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<?php
/**
 * PHP_CodeCoverage
 *
 * Copyright (c) 2009-2013, Sebastian Bergmann <sebastian@phpunit.de>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the name of Sebastian Bergmann nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @category   PHP
 * @package    CodeCoverage
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @copyright  2009-2013 Sebastian Bergmann <sebastian@phpunit.de>
 * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @link       http://github.com/sebastianbergmann/php-code-coverage
 * @since      File available since Release 1.1.0
 */

/**
 * Base class for PHP_CodeCoverage_Report_Node renderers.
 *
 * @category   PHP
 * @package    CodeCoverage
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @copyright  2009-2013 Sebastian Bergmann <sebastian@phpunit.de>
 * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @link       http://github.com/sebastianbergmann/php-code-coverage
 * @since      Class available since Release 1.1.0
 */
abstract class PHP_CodeCoverage_Report_HTML_Renderer
{
    /**
     * @var string
     */
    protected $templatePath;

    /**
     * @var string
     */
    protected $charset;

    /**
     * @var string
     */
    protected $generator;

    /**
     * @var string
     */
    protected $date;

    /**
     * @var integer
     */
    protected $lowUpperBound;

    /**
     * @var integer
     */
    protected $highLowerBound;

    /**
     * Constructor.
     *
     * @param string  $templatePath
     * @param string  $charset
     * @param string  $generator
     * @param string  $date
     * @param integer $lowUpperBound
     * @param integer $highLowerBound
     */
    public function __construct($templatePath, $charset, $generator, $date, $lowUpperBound, $highLowerBound)
    {
        $this->templatePath   = $templatePath;
        $this->charset        = $charset;
        $this->generator      = $generator;
        $this->date           = $date;
        $this->lowUpperBound  = $lowUpperBound;
        $this->highLowerBound = $highLowerBound;
    }

    /**
     * @param  Text_Template $template
     * @param  array         $data
     * @return string
     */
    protected function renderItemTemplate(Text_Template $template, array $data)
    {
        $numSeperator = '&nbsp;/&nbsp;';
        $classesBar    = '&nbsp;';
        $classesLevel  = 'None';
        $classesNumber = '&nbsp;';

        if (isset($data['numClasses']) && $data['numClasses'] > 0) {
            $classesLevel = $this->getColorLevel($data['testedClassesPercent']);

            $classesNumber = $data['numTestedClasses'] . $numSeperator .
                             $data['numClasses'];

            $classesBar = $this->getCoverageBar(
              $data['testedClassesPercent']
            );
        }

        $methodsBar    = '&nbsp;';
        $methodsLevel  = 'None';
        $methodsNumber = '&nbsp;';

        if ($data['numMethods'] > 0) {
            $methodsLevel = $this->getColorLevel($data['testedMethodsPercent']);

            $methodsNumber = $data['numTestedMethods'] . $numSeperator .
                             $data['numMethods'];

            $methodsBar = $this->getCoverageBar(
              $data['testedMethodsPercent']
            );
        }

        $linesBar    = '&nbsp;';
        $linesLevel  = 'None';
        $linesNumber = '&nbsp;';

        if ($data['numExecutableLines'] > 0) {
            $linesLevel = $this->getColorLevel($data['linesExecutedPercent']);

            $linesNumber = $data['numExecutedLines'] . $numSeperator .
                           $data['numExecutableLines'];

            $linesBar = $this->getCoverageBar(
              $data['linesExecutedPercent']
            );
        }

        $template->setVar(
          array(
            'icon' => isset($data['icon']) ? $data['icon'] : '',
            'crap' => isset($data['crap']) ? $data['crap'] : '',
            'name' => $data['name'],
            'lines_bar' => $linesBar,
            'lines_executed_percent' => $data['linesExecutedPercentAsString'],
            'lines_level' => $linesLevel,
            'lines_number' => $linesNumber,
            'methods_bar' => $methodsBar,
            'methods_tested_percent' => $data['testedMethodsPercentAsString'],
            'methods_level' => $methodsLevel,
            'methods_number' => $methodsNumber,
            'classes_bar' => $classesBar,
            'classes_tested_percent' => isset($data['testedClassesPercentAsString']) ? $data['testedClassesPercentAsString'] : '',
            'classes_level' => $classesLevel,
            'classes_number' => $classesNumber
          )
        );

        return $template->render();
    }

    /**
     * @param Text_Template                $template
     * @param PHP_CodeCoverage_Report_Node $node
     */
    protected function setCommonTemplateVariables(Text_Template $template, PHP_CodeCoverage_Report_Node $node)
    {
        $template->setVar(
          array(
            'id'               => $node->getId(),
            'full_path'        => $node->getPath(),
            'breadcrumbs'      => $this->getBreadcrumbs($node),
            'charset'          => $this->charset,
            'date'             => $this->date,
            'version'          => PHP_CodeCoverage_Version::id(),
            'php_version'      => PHP_VERSION,
            'generator'        => $this->generator,
            'low_upper_bound'  => $this->lowUpperBound,
            'high_lower_bound' => $this->highLowerBound
          )
        );
    }

    protected function getBreadcrumbs(PHP_CodeCoverage_Report_Node $node)
    {
        $breadcrumbs = '';

        $path = $node->getPathAsArray();

        foreach ($path as $step) {
            if ($step !== $node) {
                $breadcrumbs .= $this->getInactiveBreadcrumb($step);
            } else {
                $breadcrumbs .= $this->getActiveBreadcrumb(
                  $step,
                  $node instanceof PHP_CodeCoverage_Report_Node_Directory
                );
            }
        }

        return $breadcrumbs;
    }

    protected function getActiveBreadcrumb(PHP_CodeCoverage_Report_Node $node, $isDirectory)
    {
        $buffer = sprintf(
          '        <li class="active">%s</li>' . "\n",
          $node->getName()
        );

        if ($isDirectory) {
            $buffer .= sprintf(
              '        <li>(<a href="%s.dashboard.html">Dashboard</a>)</li>' . "\n",
              $node->getId()
            );
        }

        return $buffer;
    }

    protected function getInactiveBreadcrumb(PHP_CodeCoverage_Report_Node $node)
    {
        return sprintf(
          '        <li><a href="%s.html">%s</a> <span class="divider">/</span></li>' . "\n",
          $node->getId(),
          $node->getName()
        );
    }

    protected function getCoverageBar($percent)
    {
        $level = $this->getColorLevel($percent);

        $template = new Text_Template(
          $this->templatePath . 'coverage_bar.html'
        );

        $template->setVar(array('level' => $level, 'percent' => sprintf("%.2F", $percent)));

        return $template->render();
    }

    /**
     * @param  integer $percent
     * @return string
     */
    protected function getColorLevel($percent)
    {
        if ($percent < $this->lowUpperBound) {
            return 'danger';
        }

        else if ($percent >= $this->lowUpperBound &&
                 $percent <  $this->highLowerBound) {
            return 'warning';
        }

        else {
            return 'success';
        }
    }
}