbkod', $jbkod)->get();

        if(count($data_report) > 0){
            foreach ($data_report as $key => $d) {
                $st = StaffDetail::find($d->staff_detail_id);

                array_push($jumlah, array(
                    'index' => $key+1,
                    'name' => $st->full_name,
                    'jan' => $d->jan['jumlah'],
                    'feb' => $d->feb['jumlah'],
                    'mac' => $d->mac['jumlah'],
                    'apr' => $d->apr['jumlah'],
                    'mei' => $d->mei['jumlah'],
                    'jun' => $d->jun['jumlah'],
                    'july' => $d->july['jumlah'],
                    'ogos' => $d->ogos['jumlah'],
                    'sept' => $d->sept['jumlah'],
                    'okt' => $d->okt['jumlah'],
                    'nov' => $d->nov['jumlah'],
                    'dis' => $d->dis['jumlah'],
                    'total' => $d->total['jumlah'],
                ));

                array_push($keping, array(
                    'index' => $key+1,
                    'name' => $st->full_name,
                    'jan' => $d->jan['keping'],
                    'feb' => $d->feb['keping'],
                    'mac' => $d->mac['keping'],
                    'apr' => $d->apr['keping'],
                    'mei' => $d->mei['keping'],
                    'jun' => $d->jun['keping'],
                    'july' => $d->july['keping'],
                    'ogos' => $d->ogos['keping'],
                    'sept' => $d->sept['keping'],
                    'okt' => $d->okt['keping'],
                    'nov' => $d->nov['keping'],
                    'dis' => $d->dis['keping'],
                    'total' => $d->total['keping'],
                ));
            }
        }


        $filename = 'Statistik_Pengeluaran_kompaun_bulanan';
        return Excel::download(new EnforcerStatisticExport($keping,$jumlah,$year), $filename.'.xlsx');
    }

    public function export_compound_faulty($start_date,$end_date,$jabatan){

        $jan = array(); $feb = array(); $mac = array(); $apr = array(); $mei = array(); $jun = array();
        $july = array(); $ogos = array(); $sept = array(); $okt = array(); $nov = array(); $dis = array();
        $all = array();

        // All Faulty
        $data_sketr = ReportFaulty::where('start_date', $start_date)->where('end_date', $end_date)->where('month', 'All')->where('jbkod', $jabatan)->groupBy('sketr')->get();

        if(count($data_sketr) > 0){
            $i = 0;
            foreach ($data_sketr as $key => $d) {

                $jumlah_kompaun_keluar = 0; $amaun_kompaun_rm = 0;
                $jumlah_bayar = 0; $amaun_bayar_rm = 0;
                $jumlah_kompaun_belum_bayar = 0; $amaun_tunggakan_rm = 0;
                $kompaun_batal = 0; $amaun_batal_rm = 0;
                $kompaun_kurang = 0; $amaun_kurang_rm = 0; 

                $name = '';
                $ft = Faulty::where('sketr', $d->sketr)->first();
                if(strpos($ft->nama, '(RM500)') !== false){
                    $name = str_replace("(RM500)","",$ft->nama);
                }else if(strpos($ft->nama, '(RM100)') !== false){
                    $name = str_replace("(RM100)","",$ft->nama);
                }else if(strpos($ft->nama, '(RM50)') !== false){
                    $name = str_replace("(RM50)","",$ft->nama);
                }else if(strpos($ft->nama, '(RM250)') !== false){
                    $name = str_replace("(RM250)","",$ft->nama);
                }else {
                    $name = $ft->nama;
                }

                $data_report = ReportFaulty::where('start_date', $start_date)->where('end_date', $end_date)->where('month', 'All')->where('jbkod', $jabatan)->where('sketr', $d->sketr)->get();

                if(count($data_report) > 0){
                    foreach ($data_report as $key => $r) {
                                    
                    if ($r->amaun_kompaun_rm == ""){
                        $temp_amount_rm = 0;
                    }else {
                        $temp_amount_rm = $r->amaun_kompaun_rm;
                    }

                    if ($r->jumlah_kompaun_keluar == ""){
                        $temp_kompaun_keluar = 0;
                    }else {
                        $temp_kompaun_keluar = $r->jumlah_kompaun_keluar;
                    }

                    if ($r->jumlah_bayar == ""){
                        $temp_jumlah_bayar = 0;
                    }else {
                        $temp_jumlah_bayar = $r->jumlah_bayar;
                    }

                    if ($r->amaun_bayar_rm == ""){
                        $temp_amaun_bayar = 0;
                    }else {
                        $temp_amaun_bayar = $r->amaun_bayar_rm;
                    }

