snipe-it/app/Http/Controllers/Account/AcceptanceController.php

<?php

namespace App\Http\Controllers\Account;

use App\Events\CheckoutAccepted;
use App\Events\CheckoutDeclined;
use App\Events\ItemAccepted;
use App\Events\ItemDeclined;
use App\Http\Controllers\Controller;
use App\Models\CheckoutAcceptance;
use App\Models\Company;
use App\Models\Contracts\Acceptable;
use Barryvdh\DomPDF\PDF;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

class AcceptanceController extends Controller
{
    /**
     * Show a listing of pending checkout acceptances for the current user
     *
     * @return View
     */
    public function index()
    {
        $acceptances = CheckoutAcceptance::forUser(Auth::user())->pending()->get();

        return view('account/accept.index', compact('acceptances'));
    }

    /**
     * Shows a form to either accept or decline the checkout acceptance
     *
     * @param  int  $id
     * @return mixed
     */
    public function create($id)
    {
        $acceptance = CheckoutAcceptance::find($id);

        if (is_null($acceptance)) {
            return redirect()->route('account.accept')->with('error', trans('admin/hardware/message.does_not_exist'));
        }

        if (! $acceptance->isPending()) {
            return redirect()->route('account.accept')->with('error', trans('admin/users/message.error.asset_already_accepted'));
        }

        if (! $acceptance->isCheckedOutTo(Auth::user())) {
            return redirect()->route('account.accept')->with('error', trans('admin/users/message.error.incorrect_user_accepted'));
        }

        if (! Company::isCurrentUserHasAccess($acceptance->checkoutable)) {
            return redirect()->route('account.accept')->with('error', trans('general.insufficient_permissions'));
        }

        return view('account/accept.create', compact('acceptance'));
    }

    /**
     * Stores the accept/decline of the checkout acceptance
     *
     * @param  Request $request
     * @param  int  $id
     * @return Redirect
     */
    public function store(Request $request, $id)
    {
        $acceptance = CheckoutAcceptance::find($id);

        if (is_null($acceptance)) {
            return redirect()->route('account.accept')->with('error', trans('admin/hardware/message.does_not_exist'));
        }

        if (! $acceptance->isPending()) {
            return redirect()->route('account.accept')->with('error', trans('admin/users/message.error.asset_already_accepted'));
        }

        if (! $acceptance->isCheckedOutTo(Auth::user())) {
            return redirect()->route('account.accept')->with('error', trans('admin/users/message.error.incorrect_user_accepted'));
        }

        if (! Company::isCurrentUserHasAccess($acceptance->checkoutable)) {
            return redirect()->route('account.accept')->with('error', trans('general.insufficient_permissions'));
        }

        if (! $request->filled('asset_acceptance')) {
            return redirect()->back()->with('error', trans('admin/users/message.error.accept_or_decline'));
        }

        /**
         * Get the signature and save it
         */
        if (! Storage::exists('private_uploads/signatures')) {
            Storage::makeDirectory('private_uploads/signatures', 775);
        }
        $sig_filename = '';
        if ($request->filled('signature_output')) {
            $sig_filename = 'siglog-'.Str::uuid().'-'.date('Y-m-d-his').'.png';
            $data_uri = e($request->input('signature_output'));
            $encoded_image = explode(',', $data_uri);
            $decoded_image = base64_decode($encoded_image[1]);
            Storage::put('private_uploads/signatures/'.$sig_filename, (string) $decoded_image);
        }

        if ($request->input('asset_acceptance') == 'accepted') {
            $acceptance->accept($sig_filename);
            event(new CheckoutAccepted($acceptance));

            $return_msg = trans('admin/users/message.accepted');
        } else {
            $acceptance->decline($sig_filename);

            event(new CheckoutDeclined($acceptance));

            $return_msg = trans('admin/users/message.declined');
        }
        $sig_image=Storage::get('private_uploads/signatures/'.$sig_filename);
        $this->SignatureEulaPDF($acceptance, $sig_image );

        return redirect()->to('account/accept')->with('success', $return_msg);
    }

    public function SignatureEulaPDF($acceptance, $sig_image)
    {
//        When I compact the $data I at least get back an ipsum string in the error message that is recognized as an
//        "unknown variable". 2nd param in load view should be the array of things you wanted rendered in the pdf.
        $data = [
        'eula'=> $acceptance->checkoutable->getEula(),
        'signature' => $sig_image,
        ];
        $pdf = PDF::loadView('account.accept.create', compact($data));
        return $pdf->download('test.pdf');
    }
}