<?php namespace CodeIgniter\Debug\Toolbar\Collectors;

/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014-2019 British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package    CodeIgniter
 * @author     CodeIgniter Dev Team
 * @copyright  2014-2019 British Columbia Institute of Technology (https://bcit.ca/)
 * @license    https://opensource.org/licenses/MIT	MIT License
 * @link       https://codeigniter.com
 * @since      Version 4.0.0
 * @filesource
 */

use CodeIgniter\Config\Services;

/**
 * Loags collector
 */
class Logs extends BaseCollector
{

	/**
	 * Whether this collector has data that can
	 * be displayed in the Timeline.
	 *
	 * @var boolean
	 */
	protected $hasTimeline = false;

	/**
	 * Whether this collector needs to display
	 * content in a tab or not.
	 *
	 * @var boolean
	 */
	protected $hasTabContent = true;

	/**
	 * The 'title' of this Collector.
	 * Used to name things in the toolbar HTML.
	 *
	 * @var string
	 */
	protected $title = 'Logs';

	/**
	 * Our collected data.
	 *
	 * @var array
	 */
	protected $data;

	//--------------------------------------------------------------------

	/**
	 * Returns the data of this collector to be formatted in the toolbar
	 *
	 * @return array
	 */
	public function display(): array
	{
		return [
			'logs' => $this->collectLogs(),
		];
	}

	//--------------------------------------------------------------------

	/**
	 * Does this collector actually have any data to display?
	 */
	public function isEmpty()
	{
		$this->collectLogs();

		return empty($this->data);
	}

	//--------------------------------------------------------------------

	/**
	 * Display the icon.
	 *
	 * Icon from https://icons8.com - 1em package
	 *
	 * @return string
	 */
	public function icon(): string
	{
		return 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACYSURBVEhLYxgFJIHU1FSjtLS0i0D8AYj7gEKMEBkqAaAFF4D4ERCvAFrwH4gDoFIMKSkpFkB+OTEYqgUTACXfA/GqjIwMQyD9H2hRHlQKJFcBEiMGQ7VgAqCBvUgK32dmZspCpagGGNPT0/1BLqeF4bQHQJePpiIwhmrBBEADR1MRfgB0+WgqAmOoFkwANHA0FY0CUgEDAwCQ0PUpNB3kqwAAAABJRU5ErkJggg==';
	}

	//--------------------------------------------------------------------

	/**
	 * Ensures the data has been collected.
	 */
	protected function collectLogs()
	{
		if (! is_null($this->data))
		{
			return $this->data;
		}

		return $this->data = Services::logger(true)->logCache ?? [];
	}

	//--------------------------------------------------------------------
}