<?php
/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Composer;
use Composer\Autoload\ClassLoader;
use Composer\Semver\VersionParser;
/**
 * This class is copied in every Composer installed project and available to all
 *
 * See also https://getcomposer.org/doc/07-runtime.md#installed-versions
 *
 * To require its presence, you can require `composer-runtime-api ^2.0`
 *
 * @final
 */
class InstalledVersions
{
    private static $installed;
    private static $canGetVendors;
    private static $installedByVendor = array();
    public static function getInstalledPackages()
    {
        $packages = array();
        foreach (self::getInstalled() as $installed) {
            $packages[] = array_keys($installed['versions']);
        }
        if (1 === \count($packages)) {
            return $packages[0];
        }
        return array_keys(array_flip(\call_user_func_array('array_merge', $packages)));
    }
    public static function getInstalledPackagesByType($type)
    {
        $packagesByType = array();
        foreach (self::getInstalled() as $installed) {
            foreach ($installed['versions'] as $name => $package) {
                if (isset($package['type']) && $package['type'] === $type) {
                    $packagesByType[] = $name;
                }
            }
        }
        return $packagesByType;
    }
    public static function isInstalled($packageName, $includeDevRequirements = true)
    {
        foreach (self::getInstalled() as $installed) {
            if (isset($installed['versions'][$packageName])) {
                return $includeDevRequirements || !isset($installed['versions'][$packageName]['dev_requirement']) || $installed['versions'][$packageName]['dev_requirement'] === false;
            }
        }
        return false;
    }
    public static function satisfies(VersionParser $parser, $packageName, $constraint)
    {
        $constraint = $parser->parseConstraints((string) $constraint);
        $provided = $parser->parseConstraints(self::getVersionRanges($packageName));
        return $provided->matches($constraint);
    }
    public static function getVersionRanges($packageName)
    {
        foreach (self::getInstalled() as $installed) {
            if (!isset($installed['versions'][$packageName])) {
                continue;
            }
            $ranges = array();
            if (isset($installed['versions'][$packageName]['pretty_version'])) {
                $ranges[] = $installed['versions'][$packageName]['pretty_version'];
            }
            if (array_key_exists('aliases', $installed['versions'][$packageName])) {
                $ranges = array_merge($ranges, $installed['versions'][$packageName]['aliases']);
            }
            if (array_key_exists('replaced', $installed['versions'][$packageName])) {
                $ranges = array_merge($ranges, $installed['versions'][$packageName]['replaced']);
            }
            if (array_key_exists('provided', $installed['versions'][$packageName])) {
                $ranges = array_merge($ranges, $installed['versions'][$packageName]['provided']);
            }
            return implode(' || ', $ranges);
        }
        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
    }
    public static function getVersion($packageName)
    {
        foreach (self::getInstalled() as $installed) {
            if (!isset($installed['versions'][$packageName])) {
                continue;
            }
            if (!isset($installed['versions'][$packageName]['version'])) {
                return null;
            }
            return $installed['versions'][$packageName]['version'];
        }
        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
    }
    public static function getPrettyVersion($packageName)
    {
        foreach (self::getInstalled() as $installed) {
            if (!isset($installed['versions'][$packageName])) {
                continue;
            }
            if (!isset($installed['versions'][$packageName]['pretty_version'])) {
                return null;
            }
            return $installed['versions'][$packageName]['pretty_version'];
        }
        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
    }
    public static function getReference($packageName)
    {
        foreach (self::getInstalled() as $installed) {
            if (!isset($installed['versions'][$packageName])) {
                continue;
            }
            if (!isset($installed['versions'][$packageName]['reference'])) {
                return null;
            }
            return $installed['versions'][$packageName]['reference'];
        }
        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
    }
    public static function getInstallPath($packageName)
    {
        foreach (self::getInstalled() as $installed) {
            if (!isset($installed['versions'][$packageName])) {
                continue;
            }
            return isset($installed['versions'][$packageName]['install_path']) ? $installed['versions'][$packageName]['install_path'] : null;
        }
        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
    }
    public static function getRootPackage()
    {
        $installed = self::getInstalled();
        return $installed[0]['root'];
    }
    public static function getRawData()
    {
        @trigger_error('getRawData only returns the first dataset loaded, which may not be what you expect. Use getAllRawData() instead which returns all datasets for all autoloaders present in the process.', E_USER_DEPRECATED);
        if (null === self::$installed) {
            if (substr(__DIR__, -8, 1) !== 'C') {
                self::$installed = include __DIR__ . '/installed.php';
            } else {
                self::$installed = array();
            }
        }
        return self::$installed;
    }
    public static function getAllRawData()
    {
        return self::getInstalled();
    }
    public static function reload($data)
    {
        self::$installed = $data;
        self::$installedByVendor = array();
    }
    private static function getInstalled()
    {
        if (null === self::$canGetVendors) {
            self::$canGetVendors = method_exists('Composer\Autoload\ClassLoader', 'getRegisteredLoaders');
        }
        $installed = array();
        if (self::$canGetVendors) {
            foreach (ClassLoader::getRegisteredLoaders() as $vendorDir => $loader) {
                if (isset(self::$installedByVendor[$vendorDir])) {
                    $installed[] = self::$installedByVendor[$vendorDir];
                } elseif (is_file($vendorDir.'/composer/installed.php')) {
                    $required = require $vendorDir.'/composer/installed.php';
                    $installed[] = self::$installedByVendor[$vendorDir] = $required;
                    if (null === self::$installed && strtr($vendorDir.'/composer', '\\', '/') === strtr(__DIR__, '\\', '/')) {
                        self::$installed = $installed[count($installed) - 1];
                    }
                }
            }
        }
        if (null === self::$installed) {
            if (substr(__DIR__, -8, 1) !== 'C') {
                $required = require __DIR__ . '/installed.php';
                self::$installed = $required;
            } else {
                self::$installed = array();
            }
        }
        if (self::$installed !== array()) {
            $installed[] = self::$installed;
        }
        return $installed;
    }
}