<?php

namespace App\Http\Controllers;

use App\Models\Dealer;
use App\Models\Menu;
use App\Models\Transaction;
use App\Models\User;
use App\Models\Work;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Gate;

class AdminController extends Controller
{
    public function cmp($a, $b){
        $key = 'work_id';
        if($a[$key] > $b[$key]){
            return 1;
        }else if($a[$key] < $b[$key]){
            return -1;
        }
        return 0;
    }
 
    public function dashboard(Request $request) {
        abort_if(Gate::denies('view', Menu::where('link', 'dashboard')->first()), 403, 'Unauthorized User');
        
        if(!isset($request->month)) {
            $request['month'] = date('m');
        }

        if(!isset($request->year)) {
            $request['year'] = date('Y');
        }

        $month          = $request->month;
        $dealer         = $request->dealer;
        $year           = $request->year;
        $dealer_datas   = Dealer::all();
        $ajax_url       = route('dashboard_data').'?month='.$month.'&year='.$year.'&dealer='.$dealer;
        // dd($ajax_url);
        return view('dashboard', compact('month','year', 'ajax_url', 'dealer', 'dealer_datas'));
    }
 
    public function dashboard_data(Request $request) {
        abort_if(Gate::denies('view', Menu::where('link', 'dashboard')->first()), 403, 'Unauthorized User');
        if(!isset($request->month)) {
            $request['month'] = date('m');
        }

        if(!isset($request->year)) {
            $request['year'] = date('Y');
        }

        if(isset($request->{'amp;dealer'})) {
            $request['dealer'] = $request->{'amp;dealer'};
        }

        if(isset($request->{'amp;year'})) {
            $request['year'] = $request->{'amp;year'};
        }

        if(!isset($request->dealer)) {
            $request['dealer'] = 'all';
        }

        $month  = $request->month;
        $dealer = $request->dealer;
        $year   = $request->year;

        $dealer_work_trx = DB::statement("SET @sql = NULL");
        $sql = "SELECT IF(work_id IS NOT NULL, GROUP_CONCAT(DISTINCT CONCAT('SUM(IF(work_id = \"', work_id,'\", qty,\"\")) AS \"',CONCAT(w.name, '|',w.id),'\"')), 's.work_id') INTO @sql FROM transactions t JOIN works w ON w.id = t.work_id WHERE month(t.date) = '". $month ."' and year(t.date) = '". $year ."' and t.deleted_at is null";

        if(isset($request->dealer) && $request->dealer != 'all') {
            $sql .= " and t.dealer_id = '". $dealer ."'";
        }

        $dealer_work_trx = DB::statement($sql);
        
        if(isset($request->dealer) && $request->dealer != 'all') {
            $dealer_work_trx = DB::statement("SET @sql = IF(@sql != 's.work_id' ,CONCAT(\"SELECT d.name as DEALER, d.id as dealer_id,  \", @sql, \"FROM transactions s JOIN dealers d ON d.id = s.dealer_id WHERE month(s.date) = '". $month ."' and year(s.date) = '". $year ."' and s.deleted_at is null and s.dealer_id = '". $dealer ."' GROUP BY s.dealer_id ORDER BY s.dealer_id ASC\"), CONCAT(\"SELECT d.name as DEALER \", \"FROM transactions s JOIN dealers d ON d.id = s.dealer_id WHERE month(s.date) = '". $month ."' and year(s.date) = '". $year ."' and s.deleted_at is null and s.dealer_id = '". $dealer ."' GROUP BY s.`dealer_id` ORDER BY s.`dealer_id` ASC\"))");
        }else{
            $dealer_work_trx = DB::statement("SET @sql = IF(@sql != 's.work_id' ,CONCAT(\"SELECT d.name as DEALER, d.id as dealer_id,  \", @sql, \"FROM transactions s JOIN dealers d ON d.id = s.dealer_id WHERE month(s.date) = '". $month ."' and year(s.date) = '". $year ."' and s.deleted_at is null GROUP BY s.dealer_id ORDER BY s.dealer_id ASC\"), CONCAT(\"SELECT d.name as DEALER, d.id as dealer_id \", \"FROM transactions s JOIN dealers d ON d.id = s.dealer_id WHERE month(s.date) = '". $month ."' and year(s.date) = '". $year ."' and s.deleted_at is null GROUP BY s.`dealer_id` ORDER BY s.`dealer_id` ASC\"))");
        }
        
