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<?php
/**
 * PHP_CodeCoverage
 *
 * Copyright (c) 2009-2014, 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  2009-2014 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
 */

// @codeCoverageIgnoreStart
if (!defined('T_TRAIT')) {
    define('T_TRAIT', 1001);
}

if (!defined('T_INSTEADOF')) {
    define('T_INSTEADOF', 1002);
}

if (!defined('T_CALLABLE')) {
    define('T_CALLABLE', 1003);
}
// @codeCoverageIgnoreEnd

/**
 * Renders a PHP_CodeCoverage_Report_Node_File node.
 *
 * @category   PHP
 * @package    CodeCoverage
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @copyright  2009-2014 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
 */
class PHP_CodeCoverage_Report_HTML_Renderer_File extends PHP_CodeCoverage_Report_HTML_Renderer
{
    /**
     * @var boolean
     */
    protected $highlight;

    /**
     * Constructor.
     *
     * @param string  $templatePath
     * @param string  $charset
     * @param string  $generator
     * @param string  $date
     * @param integer $lowUpperBound
     * @param integer $highLowerBound
     * @param boolean $highlight
     */
    public function __construct($templatePath, $charset, $generator, $date, $lowUpperBound, $highLowerBound, $highlight)
    {
        parent::__construct(
          $templatePath,
          $charset,
          $generator,
          $date,
          $lowUpperBound,
          $highLowerBound
        );

        $this->highlight = $highlight;
    }

    /**
     * @param PHP_CodeCoverage_Report_Node_File $node
     * @param string                            $file
     */
    public function render(PHP_CodeCoverage_Report_Node_File $node, $file)
    {
        $template = new Text_Template($this->templatePath . 'file.html', '{{', '}}');

        $template->setVar(
          array(
            'items' => $this->renderItems($node),
            'lines' => $this->renderSource($node)
          )
        );

        $this->setCommonTemplateVariables($template, $node);

        $template->renderTo($file);
    }

    /**
     * @param  PHP_CodeCoverage_Report_Node_File $node
     * @return string
     */
    protected function renderItems(PHP_CodeCoverage_Report_Node_File $node)
    {
        $template = new Text_Template($this->templatePath . 'file_item.html', '{{', '}}');

        $methodItemTemplate = new Text_Template(
          $this->templatePath . 'method_item.html', '{{', '}}'
        );

        $items = $this->renderItemTemplate(
          $template,
          array(
            'name'                         => 'Total',
            'numClasses'                   => $node->getNumClassesAndTraits(),
            'numTestedClasses'             => $node->getNumTestedClassesAndTraits(),
            'numMethods'                   => $node->getNumMethods(),
            'numTestedMethods'             => $node->getNumTestedMethods(),
            'linesExecutedPercent'         => $node->getLineExecutedPercent(FALSE),
            'linesExecutedPercentAsString' => $node->getLineExecutedPercent(),
            'numExecutedLines'             => $node->getNumExecutedLines(),
            'numExecutableLines'           => $node->getNumExecutableLines(),
            'testedMethodsPercent'         => $node->getTestedMethodsPercent(FALSE),
            'testedMethodsPercentAsString' => $node->getTestedMethodsPercent(),
            'testedClassesPercent'         => $node->getTestedClassesAndTraitsPercent(FALSE),
            'testedClassesPercentAsString' => $node->getTestedClassesAndTraitsPercent(),
            'crap'                         => '<abbr title="Change Risk Anti-Patterns (CRAP) Index">CRAP</abbr>'
          )
        );

        $items .= $this->renderFunctionItems(
          $node->getFunctions(), $methodItemTemplate
        );

        $items .= $this->renderTraitOrClassItems(
          $node->getTraits(), $template, $methodItemTemplate
        );

        $items .= $this->renderTraitOrClassItems(
          $node->getClasses(), $template, $methodItemTemplate
        );

        return $items;
    }

    /**
     * @param  array         $items
     * @param  Text_Template $template
     * @return string
     */
    protected function renderTraitOrClassItems(array $items, Text_Template $template, Text_Template $methodItemTemplate)
    {
        if (empty($items)) {
            return '';
        }

        $buffer = '';

        foreach ($items as $name => $item) {
            $numMethods       = count($item['methods']);
            $numTestedMethods = 0;

            foreach ($item['methods'] as $method) {
                if ($method['executedLines'] == $method['executableLines']) {
                    $numTestedMethods++;
                }
            }

