magento2-docker/app/code/IpSupply/DataSheet/Block/Widget/DataSheetWidget.php

<?php

namespace IpSupply\DataSheet\Block\Widget;

use Magento\Framework\View\Element\Template;
use Magento\Widget\Block\BlockInterface;
use Magento\Framework\View\Element\Template\Context;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\UrlInterface;
use Magento\Framework\App\Request\Http;
use Magento\Framework\HTTP\Client\Curl;

class DataSheetWidget extends Template implements BlockInterface {
    protected $_objectManager;
	protected $_urlInterface;
	protected $_request;
	protected $_curl;
	protected $_apiURL;
	protected $_sheetPerPage;

	public function __construct(Http $request, UrlInterface $urlInterface, Curl $curl, Context $context, array $data = []) {
		$this->_objectManager = ObjectManager::getInstance();
		$this->_urlInterface = $urlInterface;
		$this->_request = $request;
		$this->_curl = $curl;
		$this->_apiURL = "https://disti.nswteam.net/api/getListDataSheet";
		$this->_sheetPerPage = 20;
		parent::__construct($context, $data);
	}

	function getDataSheet() {
		$response = array();

		// Get data sheet
		$pageNumber = $this->_request->getParam("page") ? $this->_request->getParam("page") : 1;
		$searchKey = $this->_request->getParam("search") ? $this->_request->getParam("search") : "";
		$pageURL = $pageNumber - 1;
        $source= empty($this->getData('source')) ? "" : urlencode($this->getData('source'));
		$url = $this->_apiURL."?limit=".$this->_sheetPerPage."&page=".$pageURL."&search=".urlencode($searchKey)."&source=".$source;
		$this->_curl->get($url);
		$dataSheet = json_decode($this->_curl->getBody());
		$response["data"] = $dataSheet->data;

		// return active page
		$response["activePage"] = $pageNumber;
		// return search key
		$response["searchKey"] = $searchKey;

		// Total pagination
		$currentURL = $this->_urlInterface->getCurrentUrl();
		$haveLeft = FALSE;
		$haveRight = FALSE;
		$pagination = array();
		$totalPagination = ceil($dataSheet->totalProduct/$this->_sheetPerPage);
		if($totalPagination > 5) {
			if($pageNumber - 2 > 1 && $totalPagination - $pageNumber > 2){
				$index = $pageNumber - 2;
				for($i = 1; $i <= 5; $i++) {
					$item = $this->_request->getParam("page")
								? str_replace("page=".$pageNumber, "page=".$index, $currentURL)
								: $currentURL."?page=".$index;
					array_push($pagination, array(
						"index" => $index,
						"url" => $item,
					));
					$index++;
				}
				$haveLeft = TRUE;
				$haveRight = TRUE;
			}
			else if($pageNumber - 2 <= 1 && $totalPagination - $pageNumber > 2) {
				$index = 1;
				for($i = 1; $i <= 5; $i++) {
					$item = $this->_request->getParam("page")
								? str_replace("page=".$pageNumber, "page=".$index, $currentURL)
								: $currentURL."?page=".$index;
					array_push($pagination, array(
						"index" => $index,
						"url" => $item,
					));
					$index++;
				}
				$haveRight = TRUE;
			}
			else if($pageNumber - 2 > 1 && $totalPagination - $pageNumber <= 2) {
				$index = $pageNumber - 2 - (2 - ($totalPagination - $pageNumber));
				for($i = 1; $i <= 5; $i++) {
					$item = $this->_request->getParam("page")
								? str_replace("page=".$pageNumber, "page=".$index, $currentURL)
								: $currentURL."?page=".$index;
					array_push($pagination, array(
						"index" => $index,
						"url" => $item,
					));
					$index++;
				}
				$haveLeft = TRUE;
			}
		}
		else {
			for($i = 1; $i <= $totalPagination; $i++) {
				$item = $this->_request->getParam("page")
								? str_replace("page=".$pageNumber, "page=".$i, $currentURL)
								: $currentURL."?page=".$i;
				array_push($pagination, array(
					"index" => $i,
					"url" => $item,
				));
			}
		}
		$response["pagination"] = $pagination;
		$response["haveLeft"] = $haveLeft;
		$response["haveRight"] = $haveRight;
		$response["previousPage"] = $this->_request->getParam("page")
										? $pageNumber > 1
											? str_replace("page=".$pageNumber, "page=".$pageNumber - 1, $currentURL)
											: str_replace("page=".$pageNumber, "page=".$totalPagination, $currentURL)
										: $currentURL."?page=".$index;

		$response["nextPage"] = $this->_request->getParam("page")
									? $pageNumber < $totalPagination
										? str_replace("page=".$pageNumber, "page=".$pageNumber + 1, $currentURL)
										: str_replace("page=".$pageNumber, "page=1", $currentURL)
									: $currentURL."?page=".$i;


		return $response;
	}

    function getAssetUrl($asset) {
	    $assetRepository = $this->_objectManager->get('Magento\Framework\View\Asset\Repository');
	    return $assetRepository->createAsset($asset)->getUrl();
	}
}