<?php declare(strict_types=1);
/*
 * This file is part of phpunit/php-code-coverage.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\CodeCoverage\Node;

use function array_merge;
use function assert;
use function count;
use IteratorAggregate;
use RecursiveIteratorIterator;

/**
 * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
 *
 * @phpstan-import-type LinesOfCodeType from \SebastianBergmann\CodeCoverage\StaticAnalysis\FileAnalyser
 */
final class Directory extends AbstractNode implements IteratorAggregate
{
    /**
     * @var list<Directory|File>
     */
    private array $children = [];

    /**
     * @var list<Directory>
     */
    private array $directories = [];

    /**
     * @var list<File>
     */
    private array $files      = [];
    private ?array $classes   = null;
    private ?array $traits    = null;
    private ?array $functions = null;

    /**
     * @var null|LinesOfCodeType
     */
    private ?array $linesOfCode        = null;
    private int $numFiles              = -1;
    private int $numExecutableLines    = -1;
    private int $numExecutedLines      = -1;
    private int $numExecutableBranches = -1;
    private int $numExecutedBranches   = -1;
    private int $numExecutablePaths    = -1;
    private int $numExecutedPaths      = -1;
    private int $numClasses            = -1;
    private int $numTestedClasses      = -1;
    private int $numTraits             = -1;
    private int $numTestedTraits       = -1;
    private int $numMethods            = -1;
    private int $numTestedMethods      = -1;
    private int $numFunctions          = -1;
    private int $numTestedFunctions    = -1;

    public function count(): int
    {
        if ($this->numFiles === -1) {
            $this->numFiles = 0;

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

        return $this->numFiles;
    }

    public function getIterator(): RecursiveIteratorIterator
    {
        return new RecursiveIteratorIterator(
            new Iterator($this),
            RecursiveIteratorIterator::SELF_FIRST,
        );
    }

    public function addDirectory(string $name): self
    {
        $directory = new self($name, $this);

        assert($directory instanceof self);

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

        return $directory;
    }

    public function addFile(File $file): void
    {
        $this->children[] = $file;
        $this->files[]    = &$this->children[count($this->children) - 1];

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

    public function directories(): array
    {
        return $this->directories;
    }

    public function files(): array
    {
        return $this->files;
    }

    public function children(): array
    {
        return $this->children;
    }

    public function classes(): array
    {
        if ($this->classes === null) {
            $this->classes = [];

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

        return $this->classes;
    }

    public function traits(): array
    {
        if ($this->traits === null) {
            $this->traits = [];

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

        return $this->traits;
    }

    public function functions(): array
    {
        if ($this->functions === null) {
            $this->functions = [];

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

        return $this->functions;
    }

    /**
     * @return LinesOfCodeType
     */
    public function linesOfCode(): array
    {
        if ($this->linesOfCode === null) {
            $this->linesOfCode = [
                'linesOfCode'           => 0,
                'commentLinesOfCode'    => 0,
                'nonCommentLinesOfCode' => 0,
            ];

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

                $this->linesOfCode['linesOfCode']           += $childLinesOfCode['linesOfCode'];
                $this->linesOfCode['commentLinesOfCode']    += $childLinesOfCode['commentLinesOfCode'];
                $this->linesOfCode['nonCommentLinesOfCode'] += $childLinesOfCode['nonCommentLinesOfCode'];
            }
        }

        return $this->linesOfCode;
    }

    public function numberOfExecutableLines(): int
    {
        if ($this->numExecutableLines === -1) {
            $this->numExecutableLines = 0;

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

        return $this->numExecutableLines;
    }

    public function numberOfExecutedLines(): int
    {
        if ($this->numExecutedLines === -1) {
            $this->numExecutedLines = 0;

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

        return $this->numExecutedLines;
    }

    public function numberOfExecutableBranches(): int
    {
        if ($this->numExecutableBranches === -1) {
            $this->numExecutableBranches = 0;

            foreach ($this->children as $child) {
                $this->numExecutableBranches += $child->numberOfExecutableBranches();
            }
        }

        return $this->numExecutableBranches;
    }

    public function numberOfExecutedBranches(): int
    {
        if ($this->numExecutedBranches === -1) {
            $this->numExecutedBranches = 0;

            foreach ($this->children as $child) {
                $this->numExecutedBranches += $child->numberOfExecutedBranches();
            }
        }

        return $this->numExecutedBranches;
    }

    public function numberOfExecutablePaths(): int
    {
        if ($this->numExecutablePaths === -1) {
            $this->numExecutablePaths = 0;

            foreach ($this->children as $child) {
                $this->numExecutablePaths += $child->numberOfExecutablePaths();
            }
        }

        return $this->numExecutablePaths;
    }

    public function numberOfExecutedPaths(): int
    {
        if ($this->numExecutedPaths === -1) {
            $this->numExecutedPaths = 0;

            foreach ($this->children as $child) {
                $this->numExecutedPaths += $child->numberOfExecutedPaths();
            }
        }

        return $this->numExecutedPaths;
    }

    public function numberOfClasses(): int
    {
        if ($this->numClasses === -1) {
            $this->numClasses = 0;

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

        return $this->numClasses;
    }

    public function numberOfTestedClasses(): int
    {
        if ($this->numTestedClasses === -1) {
            $this->numTestedClasses = 0;

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

        return $this->numTestedClasses;
    }

    public function numberOfTraits(): int
    {
        if ($this->numTraits === -1) {
            $this->numTraits = 0;

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

        return $this->numTraits;
    }

    public function numberOfTestedTraits(): int
    {
        if ($this->numTestedTraits === -1) {
            $this->numTestedTraits = 0;

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

        return $this->numTestedTraits;
    }

    public function numberOfMethods(): int
    {
        if ($this->numMethods === -1) {
            $this->numMethods = 0;

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

        return $this->numMethods;
    }

    public function numberOfTestedMethods(): int
    {
        if ($this->numTestedMethods === -1) {
            $this->numTestedMethods = 0;

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

        return $this->numTestedMethods;
    }

    public function numberOfFunctions(): int
    {
        if ($this->numFunctions === -1) {
            $this->numFunctions = 0;

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

        return $this->numFunctions;
    }

    public function numberOfTestedFunctions(): int
    {
        if ($this->numTestedFunctions === -1) {
            $this->numTestedFunctions = 0;

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

        return $this->numTestedFunctions;
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

Mediabox