<?php
/**
 * Admin Reports
 *
 * Functions used for displaying sales and customer reports in admin.
 *
 * @author 		WooThemes
 * @category 	Admin
 * @package 	WooCommerce/Admin/Reports
 * @version     2.0.0
 */

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

/**
 * WC_Admin_Reports Class
 */
class WC_Admin_Reports {

	private $start_date;
	private $end_date;

	/**
	 * Constructor
	 */
	public function __construct() {
		add_filter( 'admin_menu', array( $this, 'add_menu_item' ), 20 );
		add_filter( 'woocommerce_screen_ids', array( $this, 'add_screen_id' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'scripts_and_styles' ) );
	}

	/**
	 * Add menu item
	 */
	public function add_menu_item() {
		add_submenu_page( 'woocommerce', __( 'Reports', 'woocommerce' ),  __( 'Reports', 'woocommerce' ) , 'view_woocommerce_reports', 'wc_reports', array( $this, 'admin_page' ) );
	}

	/**
	 * Add screen ID
	 * @param array $ids
	 */
	public function add_screen_id( $ids ) {
		$wc_screen_id = strtolower( __( 'WooCommerce', 'woocommerce' ) );
		$ids[]        = $wc_screen_id . '_page_wc_reports';
		return $ids;
	}

	/**
	 * Script and styles
	 */
	public function scripts_and_styles() {
		$screen       = get_current_screen();
		$wc_screen_id = strtolower( __( 'WooCommerce', 'woocommerce' ) );
		$suffix       = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';

		if ( in_array( $screen->id, apply_filters( 'woocommerce_reports_screen_ids', array( $wc_screen_id . '_page_wc_reports' ) ) ) ) {
			wp_enqueue_script( 'wc-reports', WC()->plugin_url() . '/assets/js/admin/reports' . $suffix . '.js', array( 'jquery', 'jquery-ui-datepicker' ), '1.0' );
			wp_enqueue_script( 'flot', WC()->plugin_url() . '/assets/js/admin/jquery.flot' . $suffix . '.js', array( 'jquery' ), '1.0' );
			wp_enqueue_script( 'flot-resize', WC()->plugin_url() . '/assets/js/admin/jquery.flot.resize' . $suffix . '.js', array('jquery', 'flot'), '1.0' );
			wp_enqueue_script( 'flot-time', WC()->plugin_url() . '/assets/js/admin/jquery.flot.time' . $suffix . '.js', array( 'jquery', 'flot' ), '1.0' );
			wp_enqueue_script( 'flot-pie', WC()->plugin_url() . '/assets/js/admin/jquery.flot.pie' . $suffix . '.js', array( 'jquery', 'flot' ), '1.0' );
		}
	}

	/**
	 * Returns the definitions for the reports to show in admin.
	 *
	 * @return array
	 */
	public function get_reports() {
		$reports = array(
			'orders'     => array(
				'title'  => __( 'Orders', 'woocommerce' ),
				'reports' => array(
					"sales_by_date"    => array(
						'title'       => __( 'Sales by date', 'woocommerce' ),
						'description' => '',
						'hide_title'  => true,
						'callback'    => array( $this, 'get_report' )
					),
					"sales_by_product"     => array(
						'title'       => __( 'Sales by product', 'woocommerce' ),
						'description' => '',
						'hide_title'  => true,
						'callback'    => array( $this, 'get_report' )
					),
					"sales_by_category" => array(
						'title'       => __( 'Sales by category', 'woocommerce' ),
						'description' => '',
						'hide_title'  => true,
						'callback'    => array( $this, 'get_report' )
					),
					"coupon_usage" => array(
						'title'       => __( 'Coupons by date', 'woocommerce' ),
						'description' => '',
						'hide_title'  => true,
						'callback'    => array( $this, 'get_report' )
					)
				)
			),
			'customers' => array(
				'title'  => __( 'Customers', 'woocommerce' ),
				'reports' => array(
					"overview" => array(
						'title'       => __( 'Overview', 'woocommerce' ),
						'description' => '',
						'hide_title'  => true,
						'callback'    => 'woocommerce_customer_overview'
					),
				)
			),
			'stock'     => array(
				'title'  => __( 'Stock', 'woocommerce' ),
				'reports' => array(
					"overview" => array(
						'title'       => __( 'Overview', 'woocommerce' ),
						'description' => '',
						'hide_title'  => true,
						'callback'    => 'woocommerce_stock_overview'
					),
				)
			)
		);

		if ( get_option( 'woocommerce_calc_taxes' ) == 'yes' ) {
			$reports['taxes'] = array(
				'title'  => __( 'Tax', 'woocommerce' ),
				'reports' => array(
					"taxes_by_month" => array(
						'title'       => __( 'Taxes by month', 'woocommerce' ),
						'description' => '',
						'callback'    => 'woocommerce_monthly_taxes'
					)
				)
			);
		}

