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<?php namespace Clockwork\Request\Timeline;
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// Data structure representing a single timeline event with fluent API
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class Event
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{
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// Event description
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public $description;
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// Unique event name
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public $name;
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// Start time
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public $start;
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// End time
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public $end;
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// Color (blue, red, green, purple, grey)
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public $color;
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// Additional event data
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public $data;
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public function __construct($description, $data = [])
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{
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$this->description = $description;
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$this->name = isset($data['name']) ? $data['name'] : $description;
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$this->start = isset($data['start']) ? $data['start'] : null;
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$this->end = isset($data['end']) ? $data['end'] : null;
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$this->color = isset($data['color']) ? $data['color'] : null;
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$this->data = isset($data['data']) ? $data['data'] : null;
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}
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// Begin the event at current time
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public function begin()
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{
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$this->start = microtime(true);
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return $this;
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}
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// End the event at current time
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public function end()
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{
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$this->end = microtime(true);
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return $this;
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}
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// Begin the event, execute the passed in closure and end the event, returns the closure return value
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public function run(\Closure $closure)
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{
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$this->begin();
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try {
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return $closure();
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} finally {
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$this->end();
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}
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}
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// Set or retrieve event duration (in ms), event can be defined with both start and end time or just a single time and duration
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public function duration($duration = null)
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{
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if (! $duration) return ($this->start && $this->end) ? ($this->end - $this->start) * 1000 : 0;
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if ($this->start) $this->end = $this->start + $duration / 1000;
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if ($this->end) $this->start = $this->end - $duration / 1000;
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return $this;
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}
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// Finalize the event, ends the event, fills in start time if empty and limits the start and end time
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public function finalize($start = null, $end = null)
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{
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$end = $end ?: microtime(true);
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$this->start = $this->start ?: $start;
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$this->end = $this->end ?: $end;
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if ($this->start < $start) $this->start = $start;
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if ($this->end > $end) $this->end = $end;
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}
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// Fluent API
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public function __call($method, $parameters)
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{
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if (! count($parameters)) return $this->$method;
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$this->$method = $parameters[0];
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return $this;
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}
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// Return an array representation of the event
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public function toArray()
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{
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return [
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'description' => $this->description,
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'start' => $this->start,
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'end' => $this->end,
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'duration' => $this->duration(),
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'color' => $this->color,
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'data' => $this->data
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];
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}
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}
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