<?php

/**
 * League.Uri (https://uri.thephpleague.com)
 *
 * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
declare (strict_types=1);
namespace IAWPSCOPED\League\Uri;

use IAWPSCOPED\League\Uri\Contracts\UriInterface;
use IAWPSCOPED\League\Uri\Exceptions\FileinfoSupportMissing;
use IAWPSCOPED\League\Uri\Exceptions\IdnaConversionFailed;
use IAWPSCOPED\League\Uri\Exceptions\IdnSupportMissing;
use IAWPSCOPED\League\Uri\Exceptions\SyntaxError;
use IAWPSCOPED\League\Uri\Idna\Idna;
use IAWPSCOPED\Psr\Http\Message\UriInterface as Psr7UriInterface;
use function array_filter;
use function array_map;
use function base64_decode;
use function base64_encode;
use function count;
use function explode;
use function file_get_contents;
use function filter_var;
use function implode;
use function in_array;
use function inet_pton;
use function is_object;
use function is_scalar;
use function method_exists;
use function preg_match;
use function preg_replace;
use function preg_replace_callback;
use function rawurlencode;
use function sprintf;
use function str_replace;
use function strlen;
use function strpos;
use function strspn;
use function strtolower;
use function substr;
use const FILEINFO_MIME;
use const FILTER_FLAG_IPV4;
use const FILTER_FLAG_IPV6;
use const FILTER_NULL_ON_FAILURE;
use const FILTER_VALIDATE_BOOLEAN;
use const FILTER_VALIDATE_IP;
/** @internal */
final class Uri implements UriInterface
{
    /**
     * RFC3986 invalid characters.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-2.2
     *
     * @var string
     */
    private const REGEXP_INVALID_CHARS = '/[\\x00-\\x1f\\x7f]/';
    /**
     * RFC3986 Sub delimiter characters regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-2.2
     *
     * @var string
     */
    private const REGEXP_CHARS_SUBDELIM = "\\!\$&'\\(\\)\\*\\+,;\\=%";
    /**
     * RFC3986 unreserved characters regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-2.3
     *
     * @var string
     */
    private const REGEXP_CHARS_UNRESERVED = 'A-Za-z0-9_\\-\\.~';
    /**
     * RFC3986 schema regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-3.1
     */
    private const REGEXP_SCHEME = ',^[a-z]([-a-z0-9+.]+)?$,i';
    /**
     * RFC3986 host identified by a registered name regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-3.2.2
     */
    private const REGEXP_HOST_REGNAME = '/^(
        (?<unreserved>[a-z0-9_~\\-\\.])|
        (?<sub_delims>[!$&\'()*+,;=])|
        (?<encoded>%[A-F0-9]{2})
    )+$/x';
    /**
     * RFC3986 delimiters of the generic URI components regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-2.2
     */
    private const REGEXP_HOST_GEN_DELIMS = '/[:\\/?#\\[\\]@ ]/';
    // Also includes space.
    /**
     * RFC3986 IPvFuture regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-3.2.2
     */
    private const REGEXP_HOST_IPFUTURE = '/^
        v(?<version>[A-F0-9])+\\.
        (?:
            (?<unreserved>[a-z0-9_~\\-\\.])|
            (?<sub_delims>[!$&\'()*+,;=:])  # also include the : character
        )+
    $/ix';
    /**
     * RFC3986 IPvFuture host and port component.
     */
    private const REGEXP_HOST_PORT = ',^(?<host>(\\[.*]|[^:])*)(:(?<port>[^/?#]*))?$,x';
    /**
     * Significant 10 bits of IP to detect Zone ID regular expression pattern.
     */
    private const HOST_ADDRESS_BLOCK = "\xfe\x80";
    /**
     * Regular expression pattern to for file URI.
     * <volume> contains the volume but not the volume separator.
     * The volume separator may be URL-encoded (`|` as `%7C`) by ::formatPath(),
     * so we account for that here.
     */
    private const REGEXP_FILE_PATH = ',^(?<delim>/)?(?<volume>[a-zA-Z])(?:[:|\\|]|%7C)(?<rest>.*)?,';
    /**
     * Mimetype regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc2397
     */
    private const REGEXP_MIMETYPE = ',^\\w+/[-.\\w]+(?:\\+[-.\\w]+)?$,';
    /**
     * Base64 content regular expression pattern.
     *
     * @link https://tools.ietf.org/html/rfc2397
     */
    private const REGEXP_BINARY = ',(;|^)base64$,';
    /**
     * Windows file path string regular expression pattern.
     * <root> contains both the volume and volume separator.
