<?php

namespace App\Http\Controllers;

use App\Account;
use App\Business;
use App\BusinessLocation;
use App\Contact;
use App\CustomerGroup;
use App\InvoiceScheme;
use App\Media;
use App\Product;
use App\SellingPriceGroup;
use App\TaxRate;
use App\Transaction;
use App\TransactionSellLine;
use App\TypesOfService;
use App\User;
use App\Utils\BusinessUtil;
use App\Utils\ContactUtil;
use App\Utils\ModuleUtil;
use App\Utils\ProductUtil;
use App\Utils\TransactionUtil;
use App\Variation;
use App\Warranty;
use DB;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Artisan;
use Spatie\Activitylog\Models\Activity;
use Yajra\DataTables\Facades\DataTables;

class SellController extends Controller
{
    /**
     * All Utils instance.
     */
    protected $contactUtil;

    protected $businessUtil;

    protected $transactionUtil;

    protected $productUtil;

    /**
     * Constructor
     *
     * @param  ProductUtils  $product
     * @return void
     */
    public function __construct(ContactUtil $contactUtil, BusinessUtil $businessUtil, TransactionUtil $transactionUtil, ModuleUtil $moduleUtil, ProductUtil $productUtil)
    {
        $this->contactUtil = $contactUtil;
        $this->businessUtil = $businessUtil;
        $this->transactionUtil = $transactionUtil;
        $this->moduleUtil = $moduleUtil;
        $this->productUtil = $productUtil;

        $this->dummyPaymentLine = ['method' => '', 'amount' => 0, 'note' => '', 'card_transaction_number' => '', 'card_number' => '', 'card_type' => '', 'card_holder_name' => '', 'card_month' => '', 'card_year' => '', 'card_security' => '', 'cheque_number' => '', 'bank_account_number' => '',
            'is_return' => 0, 'transaction_no' => '', ];

        $this->shipping_status_colors = [
            'ordered' => 'bg-yellow',
            'packed' => 'bg-info',
            'shipped' => 'bg-navy',
            'delivered' => 'bg-green',
            'cancelled' => 'bg-red',
        ];
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $is_admin = $this->businessUtil->is_admin(auth()->user());

        if (! $is_admin && ! auth()->user()->hasAnyPermission(['sell.view', 'sell.create', 'direct_sell.access', 'direct_sell.view', 'view_own_sell_only', 'view_commission_agent_sell', 'access_shipping', 'access_own_shipping', 'access_commission_agent_shipping', 'so.view_all', 'so.view_own'])) {
            abort(403, 'Unauthorized action.');
        }

        $business_id = request()->session()->get('user.business_id');
        $is_woocommerce = $this->moduleUtil->isModuleInstalled('Woocommerce');
        $is_crm = $this->moduleUtil->isModuleInstalled('Crm');
        $is_tables_enabled = $this->transactionUtil->isModuleEnabled('tables');
        $is_service_staff_enabled = $this->transactionUtil->isModuleEnabled('service_staff');
        $is_types_service_enabled = $this->moduleUtil->isModuleEnabled('types_of_service');

        if (request()->ajax()) {
            $payment_types = $this->transactionUtil->payment_types(null, true, $business_id);
            $with = [];
            $shipping_statuses = $this->transactionUtil->shipping_statuses();

            $sale_type = ! empty(request()->input('sale_type')) ? request()->input('sale_type') : 'sell';

            $sells = $this->transactionUtil->getListSells($business_id, $sale_type);

            // only display sell invoice we add it because project invoive show in sell list
            if($sale_type == 'sell'){
                $sells->where(function ($query) {
                    $query->where('transactions.sub_type', '!=', 'project_invoice')
                          ->orWhereNull('transactions.sub_type');
                });
            }         

            $permitted_locations = auth()->user()->permitted_locations();
            if ($permitted_locations != 'all') {
                $sells->whereIn('transactions.location_id', $permitted_locations);
            }

            //Add condition for created_by,used in sales representative sales report
            if (request()->has('created_by')) {
                $created_by = request()->get('created_by');
                if (! empty($created_by)) {
                    $sells->where('transactions.created_by', $created_by);
                }
            }

            $partial_permissions = ['view_own_sell_only', 'view_commission_agent_sell', 'access_own_shipping', 'access_commission_agent_shipping'];
            if (! auth()->user()->can('direct_sell.view')) {
                $sells->where(function ($q) {
                    if (auth()->user()->hasAnyPermission(['view_own_sell_only', 'access_own_shipping'])) {
                        $q->where('transactions.created_by', request()->session()->get('user.id'));
                    }

                    //if user is commission agent display only assigned sells
                    if (auth()->user()->hasAnyPermission(['view_commission_agent_sell', 'access_commission_agent_shipping'])) {
                        $q->orWhere('transactions.commission_agent', request()->session()->get('user.id'));
                    }
                });
            }

            $only_shipments = request()->only_shipments == 'true' ? true : false;
            if ($only_shipments) {
                $sells->whereNotNull('transactions.shipping_status');

                if (auth()->user()->hasAnyPermission(['access_pending_shipments_only'])) {
                    $sells->where('transactions.shipping_status', '!=', 'delivered');
                }
            }

            if (! $is_admin && ! $only_shipments && $sale_type != 'sales_order') {
                $payment_status_arr = [];
                if (auth()->user()->can('view_paid_sells_only')) {
                    $payment_status_arr[] = 'paid';
                }

                if (auth()->user()->can('view_due_sells_only')) {
                    $payment_status_arr[] = 'due';
                }

                if (auth()->user()->can('view_partial_sells_only')) {
                    $payment_status_arr[] = 'partial';
                }

                if (empty($payment_status_arr)) {
                    if (auth()->user()->can('view_overdue_sells_only')) {
                        $sells->OverDue();
                    }
                } else {
                    if (auth()->user()->can('view_overdue_sells_only')) {
                        $sells->where(function ($q) use ($payment_status_arr) {
                            $q->whereIn('transactions.payment_status', $payment_status_arr)
                            ->orWhere(function ($qr) {
                                $qr->OverDue();
                            });
                        });
                    } else {
                        $sells->whereIn('transactions.payment_status', $payment_status_arr);
                    }
                }
            }

            if (! empty(request()->input('payment_status')) && request()->input('payment_status') != 'overdue') {
                $sells->where('transactions.payment_status', request()->input('payment_status'));
            } elseif (request()->input('payment_status') == 'overdue') {
                $sells->whereIn('transactions.payment_status', ['due', 'partial'])
                    ->whereNotNull('transactions.pay_term_number')
                    ->whereNotNull('transactions.pay_term_type')
                    ->whereRaw("IF(transactions.pay_term_type='days', DATE_ADD(transactions.transaction_date, INTERVAL transactions.pay_term_number DAY) < CURDATE(), DATE_ADD(transactions.transaction_date, INTERVAL transactions.pay_term_number MONTH) < CURDATE())");
            }

            //Add condition for location,used in sales representative expense report
            if (request()->has('location_id')) {
                $location_id = request()->get('location_id');
                if (! empty($location_id)) {
                    $sells->where('transactions.location_id', $location_id);
                }
            }

            if (!empty(request()->input('rewards_only')) && request()->input('rewards_only') == true) {
                $sells->where(function ($q) {
                    $q->whereNotNull('transactions.rp_earned')
                    ->orWhere('transactions.rp_redeemed', '>', 0);
                });
            }

            if (! empty(request()->customer_id)) {
                $customer_id = request()->customer_id;
                $sells->where('contacts.id', $customer_id);
            }
            if (! empty(request()->start_date) && ! empty(request()->end_date)) {
                $start = request()->start_date;
                $end = request()->end_date;
                $sells->whereDate('transactions.transaction_date', '>=', $start)
                            ->whereDate('transactions.transaction_date', '<=', $end);
            }

            //Check is_direct sell
            if (request()->has('is_direct_sale')) {
                $is_direct_sale = request()->is_direct_sale;
                if ($is_direct_sale == 0) {
                    $sells->where('transactions.is_direct_sale', 0);
                    $sells->whereNull('transactions.sub_type');
                }
            }

            //Add condition for commission_agent,used in sales representative sales with commission report
            if (request()->has('commission_agent')) {
                $commission_agent = request()->get('commission_agent');
                if (! empty($commission_agent)) {
                    $sells->where('transactions.commission_agent', $commission_agent);
                }
            }

            if (! empty(request()->input('source'))) {
                //only exception for woocommerce
                if (request()->input('source') == 'woocommerce') {
                    $sells->whereNotNull('transactions.woocommerce_order_id');
                } else {
                    $sells->where('transactions.source', request()->input('source'));
                }
            }

            if ($is_crm) {
                $sells->addSelect('transactions.crm_is_order_request');

                if (request()->has('crm_is_order_request')) {
                    $sells->where('transactions.crm_is_order_request', 1);
                }
            }

            if (request()->only_subscriptions) {
                $sells->where(function ($q) {
                    $q->whereNotNull('transactions.recur_parent_id')
                        ->orWhere('transactions.is_recurring', 1);
                });
            }

            if (! empty(request()->list_for) && request()->list_for == 'service_staff_report') {
                $sells->whereNotNull('transactions.res_waiter_id');
            }

            if (! empty(request()->res_waiter_id)) {
                $sells->where('transactions.res_waiter_id', request()->res_waiter_id);
            }

            if (! empty(request()->input('sub_type'))) {
                $sells->where('transactions.sub_type', request()->input('sub_type'));
            }

            if (! empty(request()->input('created_by'))) {
                $sells->where('transactions.created_by', request()->input('created_by'));
            }

            if (! empty(request()->input('status'))) {
                $sells->where('transactions.status', request()->input('status'));
            }

            if (! empty(request()->input('sales_cmsn_agnt'))) {
                $sells->where('transactions.commission_agent', request()->input('sales_cmsn_agnt'));
            }

            if (! empty(request()->input('service_staffs'))) {
                $sells->where('transactions.res_waiter_id', request()->input('service_staffs'));
            }

