<?php
/**
 * Class KKART_Report_Customers file.
 *
 * @package Kkart\Reports
 */

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

/**
 * KKART_Report_Customers
 *
 * @package     Kkart\Admin\Reports
 * @version     2.1.0
 */
class KKART_Report_Customers extends KKART_Admin_Report {

	/**
	 * Chart colors.
	 *
	 * @var array
	 */
	public $chart_colours = array();

	/**
	 * Customers.
	 *
	 * @var array
	 */
	public $customers = array();

	/**
	 * Get the legend for the main chart sidebar.
	 *
	 * @return array
	 */
	public function get_chart_legend() {
		$legend = array();

		$legend[] = array(
			/* translators: %s: signups amount */
			'title'            => sprintf( __( '%s signups in this period', 'kkart' ), '<strong>' . count( $this->customers ) . '</strong>' ),
			'color'            => $this->chart_colours['signups'],
			'highlight_series' => 2,
		);

		return $legend;
	}

	/**
	 * Get chart widgets.
	 *
	 * @return array
	 */
	public function get_chart_widgets() {
		$widgets = array();

		$widgets[] = array(
			'title'    => '',
			'callback' => array( $this, 'customers_vs_guests' ),
		);

		return $widgets;
	}

	/**
	 * Output customers vs guests chart.
	 */
	public function customers_vs_guests() {

		$customer_order_totals = $this->get_order_report_data(
			array(
				'data'         => array(
					'ID' => array(
						'type'     => 'post_data',
						'function' => 'COUNT',
						'name'     => 'total_orders',
					),
				),
				'where_meta'   => array(
					array(
						'meta_key'   => '_customer_user',
						'meta_value' => '0',
						'operator'   => '>',
					),
				),
				'filter_range' => true,
			)
		);

		$guest_order_totals = $this->get_order_report_data(
			array(
				'data'         => array(
					'ID' => array(
						'type'     => 'post_data',
						'function' => 'COUNT',
						'name'     => 'total_orders',
					),
				),
				'where_meta'   => array(
					array(
						'meta_key'   => '_customer_user',
						'meta_value' => '0',
						'operator'   => '=',
					),
				),
				'filter_range' => true,
			)
		);
		?>
		<div class="chart-container">
			<div class="chart-placeholder customers_vs_guests pie-chart" style="height:200px"></div>
			<ul class="pie-chart-legend">
				<li style="border-color: <?php echo esc_attr( $this->chart_colours['customers'] ); ?>"><?php esc_html_e( 'Customer sales', 'kkart' ); ?></li>
				<li style="border-color: <?php echo esc_attr( $this->chart_colours['guests'] ); ?>"><?php esc_html_e( 'Guest sales', 'kkart' ); ?></li>
			</ul>
		</div>
		<script type="text/javascript">
			jQuery(function(){
				 jQuery.plot(
					jQuery('.chart-placeholder.customers_vs_guests'),
					[
						{
							label: '<?php esc_html_e( 'Customer orders', 'kkart' ); ?>',
							data:  "<?php echo esc_html( $customer_order_totals->total_orders ); ?>",
							color: '<?php echo esc_html( $this->chart_colours['customers'] ); ?>'
						},
						{
							label: '<?php esc_html_e( 'Guest orders', 'kkart' ); ?>',
							data:  "<?php echo esc_html( $guest_order_totals->total_orders ); ?>",
							color: '<?php echo esc_html( $this->chart_colours['guests'] ); ?>'
						}
					],
					{
						grid: {
							hoverable: true
						},
						series: {
							pie: {
								show: true,
								radius: 1,
								innerRadius: 0.6,
								label: {
									show: false
								}
							},
							enable_tooltip: true,
							append_tooltip: "<?php echo esc_html( ' ' . __( 'orders', 'kkart' ) ); ?>",
						},
						legend: {
							show: false
						}
					}
				);

				jQuery('.chart-placeholder.customers_vs_guests').resize();
			});
		</script>
		<?php
	}

	/**
	 * Output the report.
	 */
	public function output_report() {

		$ranges = array(
			'year'       => __( 'Year', 'kkart' ),
			'last_month' => __( 'Last month', 'kkart' ),
			'month'      => __( 'This month', 'kkart' ),
			'7day'       => __( 'Last 7 days', 'kkart' ),
		);

