<?php
/**
 * Utility classes and functions.
 *
 * @author     Sudar
 *
 * @package    BulkDelete\Util
 */
defined( 'ABSPATH' ) || exit; // Exit if accessed directly

/**
 * Utility class.
 *
 * Ideally most of the functions should be inside the `BulkDelete\Util` and not as static functions.
 */
class BD_Util {
	// Meta boxes
	const VISIBLE_POST_BOXES     = 'metaboxhidden_toplevel_page_bulk-delete-posts';
	const VISIBLE_PAGE_BOXES     = 'metaboxhidden_bulk-delete_page_bulk-delete-pages';
	const VISIBLE_USER_BOXES     = 'metaboxhidden_bulk-delete_page_bulk-delete-users';

	/**
	 * Check whether the meta box in posts page is hidden or not.
	 *
	 * @static
	 * @access public
	 *
	 * @param string $box The name of the box
	 *
	 * @return bool True if the box is hidden, False otherwise
	 */
	public static function is_posts_box_hidden( $box ) {
		$hidden_boxes = self::get_posts_hidden_boxes();

		return is_array( $hidden_boxes ) && in_array( $box, $hidden_boxes );
	}

	/**
	 * Get the list of hidden boxes in posts page.
	 *
	 * @static
	 * @access public
	 *
	 * @return array The list of hidden meta boxes
	 */
	public static function get_posts_hidden_boxes() {
		$current_user = wp_get_current_user();

		return get_user_meta( $current_user->ID, self::VISIBLE_POST_BOXES, true );
	}

	/**
	 * Check whether the meta box in pages page is hidden or not.
	 *
	 * @since  5.0
	 * @static
	 * @access public
	 *
	 * @param string $box The name of the box to check
	 *
	 * @return bool True if the box is hidden, False otherwise
	 */
	public static function is_pages_box_hidden( $box ) {
		$hidden_boxes = self::get_pages_hidden_boxes();

		return is_array( $hidden_boxes ) && in_array( $box, $hidden_boxes );
	}

	/**
	 * Get the list of hidden boxes in posts page.
	 *
	 * @since  5.0
	 * @static
	 * @access public
	 *
	 * @return the array of hidden meta boxes
	 */
	public static function get_pages_hidden_boxes() {
		$current_user = wp_get_current_user();

		return get_user_meta( $current_user->ID, self::VISIBLE_PAGE_BOXES, true );
	}

	/**
	 * Check whether the meta box in users page is hidden or not.
	 *
	 * @static
	 * @access public
	 *
	 * @param string $box The name of the box to check
	 *
	 * @return bool True if the box is hidden, False otherwise
	 */
	public static function is_users_box_hidden( $box ) {
		$hidden_boxes = self::get_users_hidden_boxes();

		return is_array( $hidden_boxes ) && in_array( $box, $hidden_boxes );
	}

	/**
	 * Get the list of hidden boxes in users page.
	 *
	 * @static
	 * @access public
	 *
	 * @return array The array of hidden meta boxes
	 */
	public static function get_users_hidden_boxes() {
		$current_user = wp_get_current_user();

		return get_user_meta( $current_user->ID, self::VISIBLE_USER_BOXES, true );
	}

	/**
	 * Get the list of cron schedules.
	 *
	 * @static
	 * @access public
	 *
	 * @return array The list of cron schedules
	 */
	public static function get_cron_schedules() {
		$cron_items  = array();
		$cron        = _get_cron_array();
		$date_format = _x( 'M j, Y @ G:i', 'Cron table date format', 'bulk-delete' );
		$i           = 0;

		foreach ( $cron as $timestamp => $cronhooks ) {
			foreach ( (array) $cronhooks as $hook => $events ) {
				if ( 'do-bulk-delete-' == substr( $hook, 0, 15 ) ) {
					$cron_item = array();

					foreach ( (array) $events as $key => $event ) {
						$cron_item['timestamp'] = $timestamp;
						$cron_item['due']       = date_i18n( $date_format, $timestamp + ( get_option( 'gmt_offset' ) * 60 * 60 ) );
						$cron_item['schedule']  = $event['schedule'];
						$cron_item['type']      = $hook;
						$cron_item['args']      = $event['args'];
						$cron_item['id']        = $i;
					}

					$cron_items[ $i ] = $cron_item;
					$i++;
				}
			}
		}

		return $cron_items;
	}

	/**
	 * Generate display name from post type and status.
	 *
	 * @static
	 *
	 * @param string $str
	 *
	 * @return string Label
	 */
	public static function display_post_type_status( $str ) {
		$type_status = self::split_post_type_status( $str );

		$status = $type_status['status'];
		$type   = $type_status['type'];
		$label  = '';

		switch ( $status ) {
			case 'private':
				$label = $type . ' - Private Posts';
				break;
			case 'future':
				$label = $type . ' - Scheduled Posts';
				break;
			case 'draft':
				$label = $type . ' - Draft Posts';
				break;
			case 'pending':
				$label = $type . ' - Pending Posts';
				break;
			case 'publish':
				$label = $type . ' - Published Posts';
				break;
		}

		return $label;
	}

	/**
	 * Split post type and status.
	 *
	 * @static
	 * @access public
	 *
	 * @param string $str
	 *
	 * @return array
	 */
	public static function split_post_type_status( $str ) {
		$type_status = array();