     */
    private const REGEXP_WINDOW_PATH = ',^(?<root>[a-zA-Z][:|\\|]),';
    /**
     * Supported schemes and corresponding default port.
     *
     * @var array
     */
    private const SCHEME_DEFAULT_PORT = ['data' => null, 'file' => null, 'ftp' => 21, 'gopher' => 70, 'http' => 80, 'https' => 443, 'ws' => 80, 'wss' => 443];
    /**
     * URI validation methods per scheme.
     *
     * @var array
     */
    private const SCHEME_VALIDATION_METHOD = ['data' => 'isUriWithSchemeAndPathOnly', 'file' => 'isUriWithSchemeHostAndPathOnly', 'ftp' => 'isNonEmptyHostUriWithoutFragmentAndQuery', 'gopher' => 'isNonEmptyHostUriWithoutFragmentAndQuery', 'http' => 'isNonEmptyHostUri', 'https' => 'isNonEmptyHostUri', 'ws' => 'isNonEmptyHostUriWithoutFragment', 'wss' => 'isNonEmptyHostUriWithoutFragment'];
    /**
     * All ASCII letters sorted by typical frequency of occurrence.
     *
     * @var string
     */
    private const ASCII = " eiasntrolud][cmp'\ng|hv.fb,:=-q10C2*yx)(L9AS/P\"EjMIk3>5T<D4}B{8FwR67UGN;JzV#HOW_&!K?XQ%Y\\\tZ+~^\$@`\x00\x01\x02\x03\x04\x05\x06\x07\x08\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f";
    /**
     * URI scheme component.
     *
     * @var string|null
     */
    private $scheme;
    /**
     * URI user info part.
     *
     * @var string|null
     */
    private $user_info;
    /**
     * URI host component.
     *
     * @var string|null
     */
    private $host;
    /**
     * URI port component.
     *
     * @var int|null
     */
    private $port;
    /**
     * URI authority string representation.
     *
     * @var string|null
     */
    private $authority;
    /**
     * URI path component.
     *
     * @var string
     */
    private $path = '';
    /**
     * URI query component.
     *
     * @var string|null
     */
    private $query;
    /**
     * URI fragment component.
     *
     * @var string|null
     */
    private $fragment;
    /**
     * URI string representation.
     *
     * @var string|null
     */
    private $uri;
    /**
     * Create a new instance.
     *
     * @param ?string $scheme
     * @param ?string $user
     * @param ?string $pass
     * @param ?string $host
     * @param ?int    $port
     * @param ?string $query
     * @param ?string $fragment
     */
    private function __construct(?string $scheme, ?string $user, ?string $pass, ?string $host, ?int $port, string $path, ?string $query, ?string $fragment)
    {
        $this->scheme = $this->formatScheme($scheme);
        $this->user_info = $this->formatUserInfo($user, $pass);
        $this->host = $this->formatHost($host);
        $this->port = $this->formatPort($port);
        $this->authority = $this->setAuthority();
        $this->path = $this->formatPath($path);
        $this->query = $this->formatQueryAndFragment($query);
        $this->fragment = $this->formatQueryAndFragment($fragment);
        $this->assertValidState();
    }
    /**
     * Format the Scheme and Host component.
     *
     * @param ?string $scheme
     *
     * @throws SyntaxError if the scheme is invalid
     */
    private function formatScheme(?string $scheme) : ?string
    {
        if (null === $scheme) {
            return $scheme;
        }
        $formatted_scheme = strtolower($scheme);
        if (1 === preg_match(self::REGEXP_SCHEME, $formatted_scheme)) {
            return $formatted_scheme;
        }
        throw new SyntaxError(sprintf('The scheme `%s` is invalid.', $scheme));
    }
    /**
     * Set the UserInfo component.
     *
     * @param ?string $user
     * @param ?string $password
     */
    private function formatUserInfo(?string $user, ?string $password) : ?string
    {
        if (null === $user) {
            return $user;
        }
        static $user_pattern = '/(?:[^%' . self::REGEXP_CHARS_UNRESERVED . self::REGEXP_CHARS_SUBDELIM . ']++|%(?![A-Fa-f0-9]{2}))/';
        $user = preg_replace_callback($user_pattern, [Uri::class, 'urlEncodeMatch'], $user);
        if (null === $password) {
            return $user;
        }
        static $password_pattern = '/(?:[^%:' . self::REGEXP_CHARS_UNRESERVED . self::REGEXP_CHARS_SUBDELIM . ']++|%(?![A-Fa-f0-9]{2}))/';
        return $user . ':' . preg_replace_callback($password_pattern, [Uri::class, 'urlEncodeMatch'], $password);
    }
    /**
     * Returns the RFC3986 encoded string matched.
