Introduced explicit record interface for event results.

src/Manager/Toolbar_Manager.php

@@ -38,16 +38,10 @@ class Toolbar_Manager implements ServiceProviderInterface, Bootable_Provider_Int
 
 		global $timestart;
 
-		$records = $this->laps['records'];
 		$start = $timestart * 1000;
 		$end   = microtime( true ) * 1000;
 		$total = $end - $start;
 
-		foreach ( $records as $key => $event ) {
-			$records[ $key ]['offset'] = round( ( $event['origin'] - $start ) / $total * 100, 2 );
-			$records[ $key ]['width']  = round( $event['duration'] / $total * 100, 2 );
-		}
-
 		$wp_admin_bar->add_node( [
 			'id'    => 'laps',
 			'title' => sprintf( 'Lap: %ss', round( $total / 1000, 3 ) ),
@@ -58,7 +52,7 @@ class Toolbar_Manager implements ServiceProviderInterface, Bootable_Provider_Int
 			'parent' => 'laps',
 			'meta'   => [
 				'html' => $this->laps['mustache']->render( 'laps', [
-					'timelines' => new Timeline_Iterator( new Recursive_Record_Iterator( $records ) ),
+					'timelines' => new Timeline_Iterator( new Recursive_Record_Iterator( $this->laps['records'] ) ),
 				] ),
 			],
 		] );

src/Record/Hook_Record_Collector.php

@@ -122,16 +122,6 @@ class Hook_Record_Collector implements ServiceProviderInterface, Bootable_Provid
 
 	protected function transform( $name, StopwatchEvent $event ) {
 
-		$duration = $event->getDuration();
-		$memory   = $event->getMemory() / 1024 / 1024;
-
-		return [
-			'name'        => $name,
-			'description' => "{$name} - {$duration} ms - {$memory} MB",
-			'origin'      => $event->getOrigin(),
-			'duration'    => $duration,
-			'memory'      => $memory,
-			'category'    => $event->getCategory(),
-		];
+		return new Stopwatch_Record($name, $event );
 	}
 }

src/Record/Http_Record_Collector.php

@@ -69,16 +69,6 @@ class Http_Record_Collector implements ServiceProviderInterface, Bootable_Provid
 
 	protected function transform( $name, StopwatchEvent $event ) {
 
-		$duration = $event->getDuration();
-		$memory   = $event->getMemory() / 1024 / 1024;
-
-		return [
-			'name'        => $name,
-			'description' => $name,
-			'origin'      => $event->getOrigin(),
-			'duration'    => $duration,
-			'memory'      => $memory,
-			'category'    => $event->getCategory(),
-		];
+		return new Stopwatch_Record( $name, $event );
 	}
 }

src/Record/Record_Collector_Interface.php

@@ -4,5 +4,8 @@ namespace Rarst\Laps\Record;
 
 interface Record_Collector_Interface {
 
+	/**
+	 * @return Record_Interface[]
+	 */
 	public function get_records();
 }

src/Record/Record_Interface.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Rarst\Laps\Record;
+
+/**
+ * Interface for recorded results of individual event.
+ */
+interface Record_Interface {
+
+	/**
+	 * @return string
+	 */
+	public function get_name();
+
+	/**
+	 * @return string
+	 */
+	public function get_description();
+
+	/**
+	 * @return float Timestamp of record start.
+	 */
+	public function get_origin();
+
+	/**
+	 * @return int Record duration in milliseconds.
+	 */
+	public function get_duration();
+
+	/**
+	 * @return string
+	 */
+	public function get_category();
+}

src/Record/Recursive_Record_Iterator.php

@@ -6,32 +6,39 @@ class Recursive_Record_Iterator extends \ArrayIterator implements \RecursiveIter
 
 	protected $children = [];
 
+	/**
+	 * @param Record_Interface[] $records
+	 * @param int                $flags
+	 */
 	public function __construct( array $records, $flags = 0 ) {
 
 		usort( $records, [ $this, 'sort_origin' ] );
 		$end = 0;
 
-		foreach ( $records as $key => $event ) {
+		foreach ( $records as $key => $record ) {
 
-			if ( $event['origin'] < $end ) {
+			if ( $record->get_origin() < $end ) {
 				unset( $records[ $key ] );
-				$this->children[] = $event;
+				$this->children[] = $record;
 				continue;
 			}
 
-			$end = $event['origin'] + $event['duration'];
+			$end = $record->get_origin() + $record->get_duration();
 		}
 
 		parent::__construct( $records, $flags );
 	}
 
-	protected function sort_origin( $record_a, $record_b ) {
+	protected function sort_origin( Record_Interface $record_a, Record_Interface $record_b ) {
 
-		if ( $record_a['origin'] === $record_b['origin'] ) {
+		$origin_a = $record_a->get_origin();
+		$origin_b = $record_b->get_origin();
+
+		if ( $origin_a === $origin_b ) {
 			return 0;
 		}
 
