/*
 * Copyright 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "model/devices/hci_device.h"

#include <cstdint>
#include <memory>
#include <vector>

#include "log.h"
#include "model/controller/controller_properties.h"
#include "model/controller/dual_mode_controller.h"
#include "model/hci/hci_transport.h"
#include "packets/link_layer_packets.h"

namespace rootcanal {

HciDevice::HciDevice(std::shared_ptr<HciTransport> transport,
                     ControllerProperties const& properties)
    : DualModeController(ControllerProperties(properties)), transport_(transport) {
  link_layer_controller_.SetLocalName(std::vector<uint8_t>({
          'g',
          'D',
          'e',
          'v',
          'i',
          'c',
          'e',
          '-',
          'H',
          'C',
          'I',
  }));
  link_layer_controller_.SetExtendedInquiryResponse(std::vector<uint8_t>({
          12,  // Length
          9,   // Type: Device Name
          'g',
          'D',
          'e',
          'v',
          'i',
          'c',
          'e',
          '-',
          'h',
          'c',
          'i',
  }));

  RegisterEventChannel([this](std::shared_ptr<std::vector<uint8_t>> packet) {
    transport_->Send(PacketType::EVENT, *packet);
  });
  RegisterAclChannel([this](std::shared_ptr<std::vector<uint8_t>> packet) {
    transport_->Send(PacketType::ACL, *packet);
  });
  RegisterScoChannel([this](std::shared_ptr<std::vector<uint8_t>> packet) {
    transport_->Send(PacketType::SCO, *packet);
  });
  RegisterIsoChannel([this](std::shared_ptr<std::vector<uint8_t>> packet) {
    transport_->Send(PacketType::ISO, *packet);
  });

  transport_->RegisterCallbacks(
          [this](PacketType packet_type, const std::shared_ptr<std::vector<uint8_t>> packet) {
            switch (packet_type) {
              case PacketType::COMMAND:
                HandleCommand(packet);
                break;
              case PacketType::ACL:
                HandleAcl(packet);
                break;
              case PacketType::SCO:
                HandleSco(packet);
                break;
              case PacketType::ISO:
                HandleIso(packet);
                break;
              default:
                ASSERT(false);
                break;
            }
          },
          [this]() {
            INFO(id_, "HCI transport closed");
            Close();
          });
}

void HciDevice::Tick() {
  transport_->Tick();
  DualModeController::Tick();
}

void HciDevice::Close() {
  transport_->Close();
  DualModeController::Close();
}

}  // namespace rootcanal