<?php

su_add_shortcode(
	array(
		'id' => 'button',
		'callback' => 'su_shortcode_button',
		'image' => su_get_plugin_url() . 'admin/images/shortcodes/button.svg',
		'name' => __('Button', 'shortcodes-ultimate'),
		'type' => 'wrap',
		'group' => 'content',
		'atts' => array(
			'url' => array(
				'values' => array(),
				'default' => get_option('home'),
				'name' => __('Link', 'shortcodes-ultimate'),
				'desc' => __('Button link', 'shortcodes-ultimate'),
			),
			'target' => array(
				'type' => 'select',
				'values' => array(
					'self' => __('Open in same tab', 'shortcodes-ultimate'),
					'blank' => __('Open in new tab', 'shortcodes-ultimate'),
				),
				'default' => 'self',
				'name' => __('Target', 'shortcodes-ultimate'),
				'desc' => __('Button link target', 'shortcodes-ultimate'),
			),
			'style' => array(
				'type' => 'select',
				'values' => array(
					'default' => __('Default', 'shortcodes-ultimate'),
					'flat' => __('Flat', 'shortcodes-ultimate'),
					'ghost' => __('Ghost', 'shortcodes-ultimate'),
					'soft' => __('Soft', 'shortcodes-ultimate'),
					'glass' => __('Glass', 'shortcodes-ultimate'),
					'bubbles' => __('Bubbles', 'shortcodes-ultimate'),
					'noise' => __('Noise', 'shortcodes-ultimate'),
					'stroked' => __('Stroked', 'shortcodes-ultimate'),
					'3d' => __('3D', 'shortcodes-ultimate'),
				),
				'default' => 'default',
				'name' => __('Style', 'shortcodes-ultimate'),
				'desc' => __('Button background style preset', 'shortcodes-ultimate'),
			),
			'background' => array(
				'type' => 'color',
				'values' => array(),
				'default' => '#2D89EF',
				'name' => __('Background', 'shortcodes-ultimate'),
				'desc' => __('Button background color', 'shortcodes-ultimate'),
			),
			'color' => array(
				'type' => 'color',
				'values' => array(),
				'default' => '#FFFFFF',
				'name' => __('Text color', 'shortcodes-ultimate'),
				'desc' => __('Button text color', 'shortcodes-ultimate'),
			),
			'size' => array(
				'type' => 'slider',
				'min' => 1,
				'max' => 20,
				'step' => 1,
				'default' => 3,
				'name' => __('Size', 'shortcodes-ultimate'),
				'desc' => __('Button size', 'shortcodes-ultimate'),
			),
			'wide' => array(
				'type' => 'bool',
				'default' => 'no',
				'name' => __('Fluid', 'shortcodes-ultimate'),
				'desc' => __('Fluid buttons has 100% width', 'shortcodes-ultimate'),
			),
			'center' => array(
				'type' => 'bool',
				'default' => 'no',
				'name' => __('Centered', 'shortcodes-ultimate'),
				'desc' => __('Is button centered on the page', 'shortcodes-ultimate'),
			),
			'radius' => array(
				'type' => 'select',
				'values' => array(
					'auto' => __('Auto', 'shortcodes-ultimate'),
					'round' => __('Round', 'shortcodes-ultimate'),
					'0' => __('Square', 'shortcodes-ultimate'),
					'5' => '5px',
					'10' => '10px',
					'20' => '20px',
				),
				'default' => 'auto',
				'name' => __('Radius', 'shortcodes-ultimate'),
				'desc' => __('Radius of button corners. Auto-radius calculation based on button size', 'shortcodes-ultimate'),
			),
			'icon' => array(
				'type' => 'icon',
				'default' => '',
				'name' => __('Icon', 'shortcodes-ultimate'),
				'desc' => __('You can upload custom icon for this button or pick a built-in icon', 'shortcodes-ultimate'),
			),
			'icon_color' => array(
				'type' => 'color',
				'default' => '#FFFFFF',
				'name' => __('Icon color', 'shortcodes-ultimate'),
				'desc' => __('This color will be applied to the selected icon. Does not works with uploaded icons', 'shortcodes-ultimate'),
			),
			'text_shadow' => array(
				'type' => 'shadow',
				'default' => 'none',
				'name' => __('Text shadow', 'shortcodes-ultimate'),
				'desc' => __('Button text shadow', 'shortcodes-ultimate'),
			),
			'desc' => array(
				'default' => '',
				'name' => __('Description', 'shortcodes-ultimate'),
				'desc' => __('Small description under button text. This option is incompatible with icon.', 'shortcodes-ultimate'),
			),
			'download' => array(
				'default' => '',
				'name' => __('Download', 'shortcodes-ultimate'),
				'desc' => __('The download attribute specifies that the button URL will be downloaded when a user clicks on the button. The value of the attribute will be the name of the downloaded file.', 'shortcodes-ultimate'),
			),
			'onclick' => array(
				'default' => '',
				'name' => __('onClick', 'shortcodes-ultimate'),
				'desc' => __('Advanced JavaScript code for onClick action', 'shortcodes-ultimate'),
			),
			'rel' => array(
				'default' => '',
				'name' => __('Rel attribute', 'shortcodes-ultimate'),
				'desc' => __('Here you can add value for the rel attribute.<br>Example values: <b%value>nofollow</b>, <b%value>lightbox</b>', 'shortcodes-ultimate'),
			),
			'title' => array(
				'default' => '',
				'name' => __('Title attribute', 'shortcodes-ultimate'),
				'desc' => __('Here you can add value for the title attribute', 'shortcodes-ultimate'),
			),
			'id' => array(
				'default' => '',
				'name' => __('Button ID', 'shortcodes-ultimate'),
				'desc' => __('Custom value for the ID attribute', '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' => '',
			),
		),
		'content' => __('Button text', 'shortcodes-ultimate'),
		'desc' => __('Styled button', 'shortcodes-ultimate'),
		'example' => 'buttons',
		'icon' => 'heart',
	)
);

