// Copyright (C) 2020-2021 Primate Labs Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef LITEHTML_URL_H__
#define LITEHTML_URL_H__

#include <ostream>

#include "litehtml/os_types.h"

// https://datatracker.ietf.org/doc/html/rfc3986

namespace litehtml {

class url {
 public:
  url() = default;

  explicit url(const tstring& str);

  url(const tstring& scheme, const tstring& authority, const tstring& path, const tstring& query, const tstring& fragment);

  const tstring& string() const { return str_; }

  const tstring& scheme() const { return scheme_; }

  bool has_scheme() const { return !scheme_.empty(); }

  const tstring& authority() const { return authority_; }

  bool has_authority() const { return !authority_.empty(); }

  const tstring& path() const { return path_; }

  bool has_path() const { return !path_.empty(); }

  const tstring& query() const { return query_; }

  bool has_query() const { return !query_.empty(); }

  const tstring& fragment() const { return fragment_; }

  bool has_fragment() const { return !fragment_.empty(); }

 protected:
  tstring str_;

  // Assume URLs are relative by default.  See RFC 3986 Section 4.3 for
  // information on which URLs are considered relative and which URLs are
  // considered absolute:
  //
  //   https://datatracker.ietf.org/doc/html/rfc3986#section-4.3

  bool absolute_ = false;

  tstring scheme_;

  tstring authority_;

  tstring path_;

  tstring query_;

  tstring fragment_;
};

// Returns a URL that is resolved from the reference URL that might be
// relative to the base URL.  For example, given <https://www.twitter.com/> as
// the base URL and </foo> as the relative URL, resolve() will return the URL
// <https://www.twitter.com/foo>.

url resolve(const url& base, const url& reference);

}  // namespace litehtml

#endif  // LITEHTML_URL_H__
