<?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\Data;

use function array_diff;
use function array_diff_key;
use function array_flip;
use function array_intersect;
use function array_intersect_key;
use function count;
use function explode;
use function file_get_contents;
use function in_array;
use function is_file;
use function preg_replace;
use function range;
use function str_ends_with;
use function str_starts_with;
use function trim;
use SebastianBergmann\CodeCoverage\Driver\Driver;
use SebastianBergmann\CodeCoverage\StaticAnalysis\FileAnalyser;

/**
 * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
 *
 * @phpstan-import-type XdebugFunctionsCoverageType from \SebastianBergmann\CodeCoverage\Driver\XdebugDriver
 * @phpstan-import-type XdebugCodeCoverageWithoutPathCoverageType from \SebastianBergmann\CodeCoverage\Driver\XdebugDriver
 * @phpstan-import-type XdebugCodeCoverageWithPathCoverageType from \SebastianBergmann\CodeCoverage\Driver\XdebugDriver
 */
final class RawCodeCoverageData
{
    /**
     * @var array<string, array<int>>
     */
    private static array $emptyLineCache = [];

    /**
     * @var XdebugCodeCoverageWithoutPathCoverageType
     */
    private array $lineCoverage;

    /**
     * @var array<string, XdebugFunctionsCoverageType>
     */
    private array $functionCoverage;

    /**
     * @param XdebugCodeCoverageWithoutPathCoverageType $rawCoverage
     */
    public static function fromXdebugWithoutPathCoverage(array $rawCoverage): self
    {
        return new self($rawCoverage, []);
    }

    /**
     * @param XdebugCodeCoverageWithPathCoverageType $rawCoverage
     */
    public static function fromXdebugWithPathCoverage(array $rawCoverage): self
    {
        $lineCoverage     = [];
        $functionCoverage = [];

        foreach ($rawCoverage as $file => $fileCoverageData) {
            // Xdebug annotates the function name of traits, strip that off
            foreach ($fileCoverageData['functions'] as $existingKey => $data) {
                if (str_ends_with($existingKey, '}') && !str_starts_with($existingKey, '{')) { // don't want to catch {main}
                    $newKey                                 = preg_replace('/\{.*}$/', '', $existingKey);
                    $fileCoverageData['functions'][$newKey] = $data;
                    unset($fileCoverageData['functions'][$existingKey]);
                }
            }

            $lineCoverage[$file]     = $fileCoverageData['lines'];
            $functionCoverage[$file] = $fileCoverageData['functions'];
        }

        return new self($lineCoverage, $functionCoverage);
    }

    public static function fromUncoveredFile(string $filename, FileAnalyser $analyser): self
    {
        $lineCoverage = [];

        foreach ($analyser->executableLinesIn($filename) as $line => $branch) {
            $lineCoverage[$line] = Driver::LINE_NOT_EXECUTED;
        }

        return new self([$filename => $lineCoverage], []);
    }

    /**
     * @param XdebugCodeCoverageWithoutPathCoverageType  $lineCoverage
     * @param array<string, XdebugFunctionsCoverageType> $functionCoverage
     */
    private function __construct(array $lineCoverage, array $functionCoverage)
    {
        $this->lineCoverage     = $lineCoverage;
        $this->functionCoverage = $functionCoverage;

        $this->skipEmptyLines();
    }

    public function clear(): void
    {
        $this->lineCoverage = $this->functionCoverage = [];
    }

    /**
     * @return XdebugCodeCoverageWithoutPathCoverageType
     */
    public function lineCoverage(): array
    {
        return $this->lineCoverage;
    }

    /**
     * @return array<string, XdebugFunctionsCoverageType>
     */
    public function functionCoverage(): array
    {
        return $this->functionCoverage;
    }

    public function removeCoverageDataForFile(string $filename): void
    {
        unset($this->lineCoverage[$filename], $this->functionCoverage[$filename]);
    }

    /**
     * @param int[] $lines
     */
    public function keepLineCoverageDataOnlyForLines(string $filename, array $lines): void
    {
        if (!isset($this->lineCoverage[$filename])) {
            return;
        }