            $buffer .= $this->renderItemTemplate(
              $template,
              array(
                'name'                         => $name,
                'numClasses'                   => 1,
                'numTestedClasses'             => $numTestedMethods == $numMethods ? 1 : 0,
                'numMethods'                   => $numMethods,
                'numTestedMethods'             => $numTestedMethods,
                'linesExecutedPercent'         => PHP_CodeCoverage_Util::percent(
                                                    $item['executedLines'],
                                                    $item['executableLines'],
                                                    FALSE
                                                  ),
                'linesExecutedPercentAsString' => PHP_CodeCoverage_Util::percent(
                                                    $item['executedLines'],
                                                    $item['executableLines'],
                                                    TRUE
                                                  ),
                'numExecutedLines'             => $item['executedLines'],
                'numExecutableLines'           => $item['executableLines'],
                'testedMethodsPercent'         => PHP_CodeCoverage_Util::percent(
                                                    $numTestedMethods,
                                                    $numMethods,
                                                    FALSE
                                                  ),
                'testedMethodsPercentAsString' => PHP_CodeCoverage_Util::percent(
                                                    $numTestedMethods,
                                                    $numMethods,
                                                    TRUE
                                                  ),
                'testedClassesPercent'         => PHP_CodeCoverage_Util::percent(
                                                    $numTestedMethods == $numMethods ? 1 : 0,
                                                    1,
                                                    FALSE
                                                  ),
                'testedClassesPercentAsString' => PHP_CodeCoverage_Util::percent(
                                                    $numTestedMethods == $numMethods ? 1 : 0,
                                                    1,
                                                    TRUE
                                                  ),
                'crap'                         => $item['crap']
              )
            );

            foreach ($item['methods'] as $method) {
                $buffer .= $this->renderFunctionOrMethodItem(
                  $methodItemTemplate, $method, '&nbsp;'
                );
            }
        }

        return $buffer;
    }

    /**
     * @param  array         $functions
     * @param  Text_Template $template
     * @return string
     */
    protected function renderFunctionItems(array $functions, Text_Template $template)
    {
        if (empty($functions)) {
            return '';
        }

        $buffer = '';

        foreach ($functions as $function) {
            $buffer .= $this->renderFunctionOrMethodItem(
              $template, $function
            );
        }

        return $buffer;
    }

    /**
     * @param  Text_Template $template
     * @return string
     */
    protected function renderFunctionOrMethodItem(Text_Template $template, array $item, $indent = '')
    {
        $numTestedItems = $item['executedLines'] == $item['executableLines'] ? 1 : 0;

        return $this->renderItemTemplate(
          $template,
          array(
            'name'                         => sprintf(
                                                '%s<a href="#%d">%s</a>',
                                                $indent,
                                                $item['startLine'],
                                                htmlspecialchars($item['signature'])
                                              ),
            'numMethods'                   => 1,
            'numTestedMethods'             => $numTestedItems,
            'linesExecutedPercent'         => PHP_CodeCoverage_Util::percent(
                                                $item['executedLines'],
                                                $item['executableLines'],
                                                FALSE
                                              ),
            'linesExecutedPercentAsString' => PHP_CodeCoverage_Util::percent(
                                                $item['executedLines'],
                                                $item['executableLines'],
                                                TRUE
                                              ),
            'numExecutedLines'             => $item['executedLines'],
            'numExecutableLines'           => $item['executableLines'],
            'testedMethodsPercent'         => PHP_CodeCoverage_Util::percent(
                                                $numTestedItems,
                                                1,
                                                FALSE
                                              ),
            'testedMethodsPercentAsString' => PHP_CodeCoverage_Util::percent(
                                                $numTestedItems,
                                                1,
                                                TRUE
                                              ),
            'crap'                         => $item['crap']
          )
        );
    }

    /**
     * @param  PHP_CodeCoverage_Report_Node_File $node
     * @return string
     */
    protected function renderSource(PHP_CodeCoverage_Report_Node_File $node)
    {
        $coverageData = $node->getCoverageData();
        $ignoredLines = $node->getIgnoredLines();
        $testData     = $node->getTestData();
        $codeLines    = $this->loadFile($node->getPath());
        $lines        = '';
        $i            = 1;

        foreach ($codeLines as $line) {
            $numTests       = '';
            $trClass        = '';
            $popoverContent = '';
            $popoverTitle   = '';

            if (!isset($ignoredLines[$i]) && array_key_exists($i, $coverageData)) {
                $numTests = count($coverageData[$i]);

                if ($coverageData[$i] === NULL) {
                    $trClass = ' class="warning"';
                }

                else if ($numTests == 0) {
                    $trClass = ' class="danger"';
                }

                else {
                    $trClass        = ' class="success popin"';
                    $popoverContent = '<ul>';

                    if ($numTests > 1) {
                        $popoverTitle = $numTests . ' tests cover line ' . $i;
                    } else {
                        $popoverTitle = '1 test covers line ' . $i;
                    }

                    foreach ($coverageData[$i] as $test) {
                        switch ($testData[$test]) {
                            case 0: {
                                $testCSS = ' class="success"';
                            }
                            break;

                            case 1:
                            case 2: {
                                $testCSS = ' class="warning"';
                            }
                            break;

                            case 3: {
                                $testCSS = ' class="danger"';
                            }
                            break;

                            case 4: {
                                $testCSS = ' class="danger"';
                            }
                            break;