        $dealer_work_trx = DB::statement("PREPARE stmt FROM @sql");
        $dealer_work_trx = DB::select(DB::raw("EXECUTE stmt"));
        DB::statement('DEALLOCATE PREPARE stmt');
        // DD($dealer_work_trx);
        $theads = ['DEALER'];
        $dealer_names = [];
        $dealer_trx = [];
        $work_trx = [];
        $work_ids = [];

        foreach($dealer_work_trx as $index => $dealer_work) {
            $dealer_work_2 = (array) $dealer_work;
            unset($dealer_work_2['dealer_id']);
            $work_trx[$dealer_work->dealer_id] = array_values($dealer_work_2);
            unset($dealer_work_2['DEALER']);
            $work_names = array_keys($dealer_work_2);
            if($index == 0) {
                foreach($work_names as $work) {
                    $arr_work = explode('|', $work);
                    $theads[] = $arr_work[0];
                    $work_ids[] = $arr_work[1];
                    $dealer_trx[$work] = [
                        'work_name' => $arr_work[0],
                        'qty'       => [$dealer_work->{$work}]
                    ];
                }
            }else{
                foreach($work_names as $work) {
                    $dealer_trx[$work]['qty'][] = $dealer_work->{$work};
                }
            }
            
            $dealer_names[] = $dealer_work->DEALER;
        }
        // dd($dealer_trx);
        $dealer_trx = array_values($dealer_trx);
        $dealer = $request->dealer;
        $month = $request->month;

        $dealer_names   = json_encode($dealer_names);
        $dealer_trx     = json_encode($dealer_trx);
        
        $prev_mth_start = date('Y-m-d', strtotime(date($year.'-'. $request->month .'-1')." -1 month"));
        $prev_mth       = explode('-', $prev_mth_start);
        if($request->month == date('m')) {
            $prev_mth_end   = $prev_mth[0].'-'.$prev_mth[1].'-'.date('d');
        }else{
            $prev_mth_end   = $prev_mth[0].'-'.$prev_mth[1].'-'.date('t');
        }
        
        $prev_month_trx = [];
        $now_month_trx = [];
        foreach($work_ids as $work_id) { 
            $now_month = Transaction::select(DB::raw("SUM(qty) as qty"))->where('work_id', $work_id)->whereMonth('date', '=', $request->month)->whereYear('date', $year);
            $prev_month = Transaction::select(DB::raw("SUM(qty) as qty"))->where('work_id', $work_id)->whereDate('date', '>=', $prev_mth_start)->whereDate('date', '<=', $prev_mth_end);

            if(isset($request->dealer) && $request->dealer != 'all') {
                $prev_month = $prev_month->where('dealer_id', $request->dealer);
                $now_month = $now_month->where('dealer_id', $request->dealer);
            }

            $prev_month_trx[] = $prev_month->sum('qty');
            $now_month_trx[] = $now_month->sum('qty');
        }

        $totals = [];
        for($i = 0; $i < count($now_month_trx); $i++) {
            $totals[] = [
                "prev"  => $prev_month_trx[$i],
                "now"  => $now_month_trx[$i],
            ];
        }

        return view('dashboard_data', compact('theads', 'work_trx', 'month', 'year', 'dealer_names', 'dealer_trx', 'dealer', 'totals'));
    }

    public function dealer_work_trx(Request $request) {
        $dealer_work_trx = Work::select(DB::raw('works.name AS work_name'), DB::raw("IFNULL(SUM(t.qty), 0) AS qty"), 'works.id AS work_id')->whereHas('transactions', function($q) use($request) {
            if(isset($request->month)) {
                $q = $q->whereMonth('date', '=', $request->month)->whereYear('date', date('Y'));
            }
            