     */
    private static function urlEncodeMatch(array $matches) : string
    {
        return rawurlencode($matches[0]);
    }
    /**
     * Validate and Format the Host component.
     *
     * @param ?string $host
     */
    private function formatHost(?string $host) : ?string
    {
        if (null === $host || '' === $host) {
            return $host;
        }
        if ('[' !== $host[0]) {
            return $this->formatRegisteredName($host);
        }
        return $this->formatIp($host);
    }
    /**
     * Validate and format a registered name.
     *
     * The host is converted to its ascii representation if needed
     *
     * @throws IdnSupportMissing if the submitted host required missing or misconfigured IDN support
     * @throws SyntaxError       if the submitted host is not a valid registered name
     */
    private function formatRegisteredName(string $host) : string
    {
        $formatted_host = \rawurldecode($host);
        if (1 === preg_match(self::REGEXP_HOST_REGNAME, $formatted_host)) {
            return $formatted_host;
        }
        if (1 === preg_match(self::REGEXP_HOST_GEN_DELIMS, $formatted_host)) {
            throw new SyntaxError(sprintf('The host `%s` is invalid : a registered name can not contain URI delimiters or spaces', $host));
        }
        $info = Idna::toAscii($host, Idna::IDNA2008_ASCII);
        if (0 !== $info->errors()) {
            throw IdnaConversionFailed::dueToIDNAError($host, $info);
        }
        return $info->result();
    }
    /**
     * Validate and Format the IPv6/IPvfuture host.
     *
     * @throws SyntaxError if the submitted host is not a valid IP host
     */
    private function formatIp(string $host) : string
    {
        $ip = substr($host, 1, -1);
        if (\false !== filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
            return $host;
        }
        if (1 === preg_match(self::REGEXP_HOST_IPFUTURE, $ip, $matches) && !in_array($matches['version'], ['4', '6'], \true)) {
            return $host;
        }
        $pos = strpos($ip, '%');
        if (\false === $pos) {
            throw new SyntaxError(sprintf('The host `%s` is invalid : the IP host is malformed', $host));
        }
        if (1 === preg_match(self::REGEXP_HOST_GEN_DELIMS, \rawurldecode(substr($ip, $pos)))) {
            throw new SyntaxError(sprintf('The host `%s` is invalid : the IP host is malformed', $host));
        }
        $ip = substr($ip, 0, $pos);
        if (\false === filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
            throw new SyntaxError(sprintf('The host `%s` is invalid : the IP host is malformed', $host));
        }
        //Only the address block fe80::/10 can have a Zone ID attach to
        //let's detect the link local significant 10 bits
        if (0 === strpos((string) inet_pton($ip), self::HOST_ADDRESS_BLOCK)) {
            return $host;
        }
        throw new SyntaxError(sprintf('The host `%s` is invalid : the IP host is malformed', $host));
    }
    /**
     * Format the Port component.
     *
     * @param null|mixed $port
     *
     * @throws SyntaxError
     */
    private function formatPort($port = null) : ?int
    {
        if (null === $port || '' === $port) {
            return null;
        }
        if (!\is_int($port) && !(\is_string($port) && 1 === preg_match('/^\\d*$/', $port))) {
            throw new SyntaxError(sprintf('The port `%s` is invalid', $port));
        }
        $port = (int) $port;
        if (0 > $port) {
            throw new SyntaxError(sprintf('The port `%s` is invalid', $port));
        }
        $defaultPort = self::SCHEME_DEFAULT_PORT[$this->scheme] ?? null;
        if ($defaultPort === $port) {
            return null;
        }
        return $port;
    }
    /**
     * {@inheritDoc}
     */
    public static function __set_state(array $components) : self
    {
        $components['user'] = null;
        $components['pass'] = null;
        if (null !== $components['user_info']) {
            [$components['user'], $components['pass']] = explode(':', $components['user_info'], 2) + [1 => null];
        }
        return new self($components['scheme'], $components['user'], $components['pass'], $components['host'], $components['port'], $components['path'], $components['query'], $components['fragment']);
    }
    /**
     * Create a new instance from a URI and a Base URI.
     *
     * The returned URI must be absolute.