		$reports = apply_filters( 'woocommerce_admin_reports', $reports );

		// Backwards compat
		$reports = apply_filters( 'woocommerce_reports_charts', $reports );

		foreach ( $reports as $key => $report_group ) {
			if ( isset( $reports[ $key ]['charts'] ) )
				$reports[ $key ]['reports'] = $reports[ $key ]['charts'];

			foreach ( $reports[ $key ]['reports'] as $report_key => $report ) {
				if ( isset( $reports[ $key ]['reports'][ $report_key ]['function'] ) )
					$reports[ $key ]['reports'][ $report_key ]['callback'] = $reports[ $key ]['reports'][ $report_key ]['function'];
			}
		}

		return $reports;
	}

	/**
	 * Handles output of the reports page in admin.
	 */
	public function admin_page() {
		$reports        = $this->get_reports();
		$first_tab      = array_keys( $reports );
		$current_tab    = ! empty( $_GET['tab'] ) ? sanitize_title( urldecode( $_GET['tab'] ) ) : $first_tab[0];
		$current_report = isset( $_GET['report'] ) ? sanitize_title( urldecode( $_GET['report'] ) ) : current( array_keys( $reports[ $current_tab ]['reports'] ) );

		include_once( 'reports/class-wc-admin-report.php' );
		include_once( 'views/html-admin-page-reports.php' );
	}

	/**
	 * Get a report from our reports subfolder
	 */
	public function get_report( $name ) {
		$name  = sanitize_title( str_replace( '_', '-', $name ) );
		$class = 'WC_Report_' . str_replace( '-', '_', $name );

		include_once( 'reports/class-wc-report-' . $name . '.php' );

		if ( ! class_exists( $class ) )
			return;

		$report = new $class();
		$report->output_report();
	}
}

new WC_Admin_Reports();


/*


/*
$customer_orders = $this->get_order_report_data( array(
			'data' => array(
				'_order_total' => array(
					'type'     => 'meta',
					'function' => 'SUM',
					'name'     => 'total_sales'
				),
				'ID' => array(
					'type'     => 'post_data',
					'function' => 'COUNT',
					'name'     => 'total_orders'
				),
			),
			'where_meta' => array(
				array(
					'meta_key'   => '_customer_user',
					'meta_value' => '0',
					'operator'   => '>'
				)
			)
		) );

		$guest_orders = $this->get_order_report_data( array(
			'data' => array(
				'_order_total' => array(
					'type'     => 'meta',
					'function' => 'SUM',
					'name'     => 'total_sales'
				),
				'ID' => array(
					'type'     => 'post_data',
					'function' => 'COUNT',
					'name'     => 'total_orders'
				),
			),
			'where_meta' => array(
				array(
					'meta_key'   => '_customer_user',
					'meta_value' => '0',
					'operator'   => '='
				)
			)
		) );

// Get order ids and dates in range
		$orders = apply_filters('woocommerce_reports_sales_overview_orders', $wpdb->get_results( "
			SELECT posts.ID, posts.post_date, COUNT( order_items.order_item_id ) as order_item_count FROM {$wpdb->posts} AS posts

			LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID = rel.object_ID
			LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
			LEFT JOIN {$wpdb->terms} AS term USING( term_id )
			LEFT JOIN {$wpdb->prefix}woocommerce_order_items as order_items ON posts.ID = order_items.order_id

			WHERE 	posts.post_type 	= 'shop_order'
			AND 	posts.post_status 	= 'publish'
			AND 	tax.taxonomy		= 'shop_order_status'
			AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
			AND 	post_date > '" . date('Y-m-d', $this->start_date ) . "'
			AND 	post_date < '" . date('Y-m-d', $this->end_date ) . "'
			GROUP BY posts.ID
			ORDER BY post_date ASC
		" ) );

		if ( $orders ) {
			foreach ( $orders as $order ) {

				$order_total = get_post_meta( $order->ID, '_order_total', true );
				$time = strtotime( date( 'Y-m-d', strtotime( $order->post_date ) ) ) . '000';

				if ( isset( $order_counts[ $time ] ) )
					$order_counts[ $time ]++;
				else
					$order_counts[ $time ] = 1;

				if ( isset( $order_item_counts[ $time ] ) )
					$order_item_counts[ $time ] += $order->order_item_count;
				else
					$order_item_counts[ $time ] = $order->order_item_count;

				if ( isset( $order_amounts[ $time ] ) )
					$order_amounts[ $time ] = $order_amounts[ $time ] + $order_total;
				else
					$order_amounts[ $time ] = floatval( $order_total );
			}
		}

