/*
 * Copyright (C) 2018 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.
 */

#pragma once

#include <memory>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>

#include <BootControlClient.h>
#include <aidl/android/hardware/fastboot/IFastboot.h>
#include <aidl/android/hardware/health/IHealth.h>

#include "commands.h"
#include "transport.h"
#include "variables.h"

class FastbootDevice {
  public:
    using BootControlClient = android::hal::BootControlClient;
    FastbootDevice();
    ~FastbootDevice();

    void CloseDevice();
    void ExecuteCommands();
    bool WriteStatus(FastbootResult result, const std::string& message);
    bool HandleData(bool read, std::vector<char>* data);
    bool HandleData(bool read, char* data, uint64_t size);
    std::string GetCurrentSlot();

    // Shortcuts for writing status results.
    bool WriteOkay(const std::string& message);
    bool WriteFail(const std::string& message);
    bool WriteInfo(const std::string& message);

    std::vector<char>& download_data() { return download_data_; }
    Transport* get_transport() { return transport_.get(); }
    BootControlClient* boot_control_hal() const { return boot_control_hal_.get(); }
    std::shared_ptr<aidl::android::hardware::fastboot::IFastboot> fastboot_hal() {
        return fastboot_hal_;
    }
    std::shared_ptr<aidl::android::hardware::health::IHealth> health_hal() { return health_hal_; }

    void set_active_slot(const std::string& active_slot) { active_slot_ = active_slot; }

  private:
    const std::unordered_map<std::string, CommandHandler> kCommandMap;

    std::unique_ptr<Transport> transport_;
    std::unique_ptr<BootControlClient> boot_control_hal_;
    std::shared_ptr<aidl::android::hardware::health::IHealth> health_hal_;
    std::shared_ptr<aidl::android::hardware::fastboot::IFastboot> fastboot_hal_;
    std::vector<char> download_data_;
    std::string active_slot_;
};
