<?php

/**
 * Dynamic Styles Builder
 * 
 * @package JoyWordPressTheme
 * @since 1.0
 * @author CreoWorx
 * @version 1.0
 */
class JoyStyleBuilder {
	
	private $css_builder = array ();
	private $has_google_fonts = false;
	private $free_css = '';
	
	private $cache_folder = '';
	private $cache_url = '';
	private $cache_active = false;
	
	public function __construct() {
		
		if (joy_option ( 'production_mode_active', false ) == true) {
			$this->cache_active = true;
			$this->init_cache_folder ();
			
			$clear_cache = isset ( $_REQUEST ['clear_theme_cache'] ) ? $_REQUEST ['clear_theme_cache'] : '';
			if ($clear_cache == 'true') {
				$this->flush_cache ();
			}
			
			add_action ( 'admin_bar_menu', array ($this, "attach_admin_barmenu" ), 89 );
		}
		
		add_action ( 'wp_enqueue_scripts', array ($this, 'build_user_styles' ) );
		add_action ( 'wp_enqueue_scripts', array ($this, 'output_user_styles' ), 99 );
		add_action ( 'wp_enqueue_scripts', array ($this, 'output_user_footer_scripts' ), 99 );
	}
	
	public function attach_admin_barmenu() {
		global $post;
		
		$url = '';
		if (isset ( $post )) {
			$url = get_permalink ( $post->ID );
		} else {
			$url = get_bloginfo ( 'url' );
		}
		
		
		$this->add_root_menu ( esc_html__ ( 'Clear Theme Cache', 'brunch-lite' ), 'brunch-lite', esc_url($url) . '?clear_theme_cache=true' );
	}
	
	function add_root_menu($name, $id, $href = FALSE) {
		global $wp_admin_bar;
		if (! is_super_admin () || ! is_admin_bar_showing ())
			return;
		
		$wp_admin_bar->add_menu ( array ('id' => $id, 'meta' => array (), 'title' => $name, 'href' => $href ) );
	}
	
	/**
	 * Initialize cache folders path and URL - this is folder where customized
	 * styles
	 * will be saved into single file for faster resource load
	 */
	
	public function init_cache_folder() {
		$upload_dir = wp_upload_dir ();
		
		$base_path = $upload_dir ['basedir'] . '/joy/';
		$base_url = $upload_dir ['baseurl'] . '/joy/';
		
		if (is_ssl ()) {
			$base_url = str_replace ( 'http://', 'https://', $base_url );
		}
		
		if (! is_dir ( $base_path )) {
			if (! mkdir ( $base_path, 0777 )) {
				
				return false;
			}
		
		}
		
		$this->cache_folder = $base_path;
		$this->cache_url = $base_url;
	}
	
	public function save_in_cache_customized_styles($code = '') {
		global $wp_filesystem;
		
		if ($code == '') {
			return false;
		}
		
		// Initialize the WP filesystem, no more using 'file-put-contents' function
		if (empty($wp_filesystem)) {
			require_once (ABSPATH . '/wp-admin/includes/file.php');
			WP_Filesystem();
		}
		
		$filename = $this->cache_folder . 'joy-user.css';
				
		$contentdir = trailingslashit( $this->cache_folder );
		$wp_filesystem->put_contents( $filename, $code, FS_CHMOD_FILE);
	}
	
	public function exist_cache_customized_styles() {
		$filename = $this->cache_folder . 'joy-user.css';
		if (file_exists ( $filename )) {
			return true;
		} else {
			return false;
		}
	}
	
	public function flush_cache() {
		
		if (! $this->cache_active) {
			return;
		}
		
		$filename = $this->cache_folder . 'joy-user.css';
		if (file_exists ( $filename )) {
			unlink ( $filename );
		}
	}
	
	public function compress_css_inline($inline_css) {
		// Remove comments
		$inline_css = preg_replace ( '!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $inline_css );
		
		// Remove space after colons
		$inline_css = str_replace ( ': ', ':', $inline_css );
		
		// Remove whitespace
		$inline_css = str_replace ( array ("\r\n", "\r", "\n", "\t", '  ', '    ', '    ' ), '', $inline_css );
		
