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#ifndef OPENCV_DNN_DNN_INL_HPP
#define OPENCV_DNN_DNN_INL_HPP

#include <opencv2/dnn.hpp>

namespace cv {
namespace dnn {
CV__DNN_EXPERIMENTAL_NS_BEGIN

template<typename TypeIter>
DictValue DictValue::arrayInt(TypeIter begin, int size)
{
    DictValue res(Param::INT, new AutoBuffer<int64, 1>(size));
    for (int j = 0; j < size; begin++, j++)
        (*res.pi)[j] = *begin;
    return res;
}

template<typename TypeIter>
DictValue DictValue::arrayReal(TypeIter begin, int size)
{
    DictValue res(Param::REAL, new AutoBuffer<double, 1>(size));
    for (int j = 0; j < size; begin++, j++)
        (*res.pd)[j] = *begin;
    return res;
}

template<typename TypeIter>
DictValue DictValue::arrayString(TypeIter begin, int size)
{
    DictValue res(Param::STRING, new AutoBuffer<String, 1>(size));
    for (int j = 0; j < size; begin++, j++)
        (*res.ps)[j] = *begin;
    return res;
}

template<>
inline DictValue DictValue::get<DictValue>(int idx) const
{
    CV_Assert(idx == -1);
    return *this;
}

template<>
inline int64 DictValue::get<int64>(int idx) const
{
    CV_Assert((idx == -1 && size() == 1) || (idx >= 0 && idx < size()));
    idx = (idx == -1) ? 0 : idx;

    if (type == Param::INT)
    {
        return (*pi)[idx];
    }
    else if (type == Param::REAL)
    {
        double doubleValue = (*pd)[idx];

        double fracpart, intpart;
        fracpart = std::modf(doubleValue, &intpart);
        CV_Assert(fracpart == 0.0);

        return (int64)doubleValue;
    }
    else if (type == Param::STRING)
    {
        return std::atoi((*ps)[idx].c_str());
    }
    else
    {
        CV_Assert(isInt() || isReal() || isString());
        return 0;
    }
}

template<>
inline int DictValue::get<int>(int idx) const
{
    return (int)get<int64>(idx);
}

inline int DictValue::getIntValue(int idx) const
{
    return (int)get<int64>(idx);
}

template<>
inline unsigned DictValue::get<unsigned>(int idx) const
{
    return (unsigned)get<int64>(idx);
}

template<>
inline bool DictValue::get<bool>(int idx) const
{
    return (get<int64>(idx) != 0);
}

template<>
inline double DictValue::get<double>(int idx) const
{
    CV_Assert((idx == -1 && size() == 1) || (idx >= 0 && idx < size()));
    idx = (idx == -1) ? 0 : idx;

    if (type == Param::REAL)
    {
        return (*pd)[idx];
    }
    else if (type == Param::INT)
    {
        return (double)(*pi)[idx];
    }
    else if (type == Param::STRING)
    {
        return std::atof((*ps)[idx].c_str());
    }
    else
    {
        CV_Assert(isReal() || isInt() || isString());
        return 0;
    }
}

inline double DictValue::getRealValue(int idx) const
{
    return get<double>(idx);
}

template<>
inline float DictValue::get<float>(int idx) const
{
    return (float)get<double>(idx);
}

template<>
inline String DictValue::get<String>(int idx) const
{
    CV_Assert(isString());
    CV_Assert((idx == -1 && ps->size() == 1) || (idx >= 0 && idx < (int)ps->size()));
    return (*ps)[(idx == -1) ? 0 : idx];
}


inline String DictValue::getStringValue(int idx) const
{
    return get<String>(idx);
}

inline void DictValue::release()
{
    switch (type)
    {
    case Param::INT:
        delete pi;
        break;
    case Param::STRING:
        delete ps;
        break;
    case Param::REAL:
        delete pd;
        break;
    }
}

inline DictValue::~DictValue()
{
    release();
}

inline DictValue & DictValue::operator=(const DictValue &r)
{
    if (&r == this)
        return *this;