		$order_counts_array = $order_amounts_array = $order_item_counts_array = array();

		foreach ( $order_counts as $key => $count )
			$order_counts_array[] = array( esc_js( $key ), esc_js( $count ) );

		foreach ( $order_item_counts as $key => $count )
			$order_item_counts_array[] = array( esc_js( $key ), esc_js( $count ) );

		foreach ( $order_amounts as $key => $amount )
			$order_amounts_array[] = array( esc_js( $key ), esc_js( $amount ) );

		$chart_data = json_encode( array( 'order_counts' => $order_counts_array, 'order_item_counts' => $order_item_counts_array, 'order_amounts' => $order_amounts_array, 'guest_total_orders' => $guest_orders->total_orders, 'customer_total_orders' => $customer_orders->total_orders ) );

 jQuery.plot(
					jQuery('.chart-placeholder.customers_vs_guests'),
					[
						{
							label: "Customer",
							data: order_data.customer_total_orders,
							color: '#3498db',
						},
						{
							label: "Guest",
							data: order_data.guest_total_orders,
							color: '#2ecc71',
						}
					],
					{
						series: {
					        pie: {
					            show: true,
					            radius: 1,
					            innerRadius: 0.6,
					            label: {
					                show: true
					            }
					        }
					    },
					    legend: {
					        show: false
					    }
			 		}
			 	);
			 	*/


/**
 * Output the customer overview stats.
 *
 * @access public
 * @return void
 */
function woocommerce_customer_overview() {

	global $start_date, $end_date, $woocommerce, $wpdb, $wp_locale;

	$total_customers = 0;
	$total_customer_sales = 0;
	$total_guest_sales = 0;
	$total_customer_orders = 0;
	$total_guest_orders = 0;

	$users_query = new WP_User_Query( array(
		'fields' => array('user_registered'),
		'role' => 'customer'
		) );
	$customers = $users_query->get_results();
	$total_customers = (int) sizeof($customers);

	$customer_orders = apply_filters( 'woocommerce_reports_customer_overview_customer_orders', $wpdb->get_row( "
		SELECT SUM(meta.meta_value) AS total_sales, COUNT(posts.ID) AS total_orders FROM {$wpdb->posts} AS posts

		LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
		LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID=rel.object_ID
		LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
		LEFT JOIN {$wpdb->terms} AS term USING( term_id )

		WHERE 	meta.meta_key 		= '_order_total'
		AND 	posts.post_type 	= 'shop_order'
		AND 	posts.post_status 	= 'publish'
		AND 	tax.taxonomy		= 'shop_order_status'
		AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
		AND		posts.ID			IN (
			SELECT post_id FROM {$wpdb->postmeta}
			WHERE 	meta_key 		= '_customer_user'
			AND		meta_value		> 0
		)
	" ) );

	$total_customer_sales	= $customer_orders->total_sales;
	$total_customer_orders	= absint( $customer_orders->total_orders );

	$guest_orders = apply_filters( 'woocommerce_reports_customer_overview_guest_orders', $wpdb->get_row( "
		SELECT SUM(meta.meta_value) AS total_sales, COUNT(posts.ID) AS total_orders FROM {$wpdb->posts} AS posts

		LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
		LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID=rel.object_ID
		LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
		LEFT JOIN {$wpdb->terms} AS term USING( term_id )

		WHERE 	meta.meta_key 		= '_order_total'
		AND 	posts.post_type 	= 'shop_order'
		AND 	posts.post_status 	= 'publish'
		AND 	tax.taxonomy		= 'shop_order_status'
		AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
		AND		posts.ID			IN (
			SELECT post_id FROM {$wpdb->postmeta}
			WHERE 	meta_key 		= '_customer_user'
			AND		meta_value		= 0
		)
	" ) );

