<?php
/**
 * @copyright	Copyright (c) 2016 AmyTheme (http://www.amytheme.com). All rights reserved.
 * @license		http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

defined( 'ABSPATH' ) or die;

/**
 * Get sidebar name.
 */
if ( ! function_exists( 'amy_xmas_get_sidebar_name' ) ) {
	function amy_xmas_get_sidebar_name( $name ) {
		if ( empty( $GLOBALS['wp_registered_sidebars'] ) ) {
			return $name;
		}

		$sidebars	= get_option( 'stag_custom_sidebars' );
		$taken		= array();

		foreach ( $GLOBALS['wp_registered_sidebars'] as $sidebar ) {
			$taken[]	= $sidebar['name'];
		}

		if ( empty( $sidebars ) ) {
			$sidebars	= array();
		}

		$taken	= array_merge( $taken, $sidebars );

		if ( in_array( $name, $taken ) ) {
			$counter 	= substr( $name, -1 );

			if ( ! is_numeric( $counter ) ) {
				$new_name	= $name . ' 1';
			} else {
				$new_name	= substr( $name, 0, -1 ) . ((int) $counter + 1);
			}

			$name = amy_xmas_get_sidebar_name( $new_name );
		}

		return $name;
	}
}

/**
 * Get registered sidebars
 */
if ( ! function_exists( 'amy_xmas_wp_registered_sidebars' ) ) {
	function amy_xmas_wp_registered_sidebars() {
		global $wp_registered_sidebars;

		$widgets	= array();

		if ( ! empty( $wp_registered_sidebars ) ) {
			foreach ( $wp_registered_sidebars as $key => $value ) {
				$widgets[ $key ]	= $value['name'];
			}
		}

		return array_reverse( $widgets );
	}
}

/**
 * Check Google Fonts
 */
if ( ! function_exists( 'amy_xmas_is_google_font' ) ) {
	function amy_xmas_is_google_font( $font_family ) {
		static $google_fonts;

		if ( empty( $google_fonts ) ) {
			$google_json	= amy_get_google_fonts();

			if ( is_object( $google_json ) ) {
				$google_fonts	= array();

				foreach ( $google_json->items as $key => $font ) {
					$google_fonts[ $font->family ]	= $font->variants;
				}
			}
		}

		return is_array( $google_fonts ) && array_key_exists( $font_family, $google_fonts );
	}
}

/**
 * Enqueue Google Fonts.
 */
if ( ! function_exists( 'amy_xmas_enqueue_google_fonts' ) ) {
	function amy_xmas_enqueue_google_fonts() {
		$embed_fonts	= array();
		$query_args		= array();
		$subsets		= amy_get_option( 'subsets' );
		$subsets		= ! empty( $subsets ) ? '&subset=' . implode( ',', $subsets ) : '';
		$typography		= amy_get_option( 'typography' );
		$google_json	= amy_get_google_fonts();

		if ( empty( $typography ) ) {
			return;
		}

		foreach ( $typography as $font ) {
			if ( ! empty( $font['selector'] ) ) {
				if ( amy_xmas_is_google_font( $font['font']['family'] ) ) {
					$family		= $font['font']['family'];
					$variant	= $font['font']['variant'] != 'regular' ? $font['font']['variant'] : 400;
					$embed_fonts[ $family ]['variant'][ $variant ]	= $variant;
				}
			}
		}

		if ( ! empty( $embed_fonts ) ) {
			foreach ( $embed_fonts as $name => $font ) {
				$variants		= $font['variant'];
				$embed_variants	= ! empty( $font['variant'] ) ? ':' . implode( ',', $font['variant'] ) : '';
				$query_args[]	= $name . $embed_variants;
			}

			wp_enqueue_style( 'amy-xmas-google-fonts', esc_url( add_query_arg( 'family', urlencode( implode( '|', $query_args ) ) . $subsets, '//fonts.googleapis.com/css' ) ) );
		}
	}
}

/*
 * Get all custom sizes of image
 */
if ( ! function_exists( 'amy_xmas_get_image_sizes' ) ) {
	function amy_xmas_get_image_sizes( $force = false, $flip = true ) {
		$current_image_sizes	= get_intermediate_image_sizes();

		foreach ( $current_image_sizes as $image_size ) {
			$dimenssion					= (in_array( $image_size, array( 'thumbnail', 'medium', 'large' ) )) ? ' - (' . get_option( $image_size . '_size_w' ) . 'x' . get_option( $image_size . '_size_h' ) . ')' : '';
			$image_sizes[ $image_size ]	= $image_size . $dimenssion;
		}

		if ( $force ) {
			$get_custom_image_sizes	= amy_get_option( 'custom_image_sizes' );

			if ( ! empty( $get_custom_image_sizes ) ) {
				foreach ( $get_custom_image_sizes as $custom_size ) {
					$name						= sanitize_title( $custom_size['img_size_name'] );
					$custom_image_sizes[ $name ]	= $name . ' - (' . $custom_size['img_size_width'] . 'x' . $custom_size['img_size_height'] . ')';
				}