     *
     * @param mixed      $uri      the input URI to create
     * @param null|mixed $base_uri the base URI used for reference
     */
    public static function createFromBaseUri($uri, $base_uri = null) : UriInterface
    {
        if (!$uri instanceof UriInterface) {
            $uri = self::createFromString($uri);
        }
        if (null === $base_uri) {
            if (null === $uri->getScheme()) {
                throw new SyntaxError(sprintf('the URI `%s` must be absolute', (string) $uri));
            }
            if (null === $uri->getAuthority()) {
                return $uri;
            }
            /** @var UriInterface $uri */
            $uri = UriResolver::resolve($uri, $uri->withFragment(null)->withQuery(null)->withPath(''));
            return $uri;
        }
        if (!$base_uri instanceof UriInterface) {
            $base_uri = self::createFromString($base_uri);
        }
        if (null === $base_uri->getScheme()) {
            throw new SyntaxError(sprintf('the base URI `%s` must be absolute', (string) $base_uri));
        }
        /** @var UriInterface $uri */
        $uri = UriResolver::resolve($uri, $base_uri);
        return $uri;
    }
    /**
     * Create a new instance from a string.
     *
     * @param string|mixed $uri
     */
    public static function createFromString($uri = '') : self
    {
        $components = UriString::parse($uri);
        return new self($components['scheme'], $components['user'], $components['pass'], $components['host'], $components['port'], $components['path'], $components['query'], $components['fragment']);
    }
    /**
     * Create a new instance from a hash of parse_url parts.
     *
     * Create an new instance from a hash representation of the URI similar
     * to PHP parse_url function result
     *
     * @param array<string, mixed> $components
     */
    public static function createFromComponents(array $components = []) : self
    {
        $components += ['scheme' => null, 'user' => null, 'pass' => null, 'host' => null, 'port' => null, 'path' => '', 'query' => null, 'fragment' => null];
        return new self($components['scheme'], $components['user'], $components['pass'], $components['host'], $components['port'], $components['path'], $components['query'], $components['fragment']);
    }
    /**
     * Create a new instance from a data file path.
     *
     * @param resource|null $context
     *
     * @throws FileinfoSupportMissing If ext/fileinfo is not installed
     * @throws SyntaxError            If the file does not exist or is not readable
     */
    public static function createFromDataPath(string $path, $context = null) : self
    {
        static $finfo_support = null;
        $finfo_support = $finfo_support ?? \class_exists(\finfo::class);
        // @codeCoverageIgnoreStart
        if (!$finfo_support) {
            throw new FileinfoSupportMissing(sprintf('Please install ext/fileinfo to use the %s() method.', __METHOD__));
        }
        // @codeCoverageIgnoreEnd
        $file_args = [$path, \false];
        $mime_args = [$path, FILEINFO_MIME];
        if (null !== $context) {
            $file_args[] = $context;
            $mime_args[] = $context;
        }
        $raw = @file_get_contents(...$file_args);
        if (\false === $raw) {
            throw new SyntaxError(sprintf('The file `%s` does not exist or is not readable', $path));
        }
        $mimetype = (string) (new \finfo(FILEINFO_MIME))->file(...$mime_args);
        return Uri::createFromComponents(['scheme' => 'data', 'path' => str_replace(' ', '', $mimetype . ';base64,' . base64_encode($raw))]);
    }
    /**
     * Create a new instance from a Unix path string.
     */
    public static function createFromUnixPath(string $uri = '') : self
    {
        $uri = implode('/', array_map('rawurlencode', explode('/', $uri)));
        if ('/' !== ($uri[0] ?? '')) {
            return Uri::createFromComponents(['path' => $uri]);
        }
        return Uri::createFromComponents(['path' => $uri, 'scheme' => 'file', 'host' => '']);
    }
    /**
     * Create a new instance from a local Windows path string.
     */
    public static function createFromWindowsPath(string $uri = '') : self
    {
        $root = '';
        if (1 === preg_match(self::REGEXP_WINDOW_PATH, $uri, $matches)) {
            $root = substr($matches['root'], 0, -1) . ':';
            $uri = substr($uri, strlen($root));
        }
        $uri = str_replace('\\', '/', $uri);
        $uri = implode('/', array_map('rawurlencode', explode('/', $uri)));
        //Local Windows absolute path
        if ('' !== $root) {
            return Uri::createFromComponents(['path' => '/' . $root . $uri, 'scheme' => 'file', 'host' => '']);
        }
        //UNC Windows Path
        if ('//' !== substr($uri, 0, 2)) {
            return Uri::createFromComponents(['path' => $uri]);
        }
        $parts = explode('/', substr($uri, 2), 2) + [1 => null];
        return Uri::createFromComponents(['host' => $parts[0], 'path' => '/' . $parts[1], 'scheme' => 'file']);
    }
    /**
     * Create a new instance from a URI object.