-		return ( $record_a['origin'] < $record_b['origin'] ) ? - 1 : 1;
+		return ( $origin_a < $origin_b ) ? - 1 : 1;
 	}
 
 	public function hasChildren() {

src/Record/Sql_Record.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace Rarst\Laps\Record;
+
+class Sql_Record implements Record_Interface {
+
+	/** @var string $sql */
+	protected $sql;
+
+	/** @var float $origin */
+	protected $origin;
+
+	/** @var int $duration */
+	protected $duration;
+
+	/** @var string $category */
+	protected $category;
+
+	/**
+	 * @param string $sql
+	 * @param float  $origin
+	 * @param int    $duration
+	 * @param string $category
+	 */
+	public function __construct( $sql, $origin, $duration, $category = 'query-read' ) {
+		$this->sql      = $sql;
+		$this->origin   = $origin;
+		$this->duration = $duration;
+		$this->category = $category;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function get_name() {
+		return $this->sql;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function get_description() {
+		$duration = round( $this->duration );
+
+		return "{$this->sql} – {$duration} ms";
+	}
+
+	/**
+	 * @return float Timestamp of record start.
+	 */
+	public function get_origin() {
+		return $this->origin;
+	}
+
+	/**
+	 * @return int Record duration in milliseconds.
+	 */
+	public function get_duration() {
+		return $this->duration;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function get_category() {
+		return $this->category;
+	}
+}

src/Record/Sql_Record_Collector.php

@@ -65,11 +65,7 @@ class Sql_Record_Collector implements ServiceProviderInterface, Bootable_Provide
 			$duration      *= 1000;
 			$last_query_end = $query_start + $duration;
 
-			$name        = $sql;
-			$description = $name;
-			$origin      = $query_start;
-
-			$query_data[] = compact( 'name', 'description', 'origin', 'duration', 'category' );
+			$query_data[] = new Sql_Record( $sql, $query_start, $duration, $category );
 		}
 
 		return $query_data;

src/Record/Stopwatch_Record.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Rarst\Laps\Record;
+
+use Symfony\Component\Stopwatch\StopwatchEvent;
+
+class Stopwatch_Record implements Record_Interface {
+
+	/** @var string $name */
+	protected $name;
+
+	/** @var StopwatchEvent */
+	protected $stopwatch_event;
+
+	/**
+	 * @param string         $name            Event name.
+	 * @param StopwatchEvent $stopwatch_event Stopwatch event instance.
+	 */
+	public function __construct( $name, StopwatchEvent $stopwatch_event ) {
+		$this->name            = $name;
+		$this->stopwatch_event = $stopwatch_event;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function get_name() {
+		return $this->name;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function get_description() {
+
+		$duration = $this->stopwatch_event->getDuration();
+		$memory   = $this->stopwatch_event->getMemory() / 1024 / 1024;
+
+		return "{$this->name} – {$duration} ms – {$memory} MB";
+	}
+
+	/**
+	 * @return float Timestamp of record start.
+	 */
+	public function get_origin() {
+		return $this->stopwatch_event->getOrigin();
+	}
+
+	/**
+	 * @return int Record duration in milliseconds.
+	 */
+	public function get_duration() {
+		return $this->stopwatch_event->getDuration();
+	}
+
+	/**
+	 * @return string
+	 */
+	public function get_category() {
+		return $this->stopwatch_event->getCategory();
+	}
+}

src/Timeline_Iterator.php

@@ -2,10 +2,17 @@
 
 namespace Rarst\Laps;
 
+use Rarst\Laps\Record\Record_Interface;
 use Rarst\Laps\Record\Recursive_Record_Iterator;
 
 class Timeline_Iterator implements \Iterator {
 
+	/** @var float $origin Start point for the timeline. */
+	protected $origin;
+
+	/** @var float $end Timeline duration. */
+	protected $total;
+
 	/** @var Recursive_Record_Iterator */
 	protected $iterator;
 
@@ -13,11 +20,25 @@ class Timeline_Iterator implements \Iterator {
 	protected $current;
 
 	public function __construct( Recursive_Record_Iterator $iterator ) {
+
+		global $timestart;
+
+		$this->origin   = $timestart * 1000;
 		$this->iterator = $iterator;
 	}
 
+	/**
+	 * @return array
+	 */
 	public function current() {
-		return $this->current;
+
+		$data = [];
+
+		foreach ( $this->current as $record ) {
+			$data[] = $this->prepare( $record );
+		}
+
+		return $data;
 	}
 
 	public function next() {
@@ -33,6 +54,19 @@ class Timeline_Iterator implements \Iterator {
 	}
 
 	public function rewind() {
+		$this->total   = microtime( true ) * 1000 - $this->origin;
 		$this->current = $this->iterator;
 	}
+
+	protected function prepare( Record_Interface $record ) {
+
+		$data = [
+			'description' => $record->get_description(),
+			'category'    => $record->get_category(),
+			'offset'      => round( ( $record->get_origin() - $this->origin ) / $this->total * 100, 2 ),
+			'width'       => round( $record->get_duration() / $this->total * 100, 2 ),
+		];
+
+		return $data;
+	}
 }