<?php

namespace App\Http\Controllers\Admin\Templates;

use App\Cms\Repositories\Templates\Template as TemplateRepository;
use App\Http\Controllers\Admin\Controller;
use App\Http\Requests\CopyTemplateRequest;
use App\Models\Templates\Template;

class CopyTemplate extends Controller
{
    /**
     * Method for copying given template.
     * This method is supposed to be called by POST method.
     *
     * @param CopyTemplateRequest $request
     *
     * @return \Illuminate\Http\JsonResponse|\Illuminate\Http\RedirectResponse
     */
    public function createCopy(CopyTemplateRequest $request)
    {
        // get variables from request
        $newName = preg_replace('/[^a-z0-9_]/i', '', $request->newName);
        $oldTemplateId = $request->templateId;

        // get template path
        $template = Template::findOrFail($oldTemplateId);

        $namespace = null;
        if (strpos($template->template_name, '::')) {
            list($namespace) = explode('::', $template->template_name);
            $namespace .= '::';
        }

        $repository = app(TemplateRepository::class);
        $repository->setModel($template);

        // get template absolute paths
        $realTemplatePath = $repository->getPathToTemplate();
        $customTemplatePath = $repository->getPathToTemplate(TemplateRepository::CUSTOM_EDIT_DIRECTORY);
        $path = dirname($customTemplatePath);

        // create file copy
        $data = file_get_contents($realTemplatePath);

        if (!is_dir($path)) {
            mkdir($path, 0777, true);
        }

        $written = file_put_contents($path . DIRECTORY_SEPARATOR . $newName . TemplateRepository::TEMPLATE_SUFFIX, $data);
        // were data written?
        if ($written === false) {
            return $this->copyFailed($request, $template);
        }

        // insert record into database (**custom paths are not crawled)
        $newTemplate = Template::create([
                                            'template_name' => $namespace . $newName,
                                            'name'          => $newName,
                                            'path'          => $template->path,
                                            'module_id'     => $template->module_id,
                                            'description'   => $template->description,
                                            'editable'      => 1
                                        ]);

        // inform user about successfull copying
        return $this->copySuccessfull($request, $newTemplate);
    }

    /**
     * Handle failed template copying
     *
     * @param CopyTemplateRequest $request
     * @param Template            $template
     *
     * @return \Illuminate\Http\JsonResponse|\Illuminate\Http\RedirectResponse
     */
    private function copyFailed(CopyTemplateRequest $request, Template $template)
    {
        $message = trans('admin/templates.copyFailed', ['name' => $template->name]);

        if ($request->ajax()) {
            return response()->json([
                                        'status'      => 'fail',
                                        'redirectUrl' => route('templates.overview', ['path' => $template->path]),
                                        'message'     => $message
                                    ]);
        } else {
            return redirect()
                ->route('templates.overview', ['path' => $template->path])
                ->with('error', $message);
        }
    }

    /**
     * Handle (redirect/send response) successfully copied template
     *
     * @param CopyTemplateRequest $request
     * @param Template            $newTemplate
     *
     * @return \Illuminate\Http\JsonResponse|\Illuminate\Http\RedirectResponse
     */
    private function copySuccessfull(CopyTemplateRequest $request, Template $newTemplate)
    {
        if ($request->ajax()) {
            return response()->json([
                                        'status'      => 'success',
                                        'redirectUrl' => route('templates.overview', ['path' => $newTemplate->path]),
                                        'message'     => trans('admin/templates.copySuccessfull', ['name' => $newTemplate->name])
                                    ]);
        } else {
            return redirect()
                ->route(route('templates.overview', ['path' => $newTemplate->path]))
                ->with('success', trans('admin/templates.copySuccessfull', ['name' => $newTemplate->name]));
        }
    }
}