invoiceninja/app/Http/Controllers/TemplateController.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Http\Controllers;

use App\Utils\TemplateEngine;
use App\Utils\Traits\MakesHash;
use App\Utils\Traits\MakesInvoiceHtml;
use App\Utils\Traits\MakesTemplateData;
use Illuminate\Http\Response;

class TemplateController extends BaseController
{
    use MakesHash;
    use MakesTemplateData;
    use MakesInvoiceHtml;

    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Returns a template filled with entity variables.
     *
     * @return Response
     *
     * @OA\Post(
     *      path="/api/v1/templates",
     *      operationId="getShowTemplate",
     *      tags={"templates"},
     *      summary="Returns a entity template with the template variables replaced with the Entities",
     *      description="Returns a entity template with the template variables replaced with the Entities",
     *      @OA\Parameter(ref="#/components/parameters/X-Requested-With"),
     *      @OA\RequestBody(
     *         description="The template subject and body",
     *         required=true,
     *         @OA\MediaType(
     *             mediaType="application/json",
     *             @OA\Schema(
     *                 type="object",
     *                 @OA\Property(
     *                     property="subject",
     *                     description="The email template subject",
     *                     type="string",
     *                 ),
     *                 @OA\Property(
     *                     property="body",
     *                     description="The email template body",
     *                     type="string",
     *                 ),
     *             )
     *         )
     *      ),
     *      @OA\Response(
     *          response=200,
     *          description="The template response",
     *          @OA\Header(header="X-MINIMUM-CLIENT-VERSION", ref="#/components/headers/X-MINIMUM-CLIENT-VERSION"),
     *          @OA\Header(header="X-RateLimit-Remaining", ref="#/components/headers/X-RateLimit-Remaining"),
     *          @OA\Header(header="X-RateLimit-Limit", ref="#/components/headers/X-RateLimit-Limit"),
     *          @OA\JsonContent(ref="#/components/schemas/Template"),
     *       ),
     *       @OA\Response(
     *          response=422,
     *          description="Validation error",
     *          @OA\JsonContent(ref="#/components/schemas/ValidationError"),

     *       ),
     *       @OA\Response(
     *           response="default",
     *           description="Unexpected Error",
     *           @OA\JsonContent(ref="#/components/schemas/Error"),
     *       ),
     *     )
     */
    public function show()
    {
        $entity = request()->has('entity') ? request()->input('entity') : '';
        $entity_id = request()->has('entity_id') ? request()->input('entity_id') : '';
        $subject = request()->has('subject') ? request()->input('subject') : '';
        $body = request()->has('body') ? request()->input('body') : '';
        $template = request()->has('template') ? request()->input('template') : '';

        $data = (new TemplateEngine($body, $subject, $entity, $entity_id, $template))->build();

        return response()->json($data, 200);
    }
}