<?php
/**
 * Interface functions and definitions
 *
 * This file contains all the functions and it's defination that particularly can't be
 * in other files.
 * 
 * @package Theme Horse
 * @subpackage Interface
 * @since Interface 1.0
 */

/****************************************************************************************/

add_action( 'wp_enqueue_scripts', 'interface_scripts_styles_method' );
/**
 * Register jquery scripts
 */
function interface_scripts_styles_method() {

	global $options, $array_of_default_settings;
   $options = wp_parse_args( get_option( 'interface_theme_options', array() ), interface_get_option_defaults());

   /**
	 * Loads our main stylesheet.
	 */
	// Load our main stylesheet.
	wp_enqueue_style( 'interface_style', get_stylesheet_uri());
	wp_enqueue_style('interface-font-awesome', get_template_directory_uri().'/font-awesome/css/font-awesome.css');
	// Load the html5 shiv.
	wp_enqueue_script( 'html5', get_template_directory_uri() . '/js/html5.min.js', array(), '3.7.3' );
	wp_script_add_data( 'html5', 'conditional', 'lt IE 9' ); 
	
	if ('on' == $options['site_design']) {
	//Css for responsive design
	wp_enqueue_style( 'interface-responsive', get_template_directory_uri() . '/css/responsive.css');
	}
	/**
	 * Adds JavaScript to pages with the comment form to support
	 * sites with threaded comments (when in use).
	 */
	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) )
		wp_enqueue_script( 'comment-reply' );

	/**
	 * Register JQuery cycle js file for slider.
	 * Register Jquery fancybox js and css file for fancybox effect.
	 */
	wp_register_script( 'jquery_cycle', INTERFACE_JS_URL . '/jquery.cycle.all.js', array( 'jquery' ), '3.0.3', true );

   wp_register_style( 'google_fonts', '//fonts.googleapis.com/css?family=PT+Sans:400,700italic,700,400italic' ); 

	
	/**
	 * Enqueue Slider setup js file.
	 * Enqueue Fancy Box setup js and css file.	 
	 */	
	if( ( is_home() || is_front_page() ) && 1 != $options[ 'disable_slider' ] ) {
		wp_enqueue_script( 'interface_slider', INTERFACE_JS_URL . '/interface-slider-setting.js', array( 'jquery_cycle' ), false, true );
	}
  
	wp_enqueue_script( 'backtotop', INTERFACE_JS_URL. '/backtotop.js', array( 'jquery' ) );
	wp_enqueue_script( 'scripts', INTERFACE_JS_URL. '/scripts.js', array('jquery') );

   wp_enqueue_style( 'google_fonts' );

} 
/****************************************************************************************/

function interface_add_editor_styles() {
	$font_url = str_replace( ',', '%2C', '//fonts.googleapis.com/css?family=PT+Sans:400,700italic,700,400italic' );
	add_editor_style( $font_url );
}
add_action( 'after_setup_theme', 'interface_add_editor_styles' );

/****************************************************************************************/

add_action( 'admin_print_scripts', 'interface_media_js',10 );
/**
 * Register scripts for image upload
 *
 * @uses wp_register_script
 * Hooked to admin_print_scripts action hook
 */
function interface_media_js() {
	
    wp_enqueue_script( 'interface_meta_upload_widget', INTERFACE_ADMIN_JS_URL . '/add-image-script-widget.js', array( 'jquery','media-upload','thickbox' ) );
	wp_enqueue_style('thickbox');
	wp_enqueue_media();
	
}


/****************************************************************************************/

add_filter( 'wp_page_menu', 'interface_wp_page_menu' );
/**
 * Remove div from wp_page_menu() and replace with ul.
 * @uses wp_page_menu filter
 */
function interface_wp_page_menu ( $page_markup ) {
	preg_match('/^<div class=\"([a-z0-9-_]+)\">/i', $page_markup, $matches);
	$divclass = $matches[1];
	$replace = array('<div class="'.$divclass.'">', '</div>');
	$new_markup = str_replace($replace, '', $page_markup);
	$new_markup = preg_replace('/^<ul>/i', '<ul class="'.$divclass.'">', $new_markup);
	return $new_markup; 
}

/****************************************************************************************/

if ( ! function_exists( 'interface_pass_slider_effect_cycle_parameters' ) ) :
/**
 *Functions that Passes slider effect  parameters from php files to jquery file.  
 */
function interface_pass_slider_effect_cycle_parameters() {
    
    global $options, $array_of_default_settings;
    $options = wp_parse_args( get_option( 'interface_theme_options', array() ), interface_get_option_defaults());

    $transition_effect = $options[ 'transition_effect' ];
    $transition_delay = $options[ 'transition_delay' ] * 1000;
    $transition_duration = $options[ 'transition_duration' ] * 1000;
    wp_localize_script( 
        'interface_slider',
        'interface_slider_value',
        array(
            'transition_effect' => $transition_effect,
            'transition_delay' => $transition_delay,
            'transition_duration' => $transition_duration
        )
    );
    
}
endif;