            $only_pending_shipments = request()->only_pending_shipments == 'true' ? true : false;
            if ($only_pending_shipments) {
                $sells->where('transactions.shipping_status', '!=', 'delivered')
                        ->whereNotNull('transactions.shipping_status');
                $only_shipments = true;
            }

            if (! empty(request()->input('shipping_status'))) {
                $sells->where('transactions.shipping_status', request()->input('shipping_status'));
            }

            if (! empty(request()->input('for_dashboard_sales_order'))) {
                $sells->whereIn('transactions.status', ['partial', 'ordered'])
                    ->orHavingRaw('so_qty_remaining > 0');
            }

            if ($sale_type == 'sales_order') {
                if (! auth()->user()->can('so.view_all') && auth()->user()->can('so.view_own')) {
                    $sells->where('transactions.created_by', request()->session()->get('user.id'));
                }
            }

            if (! empty(request()->input('delivery_person'))) {
                $sells->where('transactions.delivery_person', request()->input('delivery_person'));
            }

            $sells->groupBy('transactions.id');

            if (! empty(request()->suspended)) {
                $transaction_sub_type = request()->get('transaction_sub_type');
                if (! empty($transaction_sub_type)) {
                    $sells->where('transactions.sub_type', $transaction_sub_type);
                } else {
                    $sells->where('transactions.sub_type', null);
                }

                $with = ['sell_lines'];

                if ($is_tables_enabled) {
                    $with[] = 'table';
                }

                if ($is_service_staff_enabled) {
                    $with[] = 'service_staff';
                }

                $sales = $sells->where('transactions.is_suspend', 1)
                            ->with($with)
                            ->addSelect('transactions.is_suspend', 'transactions.res_table_id', 'transactions.res_waiter_id', 'transactions.additional_notes')
                            ->get();

                return view('sale_pos.partials.suspended_sales_modal')->with(compact('sales', 'is_tables_enabled', 'is_service_staff_enabled', 'transaction_sub_type'));
            }

            $with[] = 'payment_lines';
            
            if (!empty($with)) {
                foreach ($with as $relation) {
                    if ($relation == 'payment_lines' && !empty(request()->input('payment_method'))) {
                        $sells->whereHas($relation, function ($query) {
                            $query->where('method', request()->input('payment_method'));
                        });
                    } else {
                        $sells->with($relation);
                    }
                }
            }

            //$business_details = $this->businessUtil->getDetails($business_id);
            if ($this->businessUtil->isModuleEnabled('subscription')) {
                $sells->addSelect('transactions.is_recurring', 'transactions.recur_parent_id');
            }
            $sales_order_statuses = Transaction::sales_order_statuses();

            // for zatca module Retrieve the 'is_zatca' parameter from the request; default to 0 if not provided and only comes 1 from zatca module
            $is_zatca = !empty(request()->input('is_zatca')) ? request()->input('is_zatca') : 0;

            if ($is_zatca) {
                $sells->addSelect('transactions.zatca_status');

                if (! empty(request()->input('zatca_status'))) {
                    if (request()->input('zatca_status') == 'pending') {
                        $sells->whereNull('transactions.zatca_status');
                    } else {
                        $sells->where('transactions.zatca_status', request()->input('zatca_status'));
                    }
                }
            }

            $datatable = Datatables::of($sells)
                ->addColumn(
                    'action',
                    function ($row) use ($only_shipments, $is_admin, $sale_type, $is_zatca) {

                        // this action button for zatca module
                        if ($is_zatca) {
                            if ($row->zatca_status == 'success') {
                                return '<div class="btn-group">
                                <button type="button" class="tw-dw-btn tw-dw-btn-xs tw-dw-btn-outline tw-dw-btn-info tw-w-max dropdown-toggle"
                                    data-toggle="dropdown" aria-expanded="false">' .
                                    __('messages.actions') .
                                    '<span class="caret"></span><span class="sr-only">Toggle Dropdown</span>
                                </button>
                                <ul class="dropdown-menu dropdown-menu-left" role="menu">
                                    <li><a class="download-xml" href="'.action([\Modules\ZatcaIntegrationKsa\Http\Controllers\ZatcaInvoiceController::class, 'downloadXml'], [$row->id]).'">
                                            <i class="fas fa-file-download"></i> '.__('zatcaintegrationksa::lang.download_xml').'
                                        </a>
                                    </li>
                                    <li>
                                        <a class="download-a3-pdf" target="_blank" href="'.action([\Modules\ZatcaIntegrationKsa\Http\Controllers\ZatcaInvoiceController::class, 'sale_print_pdf'], [$row->id]).'">
                                            <i class="fas fa-file-download"></i> '.__('zatcaintegrationksa::lang.download_a3_pdf').'
                                        </a>
                                    </li>
                                </ul></div>';
                            }else {
                                return '<a href="' . action([\Modules\ZatcaIntegrationKsa\Http\Controllers\ZatcaInvoiceController::class, 'sycs_sale'], [$row->id]) . '" class="tw-dw-btn tw-dw-btn-xs tw-dw-btn-outline tw-dw-btn-info tw-w-max sycs_sale">' . __('zatcaintegrationksa::lang.sync') . '</a>';
                            }


                        }
                        $html = '<div class="btn-group">
                                    <button type="button" class="tw-dw-btn tw-dw-btn-xs tw-dw-btn-outline  tw-dw-btn-info tw-w-max dropdown-toggle"
                                        data-toggle="dropdown" aria-expanded="false">' .
                        __('messages.actions') .
                            '<span class="caret"></span><span class="sr-only">Toggle Dropdown
                                        </span>
                                    </button>
                                    <ul class="dropdown-menu dropdown-menu-left" role="menu">';

                        if (auth()->user()->can('sell.view') || auth()->user()->can('direct_sell.view') || auth()->user()->can('view_own_sell_only')) {
                            $html .= '<li><a href="#" data-href="'.action([\App\Http\Controllers\SellController::class, 'show'], [$row->id]).'" class="btn-modal" data-container=".view_modal"><i class="fas fa-eye" aria-hidden="true"></i> '.__('messages.view').'</a></li>';
                        }
                        if (! $only_shipments) {
                            if ($row->is_direct_sale == 0) {
                                if (auth()->user()->can('sell.update')) {
                                    $html .= '<li><a target="_blank" href="'.action([\App\Http\Controllers\SellPosController::class, 'edit'], [$row->id]).'"><i class="fas fa-edit"></i> '.__('messages.edit').'</a></li>';
                                }
                            } elseif ($row->type == 'sales_order') {
                                if (auth()->user()->can('so.update')) {
                                    $html .= '<li><a target="_blank" href="'.action([\App\Http\Controllers\SellController::class, 'edit'], [$row->id]).'"><i class="fas fa-edit"></i> '.__('messages.edit').'</a></li>';
                                }
                            } else {
                                if (auth()->user()->can('direct_sell.update')) {
                                    $html .= '<li><a target="_blank" href="'.action([\App\Http\Controllers\SellController::class, 'edit'], [$row->id]).'"><i class="fas fa-edit"></i> '.__('messages.edit').'</a></li>';
                                }
                            }

                            $delete_link = '<li><a href="'.action([\App\Http\Controllers\SellPosController::class, 'destroy'], [$row->id]).'" class="delete-sale"><i class="fas fa-trash"></i> '.__('messages.delete').'</a></li>';
                            if ($row->is_direct_sale == 0) {
                                if (auth()->user()->can('sell.delete')) {
                                    $html .= $delete_link;
                                }
                            } elseif ($row->type == 'sales_order') {
                                if (auth()->user()->can('so.delete')) {
                                    $html .= $delete_link;
                                }
                            } else {
                                if (auth()->user()->can('direct_sell.delete')) {
                                    $html .= $delete_link;
                                }
                            }
                        }

                        if (config('constants.enable_download_pdf') && auth()->user()->can('print_invoice') && $sale_type != 'sales_order') {
                            $html .= '<li><a href="'.route('sell.downloadPdf', [$row->id]).'" target="_blank"><i class="fas fa-print" aria-hidden="true"></i> '.__('lang_v1.download_pdf').'</a></li>';

                            if (! empty($row->shipping_status)) {
                                $html .= '<li><a href="'.route('packing.downloadPdf', [$row->id]).'" target="_blank"><i class="fas fa-print" aria-hidden="true"></i> '.__('lang_v1.download_paking_pdf').'</a></li>';
                            }
                        }

                        if (auth()->user()->can('sell.view') || auth()->user()->can('direct_sell.access')) {
                            if (! empty($row->document)) {
                                $document_name = ! empty(explode('_', $row->document, 2)[1]) ? explode('_', $row->document, 2)[1] : $row->document;
                                $html .= '<li><a href="'.url('uploads/documents/'.$row->document).'" download="'.$document_name.'"><i class="fas fa-download" aria-hidden="true"></i>'.__('purchase.download_document').'</a></li>';
                                if (isFileImage($document_name)) {
                                    $html .= '<li><a href="#" data-href="'.url('uploads/documents/'.$row->document).'" class="view_uploaded_document"><i class="fas fa-image" aria-hidden="true"></i>'.__('lang_v1.view_document').'</a></li>';
                                }
                            }
                        }

