firefly-iii/app/Http/Controllers/TransactionCurrency/DeleteController.php

<?php

declare(strict_types=1);

namespace FireflyIII\Http\Controllers\TransactionCurrency;

use FireflyIII\Http\Controllers\Controller;
use FireflyIII\Models\TransactionCurrency;
use FireflyIII\Repositories\Currency\CurrencyRepositoryInterface;
use FireflyIII\Repositories\User\UserRepositoryInterface;
use FireflyIII\User;
use Illuminate\Contracts\View\Factory;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Routing\Redirector;
use Illuminate\Support\Facades\Log;
use Illuminate\View\View;

/**
 * Class DeleteController
 */
class DeleteController extends Controller
{
    protected CurrencyRepositoryInterface $repository;
    protected UserRepositoryInterface     $userRepository;

    /**
     * CurrencyController constructor.
     *

     */
    public function __construct()
    {
        parent::__construct();

        $this->middleware(
            function ($request, $next) {
                app('view')->share('title', (string)trans('firefly.currencies'));
                app('view')->share('mainTitleIcon', 'fa-usd');
                $this->repository     = app(CurrencyRepositoryInterface::class);
                $this->userRepository = app(UserRepositoryInterface::class);

                return $next($request);
            }
        );
    }



    /**
     * Deletes a currency.
     *
     * @param Request             $request
     * @param TransactionCurrency $currency
     *
     * @return Factory|RedirectResponse|Redirector|View
     */
    public function delete(Request $request, TransactionCurrency $currency)
    {
        /** @var User $user */
        $user = auth()->user();
        if (!$this->userRepository->hasRole($user, 'owner')) {
            $request->session()->flash('error', (string)trans('firefly.ask_site_owner', ['owner' => e(config('firefly.site_owner'))]));
            Log::channel('audit')->info(sprintf('Tried to visit page to delete currency %s but is not site owner.', $currency->code));

            return redirect(route('currencies.index'));
        }

        if ($this->repository->currencyInUse($currency)) {
            $location = $this->repository->currencyInUseAt($currency);
            $message  = (string)trans(sprintf('firefly.cannot_disable_currency_%s', $location), ['name' => e($currency->name)]);
            $request->session()->flash('error', $message);
            Log::channel('audit')->info(sprintf('Tried to visit page to delete currency %s but currency is in use.', $currency->code));

            return redirect(route('currencies.index'));
        }

        // put previous url in session
        $this->rememberPreviousUrl('currencies.delete.url');
        $subTitle = (string)trans('form.delete_currency', ['name' => $currency->name]);
        Log::channel('audit')->info(sprintf('Visit page to delete currency %s.', $currency->code));

        return view('currencies.delete', compact('currency', 'subTitle'));
    }

    /**
     * Destroys a currency.
     *
     * @param Request             $request
     * @param TransactionCurrency $currency
     *
     * @return RedirectResponse|Redirector
     */
    public function destroy(Request $request, TransactionCurrency $currency)
    {
        /** @var User $user */
        $user = auth()->user();
        if (!$this->userRepository->hasRole($user, 'owner')) {
            $request->session()->flash('error', (string)trans('firefly.ask_site_owner', ['owner' => e(config('firefly.site_owner'))]));
            Log::channel('audit')->info(sprintf('Tried to delete currency %s but is not site owner.', $currency->code));

            return redirect(route('currencies.index'));
        }

        if ($this->repository->currencyInUse($currency)) {
            $request->session()->flash('error', (string)trans('firefly.cannot_delete_currency', ['name' => e($currency->name)]));
            Log::channel('audit')->info(sprintf('Tried to delete currency %s but is in use.', $currency->code));

            return redirect(route('currencies.index'));
        }

        if ($this->repository->isFallbackCurrency($currency)) {
            $request->session()->flash('error', (string)trans('firefly.cannot_delete_fallback_currency', ['name' => e($currency->name)]));
            Log::channel('audit')->info(sprintf('Tried to delete currency %s but is FALLBACK.', $currency->code));

            return redirect(route('currencies.index'));
        }

        Log::channel('audit')->info(sprintf('Deleted currency %s.', $currency->code));
        $this->repository->destroy($currency);

        $request->session()->flash('success', (string)trans('firefly.deleted_currency', ['name' => $currency->name]));

        return redirect($this->getPreviousUrl('currencies.delete.url'));
    }

}