<?php

namespace App\Http\Controllers\Loan;

use App\Http\Controllers\Controller;
use App\Models\Contract;
use App\Models\Permission;
use App\Models\User;
use DateTime;
use DateTimeZone;
use Illuminate\Auth\Access\Response as Response;
use Illuminate\Http\Request;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Pagination\Paginator;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Response as Fresponse;
use Illuminate\Support\Facades\Storage;


class PdfController extends Controller
{
    public function index(Request $request){
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'pdf_viewAny'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $search_types = [];
        array_push($search_types,array("value" => "user", "name" => "user"));
        array_push($search_types,array("value" => "date", "name" => "date"));
        array_push($search_types,array("value" => "type", "name" => "type"));

        $PerPagination = $request->input('p') ?? 10;
        $search_term =  $request->input('search_term');
        $search_type = $request->input('search_type');
        $search_compare = $request->input('search_compare');

        if($search_term != ""){
            switch ($search_type){
                case "user":
                    switch($search_compare){
                        case('='):
                            $contracts = Contract::where(function ($query) use ($search_term){
                                $query->whereHas('user',function ($query) use ($search_term){
                                    $query->where('username','=',$search_term);
                                });
                            })
                                ->orderBy('user_id')
                                ->orderBy('type')
                                ->orderBy('timestamp','desc')
                                ->paginate($PerPagination);
                        break;
                        default:
                            $contracts = Contract::where(function ($query) use ($search_term){
                                $query->whereHas('user',function ($query) use ($search_term){
                                    $query->where('username','like','%' . $search_term . '%');
                                });
                            })
                                ->orderBy('user_id')
                                ->orderBy('type')
                                ->orderBy('timestamp','desc')
                                ->paginate($PerPagination);
                        break;
                    }
                break;
                case "type":
                    switch($search_compare){
                        default:
                            $contracts = Contract::where('type','=',trans($search_term))
                                ->orderBy('user_id')
                                ->orderBy('type')
                                ->orderBy('timestamp','desc')
                                ->paginate($PerPagination);
                        break;
                    }
                break;
                case "date":
                    switch($search_compare){
                        case('>='):
                            $parts = explode(' ',$search_term);
                            $date_part = $parts[0];
                            $time_part = $parts[1];
                            $date_parts = explode('.',$date_part);
                            $d = $date_parts[0];
                            $m = $date_parts[1];
                            $y = $date_parts[2];
                            $time_parts = explode(':',$time_part);
                            $h = $time_parts[0];
                            $i = $time_parts[1];
                            $s = $time_parts[2];
                            $date = new DateTime();
                            $timezone = new DateTimeZone('Europe/Copenhagen');
                            $date->setTimezone($timezone);
                            $date->setDate($y,$m,$d);
                            $date->setTime($h,$i,$s);
                            $timestamp = $date->getTimestamp();
                            $contracts = Contract::where('timestamp','>=',$timestamp)
                                ->orderBy('user_id')
                                ->orderBy('type')
                                ->orderBy('timestamp','desc')
                                ->paginate($PerPagination);
                        break;
                        case('<='):
                            $parts = explode(' ',$search_term);
                            $date_part = $parts[0];
                            $time_part = $parts[1];
                            $date_parts = explode('.',$date_part);
                            $d = $date_parts[0];
                            $m = $date_parts[1];
                            $y = $date_parts[2];
                            $time_parts = explode(':',$time_part);
                            $h = $time_parts[0];
                            $i = $time_parts[1];
                            $s = $time_parts[2];
                            $date = new DateTime();
                            $timezone = new DateTimeZone('Europe/Copenhagen');
                            $date->setTimezone($timezone);
                            $date->setDate($y,$m,$d);
                            $date->setTime($h,$i,$s);
                            $timestamp = $date->getTimestamp();
                            $contracts = Contract::where('timestamp','<=',$timestamp)
                                ->orderBy('user_id')
                                ->orderBy('type')
                                ->orderBy('timestamp','desc')
                                ->paginate($PerPagination);
                        break;
                        default:
                            $parts = explode(' ',$search_term);
                            $date_part = $parts[0];
                            $time_part = $parts[1];
                            $date_parts = explode('.',$date_part);
                            $d = $date_parts[0];
                            $m = $date_parts[1];
                            $y = $date_parts[2];
                            $time_parts = explode(':',$time_part);
                            $h = $time_parts[0];
                            $i = $time_parts[1];
                            $s = $time_parts[2];
                            $date = new DateTime();
                            $timezone = new DateTimeZone('Europe/Copenhagen');
                            $date->setTimezone($timezone);
                            $date->setDate($y,$m,$d);
                            $date->setTime($h,$i,$s);
                            $timestamp = $date->getTimestamp();
                            $contracts = Contract::where('timestamp','=',$timestamp)
                                ->orderBy('user_id')
                                ->orderBy('type')
                                ->orderBy('timestamp','desc')
                                ->paginate($PerPagination);
                        break;
                    }
                break;
            }
        }
        else{
            $contracts = Contract::orderBy('user_id')
                ->orderBy('type')
                ->orderBy('timestamp','desc')
                ->paginate($PerPagination);
        }


        return view('contracts.index')
            ->with('search_types',$search_types)
            ->with('data_name','contract')
            ->with('data_names','contracts')
            ->with('data',$contracts)
        ;
    }

    public function show(Request $request,$user){
        $user_obj = User::where('username','=',$user)->first();

        if(empty($user_obj)){
            $user_obj = User::where('name','=',$request->user)->first();
        }

        if(Auth::user()->id != $user_obj->id){
            if(!Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'pdf_view'))){
                return redirect()->intended(route('users.show',Auth::user()));
            }
            else{
                $user =  $request->user;
                $type = $request->type;

                $timestamp = $request->timestamp;
                $file_name = utf8_encode('app/'.$type."/".$user."_".$timestamp.".pdf");
                $file_full = storage_path($file_name);
                return Fresponse::file($file_full);
            }
        }
        else{
            $user =  $request->user;
            $type = $request->type;

            $timestamp = $request->timestamp;
            $file_name = utf8_encode('app/'.$type."/".$user."_".$timestamp.".pdf");
            $file_full = storage_path($file_name);
            return Fresponse::file($file_full);
        }
    }

    public function destroy(Request $request){
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'pdf_delete'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $type = $request->type;
        $user =  $request->user;
        $timestamp = $request->timestamp;

        $file_name = utf8_encode('app/'.$type."/".$user."_".$timestamp.".pdf");
        $file_full = storage_path($file_name);

        if(file_exists($file_full)){
            unlink($file_full);
        }

        $user_obj = User::where('username','=',$user)->first();

        return redirect()->back();
    }
}