     *
     * @param Psr7UriInterface|UriInterface $uri the input URI to create
     */
    public static function createFromUri($uri) : self
    {
        if ($uri instanceof UriInterface) {
            $user_info = $uri->getUserInfo();
            $user = null;
            $pass = null;
            if (null !== $user_info) {
                [$user, $pass] = explode(':', $user_info, 2) + [1 => null];
            }
            return new self($uri->getScheme(), $user, $pass, $uri->getHost(), $uri->getPort(), $uri->getPath(), $uri->getQuery(), $uri->getFragment());
        }
        if (!$uri instanceof Psr7UriInterface) {
            throw new \TypeError(sprintf('The object must implement the `%s` or the `%s`', Psr7UriInterface::class, UriInterface::class));
        }
        $scheme = $uri->getScheme();
        if ('' === $scheme) {
            $scheme = null;
        }
        $fragment = $uri->getFragment();
        if ('' === $fragment) {
            $fragment = null;
        }
        $query = $uri->getQuery();
        if ('' === $query) {
            $query = null;
        }
        $host = $uri->getHost();
        if ('' === $host) {
            $host = null;
        }
        $user_info = $uri->getUserInfo();
        $user = null;
        $pass = null;
        if ('' !== $user_info) {
            [$user, $pass] = explode(':', $user_info, 2) + [1 => null];
        }
        return new self($scheme, $user, $pass, $host, $uri->getPort(), $uri->getPath(), $query, $fragment);
    }
    /**
     * Create a new instance from the environment.
     */
    public static function createFromServer(array $server) : self
    {
        [$user, $pass] = self::fetchUserInfo($server);
        [$host, $port] = self::fetchHostname($server);
        [$path, $query] = self::fetchRequestUri($server);
        return Uri::createFromComponents(['scheme' => self::fetchScheme($server), 'user' => $user, 'pass' => $pass, 'host' => $host, 'port' => $port, 'path' => $path, 'query' => $query]);
    }
    /**
     * Returns the environment scheme.
     */
    private static function fetchScheme(array $server) : string
    {
        $server += ['HTTPS' => ''];
        $res = filter_var($server['HTTPS'], FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
        return \false !== $res ? 'https' : 'http';
    }
    /**
     * Returns the environment user info.
     *
     * @return array{0:?string, 1:?string}
     */
    private static function fetchUserInfo(array $server) : array
    {
        $server += ['PHP_AUTH_USER' => null, 'PHP_AUTH_PW' => null, 'HTTP_AUTHORIZATION' => ''];
        $user = $server['PHP_AUTH_USER'];
        $pass = $server['PHP_AUTH_PW'];
        if (0 === strpos(strtolower($server['HTTP_AUTHORIZATION']), 'basic')) {
            $userinfo = base64_decode(substr($server['HTTP_AUTHORIZATION'], 6), \true);
            if (\false === $userinfo) {
                throw new SyntaxError('The user info could not be detected');
            }
            [$user, $pass] = explode(':', $userinfo, 2) + [1 => null];
        }
        if (null !== $user) {
            $user = rawurlencode($user);
        }
        if (null !== $pass) {
            $pass = rawurlencode($pass);
        }
        return [$user, $pass];
    }
    /**
     * Returns the environment host.
     *
     * @throws SyntaxError If the host can not be detected
     *
     * @return array{0:?string, 1:?string}
     */
    private static function fetchHostname(array $server) : array
    {
        $server += ['SERVER_PORT' => null];
        if (null !== $server['SERVER_PORT']) {
            $server['SERVER_PORT'] = (int) $server['SERVER_PORT'];
        }
        if (isset($server['HTTP_HOST']) && 1 === preg_match(self::REGEXP_HOST_PORT, $server['HTTP_HOST'], $matches)) {
            return [$matches['host'], isset($matches['port']) ? (int) $matches['port'] : $server['SERVER_PORT']];
        }
        if (!isset($server['SERVER_ADDR'])) {
            throw new SyntaxError('The host could not be detected');
        }
        if (\false === filter_var($server['SERVER_ADDR'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
            $server['SERVER_ADDR'] = '[' . $server['SERVER_ADDR'] . ']';
        }
        return [$server['SERVER_ADDR'], $server['SERVER_PORT']];
    }
    /**
     * Returns the environment path.
     *
     * @return array{0:?string, 1:?string}
     */
    private static function fetchRequestUri(array $server) : array
    {
        $server += ['IIS_WasUrlRewritten' => null, 'UNENCODED_URL' => '', 'PHP_SELF' => '', 'QUERY_STRING' => null];
        if ('1' === $server['IIS_WasUrlRewritten'] && '' !== $server['UNENCODED_URL']) {
            /** @var array{0:?string, 1:?string} $retval */
            $retval = explode('?', $server['UNENCODED_URL'], 2) + [1 => null];
            return $retval;
        }
        if (isset($server['REQUEST_URI'])) {
            [$path] = explode('?', $server['REQUEST_URI'], 2);
            $query = '' !== $server['QUERY_STRING'] ? $server['QUERY_STRING'] : null;
            return [$path, $query];
        }
        return [$server['PHP_SELF'], $server['QUERY_STRING']];
    }
    /**
     * Generate the URI authority part.