            if(isset($request->dealer_filter) && $request->dealer_filter != 'all') {
                $q = $q->where('dealer_id', $request->dealer_filter);
            }

            return $q;
        })->leftJoin('transactions AS t', function($q) use($request) {
            $q->on('t.work_id', '=', 'works.id');
            $q->on(DB::raw('MONTH(t.date)'), '=', DB::raw($request->month));
            $q->on(DB::raw('YEAR(t.date)'), '=', DB::raw(date('Y')));
            $q->on('t.dealer_id', '=', DB::raw($request->dealer));
        })->groupBy('works.id')->orderBy('works.id', 'ASC')->get();
        return response()->json($dealer_work_trx);
    }

    public function get_dealer_has_transactions(Request $request) {
        if(!isset($request->month)) {
            $request['month'] = date('m');
        }

        $dealers = Dealer::whereHas('transactions', function($q) use($request) {
            if(isset($request->month)) {
                $q = $q->whereMonth('date', '=', $request->month)->whereYear('date', date('Y'));
            }
        });

        if(isset($request->dealer) && $request->dealer != 'all') {
            $dealers = $dealers->where('id', $request->dealer);
        }

        $dealers = $dealers->orderBy('id', 'ASC')->get();

        return response()->json($dealers);
    }
 
    public function dashboard_data_old(Request $request) {
        $trxs = [];
        
        if(!isset($request->month)) {
            $request['month'] = date('m');
        }
        
        $dealers = Dealer::whereHas('transactions', function($q) use($request) {
            if(isset($request->month)) {
                return $q->whereMonth('date', '=', $request->month)->whereYear('date', date('Y'));
            }
        })->orderBy('id', 'ASC')->get();

        $works = Work::select('id', 'name')->whereHas('transactions', function($q) use($request) {
            if(isset($request->month)) {
                return $q->whereMonth('date', '=', $request->month)->whereYear('date', date('Y'));
            }
        })->orderBy('id', 'ASC')->get();


        $works_count = $works->count();
        $month_trxs_total   = [];
        $prev_month_trxs_total   = [];
        foreach ($dealers as $key => $dealer) {
            foreach($works as $work1) {
                $prev_mth_start = date('Y-m-d', strtotime(date('Y-'. $request->month .'-1')." -1 month"));
                $prev_mth       = explode('-', $prev_mth_start);
                if($request->month == date('m')) {
                    $prev_mth_end   = $prev_mth[0].'-'.$prev_mth[1].'-'.date('d');
                }else{
                    $prev_mth_end   = $prev_mth[0].'-'.$prev_mth[1].'-'.date('t');
                }
                
                // dd($prev_mth_end);
                $yesterday_month_trx = Transaction::where('work_id', $work1->id)->where('dealer_id', $dealer->id)->whereDate('date', '>=', $prev_mth_start)->whereDate('date', '<=', $prev_mth_end)->sum('qty');

                if(array_key_exists($work1->id, $prev_month_trxs_total)) {
                    $prev_month_trxs_total[$work1->id]    += $yesterday_month_trx; 
                }else{
                    $prev_month_trxs_total[$work1->id]    = $yesterday_month_trx;
                }
            }

            $dealer_works = [];
            foreach ($works as $key2 => $work) {
                $d = Transaction::where('dealer_id', $dealer->id)->where('work_id', $work->id);
                
                if(isset($request->month)) {
                    $d = $d->whereMonth('date', '=', $request->month)->whereYear('date', date('Y'));
                    $month = $request->month;
                }
                
                $d = $d->sum('qty');
                if($d) {
                    if(array_key_exists($work->id, $month_trxs_total)) {
                        $month_trxs_total[$work->id]    += $d; 
                    }else{
                        $month_trxs_total[$work->id]    = $d; 
                    }
                    $dealer_works[] = [
                        'work_id'       => $work->id,
                        'work_name'     => $work->name,
                        'dealer_id'     => $dealer->id,
                        'qty'           => $d,
                    ];
                }else{
                    $dealer_works[] = [
                        'work_id'       => $work->id,
                        'work_name'     => $work->name,
                        'dealer_id'     => $dealer->id,
                        'qty'           => 0,
                    ];
                }
            }

