/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef JSEPTRANSPORT_H_
#define JSEPTRANSPORT_H_

#include <mozilla/RefPtr.h>
#include <mozilla/UniquePtr.h>

#include <string>
#include <vector>

#include "nsISupportsImpl.h"
#include "sdp/SdpAttribute.h"

namespace mozilla {

class JsepDtlsTransport {
 public:
  JsepDtlsTransport() : mRole(kJsepDtlsInvalidRole) {}

  virtual ~JsepDtlsTransport() {}

  enum Role { kJsepDtlsClient, kJsepDtlsServer, kJsepDtlsInvalidRole };

  virtual const SdpFingerprintAttributeList& GetFingerprints() const {
    return mFingerprints;
  }

  virtual Role GetRole() const { return mRole; }

 private:
  friend class JsepSessionImpl;

  SdpFingerprintAttributeList mFingerprints;
  Role mRole;
};

class JsepIceTransport {
 public:
  JsepIceTransport() {}

  virtual ~JsepIceTransport() {}

  const std::string& GetUfrag() const { return mUfrag; }
  const std::string& GetPassword() const { return mPwd; }
  const std::vector<std::string>& GetCandidates() const { return mCandidates; }

 private:
  friend class JsepSessionImpl;

  std::string mUfrag;
  std::string mPwd;
  std::vector<std::string> mCandidates;
};

class JsepTransport {
 public:
  JsepTransport() : mComponents(0) {}

  JsepTransport(const JsepTransport& orig) { *this = orig; }

  ~JsepTransport() {}

  JsepTransport& operator=(const JsepTransport& orig) {
    if (this != &orig) {
      mIce.reset(orig.mIce ? new JsepIceTransport(*orig.mIce) : nullptr);
      mDtls.reset(orig.mDtls ? new JsepDtlsTransport(*orig.mDtls) : nullptr);
      mTransportId = orig.mTransportId;
      mComponents = orig.mComponents;
      mLocalUfrag = orig.mLocalUfrag;
      mLocalPwd = orig.mLocalPwd;
    }
    return *this;
  }

  void Close() {
    mComponents = 0;
    mTransportId.clear();
    mIce.reset();
    mDtls.reset();
    mLocalUfrag.clear();
    mLocalPwd.clear();
  }

  // Unique identifier for this transport within this call. Group?
  std::string mTransportId;

  // ICE stuff.
  UniquePtr<JsepIceTransport> mIce;
  UniquePtr<JsepDtlsTransport> mDtls;

  // Number of required components.
  size_t mComponents;
  std::string mLocalUfrag;
  std::string mLocalPwd;
};

}  // namespace mozilla

#endif