<?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_key_exists;
use function array_keys;
use function array_merge;
use function array_unique;
use function count;
use function is_array;
use function ksort;
use SebastianBergmann\CodeCoverage\Driver\Driver;

/**
 * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
 *
 * @phpstan-import-type XdebugFunctionCoverageType from \SebastianBergmann\CodeCoverage\Driver\XdebugDriver
 *
 * @phpstan-type TestIdType = string
 */
final class ProcessedCodeCoverageData
{
    /**
     * Line coverage data.
     * An array of filenames, each having an array of linenumbers, each executable line having an array of testcase ids.
     *
     * @var array<string, array<int, null|list<TestIdType>>>
     */
    private array $lineCoverage = [];

    /**
     * Function coverage data.
     * Maintains base format of raw data (@see https://xdebug.org/docs/code_coverage), but each 'hit' entry is an array
     * of testcase ids.
     *
     * @var array<string, array<string, array{
     *     branches: array<int, array{
     *         op_start: int,
     *         op_end: int,
     *         line_start: int,
     *         line_end: int,
     *         hit: list<TestIdType>,
     *         out: array<int, int>,
     *         out_hit: array<int, int>,
     *     }>,
     *     paths: array<int, array{
     *         path: array<int, int>,
     *         hit: list<TestIdType>,
     *     }>,
     *     hit: list<TestIdType>
     * }>>
     */
    private array $functionCoverage = [];

    public function initializeUnseenData(RawCodeCoverageData $rawData): void
    {
        foreach ($rawData->lineCoverage() as $file => $lines) {
            if (!isset($this->lineCoverage[$file])) {
                $this->lineCoverage[$file] = [];

                foreach ($lines as $k => $v) {
                    $this->lineCoverage[$file][$k] = $v === Driver::LINE_NOT_EXECUTABLE ? null : [];
                }
            }
        }

        foreach ($rawData->functionCoverage() as $file => $functions) {
            foreach ($functions as $functionName => $functionData) {
                if (isset($this->functionCoverage[$file][$functionName])) {
                    $this->initPreviouslySeenFunction($file, $functionName, $functionData);
                } else {
                    $this->initPreviouslyUnseenFunction($file, $functionName, $functionData);
                }
            }
        }
    }

    public function markCodeAsExecutedByTestCase(string $testCaseId, RawCodeCoverageData $executedCode): void
    {
        foreach ($executedCode->lineCoverage() as $file => $lines) {
            foreach ($lines as $k => $v) {
                if ($v === Driver::LINE_EXECUTED) {
                    $this->lineCoverage[$file][$k][] = $testCaseId;
                }
            }
        }

        foreach ($executedCode->functionCoverage() as $file => $functions) {
            foreach ($functions as $functionName => $functionData) {
                foreach ($functionData['branches'] as $branchId => $branchData) {
                    if ($branchData['hit'] === Driver::BRANCH_HIT) {
                        $this->functionCoverage[$file][$functionName]['branches'][$branchId]['hit'][] = $testCaseId;
                    }
                }

                foreach ($functionData['paths'] as $pathId => $pathData) {
                    if ($pathData['hit'] === Driver::BRANCH_HIT) {
                        $this->functionCoverage[$file][$functionName]['paths'][$pathId]['hit'][] = $testCaseId;
                    }
                }
            }
        }
    }

    public function setLineCoverage(array $lineCoverage): void
    {
        $this->lineCoverage = $lineCoverage;
    }

    public function lineCoverage(): array
    {
        ksort($this->lineCoverage);

        return $this->lineCoverage;
    }

    public function setFunctionCoverage(array $functionCoverage): void
    {
        $this->functionCoverage = $functionCoverage;
    }

    public function functionCoverage(): array
    {
        ksort($this->functionCoverage);

        return $this->functionCoverage;
    }

    public function coveredFiles(): array
    {
        ksort($this->lineCoverage);

        return array_keys($this->lineCoverage);
    }

    public function renameFile(string $oldFile, string $newFile): void
    {
        $this->lineCoverage[$newFile] = $this->lineCoverage[$oldFile];

        if (isset($this->functionCoverage[$oldFile])) {
            $this->functionCoverage[$newFile] = $this->functionCoverage[$oldFile];
        }

        unset($this->lineCoverage[$oldFile], $this->functionCoverage[$oldFile]);
    }

    public function merge(self $newData): void
    {
        foreach ($newData->lineCoverage as $file => $lines) {
            if (!isset($this->lineCoverage[$file])) {
                $this->lineCoverage[$file] = $lines;