        $this->lineCoverage[$filename] = array_intersect_key(
            $this->lineCoverage[$filename],
            array_flip($lines),
        );
    }

    /**
     * @param int[] $linesToBranchMap
     */
    public function markExecutableLineByBranch(string $filename, array $linesToBranchMap): void
    {
        if (!isset($this->lineCoverage[$filename])) {
            return;
        }

        $linesByBranch = [];

        foreach ($linesToBranchMap as $line => $branch) {
            $linesByBranch[$branch][] = $line;
        }

        foreach ($this->lineCoverage[$filename] as $line => $lineStatus) {
            if (!isset($linesToBranchMap[$line])) {
                continue;
            }

            $branch = $linesToBranchMap[$line];

            if (!isset($linesByBranch[$branch])) {
                continue;
            }

            foreach ($linesByBranch[$branch] as $lineInBranch) {
                $this->lineCoverage[$filename][$lineInBranch] = $lineStatus;
            }

            if (Driver::LINE_EXECUTED === $lineStatus) {
                unset($linesByBranch[$branch]);
            }
        }
    }

    /**
     * @param int[] $lines
     */
    public function keepFunctionCoverageDataOnlyForLines(string $filename, array $lines): void
    {
        if (!isset($this->functionCoverage[$filename])) {
            return;
        }

        foreach ($this->functionCoverage[$filename] as $functionName => $functionData) {
            foreach ($functionData['branches'] as $branchId => $branch) {
                if (count(array_diff(range($branch['line_start'], $branch['line_end']), $lines)) > 0) {
                    unset($this->functionCoverage[$filename][$functionName]['branches'][$branchId]);

                    foreach ($functionData['paths'] as $pathId => $path) {
                        if (in_array($branchId, $path['path'], true)) {
                            unset($this->functionCoverage[$filename][$functionName]['paths'][$pathId]);
                        }
                    }
                }
            }
        }
    }

    /**
     * @param int[] $lines
     */
    public function removeCoverageDataForLines(string $filename, array $lines): void
    {
        if (empty($lines)) {
            return;
        }

        if (!isset($this->lineCoverage[$filename])) {
            return;
        }

        $this->lineCoverage[$filename] = array_diff_key(
            $this->lineCoverage[$filename],
            array_flip($lines),
        );

        if (isset($this->functionCoverage[$filename])) {
            foreach ($this->functionCoverage[$filename] as $functionName => $functionData) {
                foreach ($functionData['branches'] as $branchId => $branch) {
                    if (count(array_intersect($lines, range($branch['line_start'], $branch['line_end']))) > 0) {
                        unset($this->functionCoverage[$filename][$functionName]['branches'][$branchId]);

                        foreach ($functionData['paths'] as $pathId => $path) {
                            if (in_array($branchId, $path['path'], true)) {
                                unset($this->functionCoverage[$filename][$functionName]['paths'][$pathId]);
                            }
                        }
                    }
                }
            }
        }
    }

    /**
     * At the end of a file, the PHP interpreter always sees an implicit return. Where this occurs in a file that has
     * e.g. a class definition, that line cannot be invoked from a test and results in confusing coverage. This engine
     * implementation detail therefore needs to be masked which is done here by simply ensuring that all empty lines
     * are skipped over for coverage purposes.
     *
     * @see https://github.com/sebastianbergmann/php-code-coverage/issues/799
     */
    private function skipEmptyLines(): void
    {
        foreach ($this->lineCoverage as $filename => $coverage) {
            foreach ($this->getEmptyLinesForFile($filename) as $emptyLine) {
                unset($this->lineCoverage[$filename][$emptyLine]);
            }
        }
    }

    private function getEmptyLinesForFile(string $filename): array
    {
        if (!isset(self::$emptyLineCache[$filename])) {
            self::$emptyLineCache[$filename] = [];

            if (is_file($filename)) {
                $sourceLines = explode("\n", file_get_contents($filename));

                foreach ($sourceLines as $line => $source) {
                    if (trim($source) === '') {
                        self::$emptyLineCache[$filename][] = ($line + 1);
                    }
                }
            }
        }

        return self::$emptyLineCache[$filename];
    }
}

.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