<?php
/**
 * Player List Class
 *
 * The SportsPress player list class handles individual player list data.
 *
 * @class 		SP_Player_List
 * @version		2.6.4
 * @package		SportsPress/Classes
 * @category	Class
 * @author 		ThemeBoy
 */
class SP_Player_List extends SP_Secondary_Post {

	/** @var array The columns array. */
	public $columns;

	/** @var array The sort priorities array. */
	public $priorities;

	/**
	 * Constructor
	 */
	public function __construct( $post ) {
		parent::__construct( $post );
		$this->columns = get_post_meta( $this->ID, 'sp_columns', true );
		if ( is_array( $this->columns ) ) $this->columns = array_filter( $this->columns );
		else $this->columns = array( 'number', 'team', 'position' );
	}

	/**
	 * Returns formatted data
	 *
	 * @access public
	 * @param bool $admin
	 * @return array
	 */
	public function data( $admin = false ) {
		$league_ids = sp_get_the_term_ids( $this->ID, 'sp_league' );
		$season_ids = sp_get_the_term_ids( $this->ID, 'sp_season' );
		$position_ids = sp_get_the_term_ids( $this->ID, 'sp_position' );
		$team = get_post_meta( $this->ID, 'sp_team', true );
		$era = get_post_meta( $this->ID, 'sp_era', true );
		$list_stats = (array)get_post_meta( $this->ID, 'sp_players', true );
		$adjustments = get_post_meta( $this->ID, 'sp_adjustments', true );
		$orderby = get_post_meta( $this->ID, 'sp_orderby', true );
		$crop = get_post_meta( $this->ID, 'sp_crop', true );
		$order = get_post_meta( $this->ID, 'sp_order', true );
		$select = get_post_meta( $this->ID, 'sp_select', true );

		$this->date = $this->__get( 'date' );

		if ( ! $this->date )
			$this->date = 0;

		// Apply defaults
		if ( empty( $orderby ) ) $orderby = 'number';
		if ( empty( $order ) ) $order = 'ASC';
		if ( empty( $select ) ) $select = 'auto';

		if ( 'range' == $this->date ) {

			$this->relative = get_post_meta( $this->ID, 'sp_date_relative', true );

			if ( $this->relative ) {

				$this->past = get_post_meta( $this->ID, 'sp_date_past', true );

			} else {

				$this->from = get_post_meta( $this->ID, 'sp_date_from', true );
				$this->to = get_post_meta( $this->ID, 'sp_date_to', true );

			}

		}

		// Get labels from performance variables
		$performance_labels = (array)sp_get_var_labels( 'sp_performance' );

		// Get labels from outcome variables
		$outcome_labels = (array)sp_get_var_labels( 'sp_outcome' );

		// Get labels from result variables
		$result_labels = (array)sp_get_var_labels( 'sp_result' );

		// Get players automatically if set to auto
		if ( 'auto' == $select ) {
			$player_ids = array();

			$args = array(
				'post_type' => 'sp_player',
				'numberposts' => -1,
				'posts_per_page' => -1,
				'meta_key' => 'sp_number',
				'orderby' => 'meta_value_num',
				'order' => 'ASC',
				'tax_query' => array(
					'relation' => 'AND',
				),
			);

			if ( $league_ids ):
				$args['tax_query'][] = array(
					'taxonomy' => 'sp_league',
					'field' => 'term_id',
					'terms' => $league_ids
				);
			endif;

			if ( $season_ids ):
				$args['tax_query'][] = array(
					'taxonomy' => 'sp_season',
					'field' => 'term_id',
					'terms' => $season_ids
				);
			endif;
			
			$team_key = 'sp_team';
			if ( $team ):
				switch ( $era ):
					case 'current':
						$team_key = 'sp_current_team';
						break;
					case 'past':
						$team_key = 'sp_past_team';
						break;
				endswitch;
				$args['meta_query'] = array(
					array(
						'key' => $team_key,
						'value' => $team
					),
				);
			endif;

			if ( $position_ids ):
				$args['tax_query'][] = array(
					'taxonomy' => 'sp_position',
					'field' => 'term_id',
					'terms' => $position_ids
				);
			endif;

			$args = apply_filters( 'sportspress_player_list_args', $args, $team );