                continue;
            }

            // we should compare the lines if any of two contains data
            $compareLineNumbers = array_unique(
                array_merge(
                    array_keys($this->lineCoverage[$file]),
                    array_keys($newData->lineCoverage[$file]),
                ),
            );

            foreach ($compareLineNumbers as $line) {
                $thatPriority = $this->priorityForLine($newData->lineCoverage[$file], $line);
                $thisPriority = $this->priorityForLine($this->lineCoverage[$file], $line);

                if ($thatPriority > $thisPriority) {
                    $this->lineCoverage[$file][$line] = $newData->lineCoverage[$file][$line];
                } elseif ($thatPriority === $thisPriority && is_array($this->lineCoverage[$file][$line])) {
                    $this->lineCoverage[$file][$line] = array_unique(
                        array_merge($this->lineCoverage[$file][$line], $newData->lineCoverage[$file][$line]),
                    );
                }
            }
        }

        foreach ($newData->functionCoverage as $file => $functions) {
            if (!isset($this->functionCoverage[$file])) {
                $this->functionCoverage[$file] = $functions;

                continue;
            }

            foreach ($functions as $functionName => $functionData) {
                if (isset($this->functionCoverage[$file][$functionName])) {
                    $this->initPreviouslySeenFunction($file, $functionName, $functionData);
                } else {
                    $this->initPreviouslyUnseenFunction($file, $functionName, $functionData);
                }

                foreach ($functionData['branches'] as $branchId => $branchData) {
                    $this->functionCoverage[$file][$functionName]['branches'][$branchId]['hit'] = array_unique(array_merge($this->functionCoverage[$file][$functionName]['branches'][$branchId]['hit'], $branchData['hit']));
                }

                foreach ($functionData['paths'] as $pathId => $pathData) {
                    $this->functionCoverage[$file][$functionName]['paths'][$pathId]['hit'] = array_unique(array_merge($this->functionCoverage[$file][$functionName]['paths'][$pathId]['hit'], $pathData['hit']));
                }
            }
        }
    }

    /**
     * Determine the priority for a line.
     *
     * 1 = the line is not set
     * 2 = the line has not been tested
     * 3 = the line is dead code
     * 4 = the line has been tested
     *
     * During a merge, a higher number is better.
     */
    private function priorityForLine(array $data, int $line): int
    {
        if (!array_key_exists($line, $data)) {
            return 1;
        }

        if (is_array($data[$line]) && count($data[$line]) === 0) {
            return 2;
        }

        if ($data[$line] === null) {
            return 3;
        }

        return 4;
    }

    /**
     * For a function we have never seen before, copy all data over and simply init the 'hit' array.
     *
     * @param XdebugFunctionCoverageType $functionData
     */
    private function initPreviouslyUnseenFunction(string $file, string $functionName, array $functionData): void
    {
        $this->functionCoverage[$file][$functionName] = $functionData;

        foreach (array_keys($functionData['branches']) as $branchId) {
            $this->functionCoverage[$file][$functionName]['branches'][$branchId]['hit'] = [];
        }

        foreach (array_keys($functionData['paths']) as $pathId) {
            $this->functionCoverage[$file][$functionName]['paths'][$pathId]['hit'] = [];
        }
    }

    /**
     * For a function we have seen before, only copy over and init the 'hit' array for any unseen branches and paths.
     * Techniques such as mocking and where the contents of a file are different vary during tests (e.g. compiling
     * containers) mean that the functions inside a file cannot be relied upon to be static.
     *
     * @param XdebugFunctionCoverageType $functionData
     */
    private function initPreviouslySeenFunction(string $file, string $functionName, array $functionData): void
    {
        foreach ($functionData['branches'] as $branchId => $branchData) {
            if (!isset($this->functionCoverage[$file][$functionName]['branches'][$branchId])) {
                $this->functionCoverage[$file][$functionName]['branches'][$branchId]        = $branchData;
                $this->functionCoverage[$file][$functionName]['branches'][$branchId]['hit'] = [];
            }
        }

        foreach ($functionData['paths'] as $pathId => $pathData) {
            if (!isset($this->functionCoverage[$file][$functionName]['paths'][$pathId])) {
                $this->functionCoverage[$file][$functionName]['paths'][$pathId]        = $pathData;
                $this->functionCoverage[$file][$functionName]['paths'][$pathId]['hit'] = [];
            }
        }
    }
}

.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