                        if ($is_admin || auth()->user()->hasAnyPermission(['access_shipping', 'access_own_shipping', 'access_commission_agent_shipping'])) {
                            $html .= '<li><a href="#" data-href="'.action([\App\Http\Controllers\SellController::class, 'editShipping'], [$row->id]).'" class="btn-modal" data-container=".view_modal"><i class="fas fa-truck" aria-hidden="true"></i>'.__('lang_v1.edit_shipping').'</a></li>';
                        }

                        if ($row->type == 'sell') {
                            if (auth()->user()->can('print_invoice')) {
                                $html .= '<li><a href="#" class="print-invoice" data-href="'.route('sell.printInvoice', [$row->id]).'"><i class="fas fa-print" aria-hidden="true"></i> '.__('lang_v1.print_invoice').'</a></li>
                                    <li><a href="#" class="print-invoice" data-href="'.route('sell.printInvoice', [$row->id]).'?package_slip=true"><i class="fas fa-file-alt" aria-hidden="true"></i> '.__('lang_v1.packing_slip').'</a></li>';

                                $html .= '<li><a href="#" class="print-invoice" data-href="'.route('sell.printInvoice', [$row->id]).'?delivery_note=true"><i class="fas fa-file-alt" aria-hidden="true"></i> '.__('lang_v1.delivery_note').'</a></li>';
                            }
                            $html .= '<li class="divider"></li>';
                            if (! $only_shipments) {
                                if ($row->is_direct_sale == 0 && ! auth()->user()->can('sell.update') &&
                                auth()->user()->can('edit_pos_payment')) {
                                    $html .= '<li><a href="'.route('edit-pos-payment', [$row->id]).'" 
                                    ><i class="fas fa-money-bill-alt"></i> '.__('lang_v1.add_edit_payment').
                                    '</a></li>';
                                }

                                if (auth()->user()->can('sell.payments') ||
                                    auth()->user()->can('edit_sell_payment') ||
                                    auth()->user()->can('delete_sell_payment')) {
                                    if ($row->payment_status != 'paid') {
                                        $html .= '<li><a href="'.action([\App\Http\Controllers\TransactionPaymentController::class, 'addPayment'], [$row->id]).'" class="add_payment_modal"><i class="fas fa-money-bill-alt"></i> '.__('purchase.add_payment').'</a></li>';
                                    }

                                    $html .= '<li><a href="'.action([\App\Http\Controllers\TransactionPaymentController::class, 'show'], [$row->id]).'" class="view_payment_modal"><i class="fas fa-money-bill-alt"></i> '.__('purchase.view_payments').'</a></li>';
                                }

                                if (auth()->user()->can('sell.create') || auth()->user()->can('direct_sell.access')) {
                                    // $html .= '<li><a href="' . action([\App\Http\Controllers\SellController::class, 'duplicateSell'], [$row->id]) . '"><i class="fas fa-copy"></i> ' . __("lang_v1.duplicate_sell") . '</a></li>';

                                    $html .= '<li><a href="'.action([\App\Http\Controllers\SellReturnController::class, 'add'], [$row->id]).'"><i class="fas fa-undo"></i> '.__('lang_v1.sell_return').'</a></li>

                                    <li><a href="'.action([\App\Http\Controllers\SellPosController::class, 'showInvoiceUrl'], [$row->id]).'" class="view_invoice_url"><i class="fas fa-eye"></i> '.__('lang_v1.view_invoice_url').'</a></li>';
                                }
                            }

                            $html .= '<li><a href="#" data-href="'.action([\App\Http\Controllers\NotificationController::class, 'getTemplate'], ['transaction_id' => $row->id, 'template_for' => 'new_sale']).'" class="btn-modal" data-container=".view_modal"><i class="fa fa-envelope" aria-hidden="true"></i>'.__('lang_v1.new_sale_notification').'</a></li>';
                        } else {
                            $html .= '<li><a href="#" data-href="'.action([\App\Http\Controllers\SellController::class, 'viewMedia'], ['model_id' => $row->id, 'model_type' => \App\Transaction::class, 'model_media_type' => 'shipping_document']).'" class="btn-modal" data-container=".view_modal"><i class="fas fa-paperclip" aria-hidden="true"></i>'.__('lang_v1.shipping_documents').'</a></li>';
                        }

                        $html .= '</ul></div>';

                        return $html;
                    }
                )
                ->removeColumn('id')
                ->editColumn(
                    'final_total',
                    '<span class="final-total" data-orig-value="{{$final_total}}">@format_currency($final_total)</span>'
                )
                ->editColumn(
                    'tax_amount',
                    '<span class="total-tax" data-orig-value="{{$tax_amount}}">@format_currency($tax_amount)</span>'
                )
                ->editColumn(
                    'total_paid',
                    '<span class="total-paid" data-orig-value="{{$total_paid}}">@format_currency($total_paid)</span>'
                )
                ->editColumn(
                    'total_before_tax',
                    '<span class="total_before_tax" data-orig-value="{{$total_before_tax}}">@format_currency($total_before_tax)</span>'
                )
                ->editColumn(
                    'discount_amount',
                    function ($row) {
                        $discount = !empty($row->discount_amount) ? $row->discount_amount : 0;

                        if (!empty($discount) && $row->discount_type == 'percentage') {
                            $discount = $row->total_before_tax * ($discount / 100);
                        }

                        return '<span class="total-discount" data-orig-value="' . $discount . '">' . $this->transactionUtil->num_f($discount, true) . '</span>';
                    }
                )
                ->editColumn('transaction_date', '{{@format_datetime($transaction_date)}}')
                ->editColumn(
                    'payment_status',
                    function ($row) {
                        $payment_status = Transaction::getPaymentStatus($row);

                        return (string) view('sell.partials.payment_status', ['payment_status' => $payment_status, 'id' => $row->id]);
                    }
                )
                ->editColumn(
                    'types_of_service_name',
                    '<span class="service-type-label" data-orig-value="{{$types_of_service_name}}" data-status-name="{{$types_of_service_name}}">{{$types_of_service_name}}</span>'
                )
                ->addColumn('total_remaining', function ($row) {
                    $total_remaining = $row->final_total - $row->total_paid;
                    $total_remaining_html = '<span class="payment_due" data-orig-value="' . $total_remaining . '">' . $this->transactionUtil->num_f($total_remaining, true) . '</span>';

                    return $total_remaining_html;
                })
                ->addColumn('return_due', function ($row) {
                    $return_due_html = '';
                    if (!empty($row->return_exists)) {
                        $return_due = $row->amount_return - $row->return_paid;
                        $return_due_html .= '<a href="' . action([\App\Http\Controllers\TransactionPaymentController::class, 'show'], [$row->return_transaction_id]) . '" class="view_purchase_return_payment_modal"><span class="sell_return_due" data-orig-value="' . $return_due . '">' . $this->transactionUtil->num_f($return_due, true) . '</span></a>';
                    }

                    return $return_due_html;
                })
                ->editColumn('invoice_no', function ($row) use ($is_crm) {
                    $invoice_no = $row->invoice_no;
                    if (! empty($row->woocommerce_order_id)) {
                        $invoice_no .= ' <i class="fab fa-wordpress text-primary no-print" title="'.__('lang_v1.synced_from_woocommerce').'"></i>';
                    }
                    if (! empty($row->return_exists)) {
                        $invoice_no .= ' &nbsp;<small class="label bg-red label-round no-print" title="'.__('lang_v1.some_qty_returned_from_sell').'"><i class="fas fa-undo"></i></small>';
                    }
                    if (! empty($row->is_recurring)) {
                        $invoice_no .= ' &nbsp;<small class="label bg-red label-round no-print" title="'.__('lang_v1.subscribed_invoice').'"><i class="fas fa-recycle"></i></small>';
                    }

                    if (! empty($row->recur_parent_id)) {
                        $invoice_no .= ' &nbsp;<small class="label bg-info label-round no-print" title="'.__('lang_v1.subscription_invoice').'"><i class="fas fa-recycle"></i></small>';
                    }

                    if (! empty($row->is_export)) {
                        $invoice_no .= '</br><small class="label label-default no-print" title="'.__('lang_v1.export').'">'.__('lang_v1.export').'</small>';
                    }

                    if ($is_crm && ! empty($row->crm_is_order_request)) {
                        $invoice_no .= ' &nbsp;<small class="label bg-yellow label-round no-print" title="'.__('crm::lang.order_request').'"><i class="fas fa-tasks"></i></small>';
                    }

                    return $invoice_no;
                })
                ->editColumn('shipping_status', function ($row) use ($shipping_statuses) {
                    $status_color = ! empty($this->shipping_status_colors[$row->shipping_status]) ? $this->shipping_status_colors[$row->shipping_status] : 'bg-gray';
                    $status = ! empty($row->shipping_status) ? '<a href="#" class="btn-modal" data-href="'.action([\App\Http\Controllers\SellController::class, 'editShipping'], [$row->id]).'" data-container=".view_modal"><span class="label '.$status_color.'">'.$shipping_statuses[$row->shipping_status].'</span></a>' : '';

                    return $status;
                })
                ->addColumn('conatct_name', '@if(!empty($supplier_business_name)) {{$supplier_business_name}}, <br> @endif {{$name}}')
                ->editColumn('total_items', '{{@format_quantity($total_items)}}')
                ->filterColumn('conatct_name', function ($query, $keyword) {
                    $query->where(function ($q) use ($keyword) {
                        $q->where('contacts.name', 'like', "%{$keyword}%")
                        ->orWhere('contacts.supplier_business_name', 'like', "%{$keyword}%");
                    });
                })
                ->addColumn('payment_methods', function ($row) use ($payment_types) {
                    $methods = array_unique($row->payment_lines->pluck('method')->toArray());
                    $count = count($methods);
                    $payment_method = '';
                    if ($count == 1) {
                        $payment_method = $payment_types[$methods[0]] ?? '';
                    } elseif ($count > 1) {
                        $payment_method = __('lang_v1.checkout_multi_pay');
                    }