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

			$players = apply_filters( 'sportspress_player_list_players', $players, $args, $team, $team_key );

			if ( $players && is_array( $players ) ) {
				foreach ( $players as $player ) {
					$player_ids[] = $player->ID;
				}
			}
		} else {
			$player_ids = (array)get_post_meta( $this->ID, 'sp_player', false );
		}

		// Get all leagues populated with stats where available
		$tempdata = sp_array_combine( $player_ids, $list_stats );

		// Create entry for each player in totals
		$totals = array();
		$placeholders = array();

		// Initialize columns
		$columns = array();

		$args = array(
			'post_type' => array( 'sp_performance', 'sp_metric', 'sp_statistic' ),
			'numberposts' => -1,
			'posts_per_page' => -1,
	  		'orderby' => 'menu_order',
	  		'order' => 'ASC',
			'meta_query' => array(
        		'relation' => 'OR',
				array(
					'key' => 'sp_format',
					'value' => 'number',
					'compare' => 'NOT EXISTS',
				),
				array(
					'key' => 'sp_format',
					'value' => array( 'equation', 'text' ),
					'compare' => 'NOT IN',
				),
			),
		);
		$stats = get_posts( $args );

		$formats = array();
		$sendoffs = array();
		$data = array();
		$merged = array();
		$column_order = array();
		$ordered_columns = array();

		if ( $stats ):

			foreach ( $stats as $stat ):

				// Get post meta
				$meta = get_post_meta( $stat->ID );

				// Add equation to object
				if ( $stat->post_type == 'sp_metric' ):
					$stat->equation = null;
				else:
					$stat->equation = sp_array_value( sp_array_value( $meta, 'sp_equation', array() ), 0, 0 );
				endif;

				// Add precision to object
				$stat->precision = sp_array_value( sp_array_value( $meta, 'sp_precision', array() ), 0, 0 ) + 0;

				// Add column name to columns
				$columns[ $stat->post_name ] = $stat->post_title;

				// Add format
				$format = get_post_meta( $stat->ID, 'sp_format', true );
				if ( '' === $format ) {
					$format = 'number';
				}
				$formats[ $stat->post_name ] = $format;

				// Add sendoffs
				$sendoff = get_post_meta( $stat->ID, 'sp_sendoff', true );
				if ( $sendoff ) {
					$sendoffs[] = $stat->post_name;
				}

				$column_order[] = $stat->post_name;

			endforeach;

		endif;

		foreach ( $column_order as $slug ):

			if ( ! in_array( $slug, $this->columns ) ) continue;

			$ordered_columns[] = $slug;

		endforeach;

		$diff = array_diff( $this->columns, $ordered_columns );
		$this->columns = array_merge( $diff, $ordered_columns );

		foreach ( $player_ids as $player_id ):
			if ( ! $player_id )
				continue;

			// Initialize player totals
			$totals[ $player_id ] = array( 'eventsattended' => 0, 'eventsplayed' => 0, 'eventsstarted' => 0, 'eventssubbed' => 0, 'eventminutes' => 0 );

			foreach ( $performance_labels as $key => $value ):
				$totals[ $player_id ][ $key ] = 0;
			endforeach;

			foreach ( $outcome_labels as $key => $value ):
				$totals[ $player_id ][ $key ] = 0;
			endforeach;

			foreach ( $result_labels as $key => $value ):
				$totals[ $player_id ][ $key . 'for' ] = $totals[ $player_id ][ $key . 'against' ] = 0;
			endforeach;

			// Get metrics
			$metrics = (array) get_post_meta( $player_id, 'sp_metrics', true );
			foreach ( $metrics as $key => $value ):
				$adjustment = sp_array_value( sp_array_value( $adjustments, $player_id, array() ), $key, null );
				if ( $adjustment != null )
					$metrics[ $key ] += $adjustment;
			endforeach;

			// Get static stats
			$static = get_post_meta( $player_id, 'sp_statistics', true );

			// Get league and season arrays for static stats
			$static_league_ids = ( empty( $league_ids ) ? array( 0 ) : $league_ids );
			$static_season_ids = ( empty( $season_ids ) ? array( 0 ) : $season_ids );

