<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to hide@address.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Log
 * @subpackage Writer
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */

/**
 * Writes log messages to the Firebug Console via FirePHP.
 *
 * @category   Zend
 * @package    Zend_Log
 * @subpackage Writer
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Log_Writer_apiFirebug extends Zend_Log_Writer_Abstract {

    /**
     * Maps logging priorities to logging display styles
     * @var array
     */
    protected $_priorityStyles = array( Zend_Log::EMERG => 'ERROR',
                                        Zend_Log::ALERT => 'ERROR',
                                        Zend_Log::CRIT => 'ERROR',
                                        Zend_Log::ERR => 'ERROR',
                                        Zend_Log::WARN => 'WARN',
                                        Zend_Log::NOTICE => 'INFO',
                                        Zend_Log::INFO => 'INFO',
                                        Zend_Log::DEBUG => 'LOG',
                                      );

    /**
     * The default logging style for un-mapped priorities
     * @var string
     */
    protected $_defaultPriorityStyle = 'LOG';

    /**
     * Flag indicating whether the log writer is enabled
     * @var boolean
     */
    protected $_enabled = true;

    /**
     * Class constructor
     */
    public function __construct() {
        if (php_sapi_name() == 'cli') {
            $this->setEnabled(false);
        }
    }

    /**
     * Enable or disable the log writer.
     *
     * @param boolean $enabled Set to TRUE to enable the log writer
     * @return boolean The previous value.
     */
    public function setEnabled($enabled) {
        $previous = $this->_enabled;
        $this->_enabled = $enabled;
        return $previous;
    }

    /**
     * Determine if the log writer is enabled.
     *
     * @return boolean Returns TRUE if the log writer is enabled.
     */
    public function getEnabled() {
        return $this->_enabled;
    }

    /**
     * Set the default display style for user-defined priorities
     *
     * @param string $style The default log display style
     * @return string Returns previous default log display style
     */
    public function setDefaultPriorityStyle($style) {
        $previous = $this->_defaultPriorityStyle;
        $this->_defaultPriorityStyle = $style;
        return $previous;
    }

    /**
     * Get the default display style for user-defined priorities
     *
     * @return string Returns the default log display style
     */
    public function getDefaultPriorityStyle() {
        return $this->_defaultPriorityStyle;
    }

    /**
     * Set a display style for a logging priority
     *
     * @param int $priority The logging priority
     * @param string $style The logging display style
     * @return string|boolean The previous logging display style if defined or TRUE otherwise
     */
    public function setPriorityStyle($priority, $style) {
        $previous = true;
        if (array_key_exists($priority, $this->_priorityStyles)) {
            $previous = $this->_priorityStyles[$priority];
        }
        $this->_priorityStyles[$priority] = $style;
        return $previous;
    }

    /**
     * Get a display style for a logging priority
     *
     * @param int $priority The logging priority
     * @return string|boolean The logging display style if defined or FALSE otherwise
     */
    public function getPriorityStyle($priority) {
        if (array_key_exists($priority, $this->_priorityStyles)) {
            return $this->_priorityStyles[$priority];
        }
        return false;
    }

    /**
     * Formatting is not possible on this writer
     *
     * @return void
     */
    public function setFormatter($formatter) {
        require_once 'Zend/Log/Exception.php';
        throw new Zend_Log_Exception(get_class() . ' does not support formatting');
    }

    /**
     * Log a message to the Firebug Console.
     *
     * @param array $event The event data
     * @return void
     */
    protected function _write($event) {
        if (! $this->getEnabled()) {
            return;
        }

        if (array_key_exists($event['priority'], $this->_priorityStyles)) {
            $type = $this->_priorityStyles[$event['priority']];
        } else {
            $type = $this->_defaultPriorityStyle;
        }
        self::log($event['message'], $this->_priorityStyles[$event['priority']]);

    }

    public static function log() {
        $args = func_get_args();
        $instance = FirePHP::getInstance(true);
        call_user_func_array(array($instance, 'fb'), $args);
    }
}