<?php

su_add_shortcode(
	array(
		'id' => 'qrcode',
		'callback' => 'su_shortcode_qrcode',
		'image' => su_get_plugin_url() . 'admin/images/shortcodes/qrcode.svg',
		'name' => __('QR code', 'shortcodes-ultimate'),
		'type' => 'single',
		'group' => 'content',
		'atts' => array(
			'data' => array(
				'default' => '',
				'name' => __('Data', 'shortcodes-ultimate'),
				'desc' => sprintf(
					// translators: %1$s and %2$s will be replaced with %CURRENT_URL% and %PERMALINK% tokens respectively
					__('The content to store in the QR code. You can use here any text or even URL.<br>Use %1$s to display the URL of the current page or %2$s to display the permalink of the current post.', 'shortcodes-ultimate'),
					'<b%value>%CURRENT_URL%</b>',
					'<b%value>%PERMALINK%</b>'
				),
			),
			'title' => array(
				'default' => '',
				'name' => __('Title', 'shortcodes-ultimate'),
				'desc' => __('Enter here short description. This text will be used in alt attribute of QR code', 'shortcodes-ultimate'),
			),
			'size' => array(
				'type' => 'slider',
				'min' => 10,
				'max' => 1000,
				'step' => 10,
				'default' => 200,
				'name' => __('Size', 'shortcodes-ultimate'),
				'desc' => __('Image width and height (in pixels)', 'shortcodes-ultimate'),
			),
			'margin' => array(
				'type' => 'slider',
				'min' => 0,
				'max' => 50,
				'step' => 5,
				'default' => 0,
				'name' => __('Margin', 'shortcodes-ultimate'),
				'desc' => __('Thickness of a margin (in pixels)', 'shortcodes-ultimate'),
			),
			'align' => array(
				'type' => 'select',
				'values' => array(
					'none' => __('None', 'shortcodes-ultimate'),
					'left' => __('Left', 'shortcodes-ultimate'),
					'center' => __('Center', 'shortcodes-ultimate'),
					'right' => __('Right', 'shortcodes-ultimate'),
				),
				'default' => 'none',
				'name' => __('Align', 'shortcodes-ultimate'),
				'desc' => __('Choose image alignment', 'shortcodes-ultimate'),
			),
			'link' => array(
				'default' => '',
				'name' => __('Link', 'shortcodes-ultimate'),
				'desc' => __('You can make this QR code clickable. Enter here the URL', 'shortcodes-ultimate'),
			),
			'target' => array(
				'type' => 'select',
				'values' => array(
					'self' => __('Open in same tab', 'shortcodes-ultimate'),
					'blank' => __('Open in new tab', 'shortcodes-ultimate'),
				),
				'default' => 'blank',
				'name' => __('Link target', 'shortcodes-ultimate'),
				'desc' => __('Select link target', 'shortcodes-ultimate'),
			),
			'color' => array(
				'type' => 'color',
				'default' => '#000000',
				'name' => __('Primary color', 'shortcodes-ultimate'),
				'desc' => __('Pick a primary color', 'shortcodes-ultimate'),
			),
			'background' => array(
				'type' => 'color',
				'default' => '#ffffff',
				'name' => __('Background color', 'shortcodes-ultimate'),
				'desc' => __('Pick a background color', 'shortcodes-ultimate'),
			),
			'class' => array(
				'type' => 'extra_css_class',
				'name' => __('Extra CSS class', 'shortcodes-ultimate'),
				'desc' => __('Additional CSS class name(s) separated by space(s)', 'shortcodes-ultimate'),
				'default' => '',
			),
		),
		'desc' => __('Advanced QR code generator', 'shortcodes-ultimate'),
		'icon' => 'qrcode',
	)
);

function su_shortcode_qrcode($atts = null, $content = null)
{

	$atts = shortcode_atts(
		array(
			'data' => '',
			'title' => '',
			'size' => 200,
			'margin' => 0,
			'align' => 'none',
			'link' => '',
			'target' => 'blank',
			'color' => '#000000',
			'background' => '#ffffff',
			'class' => '',
		),
		$atts,
		'qrcode'
	);

	if (!$atts['data']) {
		return su_error_message('QR code', __('please specify the data', 'shortcodes-ultimate'));
	}

	$atts['data'] = str_replace(
		array('%CURRENT_URL%', '%PERMALINK%'),
		array(su_get_current_url(), get_permalink()),
		$atts['data']
	);

	$atts['data'] = sanitize_text_field($atts['data']);
	$atts['data'] = su_do_attribute($atts['data'], true);
	// https://core.trac.wordpress.org/ticket/11311
	$atts['data'] = str_replace('&amp;', '&', $atts['data']);

	if ($atts['link']) {

		$atts['link'] = sprintf(
			' href="%s"',
			esc_url(su_do_attribute($atts['link']))
		);

		$atts['class'] .= ' su-qrcode-clickable';

	}

	$atts['title'] = esc_attr($atts['title']);

	su_query_asset('css', 'su-shortcodes');

	$url = add_query_arg(
		array(
			'data' => rawurlencode($atts['data']),
			'size' => sprintf('%1$sx%1$s', intval($atts['size'])),
			'format' => 'png',
			'margin' => intval($atts['margin']),
			'color' => ltrim($atts['color'], '#'),
			'bgcolor' => ltrim($atts['background'], '#'),
		),
		'https://api.qrserver.com/v1/create-qr-code/'
	);

	return sprintf(
		'<span class="su-qrcode su-qrcode-align-%1$s%2$s"><a%3$s target="_%4$s" title="%5$s"><img src="%6$s" alt="%5$s" /></a></span>',
		/* %1$s */ esc_attr($atts['align']),
		/* %2$s */ su_get_css_class($atts),
		/* %3$s */ $atts['link'],
		/* %4$s */ esc_attr($atts['target']),
		/* %5$s */ esc_attr($atts['title']),
		/* %6$s */ esc_attr($url)
	);

}