		$this->chart_colours = array(
			'signups'   => '#3498db',
			'customers' => '#1abc9c',
			'guests'    => '#8fdece',
		);

		$current_range = ! empty( $_GET['range'] ) ? sanitize_text_field( wp_unslash( $_GET['range'] ) ) : '7day';

		if ( ! in_array( $current_range, array( 'custom', 'year', 'last_month', 'month', '7day' ), true ) ) {
			$current_range = '7day';
		}

		$this->check_current_range_nonce( $current_range );
		$this->calculate_current_range( $current_range );

		$admin_users = new WP_User_Query(
			array(
				'role'   => 'administrator',
				'fields' => 'ID',
			)
		);

		$manager_users = new WP_User_Query(
			array(
				'role'   => 'shop_manager',
				'fields' => 'ID',
			)
		);

		$users_query = new WP_User_Query(
			apply_filters(
				'kkart_admin_report_customers_user_query_args',
				array(
					'fields'  => array( 'user_registered' ),
					'exclude' => array_merge( $admin_users->get_results(), $manager_users->get_results() ),
				)
			)
		);

		$this->customers = $users_query->get_results();

		foreach ( $this->customers as $key => $customer ) {
			if ( strtotime( $customer->user_registered ) < $this->start_date || strtotime( $customer->user_registered ) > $this->end_date ) {
				unset( $this->customers[ $key ] );
			}
		}

		include KKART()->plugin_path() . '/includes/admin/views/html-report-by-date.php';
	}

	/**
	 * Output an export link.
	 */
	public function get_export_button() {

		$current_range = ! empty( $_GET['range'] ) ? sanitize_text_field( wp_unslash( $_GET['range'] ) ) : '7day';
		?>
		<a
			href="#"
			download="report-<?php echo esc_attr( $current_range ); ?>-<?php echo esc_attr( date_i18n( 'Y-m-d', current_time( 'timestamp' ) ) ); ?>.csv"
			class="export_csv"
			data-export="chart"
			data-xaxes="<?php esc_attr_e( 'Date', 'kkart' ); ?>"
			data-groupby="<?php echo esc_attr( $this->chart_groupby ); ?>"
		>
			<?php esc_html_e( 'Export CSV', 'kkart' ); ?>
		</a>
		<?php
	}

	/**
	 * Output the main chart.
	 */
	public function get_main_chart() {
		global $wp_locale;

		$customer_orders = $this->get_order_report_data(
			array(
				'data'         => array(
					'ID'        => array(
						'type'     => 'post_data',
						'function' => 'COUNT',
						'name'     => 'total_orders',
					),
					'post_date' => array(
						'type'     => 'post_data',
						'function' => '',
						'name'     => 'post_date',
					),
				),
				'where_meta'   => array(
					array(
						'meta_key'   => '_customer_user',
						'meta_value' => '0',
						'operator'   => '>',
					),
				),
				'group_by'     => $this->group_by_query,
				'order_by'     => 'post_date ASC',
				'query_type'   => 'get_results',
				'filter_range' => true,
			)
		);

		$guest_orders = $this->get_order_report_data(
			array(
				'data'         => array(
					'ID'        => array(
						'type'     => 'post_data',
						'function' => 'COUNT',
						'name'     => 'total_orders',
					),
					'post_date' => array(
						'type'     => 'post_data',
						'function' => '',
						'name'     => 'post_date',
					),
				),
				'where_meta'   => array(
					array(
						'meta_key'   => '_customer_user',
						'meta_value' => '0',
						'operator'   => '=',
					),
				),
				'group_by'     => $this->group_by_query,
				'order_by'     => 'post_date ASC',
				'query_type'   => 'get_results',
				'filter_range' => true,
			)
		);

		$signups         = $this->prepare_chart_data( $this->customers, 'user_registered', '', $this->chart_interval, $this->start_date, $this->chart_groupby );
		$customer_orders = $this->prepare_chart_data( $customer_orders, 'post_date', 'total_orders', $this->chart_interval, $this->start_date, $this->chart_groupby );
		$guest_orders    = $this->prepare_chart_data( $guest_orders, 'post_date', 'total_orders', $this->chart_interval, $this->start_date, $this->chart_groupby );

