roi-theme/wp-content/plugins/calculatg/calculatg.php

<?php
/**
 * Plugin Name: CalculaTG
 * Description: A plugin to show calculator to calculate concreto
 * Author: Suresh N, Tamilselvi V
 * Author URI: https://www.deshtech.co.in/
 * Version: 1.0.1
 */

define('CALCULATG_TEXT_DOMAIN', 'calculatg');
define('CALCULATG_VERSION', '1.0.1');
define('CALCULATG_PLUGIN_DIR', dirname(__FILE__) );


require_once CALCULATG_PLUGIN_DIR . '/lib/PhpSpreadsheet-master/vendor/autoload.php';

use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;

class CalculaTG {

	public function __construct() {

		add_shortcode('calculatg', [ $this, 'shortcode_handler' ]);

		add_action('admin_menu', [ $this, 'admin_menu' ]);

		add_action( 'wp_ajax_calculatg_export_excel', [ $this, 'export_excel' ] );
		add_action( 'wp_ajax_nopriv_calculatg_export_excel', [ $this, 'export_excel' ] );

	}

	public function admin_menu() {
		add_options_page(
			__('CalculaTG', CALCULATG_TEXT_DOMAIN),
			__('CalculaTG', CALCULATG_TEXT_DOMAIN),
			'manage_options',
			'calculatg-settings',
			[ $this, 'calculatg_settings' ]
		);
	}

	public function calculatg_settings() {

		if ( isset($_POST['calculatg_settings']) ) {
			update_option('calculatg_settings', $_POST['calculatg_settings']);
		}

		$calculatg_settings = get_option('calculatg_settings', array());

?>
		<style type="text/css">
		label { display: inline-block; min-width: 250px; }
		.row { margin-bottom: 20px; }
		</style>

		<div class="wrap">
			<h2>CalculaTG Settings</h2>
			<p>&nbsp;</p>

			<form action="" method="post">
				<div class="row">
					<label>Excel Export - Allowed Roles</label>
					<select name="calculatg_settings[excel_export_allowed_roles][]" multiple size="4">
					<?php
						$editable_roles = array_reverse( get_editable_roles() );

						foreach ( $editable_roles as $role => $details ) {
							$name = translate_user_role( $details['name'] );
							// Preselect specified role.
							if ( in_array($role, $calculatg_settings['excel_export_allowed_roles']) ) {
								echo "\n\t<option selected='selected' value='" . esc_attr( $role ) . "'>$name</option>";
							} else {
								echo "\n\t<option value='" . esc_attr( $role ) . "'>$name</option>";
							}
						}
					?>
					</select>
				</div>

				<div class="row">
					<label>Restricted user - Redirect URL</label>
					<input type="text" name="calculatg_settings[restricted_user_redirect_url]" value="<?php echo isset($calculatg_settings['restricted_user_redirect_url']) ? $calculatg_settings['restricted_user_redirect_url'] : ''; ?>" class="regular-text ltr">
				</div>

				<p>&nbsp;</p>
				<?php submit_button(); ?>
			</form>
		</div>
<?php
	}

	public function export_excel() {

		$wp_current_user = wp_get_current_user();
		$calculatg_settings = get_option('calculatg_settings', array());

		if( empty($wp_current_user) || empty($wp_current_user->roles) || count ( array_intersect( $calculatg_settings['excel_export_allowed_roles'], $wp_current_user->roles ) ) === 0 ) {

			wp_send_json(
				array(
					'redirect' => true,
					'redirect_url' => $calculatg_settings['restricted_user_redirect_url']
				)
			);
		}

		if ( isset($_POST['check']) ) {
			wp_send_json(
				array(
					'redirect' => false,
					'redirect_url' => ''
				)
			);
		}

		$type = sanitize_text_field( $_POST['type'] );

		switch($type) {
			case '1':
				$spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load( CALCULATG_PLUGIN_DIR . '/files/F1.xlsx' );
				$sheet = $spreadsheet->getActiveSheet();

				$post_data = array_map('sanitize_text_field', $_POST);
				$post_data = array_map('stripslashes', $post_data);

				$sheet->setCellValue('B8', $post_data['application_str']);
				$sheet->setCellValue('B10', $post_data['resistance_str']);
				$sheet->setCellValue('B12', $post_data['aggregate_origin_str']);
				$sheet->setCellValue('B14', $post_data['gravel_size_str']);
				$sheet->setCellValue('E14', $post_data['sand_moisture_str']);
				$sheet->setCellValue('B16', $post_data['volume_liters_str']);