		// Write everything out
		return $inline_css;
	}
	
	public function output_user_footer_scripts() {
		$output_js = joy_option ( 'custom_js_footer', '' );
		if ($output_js != '') {
			wp_add_inline_script('joy-components', $output_js);
		}
	}
	
	public function output_user_styles() {
		
		if (! $this->cache_active) {
			$output = $this->compile ();
			$output .= joy_option ( 'custom_css', '' );
			
			if ($output != '') {
				wp_add_inline_style('brunch-lite', $this->compress_css_inline ( $output ));
			}
		} else {
			if (! $this->exist_cache_customized_styles ()) {
				$output = $this->compile ();
				$output .= joy_option ( 'custom_css', '' );
				
				$this->save_in_cache_customized_styles ( $this->compress_css_inline ( $output ) );
			}
		}
		
		$output_js = joy_option ( 'custom_js_header', '' );
		if ($output_js != '') {
			wp_add_inline_script('joy-components', $output_js);
		}
	}
	
	public function build_user_styles() {
		
		if (!$this->cache_active || ($this->cache_active && !$this->exist_cache_customized_styles())) {
			$output = '';
			
			$this->build_global_styles();
		}
		
		if ($this->cache_active) {
			wp_enqueue_style ( 'joy-user-styles', $this->cache_url . 'joy-user.css', array (), BRUNCH_VERSION );
		}
		
	}
	
	public function build_global_styles() {
		
		$bg_color = joy_option('background_color', '#ffffff');
		
		if (strtoupper($bg_color) != '#FFFFFF') {
			$this->register_option('body', 'background-color', $bg_color);
		}
		
		$text_color = joy_option('text_color', '#000000');
		if ($text_color != '#000000') {
			$this->register_option('body', 'color', $text_color);
		}
		
		$link_color = joy_option('link_color', '#000000');
		if ($link_color != '#000000') {
			$this->register_option('body a', 'color', $link_color);
			$this->register_option('.classic-preview .read-more-button a:hover', 'background', $link_color);
			$this->register_option('.classic-preview .read-more-button a:hover', 'color', '#fff');
		}
		
		$hover_color = joy_option('hover_color', '#000000');
		if ($hover_color != '#000000') {
			$this->register_option('body a:hover', 'color', $hover_color);
		}
		
		if (joy_option('remove_underline_effect', false)) {
			$this->register_option('.entry-content a', 'border-bottom', '0');
			$this->register_option('.meta a:hover', 'border-bottom-color, .site-footer p:first-child a:hover, .site-footer p + p a:hover', 'transparent');
		}
		
		$logo_height = joy_option('logo_height', '');
		if ($logo_height != '') {
			$this->register_option('.site-header .custom-logo img', 'max-height', $logo_height.'px');
		}
		
		$logo_width = joy_option('logo_width', '');
		if ($logo_width != '') {
			$this->register_option('.site-header .custom-logo img', 'min-width', $logo_width.'px');
		}
		
		/** Menu **/
		$menu_link_color = joy_option('menu_link_color', '#000000');
		if ($menu_link_color != '#000000') {
			$this->register_option('.alt-nav li a, .site-nav ul a', 'color', $menu_link_color);
			$this->register_option('.nav-toggle .bar', 'background-color', $menu_link_color);
		}
		
		$menu_hover_color = joy_option('menu_hover_color', '#000000');
		if ($menu_hover_color != '#000000') {
			$this->register_option('.alt-nav li a:hover, .site-nav ul a:hover, .site-nav ul:last-child .current-menu-item > a', 'color', $menu_hover_color);
			$this->register_option('.nav-toggle:hover .bar', 'background-color', $menu_hover_color);
		}
		
		$second_text_color = joy_option('second_text_color', '#999999');
		if ($second_text_color != '#999999') {
			$this->register_option('.meta, .comment-metadata, .comments-pagination .page-numbers.dots, .comment-respond .logged-in-as, .post-pagination a, .site-footer p + p, .site-footer p + p a:hover, .site-header .site-title a:hover, .site-nav ul + ul a, .site-nav footer p:last-child', 'color', $second_text_color);
		}
		
		$blog_gutter = joy_option('blog_gutter', '10');
		if ($blog_gutter != '10') {
			$this->register_option('.post-preview', 'padding', $blog_gutter.'px');
			$this->register_option('.classic-preview', 'padding', $blog_gutter.'px');
		}
		