     */
    private function setAuthority() : ?string
    {
        $authority = null;
        if (null !== $this->user_info) {
            $authority = $this->user_info . '@';
        }
        if (null !== $this->host) {
            $authority .= $this->host;
        }
        if (null !== $this->port) {
            $authority .= ':' . $this->port;
        }
        return $authority;
    }
    /**
     * Format the Path component.
     */
    private function formatPath(string $path) : string
    {
        $path = $this->formatDataPath($path);
        static $pattern = '/(?:[^' . self::REGEXP_CHARS_UNRESERVED . self::REGEXP_CHARS_SUBDELIM . '%:@\\/}{]++|%(?![A-Fa-f0-9]{2}))/';
        $path = (string) preg_replace_callback($pattern, [Uri::class, 'urlEncodeMatch'], $path);
        return $this->formatFilePath($path);
    }
    /**
     * Filter the Path component.
     *
     * @link https://tools.ietf.org/html/rfc2397
     *
     * @throws SyntaxError If the path is not compliant with RFC2397
     */
    private function formatDataPath(string $path) : string
    {
        if ('data' !== $this->scheme) {
            return $path;
        }
        if ('' == $path) {
            return 'text/plain;charset=us-ascii,';
        }
        if (strlen($path) !== strspn($path, self::ASCII) || \false === strpos($path, ',')) {
            throw new SyntaxError(sprintf('The path `%s` is invalid according to RFC2937', $path));
        }
        $parts = explode(',', $path, 2) + [1 => null];
        $mediatype = explode(';', (string) $parts[0], 2) + [1 => null];
        $data = (string) $parts[1];
        $mimetype = $mediatype[0];
        if (null === $mimetype || '' === $mimetype) {
            $mimetype = 'text/plain';
        }
        $parameters = $mediatype[1];
        if (null === $parameters || '' === $parameters) {
            $parameters = 'charset=us-ascii';
        }
        $this->assertValidPath($mimetype, $parameters, $data);
        return $mimetype . ';' . $parameters . ',' . $data;
    }
    /**
     * Assert the path is a compliant with RFC2397.
     *
     * @link https://tools.ietf.org/html/rfc2397
     *
     * @throws SyntaxError If the mediatype or the data are not compliant with the RFC2397
     */
    private function assertValidPath(string $mimetype, string $parameters, string $data) : void
    {
        if (1 !== preg_match(self::REGEXP_MIMETYPE, $mimetype)) {
            throw new SyntaxError(sprintf('The path mimetype `%s` is invalid', $mimetype));
        }
        $is_binary = 1 === preg_match(self::REGEXP_BINARY, $parameters, $matches);
        if ($is_binary) {
            $parameters = substr($parameters, 0, -strlen($matches[0]));
        }
        $res = array_filter(array_filter(explode(';', $parameters), [$this, 'validateParameter']));
        if ([] !== $res) {
            throw new SyntaxError(sprintf('The path paremeters `%s` is invalid', $parameters));
        }
        if (!$is_binary) {
            return;
        }
        $res = base64_decode($data, \true);
        if (\false === $res || $data !== base64_encode($res)) {
            throw new SyntaxError(sprintf('The path data `%s` is invalid', $data));
        }
    }
    /**
     * Validate mediatype parameter.
     */
    private function validateParameter(string $parameter) : bool
    {
        $properties = explode('=', $parameter);
        return 2 != count($properties) || 'base64' === strtolower($properties[0]);
    }
    /**
     * Format path component for file scheme.
     */
    private function formatFilePath(string $path) : string
    {
        if ('file' !== $this->scheme) {
            return $path;
        }
        $replace = static function (array $matches) : string {
            return $matches['delim'] . $matches['volume'] . ':' . $matches['rest'];
        };
        return (string) preg_replace_callback(self::REGEXP_FILE_PATH, $replace, $path);
    }
    /**
     * Format the Query or the Fragment component.