                    $html = ! empty($payment_method) ? '<span class="payment-method" data-orig-value="'.$payment_method.'" data-status-name="'.$payment_method.'">'.$payment_method.'</span>' : '';

                    return $html;
                })
                ->editColumn('status', function ($row) use ($sales_order_statuses, $is_admin) {
                    $status = '';

                    if ($row->type == 'sales_order') {
                        if ($is_admin && $row->status != 'completed') {
                            $status = '<span class="edit-so-status label '.$sales_order_statuses[$row->status]['class'].'" data-href="'.action([\App\Http\Controllers\SalesOrderController::class, 'getEditSalesOrderStatus'], ['id' => $row->id]).'">'.$sales_order_statuses[$row->status]['label'].'</span>';
                        } else {
                            $status = '<span class="label '.$sales_order_statuses[$row->status]['class'].'" >'.$sales_order_statuses[$row->status]['label'].'</span>';
                        }
                    }

                    return $status;
                })
                ->editColumn('zatca_status', function ($row) use ($is_zatca) {
                    $status = '';
                    if($is_zatca){
                        if (empty($row->zatca_status) || is_null($row->zatca_status)) {
                            $status = '<small class="label bg-primary tw-dw-btn-xs no-print">'.__('zatcaintegrationksa::lang.pending').'</small>';
                        } elseif ($row->zatca_status == 'success') {
                            $status = '<small class="label bg-light-green tw-dw-btn-xs no-print">' . ucfirst($row->zatca_status) . '</small>';
                        } elseif ($row->zatca_status == 'failed') {
                                $lastDoc = \Modules\ZatcaIntegrationKsa\Entities\ZatcaDocument::where('transaction_id', $row->id)
                                    ->where('sent_to_zatca_status', 'failed')
                                    ->orderBy('created_at', 'desc')
                                    ->latest()
                                    ->first();

                                if ($lastDoc && $lastDoc->response_source == 'self' && !empty($lastDoc->response)) {
                                    $safeMsg = htmlspecialchars($lastDoc->response, ENT_QUOTES, 'UTF-8');
                                    $status = '<small class="label bg-red tw-dw-btn-xs no-print mb-1">' . ucfirst($row->zatca_status) . '</small><br><span class="text-danger">' . $safeMsg . '</span>';
                                } else if ($lastDoc) {
                                    $label = '<small class="label bg-red tw-dw-btn-xs no-print mb-5">' . ucfirst($row->zatca_status) . '</small>';
                                    $button = '<a href="' . action([\Modules\ZatcaIntegrationKsa\Http\Controllers\ZatcaInvoiceController::class, 'showInvoiceError'], ['id' => $row->id]) . '" class="btn btn-xs btn-danger no-print mt-2 status_fail" style="margin-top: 10px;">' . e(__('zatcaintegrationksa::lang.view_error')) . '</a>';
                                    $status = $label . '<br>' . $button;
                                }
                        }
                    }
                    return $status;
                })
                ->editColumn('so_qty_remaining', '{{@format_quantity($so_qty_remaining)}}')
                ->setRowAttr([
                    'data-href' => function ($row) {
                        if (auth()->user()->can('sell.view') || auth()->user()->can('view_own_sell_only')) {
                            return  action([\App\Http\Controllers\SellController::class, 'show'], [$row->id]);
                        } else {
                            return '';
                        }
                    }, ]);

            $rawColumns = ['final_total', 'action', 'total_paid', 'total_remaining', 'payment_status', 'invoice_no', 'discount_amount', 'tax_amount', 'total_before_tax', 'shipping_status', 'types_of_service_name', 'payment_methods', 'return_due', 'conatct_name', 'status', 'zatca_status'];

            return $datatable->rawColumns($rawColumns)
                      ->make(true);
        }

        $business_locations = BusinessLocation::forDropdown($business_id, false);
        $customers = Contact::customersDropdown($business_id, false);
        $sales_representative = User::forDropdown($business_id, false, false, true);

        //Commission agent filter
        $is_cmsn_agent_enabled = request()->session()->get('business.sales_cmsn_agnt');
        $commission_agents = [];
        if (! empty($is_cmsn_agent_enabled)) {
            $commission_agents = User::forDropdown($business_id, false, true, true);
        }

        //Service staff filter
        $service_staffs = null;
        if ($this->productUtil->isModuleEnabled('service_staff')) {
            $service_staffs = $this->productUtil->serviceStaffDropdown($business_id);
        }

        $shipping_statuses = $this->transactionUtil->shipping_statuses();

        $sources = $this->transactionUtil->getSources($business_id);
        if ($is_woocommerce) {
            $sources['woocommerce'] = 'Woocommerce';
        }

        $payment_types = $this->transactionUtil->payment_types(null, true, $business_id);


        return view('sell.index')
        ->with(compact('business_locations', 'customers', 'is_woocommerce', 'sales_representative', 'is_cmsn_agent_enabled', 'commission_agents', 'service_staffs', 'is_tables_enabled', 'is_service_staff_enabled', 'is_types_service_enabled', 'shipping_statuses', 'sources', 'payment_types'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        $sale_type = request()->get('sale_type', '');

        if ($sale_type == 'sales_order') {
            if (! auth()->user()->can('so.create')) {
                abort(403, 'Unauthorized action.');
            }
        } else {
            if (! auth()->user()->can('direct_sell.access')) {
                abort(403, 'Unauthorized action.');
            }
        }

        $business_id = request()->session()->get('user.business_id');

        //Check if subscribed or not, then check for users quota
        if (! $this->moduleUtil->isSubscribed($business_id)) {
            return $this->moduleUtil->expiredResponse();
        } elseif (! $this->moduleUtil->isQuotaAvailable('invoices', $business_id)) {
            return $this->moduleUtil->quotaExpiredResponse('invoices', $business_id, action([\App\Http\Controllers\SellController::class, 'index']));
        }

        $walk_in_customer = $this->contactUtil->getWalkInCustomer($business_id);

        $business_details = $this->businessUtil->getDetails($business_id);
        $taxes = TaxRate::forBusinessDropdown($business_id, true, true);

        $business_locations = BusinessLocation::forDropdown($business_id, false, true);
        $bl_attributes = $business_locations['attributes'];
        $business_locations = $business_locations['locations'];

        $default_location = null;
        foreach ($business_locations as $id => $name) {
            $default_location = BusinessLocation::findOrFail($id);
            break;
        }

        $commsn_agnt_setting = $business_details->sales_cmsn_agnt;
        $commission_agent = [];
        if ($commsn_agnt_setting == 'user') {
            $commission_agent = User::forDropdown($business_id);
        } elseif ($commsn_agnt_setting == 'cmsn_agnt') {
            $commission_agent = User::saleCommissionAgentsDropdown($business_id);
        }

        $types = [];
        if (auth()->user()->can('supplier.create')) {
            $types['supplier'] = __('report.supplier');
        }
        if (auth()->user()->can('customer.create')) {
            $types['customer'] = __('report.customer');
        }
        if (auth()->user()->can('supplier.create') && auth()->user()->can('customer.create')) {
            $types['both'] = __('lang_v1.both_supplier_customer');
        }
        $customer_groups = CustomerGroup::forDropdown($business_id);

        $payment_line = $this->dummyPaymentLine;
        $payment_types = $this->transactionUtil->payment_types(null, true, $business_id);

        //Selling Price Group Dropdown
        $price_groups = SellingPriceGroup::forDropdown($business_id);

        $default_price_group_id = ! empty($default_location->selling_price_group_id) && array_key_exists($default_location->selling_price_group_id, $price_groups) ? $default_location->selling_price_group_id : null;

        $default_datetime = $this->businessUtil->format_date('now', true);

        $pos_settings = empty($business_details->pos_settings) ? $this->businessUtil->defaultPosSettings() : json_decode($business_details->pos_settings, true);

        $invoice_schemes = InvoiceScheme::forDropdown($business_id);
        $default_invoice_schemes = InvoiceScheme::getDefault($business_id);
        if (! empty($default_location) && !empty($default_location->sale_invoice_scheme_id)) {
            $default_invoice_schemes = InvoiceScheme::where('business_id', $business_id)
                                        ->findorfail($default_location->sale_invoice_scheme_id);
        }
        $shipping_statuses = $this->transactionUtil->shipping_statuses();

        //Types of service
        $types_of_service = [];
        if ($this->moduleUtil->isModuleEnabled('types_of_service')) {
            $types_of_service = TypesOfService::forDropdown($business_id);
        }

        //Accounts
        $accounts = [];
        if ($this->moduleUtil->isModuleEnabled('account')) {
            $accounts = Account::forDropdown($business_id, true, false);
        }