		$submenu_color = joy_option('submenu_color', '#000000');
		if ($submenu_color != '#000000') {
			$this->register_option('.alt-nav ul', 'background', $submenu_color);
			$this->register_option('.alt-nav ul:after', 'border-bottom-color', $submenu_color);
			$this->register_option('.alt-nav ul ul:after', 'border-right-color', $submenu_color);
			$this->register_option('.alt-nav ul ul:after', 'border-bottom-color', 'transparent');
		}		

		$submenu_color_link = joy_option('submenu_color_link', '#ffffff');
		if ($submenu_color_link != '#ffffff') {
			$this->register_option('.alt-nav ul a', 'color', $submenu_color_link);
		}
		
		$menu_fontsize = joy_option('menu_fontsize', '13');
		if ($menu_fontsize != '13') {
			$this->register_option('.alt-nav li', 'font-size', $menu_fontsize.'px');
		}
		
		$menu_transfrom = joy_option('menu_transfrom', 'uppercase');
		if ($menu_transfrom != 'uppercase') {
			$this->register_option('.alt-nav li', 'text-transform', $menu_transfrom);
		}
		
		$menu_fontweight = joy_option('menu_fontweight', 'normal');
		if ($menu_fontweight != 'normal') {
			$this->register_option('.alt-nav li', 'font-weight', $menu_fontweight);
		}
		
		$content_fontsize = joy_option('content_fontsize', '20');
		if ($content_fontsize != '20') {
			$this->register_option('body', 'font-size', $content_fontsize.'px');
		}
		
		$font_heading1_size = joy_option('font_heading1_size', '40');
		if ($font_heading1_size != '40' && $font_heading1_size != '') {
			$this->register_option('.entry-content h1', 'font-size', $font_heading1_size.'px');
		}

		$font_heading2_size = joy_option('font_heading2_size', '32');
		if ($font_heading2_size != '32' && $font_heading2_size != '') {
			$this->register_option('.entry-content h2', 'font-size', $font_heading2_size.'px');
		}
		
		$font_heading3_size = joy_option('font_heading3_size', '28');
		if ($font_heading3_size != '28' && $font_heading3_size != '') {
			$this->register_option('.entry-content h3', 'font-size', $font_heading3_size.'px');
		}

		$font_heading4_size = joy_option('font_heading4_size', '24');
		if ($font_heading4_size != '24' && $font_heading4_size != '') {
			$this->register_option('.entry-content h4', 'font-size', $font_heading4_size.'px');
		}
		
		$font_heading5_size = joy_option('font_heading5_size', '20');
		if ($font_heading5_size != '20' && $font_heading5_size != '') {
			$this->register_option('.entry-content h5', 'font-size', $font_heading5_size.'px');
		}

		$font_heading6_size = joy_option('font_heading6_size', '14');
		if ($font_heading6_size != '14' && $font_heading6_size != '') {
			$this->register_option('.entry-content h6', 'font-size', $font_heading6_size.'px');
		}
		
		// Google Fonts Loading if needed
		
		$default_font_content_family = joy_option('default_font_content_family', '');
		$default_font_heading_family = joy_option('default_font_heading_family', '');
		$default_font_navigation_family = joy_option('default_font_navigation_family', '');
		
		if ($default_font_content_family != '' || $default_font_heading_family != '' || $default_font_navigation_family != '') {
			require get_template_directory () . '/includes/class-joy-googlefonts.php';
			JoyGoogleFonts::get_instance ();
			
			if ($default_font_content_family != '') {
				
				if (strpos($default_font_content_family, ' ' !== false)) {
					$default_font_content_family = "'".$default_font_content_family."'";
				}
				
				$this->register_option('body', 'font-family', $default_font_content_family);
			}
			
			if ($default_font_heading_family != '') {
			
				if (strpos($default_font_heading_family, ' ' !== false)) {
					$default_font_heading_family = "'".$default_font_heading_family."'";
				}
			
				$this->register_option('h1,h2,h3,h4,h5,h6', 'font-family', $default_font_heading_family);
			}
			
			if ($default_font_navigation_family != '') {
					
				if (strpos($default_font_navigation_family, ' ' !== false)) {
					$default_font_navigation_family = "'".$default_font_navigation_family."'";
				}
					
				$this->register_option('.alt-nav,.site-nav .menus', 'font-family', $default_font_navigation_family);
			}
		}
	}
	