	$total_guest_sales	= $guest_orders->total_sales;
	$total_guest_orders	= absint( $guest_orders->total_orders );
	?>
	<div id="poststuff" class="woocommerce-reports-wrap">
		<div class="woocommerce-reports-sidebar">
			<div class="postbox">
				<h3><span><?php _e( 'Total customers', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php if ($total_customers>0) echo $total_customers; else _e( 'n/a', 'woocommerce' ); ?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Total customer sales', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php if ($total_customer_sales>0) echo woocommerce_price($total_customer_sales); else _e( 'n/a', 'woocommerce' ); ?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Total guest sales', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php if ($total_guest_sales>0) echo woocommerce_price($total_guest_sales); else _e( 'n/a', 'woocommerce' ); ?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Total customer orders', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php if ($total_customer_orders>0) echo $total_customer_orders; else _e( 'n/a', 'woocommerce' ); ?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Total guest orders', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php if ($total_guest_orders>0) echo $total_guest_orders; else _e( 'n/a', 'woocommerce' ); ?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Average orders per customer', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php if ($total_customer_orders>0 && $total_customers>0) echo number_format($total_customer_orders/$total_customers, 2); else _e( 'n/a', 'woocommerce' ); ?></p>
				</div>
			</div>
		</div>
		<div class="woocommerce-reports-main">
			<div class="postbox">
				<h3><span><?php _e( 'Signups per day', 'woocommerce' ); ?></span></h3>
				<div class="inside chart">
					<div id="placeholder" style="width:100%; overflow:hidden; height:568px; position:relative;"></div>
					<div id="chart-legend"></div>
				</div>
			</div>
		</div>
	</div>
	<?php

	$start_date = strtotime('-30 days', current_time('timestamp'));
	$end_date = current_time('timestamp');
	$signups = array();

	// Blank date ranges to begin
	$count = 0;
	$days = ($end_date - $start_date) / (60 * 60 * 24);
	if ($days==0) $days = 1;

	while ($count < $days) :
		$time = strtotime(date('Ymd', strtotime('+ '.$count.' DAY', $start_date))).'000';

		$signups[ $time ] = 0;

		$count++;
	endwhile;

	foreach ($customers as $customer) :
		if (strtotime($customer->user_registered) > $start_date) :
			$time = strtotime(date('Ymd', strtotime($customer->user_registered))).'000';

			if (isset($signups[ $time ])) :
				$signups[ $time ]++;
			else :
				$signups[ $time ] = 1;
			endif;
		endif;
	endforeach;

	$signups_array = array();
	foreach ($signups as $key => $count) :
		$signups_array[] = array( esc_js( $key ), esc_js( $count ) );
	endforeach;

	$chart_data = json_encode($signups_array);
	?>
	<script type="text/javascript">
		jQuery(function(){
			var d = jQuery.parseJSON( '<?php echo $chart_data; ?>' );

			for (var i = 0; i < d.length; ++i) d[i][0] += 60 * 60 * 1000;

			var placeholder = jQuery("#placeholder");

			var plot = jQuery.plot(placeholder, [ { data: d } ], {
				legend: {
					container: jQuery('#chart-legend'),
					noColumns: 2
				},
				series: {
					bars: {
						barWidth: 60 * 60 * 24 * 1000,
						align: "center",
						show: true
					}
				},
				grid: {
					show: true,
					aboveData: false,
					color: '#aaa',
					backgroundColor: '#fff',
					borderWidth: 2,
					borderColor: '#aaa',
					clickable: false,
					hoverable: true,
					markings: weekendAreas
				},
				xaxis: {
					mode: "time",
					timeformat: "%d %b",
					monthNames: <?php echo json_encode( array_values( $wp_locale->month_abbrev ) ) ?>,
					tickLength: 1,
					minTickSize: [1, "day"]
				},
				yaxes: [ { position: "right", min: 0, tickSize: 1, tickDecimals: 0 } ],
		   		colors: ["#8a4b75"]
		 	});

		 	placeholder.resize();

			<?php woocommerce_weekend_area_js(); ?>
		});
	</script>
	<?php
}


/**
 * Output the stock overview stats.
 *
 * @access public
 * @return void
 */
function woocommerce_stock_overview() {

	global $start_date, $end_date, $woocommerce, $wpdb;

	// Low/No stock lists
	$lowstockamount = get_option('woocommerce_notify_low_stock_amount');
	if (!is_numeric($lowstockamount)) $lowstockamount = 1;

	$nostockamount = get_option('woocommerce_notify_no_stock_amount');
	if (!is_numeric($nostockamount)) $nostockamount = 0;

	// Get low in stock simple/downloadable/virtual products. Grouped don't have stock. Variations need a separate query.
	$args = array(
		'post_type'			=> 'product',
		'post_status' 		=> 'publish',
		'posts_per_page' 	=> -1,
		'meta_query' => array(
			array(
				'key' 		=> '_manage_stock',
				'value' 	=> 'yes'
			),
			array(
				'key' 		=> '_stock',
				'value' 	=> $lowstockamount,
				'compare' 	=> '<=',
				'type' 		=> 'NUMERIC'
			)
		),
		'tax_query' => array(
			array(
				'taxonomy' 	=> 'product_type',
				'field' 	=> 'name',
				'terms' 	=> array('simple'),
				'operator' 	=> 'IN'
			)
		),
		'fields' => 'id=>parent'
	);