                            default: {
                                $testCSS = '';
                            }
                        }

                        $popoverContent .= sprintf(
                          '<li%s>%s</li>',

                          $testCSS,
                          htmlspecialchars($test)
                        );
                    }

                    $popoverContent .= '</ul>';
                }
            }

            if (!empty($popoverTitle)) {
                $popover = sprintf(
                  ' data-title="%s" data-content="%s" data-placement="bottom" data-html="true"',
                  $popoverTitle,
                  htmlspecialchars($popoverContent)
                );
            } else {
                $popover = '';
            }

            $lines .= sprintf(
              '     <tr%s%s><td><div align="right"><a name="%d"></a><a href="#%d">%d</a></div></td><td class="codeLine">%s</td></tr>' . "\n",
              $trClass,
              $popover,
              $i,
              $i,
              $i,
              !$this->highlight ? htmlspecialchars($line) : $line
            );

            $i++;
        }

        return $lines;
    }

    /**
     * @param  string $file
     * @return array
     */
    protected function loadFile($file)
    {
        $buffer = file_get_contents($file);
        $lines  = explode("\n", str_replace("\t", '    ', $buffer));
        $result = array();

        if (count($lines) == 0) {
            return $result;
        }

        $lines = array_map('rtrim', $lines);

        if (!$this->highlight) {
            unset($lines[count($lines)-1]);
            return $lines;
        }

        $tokens     = token_get_all($buffer);
        $stringFlag = FALSE;
        $i          = 0;
        $result[$i] = '';

        foreach ($tokens as $j => $token) {
            if (is_string($token)) {
                if ($token === '"' && $tokens[$j - 1] !== '\\') {
                    $result[$i] .= sprintf(
                      '<span class="string">%s</span>',

                      htmlspecialchars($token)
                    );

                    $stringFlag = !$stringFlag;
                } else {
                    $result[$i] .= sprintf(
                      '<span class="keyword">%s</span>',

                      htmlspecialchars($token)
                    );
                }

                continue;
            }

            list ($token, $value) = $token;

            $value = str_replace(
              array("\t", ' '),
              array('&nbsp;&nbsp;&nbsp;&nbsp;', '&nbsp;'),
              htmlspecialchars($value)
            );

            if ($value === "\n") {
                $result[++$i] = '';
            } else {
                $lines = explode("\n", $value);

                foreach ($lines as $jj => $line) {
                    $line = trim($line);

                    if ($line !== '') {
                        if ($stringFlag) {
                            $colour = 'string';
                        } else {
                            switch ($token) {
                                case T_INLINE_HTML: {
                                    $colour = 'html';
                                }
                                break;

                                case T_COMMENT:
                                case T_DOC_COMMENT: {
                                    $colour = 'comment';
                                }
                                break;

                                case T_ABSTRACT:
                                case T_ARRAY:
                                case T_AS:
                                case T_BREAK:
                                case T_CALLABLE:
                                case T_CASE:
                                case T_CATCH:
                                case T_CLASS:
                                case T_CLONE:
                                case T_CONTINUE:
                                case T_DEFAULT:
                                case T_ECHO:
                                case T_ELSE:
                                case T_ELSEIF:
                                case T_EMPTY:
                                case T_ENDDECLARE:
                                case T_ENDFOR:
                                case T_ENDFOREACH:
                                case T_ENDIF:
                                case T_ENDSWITCH:
                                case T_ENDWHILE:
                                case T_EXIT:
                                case T_EXTENDS:
                                case T_FINAL:
                                case T_FOREACH:
                                case T_FUNCTION:
                                case T_GLOBAL:
                                case T_IF:
                                case T_IMPLEMENTS:
                                case T_INCLUDE:
                                case T_INCLUDE_ONCE:
                                case T_INSTANCEOF:
                                case T_INSTEADOF:
                                case T_INTERFACE:
                                case T_ISSET:
                                case T_LOGICAL_AND:
                                case T_LOGICAL_OR:
                                case T_LOGICAL_XOR:
                                case T_NAMESPACE:
                                case T_NEW:
                                case T_PRIVATE:
                                case T_PROTECTED:
                                case T_PUBLIC:
                                case T_REQUIRE:
                                case T_REQUIRE_ONCE:
                                case T_RETURN:
                                case T_STATIC:
                                case T_THROW:
                                case T_TRAIT:
                                case T_TRY:
                                case T_UNSET:
                                case T_USE:
                                case T_VAR:
                                case T_WHILE: {
                                    $colour = 'keyword';
                                }
                                break;

                                default: {
                                    $colour = 'default';
                                }
                            }
                        }

                        $result[$i] .= sprintf(
                          '<span class="%s">%s</span>',

                          $colour,
                          $line
                        );
                    }

                    if (isset($lines[$jj + 1])) {
                        $result[++$i] = '';
                    }
                }
            }
        }

        unset($result[count($result)-1]);

        return $result;
    }
}