     *
     * Returns a array containing:
     * <ul>
     * <li> the formatted component (a string or null)</li>
     * <li> a boolean flag telling wether the delimiter is to be added to the component
     * when building the URI string representation</li>
     * </ul>
     *
     * @param ?string $component
     */
    private function formatQueryAndFragment(?string $component) : ?string
    {
        if (null === $component || '' === $component) {
            return $component;
        }
        static $pattern = '/(?:[^' . self::REGEXP_CHARS_UNRESERVED . self::REGEXP_CHARS_SUBDELIM . '%:@\\/\\?]++|%(?![A-Fa-f0-9]{2}))/';
        return preg_replace_callback($pattern, [Uri::class, 'urlEncodeMatch'], $component);
    }
    /**
     * assert the URI internal state is valid.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-3
     * @link https://tools.ietf.org/html/rfc3986#section-3.3
     *
     * @throws SyntaxError if the URI is in an invalid state according to RFC3986
     * @throws SyntaxError if the URI is in an invalid state according to scheme specific rules
     */
    private function assertValidState() : void
    {
        if (null !== $this->authority && ('' !== $this->path && '/' !== $this->path[0])) {
            throw new SyntaxError('If an authority is present the path must be empty or start with a `/`.');
        }
        if (null === $this->authority && 0 === strpos($this->path, '//')) {
            throw new SyntaxError(sprintf('If there is no authority the path `%s` can not start with a `//`.', $this->path));
        }
        $pos = strpos($this->path, ':');
        if (null === $this->authority && null === $this->scheme && \false !== $pos && \false === strpos(substr($this->path, 0, $pos), '/')) {
            throw new SyntaxError('In absence of a scheme and an authority the first path segment cannot contain a colon (":") character.');
        }
        $validationMethod = self::SCHEME_VALIDATION_METHOD[$this->scheme] ?? null;
        if (null === $validationMethod || \true === $this->{$validationMethod}()) {
            $this->uri = null;
            return;
        }
        throw new SyntaxError(sprintf('The uri `%s` is invalid for the `%s` scheme.', (string) $this, $this->scheme));
    }
    /**
     * URI validation for URI schemes which allows only scheme and path components.
     */
    private function isUriWithSchemeAndPathOnly() : bool
    {
        return null === $this->authority && null === $this->query && null === $this->fragment;
    }
    /**
     * URI validation for URI schemes which allows only scheme, host and path components.
     */
    private function isUriWithSchemeHostAndPathOnly() : bool
    {
        return null === $this->user_info && null === $this->port && null === $this->query && null === $this->fragment && !('' != $this->scheme && null === $this->host);
    }
    /**
     * URI validation for URI schemes which disallow the empty '' host.
     */
    private function isNonEmptyHostUri() : bool
    {
        return '' !== $this->host && !(null !== $this->scheme && null === $this->host);
    }
    /**
     * URI validation for URIs schemes which disallow the empty '' host
     * and forbids the fragment component.
     */
    private function isNonEmptyHostUriWithoutFragment() : bool
    {
        return $this->isNonEmptyHostUri() && null === $this->fragment;
    }
    /**
     * URI validation for URIs schemes which disallow the empty '' host
     * and forbids fragment and query components.
     */
    private function isNonEmptyHostUriWithoutFragmentAndQuery() : bool
    {
        return $this->isNonEmptyHostUri() && null === $this->fragment && null === $this->query;
    }
    /**
     * Generate the URI string representation from its components.
     *
     * @link https://tools.ietf.org/html/rfc3986#section-5.3
     *
     * @param ?string $scheme
     * @param ?string $authority
     * @param ?string $query
     * @param ?string $fragment
     */
    private function getUriString(?string $scheme, ?string $authority, string $path, ?string $query, ?string $fragment) : string
    {
        if (null !== $scheme) {
            $scheme = $scheme . ':';
        }
        if (null !== $authority) {
            $authority = '//' . $authority;
        }
        if (null !== $query) {
            $query = '?' . $query;
        }
        if (null !== $fragment) {
            $fragment = '#' . $fragment;
        }
        return $scheme . $authority . $path . $query . $fragment;
    }
    public function toString() : string
    {
        $this->uri = $this->uri ?? $this->getUriString($this->scheme, $this->authority, $this->path, $this->query, $this->fragment);
        return $this->uri;
    }
    /**
     * {@inheritDoc}
     */
    public function __toString() : string
    {
        return $this->toString();
    }
    /**
     * {@inheritDoc}
     */
    public function jsonSerialize() : string
    {
        return $this->toString();
    }
    /**
     * {@inheritDoc}
     *
     * @return array{scheme:?string, user_info:?string, host:?string, port:?int, path:string, query:?string, fragment:?string}
     */
    public function __debugInfo() : array
    {