    if (r.type == Param::INT)
    {
        AutoBuffer<int64, 1> *tmp = new AutoBuffer<int64, 1>(*r.pi);
        release();
        pi = tmp;
    }
    else if (r.type == Param::STRING)
    {
        AutoBuffer<String, 1> *tmp = new AutoBuffer<String, 1>(*r.ps);
        release();
        ps = tmp;
    }
    else if (r.type == Param::REAL)
    {
        AutoBuffer<double, 1> *tmp = new AutoBuffer<double, 1>(*r.pd);
        release();
        pd = tmp;
    }

    type = r.type;

    return *this;
}

inline DictValue::DictValue(const DictValue &r)
{
    type = r.type;

    if (r.type == Param::INT)
        pi = new AutoBuffer<int64, 1>(*r.pi);
    else if (r.type == Param::STRING)
        ps = new AutoBuffer<String, 1>(*r.ps);
    else if (r.type == Param::REAL)
        pd = new AutoBuffer<double, 1>(*r.pd);
}

inline bool DictValue::isString() const
{
    return (type == Param::STRING);
}

inline bool DictValue::isInt() const
{
    return (type == Param::INT);
}

inline bool DictValue::isReal() const
{
    return (type == Param::REAL || type == Param::INT);
}

inline int DictValue::size() const
{
    switch (type)
    {
    case Param::INT:
        return (int)pi->size();
    case Param::STRING:
        return (int)ps->size();
    case Param::REAL:
        return (int)pd->size();
    }
#ifdef __OPENCV_BUILD
    CV_Error(Error::StsInternal, "");
#else
    CV_ErrorNoReturn(Error::StsInternal, "");
#endif
}

inline std::ostream &operator<<(std::ostream &stream, const DictValue &dictv)
{
    int i;

    if (dictv.isInt())
    {
        for (i = 0; i < dictv.size() - 1; i++)
            stream << dictv.get<int64>(i) << ", ";
        stream << dictv.get<int64>(i);
    }
    else if (dictv.isReal())
    {
        for (i = 0; i < dictv.size() - 1; i++)
            stream << dictv.get<double>(i) << ", ";
        stream << dictv.get<double>(i);
    }
    else if (dictv.isString())
    {
        for (i = 0; i < dictv.size() - 1; i++)
            stream << "\"" << dictv.get<String>(i) << "\", ";
        stream << dictv.get<String>(i);
    }

    return stream;
}

/////////////////////////////////////////////////////////////////

inline bool Dict::has(const String &key) const
{
    return dict.count(key) != 0;
}

inline DictValue *Dict::ptr(const String &key)
{
    _Dict::iterator i = dict.find(key);
    return (i == dict.end()) ? NULL : &i->second;
}

inline const DictValue *Dict::ptr(const String &key) const
{
    _Dict::const_iterator i = dict.find(key);
    return (i == dict.end()) ? NULL : &i->second;
}

inline const DictValue &Dict::get(const String &key) const
{
    _Dict::const_iterator i = dict.find(key);
    if (i == dict.end())
        CV_Error(Error::StsObjectNotFound, "Required argument \"" + key + "\" not found into dictionary");
    return i->second;
}

template <typename T>
inline T Dict::get(const String &key) const
{
    return this->get(key).get<T>();
}

template <typename T>
inline T Dict::get(const String &key, const T &defaultValue) const
{
    _Dict::const_iterator i = dict.find(key);

    if (i != dict.end())
        return i->second.get<T>();
    else
        return defaultValue;
}

template<typename T>
inline const T &Dict::set(const String &key, const T &value)
{
    _Dict::iterator i = dict.find(key);

    if (i != dict.end())
        i->second = DictValue(value);
    else
        dict.insert(std::make_pair(key, DictValue(value)));

    return value;
}

inline void Dict::erase(const String &key)
{
    dict.erase(key);
}

inline std::ostream &operator<<(std::ostream &stream, const Dict &dict)
{
    Dict::_Dict::const_iterator it;
    for (it = dict.dict.begin(); it != dict.dict.end(); it++)
        stream << it->first << " : " << it->second << "\n";

    return stream;
}

inline std::map<String, DictValue>::const_iterator Dict::begin() const
{
    return dict.begin();
}

inline std::map<String, DictValue>::const_iterator Dict::end() const
{
    return dict.end();
}

CV__DNN_EXPERIMENTAL_NS_END
}
}

#endif