				$sheet->setCellValue('E20', $post_data['tab_str']);

				if ( $post_data['active_tab'] == '0' ) {

					$sheet->setCellValue('E16', $post_data['tab1_number_of_stirrers']);
					$sheet->setCellValue('B20', $post_data['tab1_approximate_volume']);
					$sheet->setCellValue('B22', $post_data['tab1_agua']);
					$sheet->setCellValue('E22', $post_data['tab1_agua_botes']);
					$sheet->setCellValue('B24', $post_data['tab1_cemento']);
					$sheet->setCellValue('E24', $post_data['tab1_cemento_sacos']);
					$sheet->setCellValue('B26', $post_data['tab1_arena']);
					$sheet->setCellValue('E26', $post_data['tab1_arena_botes']);
					$sheet->setCellValue('B28', $post_data['tab1_grava']);
					$sheet->setCellValue('E28', $post_data['tab1_grava_botes']);

					$sheet->setCellValue('F22', 'litros');
					$sheet->setCellValue('F24', 'litros');
					$sheet->setCellValue('F26', 'litros');
					$sheet->setCellValue('F28', 'litros');

				}
				else if ( $post_data['active_tab'] == '1' ) {

					$sheet->setCellValue('B20', $post_data['tab2_manufacturer_volume']);
					$sheet->setCellValue('B22', $post_data['tab2_agua']);
					$sheet->setCellValue('E22', $post_data['tab2_agua_botes']);
					$sheet->setCellValue('B24', $post_data['tab2_cemento']);
					$sheet->setCellValue('E24', $post_data['tab2_cemento_sacos']);
					$sheet->setCellValue('B26', $post_data['tab2_arena']);
					$sheet->setCellValue('E26', $post_data['tab2_arena_botes']);
					$sheet->setCellValue('B28', $post_data['tab2_grava']);
					$sheet->setCellValue('E28', $post_data['tab2_grava_botes']);

				}
				else if ( $post_data['active_tab'] == '2' ) {

					$sheet->setCellValue('B20', $post_data['tab3_approximate_volume']);
					$sheet->setCellValue('B22', $post_data['tab3_agua']);
					$sheet->setCellValue('E22', $post_data['tab3_agua_botes']);
					$sheet->setCellValue('B24', $post_data['tab3_cemento']);
					$sheet->setCellValue('E24', $post_data['tab3_cemento_sacos']);
					$sheet->setCellValue('B26', $post_data['tab3_arena']);
					$sheet->setCellValue('E26', $post_data['tab3_arena_botes']);
					$sheet->setCellValue('B28', $post_data['tab3_grava']);
					$sheet->setCellValue('E28', $post_data['tab3_grava_botes']);

				}
				else if ( $post_data['active_tab'] == '3' ) {

					$sheet->setCellValue('B20', $post_data['tab4_manufacturer_volume']);
					$sheet->setCellValue('B22', $post_data['tab4_agua_botes']);
					$sheet->setCellValue('E22', $post_data['tab3_agua_botes_2']);
					$sheet->setCellValue('B24', $post_data['tab4_cemento_sacos']);
					$sheet->setCellValue('E24', $post_data['tab4_cemento_sacos_2']);
					$sheet->setCellValue('B26', $post_data['tab4_arena_botes']);
					$sheet->setCellValue('E26', $post_data['tab4_arena_botes_2']);
					$sheet->setCellValue('B28', $post_data['tab4_grava_botes']);
					$sheet->setCellValue('E28', $post_data['tab4_grava_botes_2']);

				}

				$writer = new Xlsx($spreadsheet);
				header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
				header('Content-Disposition: attachment; filename="Dosification Concreto.xlsx"');
				$writer->save("php://output");

				//$writer->save(CALCULATG_PLUGIN_DIR . '/temp/Dosification Concreto.xlsx');

				break;
		}

		exit;
	}

	public function shortcode_handler( $atts = array() ) {
		$atts = shortcode_atts( array(
			'type' => '1',
		), $atts, CALCULATG_TEXT_DOMAIN );

		extract( $atts );

		wp_enqueue_style('calculatg-css', plugin_dir_url(__FILE__) . '/css/calculatg.css', '', CALCULATG_VERSION);
		wp_enqueue_style('jquery-ui-tabs', '//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css', '', CALCULATG_VERSION);

		wp_enqueue_script("jquery-ui-tabs");

		$calculatg_settings = get_option('calculatg_settings', array());

		$html = '<div class="calculatg-wrap">';

		ob_start();

		switch( $type ) {
			case '1':
			default:
				wp_enqueue_script('calculatg-js', plugin_dir_url(__FILE__) . '/js/dosification-concreto.js', ['jquery'], CALCULATG_VERSION, true);
				wp_localize_script( 'calculatg-js', 'calculatg_obj',
					array(
						'ajaxurl' => admin_url( 'admin-ajax.php' )
					)
				);
				include_once 'files/dosification-concreto.html';
				break;
		}

		$html .= ob_get_clean();

		$html .= '</div>';

		return $html;
	}

}

$calculatg = new CalculaTG;