                    if ($r->jumlah_kompaun_belum_bayar == ""){
                        $temp_kompaun_belum_bayar = 0;
                    }else {
                        $temp_kompaun_belum_bayar = $r->jumlah_kompaun_belum_bayar;
                    }

                    if ($r->amaun_tunggakan_rm == ""){
                        $temp_tunggakan = 0;
                    }else {
                        $temp_tunggakan = $r->amaun_tunggakan_rm;
                    }

                    if ($r->kompaun_batal == ""){
                        $temp_kompaun_batal = 0;
                    }else {
                        $temp_kompaun_batal = $r->kompaun_batal;
                    }

                    if ($r->amaun_batal_rm == ""){
                        $temp_amaun_batal = 0;
                    }else {
                        $temp_amaun_batal = $r->amaun_batal_rm;
                    }


                    if ($r->kompaun_kurang == ""){
                        $temp_kompaun_kurang = 0;
                    }else {
                        $temp_kompaun_kurang = $r->kompaun_kurang;
                    }

                    if ($r->amaun_kurang_rm == ""){
                        $temp_amaun_kurang = 0;
                    }else {
                        $temp_amaun_kurang = $r->amaun_kurang_rm;
                    }

                    $jumlah_kompaun_keluar = $jumlah_kompaun_keluar + $temp_kompaun_keluar;
                    $amaun_kompaun_rm = $amaun_kompaun_rm + $temp_amount_rm;
                    $jumlah_bayar = $jumlah_bayar + $temp_jumlah_bayar;
                    $amaun_bayar_rm = $amaun_bayar_rm + $temp_amaun_bayar;
                    $jumlah_kompaun_belum_bayar = $jumlah_kompaun_belum_bayar + $temp_kompaun_belum_bayar;
                    $amaun_tunggakan_rm = $amaun_tunggakan_rm + $temp_tunggakan;
                    $kompaun_batal = $kompaun_batal + $temp_kompaun_batal;
                    $amaun_batal_rm = $amaun_batal_rm + $temp_amaun_batal;
                    $kompaun_kurang = $kompaun_kurang + $temp_kompaun_kurang;
                    $amaun_kurang_rm = $amaun_kurang_rm + $temp_amaun_kurang;

                    }
                }

                array_push($all, array(
                    'index' => $i+1,
                    'name' => strtoupper($name.' - '.$ft->sketr),
                    'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                    'amaun_kompaun' => $amaun_kompaun_rm,
                    'jumlah_byr' => $jumlah_bayar,
                    'amaun_byr' => $amaun_bayar_rm,
                    'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                    'amaun_tunggakan' => $amaun_tunggakan_rm,
                    'kompaun_batal' => $kompaun_batal,
                    'amaun_batal' => $amaun_batal_rm,
                    'kompaun_kurang' => $kompaun_kurang,
                    'amaun_kurang' => $amaun_kurang_rm,
                ));
            }
        }


        for($m=1; $m<=12; ++$m){
            $month[] = date('m', mktime(0, 0, 0, $m, 1));
        }

        foreach ($month as $key => $m) {
            // Calculate by sketr
            $data_sketrb = ReportFaulty::where('start_date', $start_date)->where('end_date', $end_date)->where('month', $m)->where('jbkod', $jabatan)->groupBy('sketr')->get();

            if(count($data_sketrb) > 0){
                $i = 0;
                foreach ($data_sketrb as $key => $d) {

                    $jumlah_kompaun_keluar = 0; $amaun_kompaun_rm = 0;
                    $jumlah_bayar = 0; $amaun_bayar_rm = 0;
                    $jumlah_kompaun_belum_bayar = 0; $amaun_tunggakan_rm = 0;
                    $kompaun_batal = 0; $amaun_batal_rm = 0;
                    $kompaun_kurang = 0; $amaun_kurang_rm = 0; 

                    $name = '';
                    $ft = Faulty::where('sketr', $d->sketr)->first();
                    if(strpos($ft->nama, '(RM500)') !== false){
                        $name = str_replace("(RM500)","",$ft->nama);
                    }else if(strpos($ft->nama, '(RM100)') !== false){
                        $name = str_replace("(RM100)","",$ft->nama);
                    }else if(strpos($ft->nama, '(RM50)') !== false){
                        $name = str_replace("(RM50)","",$ft->nama);
                    }else if(strpos($ft->nama, '(RM250)') !== false){
                        $name = str_replace("(RM250)","",$ft->nama);
                    }else {
                        $name = $ft->nama;
                    }

