// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine Master
// License Agreement.

#ifndef WIDEVINE_MEDIA_CAS_H
#define WIDEVINE_MEDIA_CAS_H

#include "media/cas/CasAPI.h"

using android::CasFactory;
using android::CasPlugin;
using android::CasPluginCallback;
using android::CasPluginCallbackExt;
using android::CasPluginDescriptor;
using android::status_t;
using android::String8;

extern "C" {
android::CasFactory* createCasFactory();
}

namespace wvcas {

// WidevineCasFactory implements the android::CasFactory interface.
class WidevineCasFactory : public CasFactory {
 public:
  // Implements android::CasFactory* createCasFactory(). This method is used
  // by the MediaCas framework to construct our factory.
  static WidevineCasFactory* createCasFactory();
  ~WidevineCasFactory() override {}

  // Test the input |CA_system_id| and return true if it is supported.
  // We only support the Widevine CA ID.
  bool isSystemIdSupported(int32_t CA_system_id) const override;

  // Add a descriptor to the vector |descriptors| for each CA ID we support.
  // We only support the Widevine CA ID.
  status_t queryPlugins(
      std::vector<CasPluginDescriptor>* descriptors) const override;

  // Construct an instance of our CAS API plugin.
  status_t createPlugin(int32_t CA_system_id, void* appData,
                        CasPluginCallback callback,
                        CasPlugin** plugin) override;

  // Construct a new extend instance of a CasPlugin given a CA_system_id
  status_t createPlugin(int32_t CA_system_id, void* appData,
                        CasPluginCallbackExt callback,
                        CasPlugin** plugin) override;

 private:
  WidevineCasFactory() {}
  WidevineCasFactory(const WidevineCasFactory&);
  WidevineCasFactory& operator=(const WidevineCasFactory&);
};

}  // namespace wvcas

#endif  // WIDEVINE_MEDIA_CAS_H