<?php


namespace Composer;

use Composer\Autoload\ClassLoader;
use Composer\Semver\VersionParser;


class InstalledVersions
{
private static $installed = array (
  'root' => 
  array (
    'pretty_version' => '3.19.9',
    'version' => '3.19.9.0',
    'aliases' => 
    array (
    ),
    'reference' => NULL,
    'name' => 'obs/esdk-obs-php',
  ),
  'versions' => 
  array (
    'guzzlehttp/guzzle' => 
    array (
      'pretty_version' => '6.3.0',
      'version' => '6.3.0.0',
      'aliases' => 
      array (
      ),
      'reference' => 'f4db5a78a5ea468d4831de7f0bf9d9415e348699',
    ),
    'guzzlehttp/promises' => 
    array (
      'pretty_version' => 'v1.3.1',
      'version' => '1.3.1.0',
      'aliases' => 
      array (
      ),
      'reference' => 'a59da6cf61d80060647ff4d3eb2c03a2bc694646',
    ),
    'guzzlehttp/psr7' => 
    array (
      'pretty_version' => '1.4.2',
      'version' => '1.4.2.0',
      'aliases' => 
      array (
      ),
      'reference' => 'f5b8a8512e2b58b0071a7280e39f14f72e05d87c',
    ),
    'monolog/monolog' => 
    array (
      'pretty_version' => '1.23.0',
      'version' => '1.23.0.0',
      'aliases' => 
      array (
      ),
      'reference' => 'fd8c787753b3a2ad11bc60c063cff1358a32a3b4',
    ),
    'obs/esdk-obs-php' => 
    array (
      'pretty_version' => '3.19.9',
      'version' => '3.19.9.0',
      'aliases' => 
      array (
      ),
      'reference' => NULL,
    ),
    'psr/http-message' => 
    array (
      'pretty_version' => '1.0.1',
      'version' => '1.0.1.0',
      'aliases' => 
      array (
      ),
      'reference' => 'f6561bf28d520154e4b0ec72be95418abe6d9363',
    ),
    'psr/http-message-implementation' => 
    array (
      'provided' => 
      array (
        0 => '1.0',
      ),
    ),
    'psr/log' => 
    array (
      'pretty_version' => '1.1.4',
      'version' => '1.1.4.0',
      'aliases' => 
      array (
      ),
      'reference' => 'd49695b909c3b7628b6289db5479a1c204601f11',
    ),
    'psr/log-implementation' => 
    array (
      'provided' => 
      array (
        0 => '1.0.0',
      ),
    ),
  ),
);
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 isInstalled($packageName)
{
foreach (self::getInstalled() as $installed) {
if (isset($installed['versions'][$packageName])) {
return true;
}
}

return false;
}


public static function satisfies(VersionParser $parser, $packageName, $constraint)
{
$constraint = $parser->parseConstraints($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 getRootPackage()
{
$installed = self::getInstalled();

return $installed[0]['root'];
}


public static function getRawData()
{
return self::$installed;
}


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')) {
$installed[] = self::$installedByVendor[$vendorDir] = require $vendorDir.'/composer/installed.php';
}
}
}

$installed[] = self::$installed;

return $installed;
}
}