                    $data_reportb = ReportFaulty::where('start_date', $start_date)->where('end_date', $end_date)->where('month', 'All')->where('jbkod', $jabatan)->where('sketr', $d->sketr)->get();

                    if(count($data_reportb) > 0){
                        foreach ($data_reportb as $key => $r) {

                                    if ($r->amaun_kompaun_rm == ""){
                                        $temp_amount_rm = 0;
                                    }else {
                                        $temp_amount_rm = $r->amaun_kompaun_rm;
                                    }

                                    if ($r->jumlah_kompaun_keluar == ""){
                                        $temp_kompaun_keluar = 0;
                                    }else {
                                        $temp_kompaun_keluar = $r->jumlah_kompaun_keluar;
                                    }

                                    if ($r->jumlah_bayar == ""){
                                        $temp_jumlah_bayar = 0;
                                    }else {
                                        $temp_jumlah_bayar = $r->jumlah_bayar;
                                    }

                                    if ($r->amaun_bayar_rm == ""){
                                        $temp_amaun_bayar = 0;
                                    }else {
                                        $temp_amaun_bayar = $r->amaun_bayar_rm;
                                    }

                                    if ($r->jumlah_kompaun_belum_bayar == ""){
                                        $temp_kompaun_belum_bayar = 0;
                                    }else {
                                        $temp_kompaun_belum_bayar = $r->jumlah_kompaun_belum_bayar;
                                    }

                                    if ($r->amaun_tunggakan_rm == ""){
                                        $temp_tunggakan = 0;
                                    }else {
                                        $temp_tunggakan = $r->amaun_tunggakan_rm;
                                    }

                                    if ($r->kompaun_batal == ""){
                                        $temp_kompaun_batal = 0;
                                    }else {
                                        $temp_kompaun_batal = $r->kompaun_batal;
                                    }

                                    if ($r->amaun_batal_rm == ""){
                                        $temp_amaun_batal = 0;
                                    }else {
                                        $temp_amaun_batal = $r->amaun_batal_rm;
                                    }


                                    if ($r->kompaun_kurang == ""){
                                        $temp_kompaun_kurang = 0;
                                    }else {
                                        $temp_kompaun_kurang = $r->kompaun_kurang;
                                    }

                                    if ($r->amaun_kurang_rm == ""){
                                        $temp_amaun_kurang = 0;
                                    }else {
                                        $temp_amaun_kurang = $r->amaun_kurang_rm;
                                    }

                                    $jumlah_kompaun_keluar = $jumlah_kompaun_keluar + $temp_kompaun_keluar;
                                    $amaun_kompaun_rm = $amaun_kompaun_rm + $temp_amount_rm;
                                    $jumlah_bayar = $jumlah_bayar + $temp_jumlah_bayar;
                                    $amaun_bayar_rm = $amaun_bayar_rm + $temp_amaun_bayar;
                                    $jumlah_kompaun_belum_bayar = $jumlah_kompaun_belum_bayar + $temp_kompaun_belum_bayar;
                                    $amaun_tunggakan_rm = $amaun_tunggakan_rm + $temp_tunggakan;
                                    $kompaun_batal = $kompaun_batal + $temp_kompaun_batal;
                                    $amaun_batal_rm = $amaun_batal_rm + $temp_amaun_batal;
                                    $kompaun_kurang = $kompaun_kurang + $temp_kompaun_kurang;
                                    $amaun_kurang_rm = $amaun_kurang_rm + $temp_amaun_kurang;

                        }
                    }

                    if($m == '01'){
                        array_push($jan, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '02'){
                        array_push($feb, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '03'){
                        array_push($mac, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '04'){
                        array_push($apr, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '05'){
                        array_push($mei, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '06'){ 
                        array_push($jun, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '07'){
                        array_push($july, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '08'){
                        array_push($ogos, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '09'){
                        array_push($sept, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '10'){
                        array_push($okt, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '11'){
                        array_push($nov, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }else if($m == '12'){
                        array_push($dis, array(
                            'index' => $i+1,
                            'name' => strtoupper($name.' - '.$ft->sketr),
                            'jum_kompaun_keluar' => $jumlah_kompaun_keluar,
                            'amaun_kompaun' => $amaun_kompaun_rm,
                            'jumlah_byr' => $jumlah_bayar,
                            'amaun_byr' => $amaun_bayar_rm,
                            'jum_kompaun_belum_byr' => $jumlah_kompaun_belum_bayar,
                            'amaun_tunggakan' => $amaun_tunggakan_rm,
                            'kompaun_batal' => $kompaun_batal,
                            'amaun_batal' => $amaun_batal_rm,
                            'kompaun_kurang' => $kompaun_kurang,
                            'amaun_kurang' => $amaun_kurang_rm,
                        ));
                    }
                    