		$chart_data = wp_json_encode(
			array(
				'signups'         => array_values( $signups ),
				'customer_orders' => array_values( $customer_orders ),
				'guest_orders'    => array_values( $guest_orders ),
			)
		);
		?>
		<div class="chart-container">
			<div class="chart-placeholder main"></div>
		</div>
		<script type="text/javascript">
			var main_chart;

			jQuery(function(){
				var chart_data = JSON.parse( decodeURIComponent( '<?php echo rawurlencode( $chart_data ); ?>' ) );

				var drawGraph = function( highlight ) {
					var series = [
							{
								label: "<?php echo esc_js( __( 'Customer orders', 'kkart' ) ); ?>",
								data: chart_data.customer_orders,
								color: '<?php echo esc_html( $this->chart_colours['customers'] ); ?>',
								bars: { fillColor: '<?php echo esc_html( $this->chart_colours['customers'] ); ?>', fill: true, show: true, lineWidth: 0, barWidth: <?php echo esc_html( $this->barwidth ); ?> * 0.5, align: 'center' },
								shadowSize: 0,
								enable_tooltip: true,
								append_tooltip: "<?php echo esc_html( ' ' . __( 'customer orders', 'kkart' ) ); ?>",
								stack: true,
							},
							{
								label: "<?php echo esc_js( __( 'Guest orders', 'kkart' ) ); ?>",
								data: chart_data.guest_orders,
								color: '<?php echo esc_html( $this->chart_colours['guests'] ); ?>',
								bars: { fillColor: '<?php echo esc_html( $this->chart_colours['guests'] ); ?>', fill: true, show: true, lineWidth: 0, barWidth: <?php echo esc_html( $this->barwidth ); ?> * 0.5, align: 'center' },
								shadowSize: 0,
								enable_tooltip: true,
								append_tooltip: "<?php echo esc_html( ' ' . __( 'guest orders', 'kkart' ) ); ?>",
								stack: true,
							},
							{
								label: "<?php echo esc_js( __( 'Signups', 'kkart' ) ); ?>",
								data: chart_data.signups,
								color: '<?php echo esc_html( $this->chart_colours['signups'] ); ?>',
								points: { show: true, radius: 5, lineWidth: 3, fillColor: '#fff', fill: true },
								lines: { show: true, lineWidth: 4, fill: false },
								shadowSize: 0,
								enable_tooltip: true,
								append_tooltip: "<?php echo esc_html( ' ' . __( 'new users', 'kkart' ) ); ?>",
								stack: false
							},
						];

					if ( highlight !== 'undefined' && series[ highlight ] ) {
						highlight_series = series[ highlight ];

						highlight_series.color = '#9c5d90';

						if ( highlight_series.bars )
							highlight_series.bars.fillColor = '#9c5d90';

						if ( highlight_series.lines ) {
							highlight_series.lines.lineWidth = 5;
						}
					}

					main_chart = jQuery.plot(
						jQuery('.chart-placeholder.main'),
						series,
						{
							legend: {
								show: false
							},
							grid: {
								color: '#aaa',
								borderColor: 'transparent',
								borderWidth: 0,
								hoverable: true
							},
							xaxes: [ {
								color: '#aaa',
								position: "bottom",
								tickColor: 'transparent',
								mode: "time",
								timeformat: "<?php echo ( 'day' === $this->chart_groupby ) ? '%d %b' : '%b'; ?>",
								monthNames: JSON.parse( decodeURIComponent( '<?php echo rawurlencode( wp_json_encode( array_values( $wp_locale->month_abbrev ) ) ); ?>' ) ),
								tickLength: 1,
								minTickSize: [1, "<?php echo esc_html( $this->chart_groupby ); ?>"],
								tickSize: [1, "<?php echo esc_html( $this->chart_groupby ); ?>"],
								font: {
									color: "#aaa"
								}
							} ],
							yaxes: [
								{
									min: 0,
									minTickSize: 1,
									tickDecimals: 0,
									color: '#ecf0f1',
									font: { color: "#aaa" }
								}
							],
						}
					);
					jQuery('.chart-placeholder').resize();
				}

				drawGraph();

				jQuery('.highlight_series').hover(
					function() {
						drawGraph( jQuery(this).data('series') );
					},
					function() {
						drawGraph();
					}
				);
			});
		</script>
		<?php
	}
}