	$low_stock_products = (array) get_posts($args);

	// Get low stock product variations
	$args = array(
		'post_type'			=> 'product_variation',
		'post_status' 		=> 'publish',
		'posts_per_page' 	=> -1,
		'meta_query' => array(
			array(
				'key' 		=> '_stock',
				'value' 	=> $lowstockamount,
				'compare' 	=> '<=',
				'type' 		=> 'NUMERIC'
			),
			array(
				'key' 		=> '_stock',
				'value' 	=> array( '', false, null ),
				'compare' 	=> 'NOT IN'
			)
		),
		'fields' => 'id=>parent'
	);

	$low_stock_variations = (array) get_posts($args);

	// Get low stock variable products (where stock is set for the parent)
	$args = array(
		'post_type'			=> array('product'),
		'post_status' 		=> 'publish',
		'posts_per_page' 	=> -1,
		'meta_query' => array(
			'relation' => 'AND',
			array(
				'key' 		=> '_manage_stock',
				'value' 	=> 'yes'
			),
			array(
				'key' 		=> '_stock',
				'value' 	=> $lowstockamount,
				'compare' 	=> '<=',
				'type' 		=> 'NUMERIC'
			)
		),
		'tax_query' => array(
			array(
				'taxonomy' 	=> 'product_type',
				'field' 	=> 'name',
				'terms' 	=> array('variable'),
				'operator' 	=> 'IN'
			)
		),
		'fields' => 'id=>parent'
	);

	$low_stock_variable_products = (array) get_posts($args);

	// Get products marked out of stock
	$args = array(
		'post_type'			=> array( 'product' ),
		'post_status' 		=> 'publish',
		'posts_per_page' 	=> -1,
		'meta_query' => array(
			'relation' => 'AND',
			array(
				'key' 		=> '_stock_status',
				'value' 	=> 'outofstock'
			)
		),
		'fields' => 'id=>parent'
	);

	$out_of_stock_status_products = (array) get_posts($args);

	// Merge results
	$low_in_stock = apply_filters( 'woocommerce_reports_stock_overview_products', $low_stock_products + $low_stock_variations + $low_stock_variable_products + $out_of_stock_status_products );
	?>
	<div id="poststuff" class="woocommerce-reports-wrap halved">
		<div class="woocommerce-reports-left">
			<div class="postbox">
				<h3><span><?php _e( 'Low stock', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<?php
					if ( $low_in_stock ) {
						echo '<ul class="stock_list">';
						foreach ( $low_in_stock as $product_id => $parent ) {

							$stock 	= (int) get_post_meta( $product_id, '_stock', true );
							$sku	= get_post_meta( $product_id, '_sku', true );

							if ( $stock <= $nostockamount || in_array( $product_id, array_keys( $out_of_stock_status_products ) ) )
								continue;

							$title = esc_html__( get_the_title( $product_id ) );

							if ( $sku )
								$title .= ' (' . __( 'SKU', 'woocommerce' ) . ': ' . esc_html( $sku ) . ')';

							if ( get_post_type( $product_id ) == 'product' )
								$product_url = admin_url( 'post.php?post=' . $product_id . '&action=edit' );
							else
								$product_url = admin_url( 'post.php?post=' . $parent . '&action=edit' );

							printf( '<li><a href="%s"><small>' .  _n('%d in stock', '%d in stock', $stock, 'woocommerce') . '</small> %s</a></li>', $product_url, $stock, $title );

						}
						echo '</ul>';
					} else {
						echo '<p>'.__( 'No products are low in stock.', 'woocommerce' ).'</p>';
					}
					?>
				</div>
			</div>
		</div>
		<div class="woocommerce-reports-right">
			<div class="postbox">
				<h3><span><?php _e( 'Out of stock', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<?php
					if ( $low_in_stock ) {
						echo '<ul class="stock_list">';
						foreach ( $low_in_stock as $product_id => $parent ) {

							$stock 	= get_post_meta( $product_id, '_stock', true );
							$sku	= get_post_meta( $product_id, '_sku', true );

							if ( $stock > $nostockamount && ! in_array( $product_id, array_keys( $out_of_stock_status_products ) ) )
								continue;