                }
            }
        }

        $filename = 'Statistik_Pengeluaran_kompaun_mengikut_kesalahan';
        return Excel::download(new FaultyStatisticExport($jan,$feb,$mac,$apr,$mei,$jun,$july,$ogos,$sept,$okt,$nov,$dis,$all,$start_date,$end_date), $filename.'.xlsx');
    }


    public function export_compound_current($start_year,$end_year,$budget1,$budget2,$jbkod){
        $url = 'https://mdch.sipadu.my/api/get/current-compound?start_year='.$start_year.'&end_year='.$end_year.'&budget1='.$budget1.'&budget2='.$budget2.'&jabatan='.$jbkod;

        $year1= date('Y', strtotime($start_year));
        $year2= date('Y', strtotime($end_year));

        $client = new \GuzzleHttp\Client();
        $request = $client->get($url);
        $response = json_decode($request->getBody());

        $data = array();
        foreach ($response->data as $key => $d) {
            array_push($data, array(
                'bulan' => $d->month,
                'budget1' => $d->budget1,
                'kompaun_keluar1' => $d->kompaun_keluar1,
                'kompaun_kurang1' => $d->kompaun_kurang1,
                'kutipan_bulanan1' => $d->kutipan_bulanan1,
                'kutipan_terkumpul1' => $d->kutipan_terkumpul1,
                'kutipan1' => $d->kutipan1,
                'terkumpul1' => $d->terkumpul1,
                'budget2' => $d->budget2,
                'kompaun_keluar2' => $d->kompaun_keluar2,
                'kompaun_kurang2' => $d->kompaun_kurang2,
                'kutipan_bulanan2' => $d->kutipan_bulanan2,
                'kutipan_terkumpul2' => $d->kutipan_terkumpul2,
                'kutipan2' => $d->kutipan2,
                'terkumpul2' => $d->terkumpul2,
            ));
        }

        $filename = 'Laporan_Perbezaan_kutipan_Kompaun_Semasa';
        return Excel::download(new CompoundCurrentExport($data,$year1,$year2,$end_year), $filename.'.xlsx');
    }

    public function jumlah_kopmaun_tahunan($year, $jabatan)
    {
        $date = Carbon::createFromDate($year, 01, 01);
        $startOfYear = $date->copy()->startOfYear();
        $endOfYear = $date->copy()->endOfYear();  

        //list of compound 'Belum Bayar' in the year 2019        
        $compound = Compound::whereBetween('created_at', array($startOfYear, $endOfYear))->where('jbkod', $jabatan)->get();

        $jumlah_kompaun = 0;
        $keping_kompaun = 0;
        $kpd = array();

        foreach($compound as $c)
        {
            
            $jumlah_kompaun += $c->jumlah_asal_kompaun;
            $keping_kompaun += 1;
            $kpd[] = $c->kpd;
        }

        $result = array();
        array_push($result, array(
            'jumlah_kompaun' => $jumlah_kompaun,
            'keping_kompaun' => $keping_kompaun,
            'kpd' => $kpd,
        ));

        return json_encode($result);
    }

    //Calculate compound with status 'Berbayar'
    public function kompaun_bayar_by_bulan($year, $month, $jabatan)
    {
        $monthly = Carbon::createFromDate($year, $month, 1);
        $startOfMonth = $monthly->copy()->startOfMonth();
        $endOfMonth = $monthly->copy()->endOfMonth();
        $kpd = array();

        $monthly_collection = Compound::whereBetween('created_at', array($startOfMonth, $endOfMonth))->where('jbkod', $jabatan)->where('status', 'Berbayar')->get();

        // dd($monthly_collection);
        
        $jumlah_bayar = 0;
        $keping_bayar = 0;
        $jumlah_asal = 0;
        $jumlah_kurang = 0;
        $temp_jumlah_kurang = 0;
        $kpd = array();


        foreach($monthly_collection as $k)
        {
            if((!($k->jumlah_kemaskini_kompaun == '')))
            {
                $temp_jumlah_kurang = $k->jumlah_asal_kompaun - $k->jumlah_kemaskini_kompaun;
            }

            $keping_bayar += 1; 
            $jumlah_asal += $k->jumlah_asal_kompaun;
            $jumlah_bayar += $k->amount_payment;
            $jumlah_kurang += $temp_jumlah_kurang;

        } 

        $result = array();
        array_push($result, array(
            'jumlah_berbayar' => $jumlah_bayar,
            'keping_berbayar' => $keping_bayar,
            'jumlah_pengurangan' => $jumlah_kurang,
            'jumlah_asal_berbayar' => $jumlah_asal,