        $status = request()->get('status', '');

        $statuses = Transaction::sell_statuses();

        if ($sale_type == 'sales_order') {
            $status = 'ordered';
        }

        $is_order_request_enabled = false;
        $is_crm = $this->moduleUtil->isModuleInstalled('Crm');
        if ($is_crm) {
            $crm_settings = Business::where('id', auth()->user()->business_id)
                                ->value('crm_settings');
            $crm_settings = ! empty($crm_settings) ? json_decode($crm_settings, true) : [];

            if (! empty($crm_settings['enable_order_request'])) {
                $is_order_request_enabled = true;
            }
        }

        //Added check because $users is of no use if enable_contact_assign if false
        $users = config('constants.enable_contact_assign') ? User::forDropdown($business_id, false, false, false, true) : [];

        $change_return = $this->dummyPaymentLine;

        return view('sell.create')
            ->with(compact(
                'business_details',
                'taxes',
                'walk_in_customer',
                'business_locations',
                'bl_attributes',
                'default_location',
                'commission_agent',
                'types',
                'customer_groups',
                'payment_line',
                'payment_types',
                'price_groups',
                'default_datetime',
                'pos_settings',
                'invoice_schemes',
                'default_invoice_schemes',
                'types_of_service',
                'accounts',
                'shipping_statuses',
                'status',
                'sale_type',
                'statuses',
                'is_order_request_enabled',
                'users',
                'default_price_group_id',
                'change_return'
            ));
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        // if (!auth()->user()->can('sell.view') && !auth()->user()->can('direct_sell.access') && !auth()->user()->can('view_own_sell_only')) {
        //     abort(403, 'Unauthorized action.');
        // }

        $business_id = request()->session()->get('user.business_id');
        $taxes = TaxRate::where('business_id', $business_id)
                            ->pluck('name', 'id');
        $query = Transaction::where('business_id', $business_id)
                    ->where('id', $id)
                    ->with(['contact', 'delivery_person_user', 'sell_lines' => function ($q) {
                        $q->whereNull('parent_sell_line_id');
                    }, 'sell_lines.product', 'sell_lines.product.unit', 'sell_lines.product.second_unit', 'sell_lines.variations', 'sell_lines.variations.product_variation', 'payment_lines', 'sell_lines.modifiers', 'sell_lines.lot_details', 'tax', 'sell_lines.sub_unit', 'table', 'service_staff', 'sell_lines.service_staff', 'types_of_service', 'sell_lines.warranties', 'media']);

        if (! auth()->user()->can('sell.view') && ! auth()->user()->can('direct_sell.access') && auth()->user()->can('view_own_sell_only')) {
            $query->where('transactions.created_by', request()->session()->get('user.id'));
        }

        $sell = $query->firstOrFail();

        $activities = Activity::forSubject($sell)
           ->with(['causer', 'subject'])
           ->latest()
           ->get();

        $line_taxes = [];
        foreach ($sell->sell_lines as $key => $value) {
            if (! empty($value->sub_unit_id)) {
                $formated_sell_line = $this->transactionUtil->recalculateSellLineTotals($business_id, $value);
                $sell->sell_lines[$key] = $formated_sell_line;
            }

            if (! empty($taxes[$value->tax_id])) {
                if (isset($line_taxes[$taxes[$value->tax_id]])) {
                    $line_taxes[$taxes[$value->tax_id]] += ($value->item_tax * $value->quantity);
                } else {
                    $line_taxes[$taxes[$value->tax_id]] = ($value->item_tax * $value->quantity);
                }
            }
        }

        $payment_types = $this->transactionUtil->payment_types($sell->location_id, true);
        $order_taxes = [];
        if (! empty($sell->tax)) {
            if ($sell->tax->is_tax_group) {
                $order_taxes = $this->transactionUtil->sumGroupTaxDetails($this->transactionUtil->groupTaxDetails($sell->tax, $sell->tax_amount));
            } else {
                $order_taxes[$sell->tax->name] = $sell->tax_amount;
            }
        }

        $business_details = $this->businessUtil->getDetails($business_id);
        $pos_settings = empty($business_details->pos_settings) ? $this->businessUtil->defaultPosSettings() : json_decode($business_details->pos_settings, true);
        $shipping_statuses = $this->transactionUtil->shipping_statuses();
        $shipping_status_colors = $this->shipping_status_colors;
        $common_settings = session()->get('business.common_settings');
        $is_warranty_enabled = ! empty($common_settings['enable_product_warranty']) ? true : false;

        $statuses = Transaction::sell_statuses();

        if ($sell->type == 'sales_order') {
            $sales_order_statuses = Transaction::sales_order_statuses(true);
            $statuses = array_merge($statuses, $sales_order_statuses);
        }
        $status_color_in_activity = Transaction::sales_order_statuses();
        $sales_orders = $sell->salesOrders();

        return view('sale_pos.show')
            ->with(compact(
                'taxes',
                'sell',
                'payment_types',
                'order_taxes',
                'pos_settings',
                'shipping_statuses',
                'shipping_status_colors',
                'is_warranty_enabled',
                'activities',
                'statuses',
                'status_color_in_activity',
                'sales_orders',
                'line_taxes'
            ));
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        if (! auth()->user()->can('direct_sell.update') && ! auth()->user()->can('so.update')) {
            abort(403, 'Unauthorized action.');
        }

        //Check if the transaction can be edited or not.
        $edit_days = request()->session()->get('business.transaction_edit_days');
        if (! $this->transactionUtil->canBeEdited($id, $edit_days)) {
            return back()
                ->with('status', ['success' => 0,
                    'msg' => __('messages.transaction_edit_not_allowed', ['days' => $edit_days]), ]);
        }

        //Check if return exist then not allowed
        if ($this->transactionUtil->isReturnExist($id)) {
            return back()->with('status', ['success' => 0,
                'msg' => __('lang_v1.return_exist')]);
        }

        $business_id = request()->session()->get('user.business_id');

        $business_details = $this->businessUtil->getDetails($business_id);
        $taxes = TaxRate::forBusinessDropdown($business_id, true, true);

        $transaction = Transaction::where('business_id', $business_id)
                            ->with(['price_group', 'types_of_service', 'media', 'media.uploaded_by_user'])
                            ->whereIn('type', ['sell', 'sales_order'])
                            ->findorfail($id);

        // If ZATCA module is installed and this transaction is successfully synced, prevent edit
        $moduleUtil = new ModuleUtil();
        if ($moduleUtil->isModuleInstalled('ZatcaIntegrationKsa')) {
            if (!empty($transaction) && $transaction->zatca_status === 'success') {
                return back()->with('status', ['success' => 0,
                    'msg' => __('lang_v1.invoice_synced_to_zatca_cannot_be_edited')]);
            }
        }

        if ($transaction->type == 'sales_order' && ! auth()->user()->can('so.update')) {
            abort(403, 'Unauthorized action.');
        }

        $location_id = $transaction->location_id;
        $location_printer_type = BusinessLocation::find($location_id)->receipt_printer_type;

        $sell_details = TransactionSellLine::join(
                            'products AS p',
                            'transaction_sell_lines.product_id',
                            '=',
                            'p.id'
                        )
                        ->join(
                            'variations AS variations',
                            'transaction_sell_lines.variation_id',
                            '=',
                            'variations.id'
                        )
                        ->join(
                            'product_variations AS pv',
                            'variations.product_variation_id',
                            '=',
                            'pv.id'
                        )
                        ->leftjoin('variation_location_details AS vld', function ($join) use ($location_id) {
                            $join->on('variations.id', '=', 'vld.variation_id')
                                ->where('vld.location_id', '=', $location_id);
                        })
                        ->leftjoin('units', 'units.id', '=', 'p.unit_id')
                        ->leftjoin('units as u', 'p.secondary_unit_id', '=', 'u.id')
                        ->where('transaction_sell_lines.transaction_id', $id)
                        ->with(['warranties', 'so_line'])
                        ->select(
                            DB::raw("IF(pv.is_dummy = 0, CONCAT(p.name, ' (', pv.name, ':',variations.name, ')'), p.name) AS product_name"),
                            'p.id as product_id',
                            'p.image as product_image',
                            'p.enable_stock',
                            'p.name as product_actual_name',
                            'p.type as product_type',
                            'pv.name as product_variation_name',
                            'pv.is_dummy as is_dummy',
                            'variations.name as variation_name',
                            'variations.sub_sku',
                            'p.barcode_type',
                            'p.enable_sr_no',
                            'variations.id as variation_id',
                            'units.short_name as unit',
                            'units.allow_decimal as unit_allow_decimal',
                            'u.short_name as second_unit',
                            'transaction_sell_lines.secondary_unit_quantity',
                            'transaction_sell_lines.tax_id as tax_id',
                            'transaction_sell_lines.item_tax as item_tax',
                            'transaction_sell_lines.unit_price as default_sell_price',
                            'transaction_sell_lines.unit_price_inc_tax as sell_price_inc_tax',
                            'transaction_sell_lines.unit_price_before_discount as unit_price_before_discount',
                            'transaction_sell_lines.id as transaction_sell_lines_id',
                            'transaction_sell_lines.id',
                            'transaction_sell_lines.quantity as quantity_ordered',
                            'transaction_sell_lines.sell_line_note as sell_line_note',
                            'transaction_sell_lines.parent_sell_line_id',
                            'transaction_sell_lines.lot_no_line_id',
                            'transaction_sell_lines.line_discount_type',
                            'transaction_sell_lines.line_discount_amount',
                            'transaction_sell_lines.res_service_staff_id',
                            'units.id as unit_id',
                            'transaction_sell_lines.sub_unit_id',
                            'transaction_sell_lines.so_line_id',
                            DB::raw('vld.qty_available + transaction_sell_lines.quantity AS qty_available')
                        )
                        ->get();

        if (! empty($sell_details)) {
            foreach ($sell_details as $key => $value) {