	/**
	 * Build customized CSS to ready for print in header
	 *
	 * @return string
	 */
	public function compile() {
		$output = '';
		
		foreach ( $this->css_builder as $selector => $properties ) {
			$output .= $selector . '{';
			
			foreach ( $properties as $key => $value ) {
				if ($value != '')
					$output .= $key . ':' . $value . ';';
			}
			
			$output .= '}';
		}
		
		$output .= $this->free_css;
		
		return $output;
	}
	
	/**
	 * Register multiple selectors at same time with same styles
	 *
	 * @param $selectors unknown_type       	
	 * @param $type unknown_type       	
	 * @param $value unknown_type       	
	 * @param $important unknown_type       	
	 */
	public function register_options($selectors, $type, $value, $important = true) {
		if (! is_array ( $selectors ))
			return;
		
		foreach ( $selectors as $selector ) {
			$this->register_option ( $selector, $type, $value, $important );
		}
	}
	
	/**
	 * Register generated CSS with property and value
	 *
	 * @param $selector string       	
	 * @param $type string       	
	 * @param $value string       	
	 * @param $important boolean
	 *       	 (optional default is false)
	 */
	public function register_option($selector, $type, $value, $important = true) {
		if (! isset ( $this->css_builder [$selector] )) {
			$this->css_builder [$selector] = array ();
		}
		
		$this->css_builder [$selector] [$type] = $value . ($important ? '!important' : '');
	}
	
	public function parse_color($param, $selectors, $property_type = '', $important = true, $merge_selectors = false) {
		$value = joy_option ( $param, '' );
		
		if ($this->is_default_value ( $value ))
			return;
		
		if ($merge_selectors && is_array ( $selectors )) {
			$selectors = implode ( ',', $selectors );
		}
		
		if (is_array ( $selectors )) {
			$this->register_options ( $selectors, $property_type, $value, $important );
		} else {
			$this->register_option ( $selectors, $property_type, $value, $important );
		}
	}
	
	public function get_link_color($param, $state = 'link') {
		$value = joy_option ( $param, array () );
		$result = '';
		
		if (! is_array ( $value ))
			return $result;
		
		return isset ( $value [$state] ) ? $value [$state] : '';
	}
	
	public function parse_link_color($param, $selectors, $hover_selectors, $active_selectors, $important = true) {
		$value = joy_option ( $param, array () );
		
		if (! is_array ( $value ))
			return;
		
		$link = isset ( $value ['link'] ) ? $value ['link'] : '';
		$hover = isset ( $value ['hover'] ) ? $value ['hover'] : '';
		$active = isset ( $value ['active'] ) ? $value ['active'] : '';
		
		if (! $this->is_default_value ( $link )) {
			if (is_array ( $selectors )) {
				$this->register_options ( $selectors, 'color', $link, $important );
			} else {
				$this->register_option ( $selectors, 'color', $link, $important );
			}
		}
		
		if (! $this->is_default_value ( $hover )) {
			if (is_array ( $hover_selectors )) {
				$this->register_options ( $hover_selectors, 'color', $hover, $important );
			} else {
				$this->register_option ( $hover_selectors, 'color', $hover, $important );
			}
		}
		
		if (! $this->is_default_value ( $active )) {
			if (is_array ( $active_selectors )) {
				$this->register_options ( $active_selectors, 'color', $active, $important );
			} else {
				$this->register_option ( $active_selectors, 'color', $active, $important );
			}
		}
	}
	
	public function parse_option($param, $selectors, $type, $important = true) {
		$value = joy_option ( $param, '' );
		
		if ($this->is_default_value ( $value ))
			return;
		
		if (is_array ( $selectors ))
			$this->register_options ( $selectors, $type, $value, $important );
		else
			$this->register_option ( $selectors, $type, $value, $important );
	}
	
	public function parse_padding($param, $selectors, $important = true) {
		$value = joy_option ( $param, '' );
		
		if (! is_array ( $value )) {
			return;
		}
		
		foreach ( $value as $key => $pair ) {
			if ($this->is_default_value ( $pair ))
				continue;
			