        ));

        return json_encode($result);
    }

    public function berbayar_terkumpul($value1, $value2)
    {
        return $value1 += $value2;
    }

    public function baki_tunggakan($baki_tertunggak, $bayar_bulanan, $jumlah_kurang)
    {
        return $baki_tertunggak - $bayar_bulanan - $jumlah_kurang;
    }

    public function keping_tunggakan($keping_tertunggak, $keping_bulanan)
    {
        return $keping_tertunggak -= $keping_bulanan;
    }

    public function peratus_kutipan($jumlah_tertunggak, $berbayar_bulanan)
    {
        return $berbayar_bulanan /= $jumlah_tertunggak;
    }

    public function peratus_terkumpul($jumlah_tertunggak, $berbayar_terkumpul)
    {
        return $berbayar_terkumpul /= $jumlah_tertunggak;
    }

    public function pengurangan_terkumpul($total_pengurangan, $pengurangan_bulanan)
    {
        return $total_pengurangan += $pengurangan_bulanan;
    }

    public function export_compound_backlog($year, $jabatan)
    {
        $looping_month = array();

        // search kompaun tertunggak a year before
        $tertunggak = json_decode($this->jumlah_kopmaun_tahunan($year, $jabatan));  

        //declaring required variables
        $kutipan_terkumpul = 0;
        $tunggakan_terkumpul = 0;
        $pengurangan_terkumpul = 0;
        $baki_tunggakan = 0;
        $keping_tunggakan = 0;
        $baki_tunggakan = $tertunggak[0]->jumlah_kompaun;
        $keping_tunggakan = $tertunggak[0]->keping_kompaun;
        $nama_bulan = array('JAN', 'FEB', 'MAC', 'APR', 'MEI', 'JUN', 'JUL', 'OGOS', 'SEP', 'OKT', 'NOV', 'DIS');
        $kpd_bulan = array();

        for( $bulan = 1; $bulan < 13; $bulan++)
        {
            //calling required functions
            $bayar_bulanan = json_decode($this->kompaun_bayar_by_bulan($year, $bulan,$jabatan));
            $kutipan_terkumpul = $this->berbayar_terkumpul($kutipan_terkumpul, $bayar_bulanan[0]->jumlah_berbayar);
            $baki_tunggakan = $this->baki_tunggakan($baki_tunggakan, $bayar_bulanan[0]->jumlah_berbayar, $bayar_bulanan[0]->jumlah_pengurangan);
            $keping_tunggakan = $this->keping_tunggakan($keping_tunggakan, $bayar_bulanan[0]->keping_berbayar);
            $peratus_kutipan = $this->peratus_kutipan($tertunggak[0]->jumlah_kompaun, $bayar_bulanan[0]->jumlah_berbayar);
            $peratus_terkumpul = $this->peratus_terkumpul($tertunggak[0]->jumlah_kompaun, $kutipan_terkumpul);
            $pengurangan_terkumpul = $this->pengurangan_terkumpul($pengurangan_terkumpul, $bayar_bulanan[0]->jumlah_pengurangan);

            // foreach($bayar_bulanan[0]->kpd as $bb)
            // {
            //     dd($bb);
            // }

            array_push($looping_month, array(
                'bulan' => $nama_bulan[$bulan-1],                                       //A
                'space' => '',                                                          //B
                'kutipan_bulanan(RM)' => $bayar_bulanan[0]->jumlah_berbayar,            //C
                'jumlah_kompaun_bayar' => $bayar_bulanan[0]->keping_berbayar,           //D
                'kutipan_terkumpul(RM)' => $kutipan_terkumpul,                          //E
                'baki_tunggakan(RM)' => $baki_tunggakan,                                //F
                'baki_belum_bayar' => $keping_tunggakan,                                //G
                'jumlah_kurang(RM)' => $bayar_bulanan[0]->jumlah_pengurangan,           //H
                '%_kutipan' => number_format((float)$peratus_kutipan, 3, '.', ''),      //I
                '%_terkumpul' => number_format((float)$peratus_terkumpul, 3, '.', ''),  //J
            ));
        }        

        $kompaun_j = $tertunggak[0]->jumlah_kompaun;
        $kompaun_k = $tertunggak[0]->keping_kompaun;

        $filename = 'Laporan_Tunggakan_Tahunan_(Tahun_:_'.$year.')';
        return Excel::download(new CompoundBacklogExport($looping_month, $year, $kompaun_j, $kompaun_k), $filename.'.xlsx');        
    }
}