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

	$atts = shortcode_atts(
		array(
			'url' => get_option('home'),
			'link' => null, // 3.x
			'target' => 'self',
			'style' => 'default',
			'background' => '#2D89EF',
			'color' => '#FFFFFF',
			'dark' => null, // 3.x
			'size' => 3,
			'wide' => 'no',
			'center' => 'no',
			'radius' => 'auto',
			'icon' => false,
			'icon_color' => '#FFFFFF',
			'ts_color' => null, // Dep. 4.3.2
			'ts_pos' => null, // Dep. 4.3.2
			'text_shadow' => 'none',
			'desc' => '',
			'download' => '',
			'onclick' => '',
			'rel' => '',
			'title' => '',
			'id' => '',
			'class' => '',
		),
		$atts,
		'button'
	);

	$atts['target'] = sanitize_key($atts['target']);
	$atts['style'] = sanitize_key($atts['style']);
	$atts['background'] = su_sanitize_css_color($atts['background']);
	$atts['color'] = su_sanitize_css_color($atts['color']);
	$atts['size'] = intval($atts['size']);
	$atts['wide'] = sanitize_key($atts['wide']);
	$atts['center'] = sanitize_key($atts['center']);
	$atts['radius'] = sanitize_key($atts['radius']);
	$atts['icon_color'] = su_sanitize_css_color($atts['icon_color']);
	$atts['text_shadow'] = preg_replace('/[^a-z\d\#\(\)\.\-\,% ]+/i', '', $atts['text_shadow']);

	if ($atts['link'] !== null) {
		$atts['url'] = $atts['link'];
	}

	if ($atts['dark'] !== null) {
		$atts['background'] = $atts['color'];
		$atts['color'] = ($atts['dark']) ? '#000' : '#fff';
	}

	// 3.x
	if (is_numeric($atts['style'])) {
		$atts['style'] = str_replace(array('1', '2', '3', '4', '5'), array('default', 'glass', 'bubbles', 'noise', 'stroked'), $atts['style']);
	}

	$a_css = array();
	$span_css = array();
	$img_css = array();
	$small_css = array();
	$before = '';
	$after = '';

	$shadows = array(
		'none' => '0 0',
		'top' => '0 -1px',
		'right' => '1px 0',
		'bottom' => '0 1px',
		'left' => '-1px 0',
		'top-right' => '1px -1px',
		'top-left' => '-1px -1px',
		'bottom-right' => '1px 1px',
		'bottom-left' => '-1px 1px',
	);

	$styles = array(
		'size' => round(($atts['size'] + 7) * 1.3),
		'ts_color' => $atts['ts_color'] === 'light'
			? su_adjust_lightness($atts['background'], 50)
			: su_adjust_lightness($atts['background'], -40),
		'ts_pos' => $atts['ts_pos'] !== null && isset($shadows[$atts['ts_pos']])
			? $shadows[$atts['ts_pos']]
			: $shadows['none'],
	);

	$radius = '0px';

	if ($atts['radius'] === 'auto') {
		// phpcs:ignore
		$radius = round($atts['size'] + 2) . 'px';
	}
	if ($atts['radius'] == 'round') {
		$radius = round((($atts['size'] * 2) + 2) * 2 + $styles['size']) . 'px';
	}
	if (is_numeric($atts['radius'])) {
		$radius = intval($atts['radius']) . 'px';
	}

	$a_rules = array(
		'color' => $atts['color'],
		'background-color' => $atts['background'],
		'border-color' => su_adjust_lightness($atts['background'], -20),
		'border-radius' => $radius,
	);

	$span_rules = array(
		'color' => $atts['color'],
		'padding' => $atts['icon']
			? round(($atts['size']) / 2 + 4) . 'px ' . round($atts['size'] * 2 + 10) . 'px'
			: '0px ' . round($atts['size'] * 2 + 10) . 'px',
		'font-size' => $styles['size'] . 'px',
		'line-height' => $atts['icon']
			? round($styles['size'] * 1.5) . 'px'
			: round($styles['size'] * 2) . 'px',
		'border-color' => su_adjust_lightness($atts['background'], 30),
		'border-radius' => $radius,
		'text-shadow' => $styles['ts_pos'] . ' 1px ' . $styles['ts_color'],
	);

	if ($atts['ts_color'] === null && $atts['ts_pos'] === null) {
		$span_rules['text-shadow'] = $atts['text_shadow'];
	}