                $variation = Variation::with('media')->findOrFail($value->variation_id);
                $sell_details[$key]->media = $variation->media;

                //If modifier or combo sell line then unset
                if (! empty($sell_details[$key]->parent_sell_line_id)) {
                    unset($sell_details[$key]);
                } else {
                    if ($transaction->status != 'final') {
                        $actual_qty_avlbl = $value->qty_available - $value->quantity_ordered;
                        $sell_details[$key]->qty_available = $actual_qty_avlbl;
                        $value->qty_available = $actual_qty_avlbl;
                    }

                    $sell_details[$key]->formatted_qty_available = $this->productUtil->num_f($value->qty_available, false, null, true);
                    $lot_numbers = [];
                    if (request()->session()->get('business.enable_lot_number') == 1) {
                        $lot_number_obj = $this->transactionUtil->getLotNumbersFromVariation($value->variation_id, $business_id, $location_id);
                        foreach ($lot_number_obj as $lot_number) {
                            //If lot number is selected added ordered quantity to lot quantity available
                            if ($value->lot_no_line_id == $lot_number->purchase_line_id) {
                                $lot_number->qty_available += $value->quantity_ordered;
                            }

                            $lot_number->qty_formated = $this->transactionUtil->num_f($lot_number->qty_available);
                            $lot_numbers[] = $lot_number;
                        }
                    }
                    $sell_details[$key]->lot_numbers = $lot_numbers;

                    if (! empty($value->sub_unit_id)) {
                        $value = $this->productUtil->changeSellLineUnit($business_id, $value);
                        $sell_details[$key] = $value;
                    }

                    if ($this->transactionUtil->isModuleEnabled('modifiers')) {
                        //Add modifier details to sel line details
                        $sell_line_modifiers = TransactionSellLine::where('parent_sell_line_id', $sell_details[$key]->transaction_sell_lines_id)
                            ->where('children_type', 'modifier')
                            ->get();
                        $modifiers_ids = [];
                        if (count($sell_line_modifiers) > 0) {
                            $sell_details[$key]->modifiers = $sell_line_modifiers;
                            foreach ($sell_line_modifiers as $sell_line_modifier) {
                                $modifiers_ids[] = $sell_line_modifier->variation_id;
                            }
                        }
                        $sell_details[$key]->modifiers_ids = $modifiers_ids;

                        //add product modifier sets for edit
                        $this_product = Product::find($sell_details[$key]->product_id);
                        if (count($this_product->modifier_sets) > 0) {
                            $sell_details[$key]->product_ms = $this_product->modifier_sets;
                        }
                    }

                    //Get details of combo items
                    if ($sell_details[$key]->product_type == 'combo') {
                        $sell_line_combos = TransactionSellLine::where('parent_sell_line_id', $sell_details[$key]->transaction_sell_lines_id)
                            ->where('children_type', 'combo')
                            ->get()
                            ->toArray();
                        if (! empty($sell_line_combos)) {
                            $sell_details[$key]->combo_products = $sell_line_combos;
                        }

                        //calculate quantity available if combo product
                        $combo_variations = [];
                        foreach ($sell_line_combos as $combo_line) {
                            $combo_variations[] = [
                                'variation_id' => $combo_line['variation_id'],
                                'quantity' => $combo_line['quantity'] / $sell_details[$key]->quantity_ordered,
                                'unit_id' => null,
                            ];
                        }
                        $sell_details[$key]->qty_available =
                        $this->productUtil->calculateComboQuantity($location_id, $combo_variations);

                        if ($transaction->status == 'final') {
                            $sell_details[$key]->qty_available = $sell_details[$key]->qty_available + $sell_details[$key]->quantity_ordered;
                        }

                        $sell_details[$key]->formatted_qty_available = $this->productUtil->num_f($sell_details[$key]->qty_available, false, null, true);
                    }
                }
            }
        }

        $commsn_agnt_setting = $business_details->sales_cmsn_agnt;
        $commission_agent = [];
        if ($commsn_agnt_setting == 'user') {
            $commission_agent = User::forDropdown($business_id);
        } elseif ($commsn_agnt_setting == 'cmsn_agnt') {
            $commission_agent = User::saleCommissionAgentsDropdown($business_id);
        }

        $types = [];
        if (auth()->user()->can('supplier.create')) {
            $types['supplier'] = __('report.supplier');
        }
        if (auth()->user()->can('customer.create')) {
            $types['customer'] = __('report.customer');
        }
        if (auth()->user()->can('supplier.create') && auth()->user()->can('customer.create')) {
            $types['both'] = __('lang_v1.both_supplier_customer');
        }
        $customer_groups = CustomerGroup::forDropdown($business_id);

        $transaction->transaction_date = $this->transactionUtil->format_date($transaction->transaction_date, true);

        $pos_settings = empty($business_details->pos_settings) ? $this->businessUtil->defaultPosSettings() : json_decode($business_details->pos_settings, true);

        $waiters = [];
        if ($this->productUtil->isModuleEnabled('service_staff') && ! empty($pos_settings['inline_service_staff'])) {
            $waiters = $this->productUtil->serviceStaffDropdown($business_id);
        }

        $invoice_schemes = [];
        $default_invoice_schemes = null;

        if ($transaction->status == 'draft') {
            $invoice_schemes = InvoiceScheme::forDropdown($business_id);
            $default_invoice_schemes = InvoiceScheme::getDefault($business_id);
        }

        $redeem_details = [];
        if (request()->session()->get('business.enable_rp') == 1) {
            $redeem_details = $this->transactionUtil->getRewardRedeemDetails($business_id, $transaction->contact_id);

            $redeem_details['points'] += $transaction->rp_redeemed;
            $redeem_details['points'] -= $transaction->rp_earned;
        }

        $edit_discount = auth()->user()->can('edit_product_discount_from_sale_screen');
        $edit_price = auth()->user()->can('edit_product_price_from_sale_screen');

        //Accounts
        $accounts = [];
        if ($this->moduleUtil->isModuleEnabled('account')) {
            $accounts = Account::forDropdown($business_id, true, false);
        }

        $shipping_statuses = $this->transactionUtil->shipping_statuses();

        $common_settings = session()->get('business.common_settings');
        $is_warranty_enabled = ! empty($common_settings['enable_product_warranty']) ? true : false;
        $warranties = $is_warranty_enabled ? Warranty::forDropdown($business_id) : [];

        $statuses = Transaction::sell_statuses();

        $is_order_request_enabled = false;
        $is_crm = $this->moduleUtil->isModuleInstalled('Crm');
        if ($is_crm) {
            $crm_settings = Business::where('id', auth()->user()->business_id)
                                ->value('crm_settings');
            $crm_settings = ! empty($crm_settings) ? json_decode($crm_settings, true) : [];

            if (! empty($crm_settings['enable_order_request'])) {
                $is_order_request_enabled = true;
            }
        }

        $sales_orders = [];
        if (! empty($pos_settings['enable_sales_order']) || $is_order_request_enabled) {
            $sales_orders = Transaction::where('business_id', $business_id)
                                ->where('type', 'sales_order')
                                ->where('contact_id', $transaction->contact_id)
                                ->where(function ($q) use ($transaction) {
                                    $q->where('status', '!=', 'completed');

                                    if (! empty($transaction->sales_order_ids)) {
                                        $q->orWhereIn('id', $transaction->sales_order_ids);
                                    }
                                })
                                ->pluck('invoice_no', 'id');
        }

        $payment_types = $this->transactionUtil->payment_types($transaction->location_id, false, $business_id);

        $payment_lines = $this->transactionUtil->getPaymentDetails($id);
        //If no payment lines found then add dummy payment line.
        if (empty($payment_lines)) {
            $payment_lines[] = $this->dummyPaymentLine;
        }

        $change_return = $this->dummyPaymentLine;

        $customer_due = $this->transactionUtil->getContactDue($transaction->contact_id, $transaction->business_id);

        $customer_due = $customer_due != 0 ? $this->transactionUtil->num_f($customer_due, true) : '';

        //Added check because $users is of no use if enable_contact_assign if false
        $users = config('constants.enable_contact_assign') ? User::forDropdown($business_id, false, false, false, true) : [];

        return view('sell.edit')
            ->with(compact('business_details', 'taxes', 'sell_details', 'transaction', 'commission_agent', 'types', 'customer_groups', 'pos_settings', 'waiters', 'invoice_schemes', 'default_invoice_schemes', 'redeem_details', 'edit_discount', 'edit_price', 'shipping_statuses', 'warranties', 'statuses', 'sales_orders', 'payment_types', 'accounts', 'payment_lines', 'change_return', 'is_order_request_enabled', 'customer_due', 'users'));
    }

    /**
     * Display a listing sell drafts.
     *
     * @return \Illuminate\Http\Response
     */
    public function getDrafts()
    {
        if (! auth()->user()->can('draft.view_all') && ! auth()->user()->can('draft.view_own')) {
            abort(403, 'Unauthorized action.');
        }

        $business_id = request()->session()->get('user.business_id');

