<?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
 */

/**
 * Represents a directory in the code coverage information tree.
 *
 * @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
 */
class PHP_CodeCoverage_Report_Node_Directory extends PHP_CodeCoverage_Report_Node implements IteratorAggregate
{
    /**
     * @var PHP_CodeCoverage_Report_Node[]
     */
    protected $children = array();

    /**
     * @var PHP_CodeCoverage_Report_Node_Directory[]
     */
    protected $directories = array();

    /**
     * @var PHP_CodeCoverage_Report_Node_File[]
     */
    protected $files = array();

    /**
     * @var array
     */
    protected $classes;

    /**
     * @var array
     */
    protected $traits;

    /**
     * @var array
     */
    protected $functions;

    /**
     * @var array
     */
    protected $linesOfCode = NULL;

    /**
     * @var integer
     */
    protected $numFiles = -1;

    /**
     * @var integer
     */
    protected $numExecutableLines = -1;

    /**
     * @var integer
     */
    protected $numExecutedLines = -1;

    /**
     * @var integer
     */
    protected $numClasses = -1;

    /**
     * @var integer
     */
    protected $numTestedClasses = -1;

    /**
     * @var integer
     */
    protected $numTraits = -1;

    /**
     * @var integer
     */
    protected $numTestedTraits = -1;

    /**
     * @var integer
     */
    protected $numMethods = -1;

    /**
     * @var integer
     */
    protected $numTestedMethods = -1;

    /**
     * @var integer
     */
    protected $numFunctions = -1;

    /**
     * @var integer
     */
    protected $numTestedFunctions = -1;

    /**
     * Returns the number of files in/under this node.
     *
     * @return integer
     */
    public function count()
    {
        if ($this->numFiles == -1) {
            $this->numFiles = 0;

            foreach ($this->children as $child) {
                $this->numFiles += count($child);
            }
        }

        return $this->numFiles;
    }

    /**
     * Returns an iterator for this node.
     *
     * @return RecursiveIteratorIterator
     */
    public function getIterator()
    {
        return new RecursiveIteratorIterator(
          new PHP_CodeCoverage_Report_Node_Iterator($this),
          RecursiveIteratorIterator::SELF_FIRST
        );
    }

    /**
     * Adds a new directory.
     *
     * @param  string $name
     * @return PHP_CodeCoverage_Report_Node_Directory
     */
    public function addDirectory($name)
    {
        $directory = new PHP_CodeCoverage_Report_Node_Directory($name, $this);

        $this->children[]    = $directory;
        $this->directories[] = &$this->children[count($this->children) - 1];

        return $directory;
    }

    /**
     * Adds a new file.
     *
     * @param  string  $name
     * @param  array   $coverageData
     * @param  array   $testData
     * @param  boolean $cacheTokens
     * @return PHP_CodeCoverage_Report_Node_File
     * @throws PHP_CodeCoverage_Exception
     */
    public function addFile($name, array $coverageData, array $testData, $cacheTokens)
    {
        $file = new PHP_CodeCoverage_Report_Node_File(
          $name, $this, $coverageData, $testData, $cacheTokens
        );

        $this->children[] = $file;
        $this->files[]    = &$this->children[count($this->children) - 1];

        $this->numExecutableLines = -1;
        $this->numExecutedLines   = -1;

        return $file;
    }

    /**
     * Returns the directories in this directory.
     *
     * @return array
     */
    public function getDirectories()
    {
        return $this->directories;
    }

    /**
     * Returns the files in this directory.
     *
     * @return array
     */
    public function getFiles()
    {
        return $this->files;
    }

    /**
     * Returns the child nodes of this node.
     *
     * @return array
     */
    public function getChildNodes()
    {
        return $this->children;
    }

    /**
     * Returns the classes of this node.
     *
     * @return array
     */
    public function getClasses()
    {
        if ($this->classes === NULL) {
            $this->classes = array();

            foreach ($this->children as $child) {
                $this->classes = array_merge(
                  $this->classes, $child->getClasses()
                );
            }
        }

        return $this->classes;
    }

    /**
     * Returns the traits of this node.
     *
     * @return array
     */
    public function getTraits()
    {
        if ($this->traits === NULL) {
            $this->traits = array();

            foreach ($this->children as $child) {
                $this->traits = array_merge(
                  $this->traits, $child->getTraits()
                );
            }
        }

        return $this->traits;
    }

    /**
     * Returns the functions of this node.
     *
     * @return array
     */
    public function getFunctions()
    {
        if ($this->functions === NULL) {
            $this->functions = array();

            foreach ($this->children as $child) {
                $this->functions = array_merge(
                  $this->functions, $child->getFunctions()
                );
            }
        }

        return $this->functions;
    }

    /**
     * Returns the LOC/CLOC/NCLOC of this node.
     *
     * @return array
     */
    public function getLinesOfCode()
    {
        if ($this->linesOfCode === NULL) {
            $this->linesOfCode = array('loc' => 0, 'cloc' => 0, 'ncloc' => 0);

            foreach ($this->children as $child) {
                $linesOfCode = $child->getLinesOfCode();