/****************************************************************************************/

add_filter( 'excerpt_length', 'interface_excerpt_length' );
/**
 * Sets the post excerpt length to 50 words.
 *
 * function tied to the excerpt_length filter hook.
 *
 * @uses filter excerpt_length
 */
function interface_excerpt_length( $length ) {
	return 50;  // this will return 50 words in the excerpt
}

add_filter( 'excerpt_more', 'interface_continue_reading' );
/**
 * Returns a "Continue Reading" link for excerpts
 */
function interface_continue_reading() {
	return '&hellip; ';
}


add_filter( 'body_class', 'interface_body_class' );
/**
 * Filter the body_class
 *
 * Throwing different body class for the different layouts in the body tag
 */
function interface_body_class( $classes ) {
	global $post;	
	global $options, $array_of_default_settings;
   $options = wp_parse_args( get_option( 'interface_theme_options', array() ), interface_get_option_defaults());

	if( $post ) {
		$layout = get_post_meta( $post->ID,'interface_sidebarlayout', true ); 
	}
	if( empty( $layout ) || is_archive() || is_search() || is_home() ) {
		$layout = 'default';
	}
	if( 'default' == $layout ) {

		$themeoption_layout = $options[ 'default_layout' ];

		if( 'left-sidebar' == $themeoption_layout ) {
			$classes[] = 'left-sidebar-template';
		}
		elseif( 'right-sidebar' == $themeoption_layout  ) {
			$classes[] = '';
		}
		elseif( 'no-sidebar-full-width' == $themeoption_layout ) {
			$classes[] = 'full-width-template';
		}
			
		elseif( 'no-sidebar' == $themeoption_layout ) {
			$classes[] = 'no-sidebar-template';
		}
	}
	elseif( 'left-sidebar' == $layout ) {
      $classes[] = 'left-sidebar-template';
   }
   elseif( 'right-sidebar' == $layout ) {
		$classes[] = ''; //css blank
	}
	elseif( 'no-sidebar-full-width' == $layout ) {
		$classes[] = 'full-width-template';
	}
	
	elseif( 'no-sidebar' == $layout ) {
		$classes[] = 'no-sidebar-template'; //css for no-sidebar-template from <body >
	}
	if( is_home() || is_front_page())
	{
		
		if( is_page_template( 'page-templates/page-template-business.php' ) ) {
			
			$classes[] = 'business-layout';
		}else{
			$classes[] = '';        // css for home page with body class.
			}
	}

	if( is_page_template( 'page-templates/page-template-blog-image-medium.php' ) ) {
		$classes[] = 'blog-medium';
	}
	if( 'narrow-layout' == $options[ 'site_layout' ] ) {
		$classes[] = 'narrow-layout';
	}

	return $classes;
}

/****************************************************************************************/

add_action('wp_head', 'interface_internal_css');
/**
 * Hooks the Custom Internal CSS to head section
 */
function interface_internal_css() { 


		global $options, $array_of_default_settings;
      $options = wp_parse_args( get_option( 'interface_theme_options', array() ), interface_get_option_defaults());

		if( !empty( $options[ 'custom_css' ] ) ) {
			$interface_internal_css = '<!-- '.get_bloginfo('name').' Custom CSS Styles -->' . "\n";
			$interface_internal_css .= '<style type="text/css" media="screen">' . "\n";
			$interface_internal_css .=  $options['custom_css'] . "\n";
			$interface_internal_css .= '</style>' . "\n";
		}

	if(isset($interface_internal_css))
	echo $interface_internal_css;
}
/****************************************************************************************/
add_action( 'pre_get_posts','interface_alter_home' );
/**
 * Alter the query for the main loop in home page
 *
 * @uses pre_get_posts hook
 */
function interface_alter_home( $query ){
	global $options, $array_of_default_settings;
	$options = wp_parse_args( get_option( 'interface_theme_options', array() ), interface_get_option_defaults());
	$cats = $options[ 'front_page_category' ];

	if ( $options[ 'exclude_slider_post'] != 0 && !empty( $options[ 'featured_post_slider' ] ) ) {
		if( $query->is_main_query() && $query->is_home() ) {
			$query->query_vars['post__not_in'] = $options[ 'featured_post_slider' ];
		}
	}

	if ( !in_array( '0', $cats ) ) {
		if( $query->is_main_query() && $query->is_home() ) {
			$query->query_vars['category__in'] = $options[ 'front_page_category' ];
		}
	}
}

/****************************************************************************************/

add_filter('wp_page_menu', 'interface_wp_page_menu_filter');
/**
 * @uses wp_page_menu filter hook
 */
if ( !function_exists('interface_wp_page_menu_filter') ) {
	function interface_wp_page_menu_filter( $text ) {
		$replace = array(
			'current_page_item'     => 'current-menu-item'
	 	);

	  $text = str_replace(array_keys($replace), $replace, $text);
	  return $text;
	}
}
/**************************************************************************************/

function interface_font_url() {
	$font_url = '';
	/*
	 * Translators: If there are characters in your language that are not supported
	 * by Lato, translate this to 'off'. Do not translate into your own language.
	 */
	if ( 'off' !== _x( 'on', 'Lato font: on or off', 'interface' ) ) {
		$font_url = add_query_arg( 'family', urlencode( 'Lato:300,400,700,900,300italic,400italic,700italic' ), "//fonts.googleapis.com/css" );
	}

	return $font_url;
}

/**************************************************************************************/
?>