			// Add static stats to placeholders
			if ( $static_league_ids && $static_season_ids ):
				foreach ( $static_league_ids as $league_id ):
					foreach ( $static_season_ids as $season_id ):
						$player_league_season_stats = sp_array_value( sp_array_value( $static, $league_id, array() ), $season_id, array() );
						if ( is_array( $player_league_season_stats ) ):
							foreach ( $player_league_season_stats as $key => $value ):
								$current_value = sp_array_value( sp_array_value( $placeholders, $player_id, array() ), $key, 0 );
								$value = floatval( $value );
								$placeholders[ $player_id ][ $key ] = $current_value + $value;
							endforeach;
						endif;
					endforeach;
				endforeach;
			else:
				$placeholders[ $player_id ] = sp_array_value( sp_array_value( $static, 0, array() ), 0, array() );
			endif;

			// Add metrics to placeholders
			$placeholders[ $player_id ] = array_merge( $metrics, sp_array_value( $placeholders, $player_id, array() ) );
		endforeach;

		$args = array(
			'post_type' => 'sp_event',
			'numberposts' => -1,
			'posts_per_page' => -1,
			'order' => 'DESC',
			'meta_query' => array(
				array(
					'key' => 'sp_format',
					'value' => apply_filters( 'sportspress_competitive_event_formats', array( 'league' ) ),
					'compare' => 'IN',
				),
			),
			'tax_query' => array(
				'relation' => 'AND',
			),
		);

		if ( $league_ids ):
			$args['tax_query'][] = array(
				'taxonomy' => 'sp_league',
				'field' => 'term_id',
				'terms' => $league_ids
			);
		endif;

		if ( $season_ids ):
			$args['tax_query'][] = array(
				'taxonomy' => 'sp_season',
				'field' => 'term_id',
				'terms' => $season_ids
			);
		endif;

		if ( $this->date !== 0 ):
			if ( $this->date == 'w' ):
				$args['year'] = date_i18n('Y');
				$args['w'] = date_i18n('W');
			elseif ( $this->date == 'day' ):
				$args['year'] = date_i18n('Y');
				$args['day'] = date_i18n('j');
				$args['monthnum'] = date_i18n('n');
			elseif ( $this->date == 'range' ):
				if ( $this->relative ):
					add_filter( 'posts_where', array( $this, 'relative' ) );
				else:
					add_filter( 'posts_where', array( $this, 'range' ) );
				endif;
			endif;
		endif;

		$args = apply_filters( 'sportspress_list_data_event_args', $args );
		
		$events = get_posts( $args );

		// Remove range filters
		remove_filter( 'posts_where', array( $this, 'range' ) );
		remove_filter( 'posts_where', array( $this, 'relative' ) );

		// Event loop
		foreach ( $events as $i => $event ):
			$results = (array)get_post_meta( $event->ID, 'sp_results', true );
			$team_performance = get_post_meta( $event->ID, 'sp_players', true );
			$timeline = (array)get_post_meta( $event->ID, 'sp_timeline', true );
			$minutes = get_post_meta( $event->ID, 'sp_minutes', true );
			if ( $minutes === '' ) $minutes = get_option( 'sportspress_event_minutes', 90 );

			// Add all team performance
			if ( is_array( $team_performance ) ): foreach ( $team_performance as $team_id => $players ):
				if ( is_array( $players ) ): foreach ( $players as $player_id => $player_performance ):
					if ( array_key_exists( $player_id, $totals ) && is_array( $totals[ $player_id ] ) ):

						$player_performance = sp_array_value( $players, $player_id, array() );

						foreach ( $player_performance as $key => $value ):
							if ( 'outcome' == $key ):
								// Increment events attended, played, and started
								$totals[ $player_id ]['eventsattended'] ++;
								$totals[ $player_id ]['eventsplayed'] ++;
								$totals[ $player_id ]['eventsstarted'] ++;
								$totals[ $player_id ]['eventminutes'] += $minutes;

								// Convert to array
								if ( ! is_array( $value ) ):
									$value = array( $value );
								endif;

								foreach ( $value as $outcome ):

									if ( $outcome && $outcome != '-1' ):

										// Increment events attended and outcome count
										if ( array_key_exists( $outcome, $totals[ $player_id ] ) ):
											$totals[ $player_id ][ $outcome ] ++;
										endif;
									endif;
								endforeach;
							elseif ( array_key_exists( $key, $totals[ $player_id ] ) ):
								$value = floatval( $value );
								$totals[ $player_id ][ $key ] += $value;
							endif;
						endforeach;