        $business_locations = BusinessLocation::forDropdown($business_id, false);
        $customers = Contact::customersDropdown($business_id, false);

        $sales_representative = User::forDropdown($business_id, false, false, true);

        return view('sale_pos.draft')
            ->with(compact('business_locations', 'customers', 'sales_representative'));
    }

    /**
     * Display a listing sell quotations.
     *
     * @return \Illuminate\Http\Response
     */
    public function getQuotations()
    {
        if (! auth()->user()->can('quotation.view_all') && ! auth()->user()->can('quotation.view_own')) {
            abort(403, 'Unauthorized action.');
        }

        $business_id = request()->session()->get('user.business_id');

        $business_locations = BusinessLocation::forDropdown($business_id, false);
        $customers = Contact::customersDropdown($business_id, false);

        $sales_representative = User::forDropdown($business_id, false, false, true);

        return view('sale_pos.quotations')
                ->with(compact('business_locations', 'customers', 'sales_representative'));
    }

    /**
     * Send the datatable response for draft or quotations.
     *
     * @return \Illuminate\Http\Response
     */
    public function getDraftDatables()
    {
        if (request()->ajax()) {
            $business_id = request()->session()->get('user.business_id');
            $is_quotation = request()->input('is_quotation', 0);

            $is_woocommerce = $this->moduleUtil->isModuleInstalled('Woocommerce');

            $sells = Transaction::leftJoin('contacts', 'transactions.contact_id', '=', 'contacts.id')
                ->leftJoin('users as u', 'transactions.created_by', '=', 'u.id')
                ->join(
                    'business_locations AS bl',
                    'transactions.location_id',
                    '=',
                    'bl.id'
                )
                ->leftJoin('transaction_sell_lines as tsl', function ($join) {
                    $join->on('transactions.id', '=', 'tsl.transaction_id')
                        ->whereNull('tsl.parent_sell_line_id');
                })
                ->where('transactions.business_id', $business_id)
                ->where('transactions.type', 'sell')
                ->where('transactions.status', 'draft')
                ->select(
                    'transactions.id',
                    'transaction_date',
                    'invoice_no',
                    'contacts.name',
                    'contacts.mobile',
                    'contacts.supplier_business_name',
                    'bl.name as business_location',
                    'is_direct_sale',
                    'sub_status',
                    DB::raw('COUNT( DISTINCT tsl.id) as total_items'),
                    DB::raw('SUM(tsl.quantity) as total_quantity'),
                    DB::raw("CONCAT(COALESCE(u.surname, ''), ' ', COALESCE(u.first_name, ''), ' ', COALESCE(u.last_name, '')) as added_by"),
                    'transactions.is_export'
                );

            if ($is_quotation == 1) {
                $sells->where('transactions.sub_status', 'quotation');

                if (! auth()->user()->can('quotation.view_all') && auth()->user()->can('quotation.view_own')) {
                    $sells->where('transactions.created_by', request()->session()->get('user.id'));
                }
            } else {
                if (! auth()->user()->can('draft.view_all') && auth()->user()->can('draft.view_own')) {
                    $sells->where('transactions.created_by', request()->session()->get('user.id'));
                }
            }

            $permitted_locations = auth()->user()->permitted_locations();
            if ($permitted_locations != 'all') {
                $sells->whereIn('transactions.location_id', $permitted_locations);
            }

            if (! empty(request()->start_date) && ! empty(request()->end_date)) {
                $start = request()->start_date;
                $end = request()->end_date;
                $sells->whereDate('transaction_date', '>=', $start)
                            ->whereDate('transaction_date', '<=', $end);
            }

            if (request()->has('location_id')) {
                $location_id = request()->get('location_id');
                if (! empty($location_id)) {
                    $sells->where('transactions.location_id', $location_id);
                }
            }

            if (request()->has('created_by')) {
                $created_by = request()->get('created_by');
                if (! empty($created_by)) {
                    $sells->where('transactions.created_by', $created_by);
                }
            }

            if (! empty(request()->customer_id)) {
                $customer_id = request()->customer_id;
                $sells->where('contacts.id', $customer_id);
            }

            if ($is_woocommerce) {
                $sells->addSelect('transactions.woocommerce_order_id');
            }

            $sells->groupBy('transactions.id');

            return Datatables::of($sells)
                 ->addColumn(
                    'action', function ($row) {
                        $html = '<div class="btn-group">
                                <button type="button" class="tw-dw-btn tw-dw-btn-xs tw-dw-btn-outline  tw-dw-btn-info tw-w-max dropdown-toggle" 
                                    data-toggle="dropdown" aria-expanded="false">'.
                                    __('messages.actions').
                                    '<span class="caret"></span><span class="sr-only">Toggle Dropdown
                                    </span>
                                </button>
                                <ul class="dropdown-menu dropdown-menu-right" role="menu">
                                    <li>
                                    <a href="#" data-href="'.action([\App\Http\Controllers\SellController::class, 'show'], [$row->id]).'" class="btn-modal" data-container=".view_modal">
                                        <i class="fas fa-eye" aria-hidden="true"></i>'.__('messages.view').'
                                    </a>
                                    </li>';

                        if (auth()->user()->can('draft.update') || auth()->user()->can('quotation.update')) {
                            if ($row->is_direct_sale == 1) {
                                $html .= '<li>
                                            <a target="_blank" href="'.action([\App\Http\Controllers\SellController::class, 'edit'], [$row->id]).'">
                                                <i class="fas fa-edit"></i>'.__('messages.edit').'
                                            </a>
                                        </li>';
                            } else {
                                $html .= '<li>
                                            <a target="_blank" href="'.action([\App\Http\Controllers\SellPosController::class, 'edit'], [$row->id]).'">
                                                <i class="fas fa-edit"></i>'.__('messages.edit').'
                                            </a>
                                        </li>';
                            }
                        }

                        $html .= '<li>
                                    <a href="#" class="print-invoice" data-href="'.route('sell.printInvoice', [$row->id]).'"><i class="fas fa-print" aria-hidden="true"></i>'.__('messages.print').'</a>
                                </li>';

                        if (config('constants.enable_download_pdf')) {
                            $sub_status = $row->sub_status == 'proforma' ? 'proforma' : '';
                            $html .= '<li>
                                        <a href="'.route('quotation.downloadPdf', ['id' => $row->id, 'sub_status' => $sub_status]).'" target="_blank">
                                            <i class="fas fa-print" aria-hidden="true"></i>'.__('lang_v1.download_pdf').'
                                        </a>
                                    </li>';
                        }

                        if ((auth()->user()->can('sell.create') || auth()->user()->can('direct_sell.access')) && config('constants.enable_convert_draft_to_invoice')) {
                            $html .= '<li>
                                        <a href="'.action([\App\Http\Controllers\SellPosController::class, 'convertToInvoice'], [$row->id]).'" class="convert-draft"><i class="fas fa-sync-alt"></i>'.__('lang_v1.convert_to_invoice').'</a>
                                    </li>';
                        }

                        if ($row->sub_status != 'proforma') {
                            $html .= '<li>
                                        <a href="'.action([\App\Http\Controllers\SellPosController::class, 'convertToProforma'], [$row->id]).'" class="convert-to-proforma"><i class="fas fa-sync-alt"></i>'.__('lang_v1.convert_to_proforma').'</a>
                                    </li>';
                        }

                        if (auth()->user()->can('draft.delete') || auth()->user()->can('quotation.delete')) {
                            $html .= '<li>
                                <a href="'.action([\App\Http\Controllers\SellPosController::class, 'destroy'], [$row->id]).'" class="delete-sale"><i class="fas fa-trash"></i>'.__('messages.delete').'</a>
                                </li>';
                        }

                        if ($row->sub_status == 'quotation') {
                            $html .= '<li>
                                        <a href="'.action([\App\Http\Controllers\SellPosController::class, 'copyQuotation'],[$row->id]).'" 
                                        class="copy_quotation"><i class="fas fa-copy"></i>'.
                                        __("lang_v1.copy_quotation").'</a>
                                    </li>
                                    <li>
                                        <a href="#" data-href="'.action("\App\Http\Controllers\NotificationController@getTemplate", ["transaction_id" => $row->id,"template_for" => "new_quotation"]).'" class="btn-modal" data-container=".view_modal"><i class="fa fa-envelope" aria-hidden="true"></i>' . __("lang_v1.new_quotation_notification") . '
                                        </a>
                                    </li>';

                            $html .= '<li>
                                        <a href="'.action("\App\Http\Controllers\SellPosController@showInvoiceUrl", [$row->id]).'" class="view_invoice_url"><i class="fas fa-eye"></i>'.__("lang_v1.view_quote_url").'</a>
                                    </li>';
                        }

                        $html .= '</ul></div>';

