#pragma once

#if !defined(MIJIN_UTIL_STRING_HPP_INCLUDED)
#define MIJIN_UTIL_STRING_HPP_INCLUDED 1

#include <iterator>
#include <sstream>
#include <string>

namespace mijin
{

//
// public defines
//

//
// public constants
//

//
// public types
//

//
// public functions
//

template <typename TRange, typename TValue = typename TRange::value_type>
std::string join(const TRange& elements, const char* const delimiter)
{
    std::ostringstream oss;
    auto first = std::begin(elements);
    auto last = std::end(elements);

    if (first != last)
    {
        std::copy(first, std::prev(last), std::ostream_iterator<TValue>(oss, delimiter));
        first = std::prev(last);
    }
    if (first != last)
    {
        oss << *first;
    }

    return oss.str();
}

namespace pipe
{
struct Join
{
    const char* delimiter;

    explicit Join(const char* delimiter_) noexcept : delimiter(delimiter_) {}
};

template<typename TIterable>
auto operator|(TIterable&& iterable, const Join& joiner)
{
    return join(std::forward<TIterable>(iterable), joiner.delimiter);
}
}

} // namespace mijin

#endif // !defined(MIJIN_UTIL_STRING_HPP_INCLUDED)