//
// Copyright © 2017 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//

#pragma once

#include "ICounterDirectory.hpp"
#include "ICounterRegistry.hpp"

#include <string>
#include <unordered_set>
#include <unordered_map>

#include <common/include/NumericCast.hpp>

namespace arm
{

namespace pipe
{

class CounterDirectory final : public ICounterDirectory, public ICounterRegistry
{
public:
    CounterDirectory() = default;
    ~CounterDirectory() = default;

    // Register profiling objects
    const Category*   RegisterCategory  (const std::string& categoryName) override;
    const Device*     RegisterDevice    (const std::string& deviceName,
                                         uint16_t cores = 0,
                                         const arm::pipe::Optional<std::string>& parentCategoryName
                                         = arm::pipe::EmptyOptional()) override;
    const CounterSet* RegisterCounterSet(const std::string& counterSetName,
                                         uint16_t count = 0,
                                         const arm::pipe::Optional<std::string>& parentCategoryName
                                            = arm::pipe::EmptyOptional()) override;
    const Counter* RegisterCounter(const std::string& backendId,
        const uint16_t uid,
        const std::string& parentCategoryName,
        uint16_t counterClass,
        uint16_t interpolation,
        double multiplier,
        const std::string& name,
        const std::string& description,
        const arm::pipe::Optional<std::string>& units = arm::pipe::EmptyOptional(),
        const arm::pipe::Optional<uint16_t>& numberOfCores = arm::pipe::EmptyOptional(),
        const arm::pipe::Optional<uint16_t>& deviceUid = arm::pipe::EmptyOptional(),
        const arm::pipe::Optional<uint16_t>& counterSetUid = arm::pipe::EmptyOptional()) override;

    // Getters for counts
    uint16_t GetCategoryCount()   const override { return arm::pipe::numeric_cast<uint16_t>(m_Categories.size());  }
    uint16_t GetDeviceCount()     const override { return arm::pipe::numeric_cast<uint16_t>(m_Devices.size());     }
    uint16_t GetCounterSetCount() const override { return arm::pipe::numeric_cast<uint16_t>(m_CounterSets.size()); }
    uint16_t GetCounterCount()    const override { return arm::pipe::numeric_cast<uint16_t>(m_Counters.size());    }

    // Getters for collections
    const Categories&  GetCategories()  const override { return m_Categories;  }
    const Devices&     GetDevices()     const override { return m_Devices;     }
    const CounterSets& GetCounterSets() const override { return m_CounterSets; }
    const Counters&    GetCounters()    const override { return m_Counters;    }

    // Getters for profiling objects
    const Category*   GetCategory(const std::string& name) const override;
    const Device*     GetDevice(uint16_t uid) const override;
    const CounterSet* GetCounterSet(uint16_t uid) const override;
    const Counter*    GetCounter(uint16_t uid) const override;

    // Queries for profiling objects
    bool IsCategoryRegistered(const std::string& categoryName) const;
    bool IsDeviceRegistered(uint16_t deviceUid) const;
    bool IsDeviceRegistered(const std::string& deviceName) const;
    bool IsCounterSetRegistered(uint16_t counterSetUid) const;
    bool IsCounterSetRegistered(const std::string& counterSetName) const;
    bool IsCounterRegistered(uint16_t counterUid) const;
    bool IsCounterRegistered(const std::string& counterName) const;

    // Clears all the counter directory contents
    void Clear();

private:
    // The profiling collections owned by the counter directory
    Categories  m_Categories;
    Devices     m_Devices;
    CounterSets m_CounterSets;
    Counters    m_Counters;

    // Helper functions
    CategoriesIt  FindCategory(const std::string& categoryName) const;
    DevicesIt     FindDevice(uint16_t deviceUid) const;
    DevicesIt     FindDevice(const std::string& deviceName) const;
    CounterSetsIt FindCounterSet(uint16_t counterSetUid) const;
    CounterSetsIt FindCounterSet(const std::string& counterSetName) const;
    CountersIt    FindCounter(uint16_t counterUid) const;
    CountersIt    FindCounter(const std::string& counterName) const;
    uint16_t      GetNumberOfCores(const arm::pipe::Optional<uint16_t>& numberOfCores,
                                   uint16_t deviceUid);
};

} // namespace pipe

} // namespace arm