Implement currency routes.

app/Api/V1/Controllers/Models/TransactionCurrency/ShowController.php

@@ -0,0 +1,125 @@
+<?php
+
+
+namespace FireflyIII\Api\V1\Controllers\Models\TransactionCurrency;
+
+
+use FireflyIII\Api\V1\Controllers\Controller;
+use FireflyIII\Models\TransactionCurrency;
+use FireflyIII\Repositories\Currency\CurrencyRepositoryInterface;
+use FireflyIII\Support\Http\Api\AccountFilter;
+use FireflyIII\Support\Http\Api\TransactionFilter;
+use FireflyIII\Transformers\CurrencyTransformer;
+use FireflyIII\User;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Pagination\LengthAwarePaginator;
+use League\Fractal\Pagination\IlluminatePaginatorAdapter;
+use League\Fractal\Resource\Collection as FractalCollection;
+use League\Fractal\Resource\Item;
+
+/**
+ * Class ShowController
+ */
+class ShowController extends Controller
+{
+    use AccountFilter, TransactionFilter;
+
+    private CurrencyRepositoryInterface $repository;
+
+    /**
+     * CurrencyRepository constructor.
+     *
+     * @codeCoverageIgnore
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        $this->middleware(
+            function ($request, $next) {
+                /** @var User $admin */
+                $admin = auth()->user();
+
+                /** @var CurrencyRepositoryInterface repository */
+                $this->repository = app(CurrencyRepositoryInterface::class);
+                $this->repository->setUser($admin);
+
+                return $next($request);
+            }
+        );
+    }
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return JsonResponse
+     * @codeCoverageIgnore
+     */
+    public function index(): JsonResponse
+    {
+        $pageSize   = (int)app('preferences')->getForUser(auth()->user(), 'listPageSize', 50)->data;
+        $collection = $this->repository->getAll();
+        $count      = $collection->count();
+        // slice them:
+        $currencies = $collection->slice(($this->parameters->get('page') - 1) * $pageSize, $pageSize);
+        $paginator  = new LengthAwarePaginator($currencies, $count, $pageSize, $this->parameters->get('page'));
+        $paginator->setPath(route('api.v1.currencies.index') . $this->buildParams());
+
+
+        $manager         = $this->getManager();
+        $defaultCurrency = app('amount')->getDefaultCurrencyByUser(auth()->user());
+        $this->parameters->set('defaultCurrency', $defaultCurrency);
+
+        /** @var CurrencyTransformer $transformer */
+        $transformer = app(CurrencyTransformer::class);
+        $transformer->setParameters($this->parameters);
+
+        $resource = new FractalCollection($currencies, $transformer, 'currencies');
+        $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
+
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
+    }
+
+    /**
+     * Show a currency.
+     *
+     * @param TransactionCurrency $currency
+     *
+     * @return JsonResponse
+     * @codeCoverageIgnore
+     */
+    public function show(TransactionCurrency $currency): JsonResponse
+    {
+        $manager         = $this->getManager();
+        $defaultCurrency = app('amount')->getDefaultCurrencyByUser(auth()->user());
+        $this->parameters->set('defaultCurrency', $defaultCurrency);
+
+        /** @var CurrencyTransformer $transformer */
+        $transformer = app(CurrencyTransformer::class);
+        $transformer->setParameters($this->parameters);
+
+        $resource = new Item($currency, $transformer, 'currencies');
+
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
+    }
+
+    /**
+     * Show a currency.
+     *
+     * @return JsonResponse
+     * @codeCoverageIgnore
+     */
+    public function showDefault(): JsonResponse
+    {
+        $manager  = $this->getManager();
+        $currency = app('amount')->getDefaultCurrencyByUser(auth()->user());
+        $this->parameters->set('defaultCurrency', $currency);
+
+        /** @var CurrencyTransformer $transformer */
+        $transformer = app(CurrencyTransformer::class);
+        $transformer->setParameters($this->parameters);
+
+        $resource = new Item($currency, $transformer, 'currencies');
+
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
+    }
+}