magento2-docker/app/code/Kai/Banner/Api/BannerRepository.php

<?php
namespace Kai\Banner\Api;

use Kai\Banner\Api\BannerRepositoryInterface;

/**
 * @api
 */
class BannerRepository implements BannerRepositoryInterface
{
    protected $kaiBannerModel;
    protected $kaiBannerResourceModel;
    protected $kaiBannerCollection;

    function __construct(
        \Kai\Banner\Model\KaiBanner $kaiBannerModel,
        \Kai\Banner\Model\KaiBannerResourceModel $kaiBannerResourceModel,
        \Kai\Banner\Model\KaiBannerCollection $kaiBannerCollection,
    )
    {
        $this->kaiBannerModel = $kaiBannerModel;
        $this->kaiBannerResourceModel = $kaiBannerResourceModel;
        $this->kaiBannerCollection = $kaiBannerCollection;
        $this->authorization();
    }

    private function authorization()
    {
        $headers = apache_request_headers();
        $apiKey = \Kai\Banner\Api\Helper::API_KEY;

        foreach ($headers as $key => $value) {
            $key = strtolower($key);
            if ('api_key' === $key && $value === $apiKey) {
                return true;
            }
        }

        header('HTTP/1.1 401 Unauthorized');
        header('Accept: application/json');
        header('Content-Type: application/json');
        die(
            json_encode(['message' => 'unauthorized'])
        );
    }

    private function responseOk(array $data)
    {
        header('HTTP/1.1 200 Ok');
        header('Accept: application/json');
        header('Content-Type: application/json');
        die(json_encode($data));
    }

    private function responseFail(array $data)
    {
        header('HTTP/1.1 400 Bad request');
        header('Accept: application/json');
        header('Content-Type: application/json');
        die(json_encode($data));
    }

    private function responseMethodFail()
    {
        header('HTTP/1.1 400 bad request');
        header('Accept: application/json');
        header('Content-Type: application/json');
        die(json_encode([
            'status' => false,
            'message' => 'Param ?method=... not exist!'
        ]));
    }

    public function getData()
    {
        $method = $_GET['method'] ?? null;

        if ($method === 'show') {
            $id = $_GET['id'] ?? 0;
            return $this->responseOk([
                'status' => true,
                'data' => $this
                    ->kaiBannerCollection
                    ->getItemById($id)
                    ->getData()
            ]);
        }

        if ($method === 'all') {
            return $this->responseOk([
                'status' => true,
                'data' => $this
                    ->kaiBannerCollection
                    ->getData()
            ]);
        }

        if ($method === 'delete') {
            $id = $_GET['id'] ?? 0;
            $model = $this->kaiBannerModel->setId($id);

            try {
                $this->kaiBannerResourceModel->delete($model);
                return $this->responseOk([
                    'status' => true,
                ]);
            } catch (\Exception $ex) {
                $this->kaiBannerResourceModel->rollBack();
                return $this->responseFail([
                    'status' => false,
                    'message' => $ex->getMessage()
                ]);
            }
        }

        return $this->responseMethodFail();
    }

    public function postData()
    {
        $method = $_GET['method'] ?? null;
        parse_str(
            string: file_get_contents('php://input'),
            result: $payload
        );

        if ($method === 'create') {
            $model = $this->kaiBannerModel;
            try {
                foreach ($payload as $key => $value) {
                    $model->setData($key, $value);
                }
                $this->kaiBannerResourceModel->save($model);

                return $this->responseOk([
                    'status' => true,
                    'data' => $this
                        ->kaiBannerCollection
                        ->getItemById($model->getId())
                        ->getData()
                ]);
            } catch (\Exception $ex) {
                return $this->responseFail([
                    'status' => false,
                    'message' => $ex->getMessage()
                ]);
            }
        }

        if ($method === 'update') {
            $id = $_GET['id'] ?? 0;
            $model = $this->kaiBannerModel->setId($id);

            try {
                foreach ($payload as $key => $value) {
                    $model->setData($key, $value);
                }
                $this->kaiBannerResourceModel->save($model);

                return $this->responseOk([
                    'status' => true,
                    'data' => $this
                    ->kaiBannerCollection
                    ->getItemById($model->getId())
                    ->getData()
                ]);
            } catch (\Exception $ex) {
                return $this->responseFail([
                    'status' => false,
                    'message' => $ex->getMessage()
                ]);
            }
        }

        return $this->responseMethodFail();
    }
}