						$team_results = sp_array_value( $results, $team_id, array() );

						// Loop through home team
						foreach ( $team_results as $result_slug => $team_result ):
							if ( 'outcome' == $result_slug ):

								// Increment events attended
								$totals[ $player_id ]['eventsattended'] ++;

								// Continue with incrementing values if active in event
								if ( sp_array_value( $player_performance, 'status' ) != 'sub' || sp_array_value( $player_performance, 'sub', 0 ) ):
									$totals[ $player_id ]['eventsplayed'] ++;

									// Initialize played minutes
									$played_minutes = $minutes;

									// Adjust for sendoffs and substitution time
									if ( sp_array_value( $player_performance, 'status' ) === 'sub' ):

										// Substituted for another player
										$timeline_performance = sp_array_value( sp_array_value( $timeline, $team_id, array() ), $player_id, array() );
										if ( empty( $timeline_performance ) ) continue;
										foreach ( $sendoffs as $sendoff_key ):
											if ( ! array_key_exists( $sendoff_key, $timeline_performance ) ) continue;
											$sendoff_times = (array) sp_array_value( sp_array_value( sp_array_value( $timeline, $team_id ), $player_id ), $sendoff_key, array() );
											$sendoff_times = array_filter( $sendoff_times );
											$sendoff_time = end( $sendoff_times );
											if ( ! $sendoff_time ) $sendoff_time = 0;

											// Count minutes until being sent off
											$played_minutes = $sendoff_time;
										endforeach;

										// Subtract minutes prior to substitution
										$substitution_time = ( int ) sp_array_value( sp_array_value( sp_array_value( sp_array_value( $timeline, $team_id ), $player_id ), 'sub' ), 0, 0 );
										$played_minutes -= $substitution_time;
									else:

										// Starting lineup with possible substitution
										$subbed_out = false;
										foreach ( $timeline as $timeline_team => $timeline_players ):
											if ( ! is_array( $timeline_players ) ) continue;
											foreach ( $timeline_players as $timeline_player => $timeline_performance ):
												if ( 'sub' === sp_array_value( sp_array_value( $players, $timeline_player, array() ), 'status' ) && $player_id === (int) sp_array_value( sp_array_value( $players, $timeline_player, array() ), 'sub', 0 ) ):
													$substitution_time = sp_array_value( sp_array_value( sp_array_value( sp_array_value( $timeline, $team_id ), $timeline_player ), 'sub' ), 0, 0 );
													if ( $substitution_time ):

														// Count minutes until substitution
														$played_minutes = $substitution_time;
														$subbed_out = true;
													endif;
												endif;
											endforeach;

											// No need to check for sendoffs if subbed out
											if ( $subbed_out ) continue;

											// Check for sendoffs
											$timeline_performance = sp_array_value( $timeline_players, $player_id, array() );
											if ( empty( $timeline_performance ) ) continue;
											foreach ( $sendoffs as $sendoff_key ):
												if ( ! array_key_exists( $sendoff_key, $timeline_performance ) ) continue;
												if ( ! sp_array_value( $player_performance, $sendoff_key, 0 ) ) continue;
												$sendoff_times = sp_array_value( sp_array_value( sp_array_value( $timeline, $team_id ), $player_id ), $sendoff_key );
												$sendoff_times = array_filter( $sendoff_times );
												$sendoff_time = end( $sendoff_times );
												if ( false === $sendoff_time ) continue;

												// Count minutes until being sent off
												$played_minutes = $sendoff_time;
											endforeach;
										endforeach;
									endif;

									$totals[ $player_id ]['eventminutes'] += max( 0, $played_minutes );

									if ( sp_array_value( $player_performance, 'status' ) == 'lineup' ):
										$totals[ $player_id ]['eventsstarted'] ++;
									elseif ( sp_array_value( $player_performance, 'status' ) == 'sub' && sp_array_value( $player_performance, 'sub', 0 ) ):
										$totals[ $player_id ]['eventssubbed'] ++;
									endif;

									$value = $team_result;

									// Convert to array
									if ( ! is_array( $value ) ):
										$value = array( $value );
									endif;

									foreach ( $value as $outcome ):

										if ( $outcome && $outcome != '-1' ):

											// Increment events attended and outcome count
											if ( array_key_exists( $outcome, $totals[ $player_id ] ) ):
												$totals[ $player_id ][ $outcome ] ++;
											endif;
										endif;
									endforeach;
								endif;
							else:

								// Add to total
								$value = sp_array_value( $totals[ $player_id ], $result_slug . 'for', 0 );
								$value += floatval( $team_result );
								$totals[ $player_id ][ $result_slug . 'for' ] = $value;

								// Add subset
								$totals[ $player_id ][ $result_slug . 'for' . ( $i + 1 ) ] = $team_result;
							endif;
						endforeach;

						// Loop through away teams
						if ( sizeof( $results ) ):
							foreach ( $results as $id => $team_results ):
								if ( $team_id == $id ) continue;
								unset( $team_results['outcome'] );
								foreach ( $team_results as $result_slug => $team_result ):

									// Add to total
									$value = sp_array_value( $totals[ $player_id ], $result_slug . 'against', 0 );
									$value += floatval( $team_result );
									$totals[ $player_id ][ $result_slug . 'against' ] = $value;

									// Add subset
									$totals[ $player_id ][ $result_slug . 'against' . ( $i + 1 ) ] = $team_result;
								endforeach;
							endforeach;
						endif;
					endif;
				endforeach; endif;
			endforeach; endif;
			$i++;
		endforeach;

		// Fill in empty placeholder values for each player
		foreach ( $player_ids as $player_id ):
			if ( ! $player_id )
				continue;

			$placeholders[ $player_id ] = array_merge( sp_array_value( $totals, $player_id, array() ), array_filter( sp_array_value( $placeholders, $player_id, array() ) ) );

			// Player adjustments
			$player_adjustments = sp_array_value( $adjustments, $player_id, array() );

			foreach ( $stats as $stat ):
				if ( $stat->equation === null ):
					$placeholder = sp_array_value( $player_adjustments, $stat->post_name, null );
					if ( $placeholder == null ):
						$placeholder = '-';
					endif;
				else:
					// Solve
					$placeholder = sp_solve( $stat->equation, $placeholders[ $player_id ], $stat->precision );

					// Adjustment
					$adjustment = sp_array_value( $player_adjustments, $stat->post_name, 0 );

					// Apply adjustment
					if ( $adjustment != 0 ):
						$placeholder += $adjustment;
						$placeholder = number_format( $placeholder, $stat->precision ? $stat->precision : 0, '.', '' );
					endif;
				endif;

				if ( $placeholder !== '' && is_numeric( $placeholder ) ):
					$placeholder = sp_array_value( $placeholders[ $player_id ], $stat->post_name, 0 ) + $placeholder;
				else:
					$placeholder = sp_array_value( $placeholders[ $player_id ], $stat->post_name, '-' );
				endif;

				if ( is_numeric( $placeholder ) && $stat->precision ):
					$placeholder = number_format( $placeholder, $stat->precision, '.', '' );
				endif;

				$placeholders[ $player_id ][ $stat->post_name ] = $placeholder;
			endforeach;

		endforeach;

		// Merge the data and placeholders arrays
		foreach( $placeholders as $player_id => $player_data ):

			$player_data = array_merge( $column_order, $player_data );
			$placeholders[ $player_id ] = $player_data;

			// Add player number and name to row
			$merged[ $player_id ] = array();
			if ( in_array( 'number', $this->columns ) ):
				$player_data['number'] = get_post_meta( $player_id, 'sp_number', true );
			endif;
			
			$player_data['name'] = get_the_title( $player_id );
			
			if ( in_array( 'team', $this->columns ) ):
				$player_data['team'] = get_post_meta( $player_id, 'sp_team', true );
			endif;
			
			if ( in_array( 'position', $this->columns ) ):
				$player_data['position'] = null;
			endif;

			foreach( $player_data as $key => $value ):

				// Use static data if key exists and value is not empty, else use placeholder
				if ( array_key_exists( $player_id, $tempdata ) && array_key_exists( $key, $tempdata[ $player_id ] ) && $tempdata[ $player_id ][ $key ] != '' ):
					$value = $tempdata[ $player_id ][ $key ];
				endif;
				
				$merged[ $player_id ][ $key ] = $value;

			endforeach;
		endforeach;

		if ( $orderby != 'number' || $order != 'ASC' ):
			$this->priorities = array(
				array(
					'key' => $orderby,
					'order' => $order,
				),
			);
			uasort( $merged, array( $this, 'sort' ) );
		endif;