        return ['scheme' => $this->scheme, 'user_info' => isset($this->user_info) ? preg_replace(',:(.*).?$,', ':***', $this->user_info) : null, 'host' => $this->host, 'port' => $this->port, 'path' => $this->path, 'query' => $this->query, 'fragment' => $this->fragment];
    }
    /**
     * {@inheritDoc}
     */
    public function getScheme() : ?string
    {
        return $this->scheme;
    }
    /**
     * {@inheritDoc}
     */
    public function getAuthority() : ?string
    {
        return $this->authority;
    }
    /**
     * {@inheritDoc}
     */
    public function getUserInfo() : ?string
    {
        return $this->user_info;
    }
    /**
     * {@inheritDoc}
     */
    public function getHost() : ?string
    {
        return $this->host;
    }
    /**
     * {@inheritDoc}
     */
    public function getPort() : ?int
    {
        return $this->port;
    }
    /**
     * {@inheritDoc}
     */
    public function getPath() : string
    {
        return $this->path;
    }
    /**
     * {@inheritDoc}
     */
    public function getQuery() : ?string
    {
        return $this->query;
    }
    /**
     * {@inheritDoc}
     */
    public function getFragment() : ?string
    {
        return $this->fragment;
    }
    /**
     * {@inheritDoc}
     */
    public function withScheme($scheme) : UriInterface
    {
        $scheme = $this->formatScheme($this->filterString($scheme));
        if ($scheme === $this->scheme) {
            return $this;
        }
        $clone = clone $this;
        $clone->scheme = $scheme;
        $clone->port = $clone->formatPort($clone->port);
        $clone->authority = $clone->setAuthority();
        $clone->assertValidState();
        return $clone;
    }
    /**
     * Filter a string.
     *
     * @param mixed $str the value to evaluate as a string
     *
     * @throws SyntaxError if the submitted data can not be converted to string
     */
    private function filterString($str) : ?string
    {
        if (null === $str) {
            return $str;
        }
        if (is_object($str) && method_exists($str, '__toString')) {
            $str = (string) $str;
        }
        if (!is_scalar($str)) {
            throw new \TypeError(sprintf('The component must be a string, a scalar or a stringable object %s given.', \gettype($str)));
        }
        $str = (string) $str;
        if (1 !== preg_match(self::REGEXP_INVALID_CHARS, $str)) {
            return $str;
        }
        throw new SyntaxError(sprintf('The component `%s` contains invalid characters.', $str));
    }
    /**
     * {@inheritDoc}
     */
    public function withUserInfo($user, $password = null) : UriInterface
    {
        $user_info = null;
        $user = $this->filterString($user);
        if (null !== $password) {
            $password = $this->filterString($password);
        }
        if ('' !== $user) {
            $user_info = $this->formatUserInfo($user, $password);
        }
        if ($user_info === $this->user_info) {
            return $this;
        }
        $clone = clone $this;
        $clone->user_info = $user_info;
        $clone->authority = $clone->setAuthority();
        $clone->assertValidState();
        return $clone;
    }
    /**
     * {@inheritDoc}
     */
    public function withHost($host) : UriInterface
    {
        $host = $this->formatHost($this->filterString($host));
        if ($host === $this->host) {
            return $this;
        }
        $clone = clone $this;
        $clone->host = $host;
        $clone->authority = $clone->setAuthority();
        $clone->assertValidState();
        return $clone;
    }
    /**
     * {@inheritDoc}
     */
    public function withPort($port) : UriInterface
    {
        $port = $this->formatPort($port);
        if ($port === $this->port) {
            return $this;
        }
        $clone = clone $this;
        $clone->port = $port;
        $clone->authority = $clone->setAuthority();
        $clone->assertValidState();
        return $clone;
    }
    /**
     * {@inheritDoc}
     */
    public function withPath($path) : UriInterface
    {
        $path = $this->filterString($path);
        if (null === $path) {
            throw new \TypeError('A path must be a string NULL given.');
        }
        $path = $this->formatPath($path);
        if ($path === $this->path) {
            return $this;
        }
        $clone = clone $this;
        $clone->path = $path;
        $clone->assertValidState();
        return $clone;
    }
    /**
     * {@inheritDoc}
     */
    public function withQuery($query) : UriInterface
    {
        $query = $this->formatQueryAndFragment($this->filterString($query));
        if ($query === $this->query) {
            return $this;
        }
        $clone = clone $this;
        $clone->query = $query;
        $clone->assertValidState();
        return $clone;
    }
    /**
     * {@inheritDoc}
     */
    public function withFragment($fragment) : UriInterface
    {
        $fragment = $this->formatQueryAndFragment($this->filterString($fragment));
        if ($fragment === $this->fragment) {
            return $this;
        }
        $clone = clone $this;
        $clone->fragment = $fragment;
        $clone->assertValidState();
        return $clone;
    }
}