			$register_css = 'padding-' . $key;
			
			if (is_array ( $selectors )) {
				$this->register_options ( $selectors, $register_css, $pair, $important );
			} else {
				$this->register_option ( $selectors, $register_css, $pair, $important );
			}
		}
	}
	
	public function parse_fontfamily($param, $selectors, $important = true) {
		$value = joy_option ( $param, '' );
		
		if ($value != '') {
			if (is_array ( $selectors )) {
				$this->register_options ( $selectors, 'font-family', $value, $important );
			} else {
				$this->register_option ( $selectors, 'font-family', $value, $important );
			}
			
			$this->has_google_fonts = true;
		}
	}
	
	public function parse_typography($param, $selectors, $important = true) {
		$value = joy_option ( $param, '' );
		
		if (! is_array ( $value )) {
			return;
		}
		
		if ($param == 'default_font_heading' || $param == 'default_font_content') {
			$is_set_font = isset ( $value ['font-family'] ) ? $value ['font-family'] : '';
			if ($is_set_font == '') {
				return;
			}
		}
		
		foreach ( $value as $key => $pair ) {
			$register_css = $key;
			if ($register_css == 'variant')
				$register_css = 'font-weight';
				
				// for default font replacement we do not need font weight -
			// this will avoid CSS issues
			if ($key == 'variant') {
				if ($param == 'default_font_heading' || $param == 'default_font_content') {
					continue;
				}
			}
			
			if ($key == 'subsets')
				continue;
			if ($this->is_default_value ( $pair ))
				continue;
			
			if (is_array ( $selectors )) {
				$this->register_options ( $selectors, $register_css, $pair, $important );
			} else {
				$this->register_option ( $selectors, $register_css, $pair, $important );
			}
			
			if ($key == 'font-family' && $pair != '')
				$this->has_google_fonts = true;
		}
	}
	
	public function parse_background($param, $selector, $important = true) {
		$image = joy_option ( $param . '_image', '' );
		
		if ($this->is_default_value ( $image )) {
			return;
		}
		
		$no_mobile = joy_option ( $param . '_no_mobile', false );
		
		$repeat = joy_option ( $param . '_repeat', '' );
		$size = joy_option ( $param . '_size', '' );
		$size_custom = joy_option ( $param . '_size_custom', '' );
		$attachment = joy_option ( $param . '_attachment', '' );
		$position = joy_option ( $param . '_position', '' );
		
		if (! $no_mobile) {
			$this->register_option ( $selector, 'background-image', 'url(' . $image . ')' );
			if ($repeat != '') {
				$this->register_option ( $selector, 'background-repeat', $repeat );
			}
			
			if ($size != '' && $size != 'custom') {
				$this->register_option ( $selector, 'background-size', $size );
			}
			if ($size != '' && $size == 'custom' && $size_custom != '') {
				$this->register_option ( $selector, 'background-size', $size_custom );
			}
			
			if ($attachment != '') {
				$this->register_option ( $selector, 'background-attachment', $attachment );
			}
			
			if ($position != '') {
				$this->register_option ( $selector, 'background-position', $position );
			}
		} else {
			$this->free_css .= '@media screen and (min-width: 960px) {';
			$this->free_css .= $selector . '{ background-image: url(' . $image . '); }';
			
			if ($repeat != '') {
				$this->free_css .= $selector . '{ background-repeat: ' . $repeat . '; }';
			}
			
			if ($size != '' && $size != 'custom') {
				$this->free_css .= $selector . '{ background-size: ' . $size . '; }';
			}
			if ($size != '' && $size == 'custom' && $size_custom != '') {
				$this->free_css .= $selector . '{ background-size: ' . $size_custom . '; }';
			}
			
			if ($attachment != '') {
				$this->free_css .= $selector . '{ background-attachment: ' . $attachment . '; }';
			}
			
			if ($position != '') {
				$this->free_css .= $selector . '{ background-position: ' . $position . '; }';
			}
			$this->free_css .= '}';
		}
	}
	
	/**
	 * Check and return is the value applied in customizer eqaul to the default
	 *
	 * @param $value string       	
	 * @return boolean
	 */
	public function is_default_value($value = '') {
		if ($value == '') {
			return true;
		} else if (strtoupper ( $value ) == 'DEFAULT') {
			return true;
		} else if (strtoupper ( $value ) == 'INHERIT') {
			return true;
		} else {
			return false;
		}
	}
}

$joy_style_builder = new JoyStyleBuilder();