		$str_arr = explode( '-', $str );

		if ( count( $str_arr ) > 1 ) {
			$type_status['status'] = end( $str_arr );
			$type_status['type']   = implode( '-', array_slice( $str_arr, 0, -1 ) );
		} else {
			$type_status['status'] = 'publish';
			$type_status['type']   = $str;
		}

		return $type_status;
	}
}

/**
 * Get a value from an array based on key.
 *
 * If key is present returns the value, else returns the default value.
 *
 * @since 5.6.0 added `bd` prefix.
 *
 * @param array  $array   Array from which value has to be retrieved.
 * @param string $key     Key, whose value to be retrieved.
 * @param string $default Optional. Default value to be returned, if the key is not found.
 *
 * @return mixed Value if key is present, else the default value.
 */
function bd_array_get( $array, $key, $default = null ) {
	return isset( $array[ $key ] ) ? $array[ $key ] : $default;
}

/**
 * Get a value from an array based on key and convert it into bool.
 *
 * @since 5.6.0 added `bd` prefix.
 *
 * @param array  $array   Array from which value has to be retrieved.
 * @param string $key     Key, whose value to be retrieved.
 * @param bool   $default (Optional) Default value to be returned, if the key is not found.
 *
 * @return bool Boolean converted Value if key is present, else the default value.
 */
function bd_array_get_bool( $array, $key, $default = false ) {
	return bd_to_bool( bd_array_get( $array, $key, $default ) );
}

/**
 * Convert a string value into boolean, based on whether the value "True" or "False" is present.
 *
 * @since 5.5
 *
 * @param string $string String value to compare.
 *
 * @return bool True if string is "True", False otherwise.
 */
function bd_to_bool( $string ) {
	return filter_var( $string, FILTER_VALIDATE_BOOLEAN );
}

/**
 * Get the formatted list of allowed mime types.
 * This function was originally defined in the Bulk Delete Attachment addon.
 *
 * @since 5.5
 *
 * @return array List of allowed mime types after formatting
 */
function bd_get_allowed_mime_types() {
	$mime_types = get_allowed_mime_types();
	sort( $mime_types );

	$processed_mime_types        = array();
	$processed_mime_types['all'] = __( 'All mime types', 'bulk-delete' );

	$last_value = '';
	foreach ( $mime_types as $key => $value ) {
		$splitted = explode( '/', $value, 2 );
		$prefix   = $splitted[0];

		if ( '' == $last_value || $prefix != $last_value ) {
			$processed_mime_types[ $prefix ] = __( 'All', 'bulk-delete' ) . ' ' . $prefix;
			$last_value                      = $prefix;
		}

		$processed_mime_types[ $value ] = $value;
	}

	return $processed_mime_types;
}

/**
 * Get current theme name.
 *
 * @since 5.5.4
 *
 * @return string Current theme name.
 */
function bd_get_current_theme_name() {
	if ( get_bloginfo( 'version' ) < '3.4' ) {
		$theme_data = get_theme_data( get_stylesheet_directory() . '/style.css' );

		return $theme_data['Name'] . ' ' . $theme_data['Version'];
	} else {
		$theme_data = wp_get_theme();

		return $theme_data->Name . ' ' . $theme_data->Version;
	}
}

/**
 * Try to identity the hosting provider.
 *
 * @since 5.5.4
 *
 * @return string Web host name if identified, empty string otherwise.
 */
function bd_identify_host() {
	$host = '';
	if ( defined( 'WPE_APIKEY' ) ) {
		$host = 'WP Engine';
	} elseif ( defined( 'PAGELYBIN' ) ) {
		$host = 'Pagely';
	}

	return $host;
}

/**
 * Print plugins that are currently active.
 *
 * @since 5.5.4
 */
function bd_print_current_plugins() {
	$plugins        = get_plugins();
	$active_plugins = get_option( 'active_plugins', array() );

	foreach ( $plugins as $plugin_path => $plugin ) {
		// If the plugin isn't active, don't show it.
		if ( ! in_array( $plugin_path, $active_plugins ) ) {
			continue;
		}

		echo $plugin['Name'] . ': ' . $plugin['Version'] . "\n";
	}
}

/**
 * Print network active plugins.
 *
 * @since 5.5.4
 */
function bd_print_network_active_plugins() {
	$plugins        = wp_get_active_network_plugins();
	$active_plugins = get_site_option( 'active_sitewide_plugins', array() );

	foreach ( $plugins as $plugin_path ) {
		$plugin_base = plugin_basename( $plugin_path );

		// If the plugin isn't active, don't show it.
		if ( ! array_key_exists( $plugin_base, $active_plugins ) ) {
			continue;
		}

		$plugin = get_plugin_data( $plugin_path );

		echo $plugin['Name'] . ' :' . $plugin['Version'] . "\n";
	}
}