                        return $html;
                    })
                ->removeColumn('id')
                ->editColumn('invoice_no', function ($row) {
                    $invoice_no = $row->invoice_no;
                    if (! empty($row->woocommerce_order_id)) {
                        $invoice_no .= ' <i class="fab fa-wordpress text-primary no-print" title="'.__('lang_v1.synced_from_woocommerce').'"></i>';
                    }

                    if ($row->sub_status == 'proforma') {
                        $invoice_no .= '<br><span class="label bg-gray">'.__('lang_v1.proforma_invoice').'</span>';
                    }

                    if (! empty($row->is_export)) {
                        $invoice_no .= '</br><small class="label label-default no-print" title="'.__('lang_v1.export').'">'.__('lang_v1.export').'</small>';
                    }

                    return $invoice_no;
                })
                ->editColumn('transaction_date', '{{@format_date($transaction_date)}}')
                ->editColumn('total_items', '{{@format_quantity($total_items)}}')
                ->editColumn('total_quantity', '{{@format_quantity($total_quantity)}}')
                ->addColumn('conatct_name', '@if(!empty($supplier_business_name)) {{$supplier_business_name}}, <br>@endif {{$name}}')
                ->filterColumn('conatct_name', function ($query, $keyword) {
                    $query->where(function ($q) use ($keyword) {
                        $q->where('contacts.name', 'like', "%{$keyword}%")
                        ->orWhere('contacts.supplier_business_name', 'like', "%{$keyword}%");
                    });
                })
                ->filterColumn('added_by', function ($query, $keyword) {
                    $query->whereRaw("CONCAT(COALESCE(u.surname, ''), ' ', COALESCE(u.first_name, ''), ' ', COALESCE(u.last_name, '')) like ?", ["%{$keyword}%"]);
                })
                ->setRowAttr([
                    'data-href' => function ($row) {
                        if (auth()->user()->can('sell.view')) {
                            return  action([\App\Http\Controllers\SellController::class, 'show'], [$row->id]);
                        } else {
                            return '';
                        }
                    }, ])
                ->rawColumns(['action', 'invoice_no', 'transaction_date', 'conatct_name'])
                ->make(true);
        }
    }

    /**
     * Creates copy of the requested sale.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function duplicateSell($id)
    {
        if (! auth()->user()->can('sell.create')) {
            abort(403, 'Unauthorized action.');
        }

        try {
            $business_id = request()->session()->get('user.business_id');
            $user_id = request()->session()->get('user.id');

            $transaction = Transaction::where('business_id', $business_id)
                            ->where('type', 'sell')
                            ->findorfail($id);
            $duplicate_transaction_data = [];
            foreach ($transaction->toArray() as $key => $value) {
                if (! in_array($key, ['id', 'created_at', 'updated_at'])) {
                    $duplicate_transaction_data[$key] = $value;
                }
            }
            $duplicate_transaction_data['status'] = 'draft';
            $duplicate_transaction_data['payment_status'] = null;
            $duplicate_transaction_data['transaction_date'] = \Carbon::now();
            $duplicate_transaction_data['created_by'] = $user_id;
            $duplicate_transaction_data['invoice_token'] = null;

            DB::beginTransaction();
            $duplicate_transaction_data['invoice_no'] = $this->transactionUtil->getInvoiceNumber($business_id, 'draft', $duplicate_transaction_data['location_id']);

            //Create duplicate transaction
            $duplicate_transaction = Transaction::create($duplicate_transaction_data);

            //Create duplicate transaction sell lines
            $duplicate_sell_lines_data = [];

            foreach ($transaction->sell_lines as $sell_line) {
                $new_sell_line = [];
                foreach ($sell_line->toArray() as $key => $value) {
                    if (! in_array($key, ['id', 'transaction_id', 'created_at', 'updated_at', 'lot_no_line_id'])) {
                        $new_sell_line[$key] = $value;
                    }
                }

                $duplicate_sell_lines_data[] = $new_sell_line;
            }

            $duplicate_transaction->sell_lines()->createMany($duplicate_sell_lines_data);

            DB::commit();

            $output = ['success' => 0,
                'msg' => trans('lang_v1.duplicate_sell_created_successfully'),
            ];
        } catch (\Exception $e) {
            DB::rollBack();
            \Log::emergency('File:'.$e->getFile().'Line:'.$e->getLine().'Message:'.$e->getMessage());

            $output = ['success' => 0,
                'msg' => trans('messages.something_went_wrong'),
            ];
        }

        if (! empty($duplicate_transaction)) {
            if ($duplicate_transaction->is_direct_sale == 1) {
                return redirect()->action([\App\Http\Controllers\SellController::class, 'edit'], [$duplicate_transaction->id])->with(['status', $output]);
            } else {
                return redirect()->action([\App\Http\Controllers\SellPosController::class, 'edit'], [$duplicate_transaction->id])->with(['status', $output]);
            }
        } else {
            abort(404, 'Not Found.');
        }
    }

    /**
     * Shows modal to edit shipping details.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function editShipping($id)
    {
        $is_admin = $this->businessUtil->is_admin(auth()->user());

        if (! $is_admin && ! auth()->user()->hasAnyPermission(['access_shipping', 'access_own_shipping', 'access_commission_agent_shipping'])) {
            abort(403, 'Unauthorized action.');
        }

        $business_id = request()->session()->get('user.business_id');

        $transaction = Transaction::where('business_id', $business_id)
                                ->with(['media', 'media.uploaded_by_user'])
                                ->findorfail($id);

        $users = User::forDropdown($business_id, false, false, false);

        $shipping_statuses = $this->transactionUtil->shipping_statuses();

        $activities = Activity::forSubject($transaction)
           ->with(['causer', 'subject'])
           ->where('activity_log.description', 'shipping_edited')
           ->latest()
           ->get();

        return view('sell.partials.edit_shipping')
               ->with(compact('transaction', 'shipping_statuses', 'activities', 'users'));
    }

    /**
     * Update shipping.
     *
     * @param  Request  $request, int  $id
     * @return \Illuminate\Http\Response
     */
    public function updateShipping(Request $request, $id)
    {
        $is_admin = $this->businessUtil->is_admin(auth()->user());

        if (! $is_admin && ! auth()->user()->hasAnyPermission(['access_shipping', 'access_own_shipping', 'access_commission_agent_shipping'])) {
            abort(403, 'Unauthorized action.');
        }

        try {
            $input = $request->only([
                'shipping_details', 'shipping_address',
                'shipping_status', 'delivered_to', 'delivery_person', 'shipping_custom_field_1', 'shipping_custom_field_2', 'shipping_custom_field_3', 'shipping_custom_field_4', 'shipping_custom_field_5',
            ]);


            $business_id = $request->session()->get('user.business_id');

            $transaction = Transaction::where('business_id', $business_id)
                                ->findOrFail($id);

            $transaction_before = $transaction->replicate();

            $transaction->update($input);

            $activity_property = ['update_note' => $request->input('shipping_note', '')];
            $this->transactionUtil->activityLog($transaction, 'shipping_edited', $transaction_before, $activity_property);

            $output = ['success' => 1,
                'msg' => trans('lang_v1.updated_success'),
            ];
        } catch (\Exception $e) {
            \Log::emergency('File:'.$e->getFile().'Line:'.$e->getLine().'Message:'.$e->getMessage());

            $output = ['success' => 0,
                'msg' => trans('messages.something_went_wrong'),
            ];
        }

        return $output;
    }

    /**
     * Display list of shipments.
     *
     * @return \Illuminate\Http\Response
     */
    public function shipments()
    {
        $is_admin = $this->businessUtil->is_admin(auth()->user());

        if (! $is_admin && ! auth()->user()->hasAnyPermission(['access_shipping', 'access_own_shipping', 'access_commission_agent_shipping'])) {
            abort(403, 'Unauthorized action.');
        }

        $shipping_statuses = $this->transactionUtil->shipping_statuses();

        $business_id = request()->session()->get('user.business_id');

        $business_locations = BusinessLocation::forDropdown($business_id, false);
        $customers = Contact::customersDropdown($business_id, false);

        $sales_representative = User::forDropdown($business_id, false, false, true);

        $is_service_staff_enabled = $this->transactionUtil->isModuleEnabled('service_staff');

        //Service staff filter
        $service_staffs = null;
        if ($this->productUtil->isModuleEnabled('service_staff')) {
            $service_staffs = $this->productUtil->serviceStaffDropdown($business_id);
        }

        $delevery_person = User::forDropdown($business_id, false, false, true);

        return view('sell.shipments')->with(compact('shipping_statuses'))
                ->with(compact('business_locations', 'customers', 'sales_representative', 'is_service_staff_enabled', 'service_staffs', 'delevery_person'));
    }

    public function viewMedia($model_id)
    {
        if (request()->ajax()) {
            $model_type = request()->input('model_type');
            $business_id = request()->session()->get('user.business_id');

            $query = Media::where('business_id', $business_id)
                        ->where('model_id', $model_id)
                        ->where('model_type', $model_type);

            $title = __('lang_v1.attachments');
            if (! empty(request()->input('model_media_type'))) {
                $query->where('model_media_type', request()->input('model_media_type'));
                $title = __('lang_v1.shipping_documents');
            }

            $medias = $query->get();

            return view('sell.view_media')->with(compact('medias', 'title'));
        }
    }

    public function resetMapping()
    {
        if (! auth()->user()->can('superadmin')) {
            abort(403, 'Unauthorized action.');
        }

        Artisan::call('pos:mapPurchaseSell');

        echo 'Mapping reset success';
        exit;
    }

    /**
     * Checks if invoice number exists
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function checkInvoiceNumber(Request $request)
    {
        $business_id = $request->session()->get('user.business_id');
        $invoice_no = $request->input('invoice_no');
        $transaction_id = $request->input('transaction_id');

        $query = Transaction::where('business_id', $business_id)
                        ->where('invoice_no', $invoice_no);
        
        if (!empty($transaction_id)) {
            $query->where('id', '!=', $transaction_id);
        }
        
        $count = $query->count();
        
        if ($count == 0) {
            echo 'true';
            exit;
        } else {
            echo 'false';
            exit;
        }
    }
}