                $this->linesOfCode['loc']   += $linesOfCode['loc'];
                $this->linesOfCode['cloc']  += $linesOfCode['cloc'];
                $this->linesOfCode['ncloc'] += $linesOfCode['ncloc'];
            }
        }

        return $this->linesOfCode;
    }

    /**
     * Returns the number of executable lines.
     *
     * @return integer
     */
    public function getNumExecutableLines()
    {
        if ($this->numExecutableLines == -1) {
            $this->numExecutableLines = 0;

            foreach ($this->children as $child) {
                $this->numExecutableLines += $child->getNumExecutableLines();
            }
        }

        return $this->numExecutableLines;
    }

    /**
     * Returns the number of executed lines.
     *
     * @return integer
     */
    public function getNumExecutedLines()
    {
        if ($this->numExecutedLines == -1) {
            $this->numExecutedLines = 0;

            foreach ($this->children as $child) {
                $this->numExecutedLines += $child->getNumExecutedLines();
            }
        }

        return $this->numExecutedLines;
    }

    /**
     * Returns the number of classes.
     *
     * @return integer
     */
    public function getNumClasses()
    {
        if ($this->numClasses == -1) {
            $this->numClasses = 0;

            foreach ($this->children as $child) {
                $this->numClasses += $child->getNumClasses();
            }
        }

        return $this->numClasses;
    }

    /**
     * Returns the number of tested classes.
     *
     * @return integer
     */
    public function getNumTestedClasses()
    {
        if ($this->numTestedClasses == -1) {
            $this->numTestedClasses = 0;

            foreach ($this->children as $child) {
                $this->numTestedClasses += $child->getNumTestedClasses();
            }
        }

        return $this->numTestedClasses;
    }

    /**
     * Returns the number of traits.
     *
     * @return integer
     */
    public function getNumTraits()
    {
        if ($this->numTraits == -1) {
            $this->numTraits = 0;

            foreach ($this->children as $child) {
                $this->numTraits += $child->getNumTraits();
            }
        }

        return $this->numTraits;
    }

    /**
     * Returns the number of tested traits.
     *
     * @return integer
     */
    public function getNumTestedTraits()
    {
        if ($this->numTestedTraits == -1) {
            $this->numTestedTraits = 0;

            foreach ($this->children as $child) {
                $this->numTestedTraits += $child->getNumTestedTraits();
            }
        }

        return $this->numTestedTraits;
    }

    /**
     * Returns the number of methods.
     *
     * @return integer
     */
    public function getNumMethods()
    {
        if ($this->numMethods == -1) {
            $this->numMethods = 0;

            foreach ($this->children as $child) {
                $this->numMethods += $child->getNumMethods();
            }
        }

        return $this->numMethods;
    }

    /**
     * Returns the number of tested methods.
     *
     * @return integer
     */
    public function getNumTestedMethods()
    {
        if ($this->numTestedMethods == -1) {
            $this->numTestedMethods = 0;

            foreach ($this->children as $child) {
                $this->numTestedMethods += $child->getNumTestedMethods();
            }
        }

        return $this->numTestedMethods;
    }

    /**
     * Returns the number of functions.
     *
     * @return integer
     */
    public function getNumFunctions()
    {
        if ($this->numFunctions == -1) {
            $this->numFunctions = 0;

            foreach ($this->children as $child) {
                $this->numFunctions += $child->getNumFunctions();
            }
        }

        return $this->numFunctions;
    }

    /**
     * Returns the number of tested functions.
     *
     * @return integer
     */
    public function getNumTestedFunctions()
    {
        if ($this->numTestedFunctions == -1) {
            $this->numTestedFunctions = 0;

            foreach ($this->children as $child) {
                $this->numTestedFunctions += $child->getNumTestedFunctions();
            }
        }

        return $this->numTestedFunctions;
    }
}