							$title = esc_html__( get_the_title( $product_id ) );

							if ( $sku )
								$title .= ' (' . __( 'SKU', 'woocommerce' ) . ': ' . esc_html( $sku ) . ')';

							if ( get_post_type( $product_id ) == 'product' )
								$product_url = admin_url( 'post.php?post=' . $product_id . '&action=edit' );
							else
								$product_url = admin_url( 'post.php?post=' . $parent . '&action=edit' );

							if ( $stock == '' )
								printf( '<li><a href="%s"><small>' .  __('Marked out of stock', 'woocommerce') . '</small> %s</a></li>', $product_url, $title );
							else
								printf( '<li><a href="%s"><small>' .  _n('%d in stock', '%d in stock', $stock, 'woocommerce') . '</small> %s</a></li>', $product_url, $stock, $title );

						}
						echo '</ul>';
					} else {
						echo '<p>'.__( 'No products are out in stock.', 'woocommerce' ).'</p>';
					}
					?>
				</div>
			</div>
		</div>
	</div>
	<?php
}


/**
 * Output the monthly tax stats.
 *
 * @access public
 * @return void
 */
function woocommerce_monthly_taxes() {
	global $start_date, $end_date, $woocommerce, $wpdb;

	$first_year = $wpdb->get_var( "SELECT post_date FROM $wpdb->posts WHERE post_date != 0 ORDER BY post_date ASC LIMIT 1;" );

	if ( $first_year )
		$first_year = date( 'Y', strtotime( $first_year ) );
	else
		$first_year = date( 'Y' );

	$current_year 	= isset( $_POST['show_year'] ) 	? $_POST['show_year'] 	: date( 'Y', current_time( 'timestamp' ) );
	$start_date 	= strtotime( $current_year . '0101' );

	$total_tax = $total_sales_tax = $total_shipping_tax = $count = 0;
	$taxes = $tax_rows = $tax_row_labels = array();

	for ( $count = 0; $count < 12; $count++ ) {

		$time = strtotime( date('Ym', strtotime( '+ ' . $count . ' MONTH', $start_date ) ) . '01' );

		if ( $time > current_time( 'timestamp' ) )
			continue;

		$month = date( 'Ym', strtotime( date( 'Ym', strtotime( '+ ' . $count . ' MONTH', $start_date ) ) . '01' ) );

		$gross = $wpdb->get_var( $wpdb->prepare( "
			SELECT SUM( meta.meta_value ) AS order_tax
			FROM {$wpdb->posts} AS posts
			LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
			LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID=rel.object_ID
			LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
			LEFT JOIN {$wpdb->terms} AS term USING( term_id )
			WHERE 	meta.meta_key 		= '_order_total'
			AND 	posts.post_type 	= 'shop_order'
			AND 	posts.post_status 	= 'publish'
			AND 	tax.taxonomy		= 'shop_order_status'
			AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
			AND		%s					= date_format(posts.post_date,'%%Y%%m')
		", $month ) );

		$shipping = $wpdb->get_var( $wpdb->prepare( "
			SELECT SUM( meta.meta_value ) AS order_tax
			FROM {$wpdb->posts} AS posts
			LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
			LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID=rel.object_ID
			LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
			LEFT JOIN {$wpdb->terms} AS term USING( term_id )
			WHERE 	meta.meta_key 		= '_order_shipping'
			AND 	posts.post_type 	= 'shop_order'
			AND 	posts.post_status 	= 'publish'
			AND 	tax.taxonomy		= 'shop_order_status'
			AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
			AND		%s		 			= date_format(posts.post_date,'%%Y%%m')
		", $month ) );

		$order_tax = $wpdb->get_var( $wpdb->prepare( "
			SELECT SUM( meta.meta_value ) AS order_tax
			FROM {$wpdb->posts} AS posts
			LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
			LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID=rel.object_ID
			LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
			LEFT JOIN {$wpdb->terms} AS term USING( term_id )
			WHERE 	meta.meta_key 		= '_order_tax'
			AND 	posts.post_type 	= 'shop_order'
			AND 	posts.post_status 	= 'publish'
			AND 	tax.taxonomy		= 'shop_order_status'
			AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
			AND		%s		 			= date_format(posts.post_date,'%%Y%%m')
		", $month ) );

		$shipping_tax = $wpdb->get_var( $wpdb->prepare( "
			SELECT SUM( meta.meta_value ) AS order_tax
			FROM {$wpdb->posts} AS posts
			LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
			LEFT JOIN {$wpdb->term_relationships} AS rel ON posts.ID=rel.object_ID
			LEFT JOIN {$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
			LEFT JOIN {$wpdb->terms} AS term USING( term_id )
			WHERE 	meta.meta_key 		= '_order_shipping_tax'
			AND 	posts.post_type 	= 'shop_order'
			AND 	posts.post_status 	= 'publish'
			AND 	tax.taxonomy		= 'shop_order_status'
			AND		term.slug			IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
			AND		%s		 			= date_format(posts.post_date,'%%Y%%m')
		", $month ) );

