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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_H_
#define COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_H_
#include <map>
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "components/copresence/handlers/audio/audio_directive_handler_impl.h"
#include "components/copresence/public/whispernet_client.h"
namespace copresence {
class AudioDirectiveHandler;
class Directive;
// The directive handler manages transmit and receive directives.
// TODO(ckehoe): Turn this into an interface.
class DirectiveHandler {
public:
explicit DirectiveHandler(scoped_ptr<AudioDirectiveHandler> audio_handler =
make_scoped_ptr(new AudioDirectiveHandlerImpl));
virtual ~DirectiveHandler();
// Starts processing directives with the provided Whispernet client.
// Directives will be queued until this function is called.
// |whispernet_client| is owned by the caller
// and must outlive the DirectiveHandler.
virtual void Start(WhispernetClient* whispernet_client);
// Adds a directive to handle.
virtual void AddDirective(const Directive& directive);
// Removes any directives associated with the given operation id.
virtual void RemoveDirectives(const std::string& op_id);
virtual const std::string GetCurrentAudioToken(AudioType type) const;
private:
// Starts actually running a directive.
void StartDirective(const std::string& op_id, const Directive& directive);
// Forwards the request to encode a token to whispernet,
// and instructs it to call samples_callback when encoding is complete.
void EncodeToken(
const std::string& token,
AudioType type,
const WhispernetClient::SamplesCallback& samples_callback);
scoped_ptr<AudioDirectiveHandler> audio_handler_;
std::map<std::string, std::vector<Directive>> pending_directives_;
// Belongs to the caller.
WhispernetClient* whispernet_client_;
DISALLOW_COPY_AND_ASSIGN(DirectiveHandler);
};
} // namespace copresence
#endif // COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_H_
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