	// CSS rules for <img> tag
	$img_rules = array(
		'width' => round($styles['size'] * 1.5) . 'px',
		'height' => round($styles['size'] * 1.5) . 'px',
	);

	// CSS rules for <small> tag
	$small_rules = array(
		'padding-bottom' => round(($atts['size']) / 2 + 4) . 'px',
		'color' => $atts['color'],
	);

	// Create style attr value for <a> tag
	foreach ($a_rules as $a_rule => $a_value) {
		$a_css[] = $a_rule . ':' . str_replace(';', '', $a_value);
	}

	// Create style attr value for <span> tag
	foreach ($span_rules as $span_rule => $span_value) {
		$span_css[] = $span_rule . ':' . str_replace(';', '', $span_value);
	}

	// Create style attr value for <img> tag
	foreach ($img_rules as $img_rule => $img_value) {
		$img_css[] = $img_rule . ':' . str_replace(';', '', $img_value);
	}

	// Create style attr value for <img> tag
	foreach ($small_rules as $small_rule => $small_value) {
		$small_css[] = $small_rule . ':' . $small_value;
	}

	$classes = array('su-button', 'su-button-style-' . $atts['style']);

	if ($atts['class']) {
		$classes[] = $atts['class'];
	}

	if ($atts['wide'] === 'yes') {
		$classes[] = 'su-button-wide';
	}

	$icon = '';

	if ($atts['icon'] && strpos($atts['icon'], 'icon:') !== false) {
		$icon = '<i class="sui sui-' . sanitize_key(str_replace('icon:', '', $atts['icon'])) . '" style="font-size:' . $styles['size'] . 'px;color:' . esc_attr($atts['icon_color']) . '"></i>';
		su_query_asset('css', 'su-icons');
	}
	if ($atts['icon'] && strpos($atts['icon'], '/') !== false) {
		$icon = '<img src="' . esc_url($atts['icon']) . '" alt="' . esc_attr($content) . '" style="' . implode(';', $img_css) . '" />';
	}

	// Prepare <small> with description
	$desc = $atts['desc']
		? '<small style="' . esc_attr(implode(';', $small_css)) . '">' . su_do_attribute($atts['desc'], true) . '</small>'
		: '';

	// Wrap with div if button centered
	if ($atts['center'] === 'yes') {
		$before .= '<div class="su-button-center">';
		$after .= '</div>';
	}

	// Replace icon marker in content,
	// add float-icon class to rearrange margins
	if (strpos($content, '%icon%') !== false) {
		$content = str_replace('%icon%', $icon, $content);
		$classes[] = 'su-button-float-icon';
	}

	// Button text has no icon marker, append icon to begin of the text
	else {
		$content = $icon . ' ' . $content;
	}

	// Prepare onclick action
	if ($atts['onclick'] && !su_is_unsafe_features_enabled()) {

		return su_error_message(
			'Button',
			sprintf(
				'%s.<br><a href="https://getshortcodes.com/docs/unsafe-features/" target="_blank">%s</a>',
				// translators: do not translate the <b>onclick</b> part, the <b>Unsafe features</b> must be translated
				__('The <b>onclick</b> attribute cannot be used while <b>Unsafe features</b> option is turned off', 'shortcodes-ultimate'),
				__('Learn more', 'shortcodes-ultimate')
			)
		);

	}

	if ($atts['onclick']) {
		$atts['onclick'] = ' onClick="' . esc_attr($atts['onclick']) . '"';
	}

	if ('blank' === $atts['target'] && '' === $atts['rel']) {
		$atts['rel'] = 'noopener noreferrer';
	}

	$atts['download'] = $atts['download']
		? ' download="' . esc_attr($atts['download']) . '"'
		: '';

	$atts['rel'] = $atts['rel']
		? ' rel="' . esc_attr($atts['rel']) . '"'
		: '';

	$atts['title'] = $atts['title']
		? ' title="' . su_do_attribute($atts['title']) . '"'
		: '';

	$atts['id'] = !empty($atts['id'])
		? ' id="' . esc_attr($atts['id']) . '"'
		: '';

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

	return $before . '<a href="' . esc_url(su_do_attribute($atts['url'])) . '" class="' . esc_attr(implode(' ', $classes)) . '" style="' . esc_attr(implode(';', $a_css)) . '" target="_' . esc_attr($atts['target']) . '"' . $atts['onclick'] . $atts['rel'] . $atts['title'] . $atts['id'] . $atts['download'] . '><span style="' . esc_attr(implode(';', $span_css)) . '">' . do_shortcode(stripcslashes($content)) . $desc . '</span></a>' . $after;

}