		$tax_rows = $wpdb->get_results( $wpdb->prepare( "
			SELECT
				order_items.order_item_name as name,
				SUM( order_item_meta.meta_value ) as tax_amount,
				SUM( order_item_meta_2.meta_value ) as shipping_tax_amount,
				SUM( order_item_meta.meta_value + order_item_meta_2.meta_value ) as total_tax_amount

			FROM 		{$wpdb->prefix}woocommerce_order_items as order_items

			LEFT JOIN 	{$wpdb->prefix}woocommerce_order_itemmeta as order_item_meta ON order_items.order_item_id = order_item_meta.order_item_id
			LEFT JOIN 	{$wpdb->prefix}woocommerce_order_itemmeta as order_item_meta_2 ON order_items.order_item_id = order_item_meta_2.order_item_id

			LEFT JOIN 	{$wpdb->posts} AS posts ON order_items.order_id = posts.ID
			LEFT JOIN 	{$wpdb->term_relationships} AS rel ON posts.ID = rel.object_ID
			LEFT JOIN 	{$wpdb->term_taxonomy} AS tax USING( term_taxonomy_id )
			LEFT JOIN 	{$wpdb->terms} AS term USING( term_id )

			WHERE 		order_items.order_item_type = 'tax'
			AND 		posts.post_type 	= 'shop_order'
			AND 		posts.post_status 	= 'publish'
			AND 		tax.taxonomy		= 'shop_order_status'
			AND			term.slug IN ('" . implode( "','", apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) ) ) . "')
			AND			%s = date_format( posts.post_date,'%%Y%%m' )
			AND 		order_item_meta.meta_key = 'tax_amount'
			AND 		order_item_meta_2.meta_key = 'shipping_tax_amount'

			GROUP BY 	order_items.order_item_name
		", $month ) );

		if ( $tax_rows ) {
			foreach ( $tax_rows as $tax_row ) {
				if ( $tax_row->total_tax_amount > 0 )
					$tax_row_labels[] = $tax_row->name;
			}
		}

		$taxes[ date( 'M', strtotime( $month . '01' ) ) ] = array(
			'gross'			=> $gross,
			'shipping'		=> $shipping,
			'order_tax' 	=> $order_tax,
			'shipping_tax' 	=> $shipping_tax,
			'total_tax' 	=> $shipping_tax + $order_tax,
			'tax_rows'		=> $tax_rows
		);

		$total_sales_tax += $order_tax;
		$total_shipping_tax += $shipping_tax;
	}
	$total_tax = $total_sales_tax + $total_shipping_tax;
	?>
	<form method="post" action="">
		<p><label for="show_year"><?php _e( 'Year:', 'woocommerce' ); ?></label>
		<select name="show_year" id="show_year">
			<?php
				for ( $i = $first_year; $i <= date('Y'); $i++ )
					printf( '<option value="%s" %s>%s</option>', $i, selected( $current_year, $i, false ), $i );
			?>
		</select> <input type="submit" class="button" value="<?php _e( 'Show', 'woocommerce' ); ?>" /></p>
	</form>
	<div id="poststuff" class="woocommerce-reports-wrap">
		<div class="woocommerce-reports-sidebar">
			<div class="postbox">
				<h3><span><?php _e( 'Total taxes for year', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php
						if ( $total_tax > 0 )
							echo woocommerce_price( $total_tax );
						else
							_e( 'n/a', 'woocommerce' );
					?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Total product taxes for year', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php
						if ( $total_sales_tax > 0 )
							echo woocommerce_price( $total_sales_tax );
						else
							_e( 'n/a', 'woocommerce' );
					?></p>
				</div>
			</div>
			<div class="postbox">
				<h3><span><?php _e( 'Total shipping tax for year', 'woocommerce' ); ?></span></h3>
				<div class="inside">
					<p class="stat"><?php
						if ( $total_shipping_tax > 0 )
							echo woocommerce_price( $total_shipping_tax );
						else
							_e( 'n/a', 'woocommerce' );
					?></p>
				</div>
			</div>
		</div>
		<div class="woocommerce-reports-main">
			<table class="widefat">
				<thead>
					<tr>
						<th><?php _e( 'Month', 'woocommerce' ); ?></th>
						<th class="total_row"><?php _e( 'Total Sales', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e("This is the sum of the 'Order Total' field within your orders.", 'woocommerce'); ?>" href="#">[?]</a></th>
						<th class="total_row"><?php _e( 'Total Shipping', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e("This is the sum of the 'Shipping Total' field within your orders.", 'woocommerce'); ?>" href="#">[?]</a></th>
						<th class="total_row"><?php _e( 'Total Product Taxes', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e("This is the sum of the 'Cart Tax' field within your orders.", 'woocommerce'); ?>" href="#">[?]</a></th>
						<th class="total_row"><?php _e( 'Total Shipping Taxes', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e("This is the sum of the 'Shipping Tax' field within your orders.", 'woocommerce'); ?>" href="#">[?]</a></th>
						<th class="total_row"><?php _e( 'Total Taxes', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e("This is the sum of the 'Cart Tax' and 'Shipping Tax' fields within your orders.", 'woocommerce'); ?>" href="#">[?]</a></th>
						<th class="total_row"><?php _e( 'Net profit', 'woocommerce' ); ?> <a class="tips" data-tip="<?php _e("Total sales minus shipping and tax.", 'woocommerce'); ?>" href="#">[?]</a></th>
						<?php
							$tax_row_labels = array_filter( array_unique( $tax_row_labels ) );
							foreach ( $tax_row_labels as $label )
								echo '<th class="tax_row">' . $label . '</th>';
						?>
					</tr>
				</thead>
				<tfoot>
					<tr>
						<?php
							$total = array();