            $trxs[] = [
                'dealer_id'     => $dealer->id,
                'dealer_name'   => $dealer->name,
                'works'         => $dealer_works
            ];
        }

        $dealer_names = [];
        $trx_data     = [];
        foreach($trxs as $trx) {
            $dealer_names[] = $trx['dealer_name'];
            $work_data2 = [];
            foreach($trx['works'] as $work_data) {
                if(array_key_exists($work_data['work_name'], $trx_data)) {
                    $trx_data[$work_data['work_name']]['qty'][] = $work_data['qty'];
                }else{
                    $trx_data[$work_data['work_name']] = [
                        'work_name' => $work_data['work_name'],
                        'qty'       => [$work_data['qty']]
                    ];
                }
            }
        }
        
        $month_trxs_total = array_values($month_trxs_total);
        $prev_month_trxs_total = array_values($prev_month_trxs_total);

        $totals = [];
        for($i = 0; $i < count($month_trxs_total); $i++) {
            $totals[] = [
                "prev"  => $prev_month_trxs_total[$i],
                "now"  => $month_trxs_total[$i],
            ];
        }
        $dealer_names   = json_encode($dealer_names);
        
        $trx_data       = json_encode(array_values($trx_data));
        $month          = $request->month;

        return view('dashboard_data', compact('works', 'works_count', 'trxs', 'month', 'dealer_names', 'trx_data', 'totals'));
    }

    public function dealer_recap(Request $request, $id)
    {   
        abort_if(Gate::denies('view', Menu::where('link', 'dashboard')->first()), 403, 'Unauthorized User');

        if(!isset($request->month)) {
            $request['month'] = date('m');
        }
        
        if(!isset($request->year)) {
            $request['year'] = date('Y');
        }

        $works = Work::select('id', 'name', 'shortname')->whereHas('transactions', function($q) use($request, $id) {
            return $q->where('qty', '>', '0')->where('dealer_id', $id)->whereMonth('date', '=', $request->month)->whereYear('date', $request->year);
        })->get();

        $sas = User::select('id', 'name')->whereHas('sa_transactions', function($q) use($request, $id) {
            return $q->where('dealer_id', $id)->whereMonth('date', '=', $request->month)->whereYear('date', $request->year);
        })->get();

        $dealer = Dealer::find($id);
        
        $dates = Transaction::select(DB::raw('DATE(`date`) as date'))->where('dealer_id', $id)->whereMonth('date', $request->month)->whereYear('date', $request->year)->groupBy(DB::raw('DATE(`date`)'))->get()->toArray();
        $dates = $this->array_value_recursive('date', $dates);
        
        $trxs = [];
        $month_trxs_total   = [];
        $yesterday_month_trxs_total   = [];
        foreach($works as $work1) {
            $prev_mth_start = date('Y-m-d', strtotime(date($request->year.'-'. $request->month .'-1')." -1 month"));
            $prev_mth       = explode('-', $prev_mth_start);
            if($request->month == date('m')) {
                $prev_mth_end   = $prev_mth[0].'-'.$prev_mth[1].'-'.date('d');
            }else{
                $prev_mth_end   = $prev_mth[0].'-'.$prev_mth[1].'-'.date('t');
            }
            
