Massive rewrite for import routine, part 1.

app/Http/Controllers/Import/ConfigurationController.php

@@ -0,0 +1,87 @@
+<?php
+declare(strict_types=1);
+
+namespace FireflyIII\Http\Controllers\Import;
+
+
+use FireflyIII\Exceptions\FireflyException;
+use FireflyIII\Http\Controllers\Controller;
+use FireflyIII\Import\Configuration\ConfiguratorInterface;
+use FireflyIII\Models\ImportJob;
+use FireflyIII\Repositories\ImportJob\ImportJobRepositoryInterface;
+
+/**
+ * Class ConfigurationController
+ */
+class ConfigurationController extends Controller
+{
+    /** @var ImportJobRepositoryInterface */
+    public $repository;
+
+    /**
+     *
+     */
+    public function __construct()
+    {
+        parent::__construct();
+
+        $this->middleware(
+            function ($request, $next) {
+                app('view')->share('mainTitleIcon', 'fa-archive');
+                app('view')->share('title', trans('firefly.import_index_title'));
+                $this->repository = app(ImportJobRepositoryInterface::class);
+
+                return $next($request);
+            }
+        );
+    }
+
+    /**
+     * Configure the job. This method is returned to until job is deemed "configured".
+     *
+     * @param ImportJob $job
+     *
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector|\Illuminate\View\View
+     * @throws FireflyException
+     */
+    public function index(ImportJob $job)
+    {
+        // create configuration class:
+        $configurator = $this->makeConfigurator($job);
+
+        // is the job already configured?
+        if ($configurator->isJobConfigured()) {
+            $this->repository->updateStatus($job, 'configured');
+
+            return redirect(route('import.file.status', [$job->key]));
+        }
+        $view         = $configurator->getNextView();
+        $data         = $configurator->getNextData();
+        $subTitle     = trans('firefly.import_config_bread_crumb');
+        $subTitleIcon = 'fa-wrench';
+
+        return view($view, compact('data', 'job', 'subTitle', 'subTitleIcon'));
+    }
+
+    /**
+     * @param ImportJob $job
+     *
+     * @return ConfiguratorInterface
+     *
+     * @throws FireflyException
+     */
+    private function makeConfigurator(ImportJob $job): ConfiguratorInterface
+    {
+        $type      = $job->file_type;
+        $key       = sprintf('import.configuration.%s', $type);
+        $className = config($key);
+        if (null === $className || !class_exists($className)) {
+            throw new FireflyException(sprintf('Cannot find configurator class for job of type "%s".',$type)); // @codeCoverageIgnore
+        }
+        /** @var ConfiguratorInterface $configurator */
+        $configurator = app($className);
+        $configurator->setJob($job);
+
+        return $configurator;
+    }
+}