							foreach ( $taxes as $month => $tax ) {
								$total['gross'] = isset( $total['gross'] ) ? $total['gross'] + $tax['gross'] : $tax['gross'];
								$total['shipping'] = isset( $total['shipping'] ) ? $total['shipping'] + $tax['shipping'] : $tax['shipping'];
								$total['order_tax'] = isset( $total['order_tax'] ) ? $total['order_tax'] + $tax['order_tax'] : $tax['order_tax'];
								$total['shipping_tax'] = isset( $total['shipping_tax'] ) ? $total['shipping_tax'] + $tax['shipping_tax'] : $tax['shipping_tax'];
								$total['total_tax'] = isset( $total['total_tax'] ) ? $total['total_tax'] + $tax['total_tax'] : $tax['total_tax'];

								foreach ( $tax_row_labels as $label )
									foreach ( $tax['tax_rows'] as $tax_row )
										if ( $tax_row->name == $label ) {
											$total['tax_rows'][ $label ] = isset( $total['tax_rows'][ $label ] ) ? $total['tax_rows'][ $label ] + $tax_row->total_tax_amount : $tax_row->total_tax_amount;
										}

							}

							echo '
								<td>' . __( 'Total', 'woocommerce' ) . '</td>
								<td class="total_row">' . woocommerce_price( $total['gross'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $total['shipping'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $total['order_tax'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $total['shipping_tax'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $total['total_tax'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $total['gross'] - $total['shipping'] - $total['total_tax'] ) . '</td>';

							foreach ( $tax_row_labels as $label )
								if ( isset( $total['tax_rows'][ $label ] ) )
									echo '<td class="tax_row">' . woocommerce_price( $total['tax_rows'][ $label ] ) . '</td>';
								else
									echo '<td class="tax_row">' .  woocommerce_price( 0 ) . '</td>';
						?>
					</tr>
					<tr>
						<th colspan="<?php echo 7 + sizeof( $tax_row_labels ); ?>"><button class="button toggle_tax_rows"><?php _e( 'Toggle tax rows', 'woocommerce' ); ?></button></th>
					</tr>
				</tfoot>
				<tbody>
					<?php
						foreach ( $taxes as $month => $tax ) {
							$alt = ( isset( $alt ) && $alt == 'alt' ) ? '' : 'alt';
							echo '<tr class="' . $alt . '">
								<td>' . $month . '</td>
								<td class="total_row">' . woocommerce_price( $tax['gross'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $tax['shipping'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $tax['order_tax'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $tax['shipping_tax'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $tax['total_tax'] ) . '</td>
								<td class="total_row">' . woocommerce_price( $tax['gross'] - $tax['shipping'] - $tax['total_tax'] ) . '</td>';


							foreach ( $tax_row_labels as $label ) {

								$row_total = 0;

								foreach ( $tax['tax_rows'] as $tax_row ) {
									if ( $tax_row->name == $label ) {
										$row_total = $tax_row->total_tax_amount;
									}
								}

								echo '<td class="tax_row">' . woocommerce_price( $row_total ) . '</td>';
							}

							echo '</tr>';
						}
					?>
				</tbody>
			</table>
			<script type="text/javascript">
				jQuery('.toggle_tax_rows').click(function(){
					jQuery('.tax_row').toggle();
					jQuery('.total_row').toggle();
				});
				jQuery('.tax_row').hide();
			</script>
		</div>
	</div>
	<?php
}