            $yesterday_month_trx = Transaction::where('work_id', $work1->id)->where('dealer_id', $id)->whereDate('date', '>=', $prev_mth_start)->whereDate('date', '<=', $prev_mth_end)->sum('qty');

            if(array_key_exists($work1->id, $yesterday_month_trxs_total)) {
                $yesterday_month_trxs_total[$work1->id]    += $yesterday_month_trx; 
            }else{
                $yesterday_month_trxs_total[$work1->id]    = $yesterday_month_trx; 
            }
        }

        if($dates) {
            foreach($dates as $key => $date) {
                $date_works = [];
                $share_works = [];
                foreach ($works as $key2 => $work) {
                    $d = Transaction::where('work_id', $work->id)->where('dealer_id', $id)->whereDate('date', $date)->whereMonth('date', '=', $request->month)->whereYear('date', $request->year);

                    if($d) {
                        $d = $d->sum('qty');
                        if(array_key_exists($work->id, $month_trxs_total)) {
                            $month_trxs_total[$work->id]    += $d; 
                        }else{
                            $month_trxs_total[$work->id]    = $d; 
                        }
                        
                        $date_works[] = [
                            'work_id'       => $work->id,
                            'work_name'     => $work->name,
                            'shortname'     => $work->shortname,
                            'date'          => $date,
                            'qty'           => $d,
                        ];
                    }else{
                        $date_works[] = [
                            'work_id'       => $work->id,
                            'work_name'     => $work->name,
                            'shortname'     => $work->shortname,
                            'date'          => $date,
                            'qty'           => 0,
                        ];
                    }
    
                }
                
                $trxs[] = [
                    'date'  => date('d/m/Y', strtotime($date)),
                    'works' => $date_works
                ];
            }
        }

        $dealer_trxs = [];
        foreach($sas as $key => $sa) {
            $sa_works = [];
            foreach ($works as $key2 => $work) {
                $d = Transaction::where('user_sa_id', $sa->id)->where('work_id', $work->id)->where('dealer_id', $id);
                
                $d = $d->whereMonth('date', '=', $request->month)->whereYear('date', $request->year);
                $month = $request->month;
                
                if($d) {
                    $d = $d->sum('qty');
                    $sa_works[] = [
                        'work_id'       => $work->id,
                        'work_name'     => $work->name,
                        'user_sa_id'     => $sa->id,
                        'qty'           => $d,
                    ];
                }else{
                    $sa_works[] = [
                        'work_id'       => $work->id,
                        'work_name'     => $work->name,
                        'user_sa_id'     => $sa->id,
                        'qty'           => 0,
                    ];
                }
            }

            $dealer_trxs[] = [
                'user_sa_id'     => $sa->id,
                'sa_name'        => $sa->name,
                'works'          => $sa_works
            ];
        }
        
        // $month_trxs_total = array_values($month_trxs_total);
        // $yesterday_month_trxs_total = array_values($yesterday_month_trxs_total);
// dd(["month_trxs_total" => $month_trxs_total, "yesterday_month_trxs_total" => $yesterday_month_trxs_total, "works" => $works->toArray()]);
// dd($month_trxs_total);
// dd($yesterday_month_trxs_total);
        $final_month_trxs_total = [];
        $final_yesterday_month_trxs_total = [];
        foreach($works as $work1) {
            $final_month_trxs_total[$work1->id] = array_key_exists($work1->id, $month_trxs_total) ? $month_trxs_total[$work1->id] : 0;
            $final_yesterday_month_trxs_total[$work1->id] = $yesterday_month_trxs_total[$work1->id];
        }
        // dd([$final_month_trxs_total, $final_yesterday_month_trxs_total]);
        $month_trxs_total = array_values($final_month_trxs_total);
        $yesterday_month_trxs_total = array_values($final_yesterday_month_trxs_total);
        $totals = [];
        for($i = 0; $i < count($month_trxs_total); $i++) {
            $totals[] = [
                "prev"  => $yesterday_month_trxs_total[$i],
                "now"  => $month_trxs_total[$i],
            ];
        }
        
        $works_count    = count($works);
        $month          = $request->month;
        $year           = $request->year;
        return view('dealer_recap', compact('totals', 'month', 'year', 'works', 'works_count', 'trxs', 'dealer', 'dealer_trxs'));
    }

    private function array_value_recursive($key, array $arr){
        $val = array();
        array_walk_recursive($arr, function($v, $k) use($key, &$val){
            if($k == $key) array_push($val, $v);
        });

        return $val;
    }
    
}