				$image_sizes	= array_filter( array_merge( $image_sizes, $custom_image_sizes ) );
			}
		}

		$image_sizes['full']	= 'full (orginal size)';
		$image_sizes			= ($flip) ? array_flip( $image_sizes ) : $image_sizes;

		return apply_filters( 'amy_xmas_custom_image_sizes', $image_sizes );
	}
}

/**
 * encapsulates post-classes to use them on different tags
 */
if ( ! function_exists( 'amy_xmas_get_post_classes' ) ) {
	function amy_xmas_get_post_classes( $classes = array() ) {
		// Adds a class for microformats v2
		$classes[] = 'h-entry';

		// add hentry to the same tag as h-entry
		$classes[] = 'hentry';

		// adds microformats 2 activity-stream support
		// for pages and articles
		if ( get_post_type() === 'page' ) {
			$classes[] = 'h-as-page';
		}
		if ( ! get_post_format() && 'post' === get_post_type() ) {
			$classes[] = 'h-as-article';
		}

		// adds some more microformats 2 classes based on the
		// posts "format"
		switch ( get_post_format() ) {
			case 'aside':
			case 'status':
				$classes[] = 'h-as-note';
				break;
			case 'audio':
				$classes[] = 'h-as-audio';
				break;
			case 'video':
				$classes[] = 'h-as-video';
				break;
			case 'gallery':
			case 'image':
				$classes[] = 'h-as-image';
				break;
			case 'link':
				$classes[] = 'h-as-bookmark';
				break;
		}

		return array_unique( $classes );
	}
}

/**
 * add semantics
 *
 * @param string $id the class identifier
 * @return array
 */
if ( ! function_exists( 'amy_xmas_get_semantics' ) ) {
	function amy_xmas_get_semantics( $id = null ) {
		$classes = array();

		// add default values
		switch ( $id ) {
			case 'body':
				if ( ! is_singular() ) {
					$classes['itemscope'] 	= array( '' );
					$classes['itemtype'] 	= array( 'http://schema.org/Blog' );
				} elseif ( is_single() ) {
					$classes['itemscope'] 	= array( '' );
					$classes['itemtype'] 	= array( 'http://schema.org/BlogPosting' );
				} elseif ( is_page() ) {
					$classes['itemscope'] 	= array( '' );
					$classes['itemtype'] 	= array( 'http://schema.org/WebPage' );
				}

				break;
			case 'site-title':
				if ( ! is_singular() ) {
					$classes['itemprop'] 	= array( 'name' );
					$classes['class'] 		= array( 'p-name' );
				}

				break;
			case 'site-description':
				if ( ! is_singular() ) {
					$classes['itemprop'] 	= array( 'description' );
					$classes['class'] 		= array( 'p-summary', 'e-content' );
				}

				break;
			case 'site-url':
				if ( ! is_singular() ) {
					$classes['itemprop'] 	= array( 'url' );
					$classes['class'] 		= array( 'u-url', 'url' );
				}

				break;
			case 'post':
				if ( ! is_singular() ) {
					$classes['itemprop'] 	= array( 'blogPost' );
					$classes['itemscope'] 	= array( '' );
					$classes['itemtype'] 	= array( 'http://schema.org/BlogPosting' );
				}

				break;
		}

		$classes = apply_filters( 'amy_xmas_semantics', $classes, $id );
		$classes = apply_filters( "amy_xmas_semantics_{$id}", $classes, $id );

		return $classes;
	}
}

/**
 * echos the semantic classes added via
 *
 * @param string $id the class identifier
 */
if ( ! function_exists( 'amy_xmas_semantics' ) ) {
	function amy_xmas_semantics( $id ) {
		$classes = amy_xmas_get_semantics( $id );

		if ( ! $classes ) {
			return;
		}

		foreach ( $classes as $key => $value ) {
			echo ' ' . esc_attr( $key ) . '="' . esc_attr( join( ' ', $value ) ) . '"';
		}
	}
}

/*
 * Custom JS
 */
if ( ! function_exists( 'amy_xmas_custom_js' ) ) {
	function amy_xmas_custom_js() {
		$custom_js = amy_get_option( 'custom_js' );

		if ( $custom_js ) {
			return '<script type="text/javascript">' . $custom_js . '</script>';
		}
	}
}