		// Rearrange data array to reflect values
		foreach( $merged as $key => $value ):
			if ( $crop && ! sp_array_value( $value, $orderby, 0 ) ) {
				// Crop
				unset( $merged[ $key ] );
			} else {
				// Add to main data array
				$data[ $key ] = $tempdata[ $key ];
			}
		endforeach;
		
		if ( $admin ):

			// Convert to time notation
			if ( in_array( 'time', $formats ) ):
				foreach ( $placeholders as $player => $stats ):
					if ( ! is_array( $stats ) ) continue;

					foreach ( $stats as $key => $value ):

						// Continue if not time format
						if ( 'time' !== sp_array_value( $formats, $key ) ) continue;

						$intval = intval( $value );
						$timeval = gmdate( 'i:s', $intval );
						$hours = floor( $intval / 3600 );

						if ( '00' != $hours )
							$timeval = $hours . ':' . $timeval;

						$timeval = preg_replace( '/^0/', '', $timeval );

						$placeholders[ $player ][ $key ] = $timeval;
					endforeach;
				endforeach;
			endif;

			$labels = array();
			foreach( $this->columns as $key ):
				if ( $key == 'number' ):
					$labels[ $key ] = '#';
				elseif ( $key == 'team' ):
					$labels[ $key ] = __( 'Team', 'sportspress' );
				elseif ( $key == 'position' ):
					$labels[ $key ] = __( 'Position', 'sportspress' );
				elseif ( array_key_exists( $key, $columns ) ):
					$labels[ $key ] = $columns[ $key ];
				endif;
			endforeach;

			return array( $labels, $data, $placeholders, $merged, $orderby );
		else:

			// Convert to time notation
			if ( in_array( 'time', $formats ) ):
				foreach ( $merged as $player => $stats ):
					if ( ! is_array( $stats ) ) continue;

					foreach ( $stats as $key => $value ):

						// Continue if not time format
						if ( 'time' !== sp_array_value( $formats, $key ) ) continue;

						$intval = intval( $value );
						$timeval = gmdate( 'i:s', $intval );
						$hours = floor( $intval / 3600 );

						if ( '00' != $hours )
							$timeval = $hours . ':' . $timeval;

						$timeval = preg_replace( '/^0/', '', $timeval );

						$merged[ $player ][ $key ] = $timeval;
					endforeach;
				endforeach;
			endif;

			if ( ! is_array( $this->columns ) )
				$this->columns = array();
			foreach ( $columns as $key => $label ):
				if ( ! in_array( $key, $this->columns ) ):
					unset( $columns[ $key ] );
				endif;
			endforeach;

			$labels = array();
			if ( in_array( 'number', $this->columns ) ) $labels['number'] = '#';
			$labels['name'] = __( 'Player', 'sportspress' );
			if ( in_array( 'team', $this->columns ) ) $labels['team'] = __( 'Team', 'sportspress' );
			if ( in_array( 'position', $this->columns ) ) $labels['position'] = __( 'Position', 'sportspress' );

			$merged[0] = array_merge( $labels, $columns );
			return $merged;
		endif;
	}

	/**
	 * Sort the table by priorities.
	 *
	 * @param array $a
	 * @param array $b
	 * @return int
	 */
	public function sort( $a, $b ) {

		// Loop through priorities
		if ( is_array( $this->priorities ) ) : foreach( $this->priorities as $priority ):

			// Proceed if columns are not equal
			if ( sp_array_value( $a, $priority['key'], 0 ) != sp_array_value( $b, $priority['key'], 0 ) ):

				if ( $priority['key'] == 'name' ):

					$output = strcmp( sp_array_value( $a, 'name', null ), sp_array_value( $b, 'name', null ) );

				else:

					// Compare performance values
					$output = floatval( sp_array_value( $a, $priority['key'], 0 ) ) - floatval( sp_array_value( $b, $priority['key'], 0 ) );

				endif;

				// Flip value if descending order
				if ( $priority['order'] == 'DESC' ) $output = 0 - $output;

				return ( $output > 0 );

			endif;

		endforeach; endif; 

		// Default sort by number
		return floatval( sp_array_value( $a, 'number', 0 ) ) - floatval( sp_array_value( $b, 'number', 0 ) );
	}
}
