#ifndef STRINGUTILITY_H
#define STRINGUTILITY_H

#include <string>
#include <vector>

namespace std {

template <class CharT, class Traits>
std::basic_string<CharT, Traits> to_string(const std::basic_string_view<CharT, Traits> &str) {
    return std::basic_string<CharT, Traits>(str.begin(), str.end());
}

} // namespace std

namespace Amass {

namespace StringUtility {

template <typename CharT>
std::vector<std::basic_string<CharT>> split(const std::basic_string<CharT> &string,
                                            const std::basic_string_view<CharT> &delimiter) {
    std::vector<std::basic_string<CharT>> ret;
    if (delimiter.empty() || string.empty()) return ret;
    auto buf = string;
    size_t pos = std::string::npos;
    size_t delimiterLength = delimiter.length();
    while (true) {
        pos = buf.find(delimiter);
        if (pos != std::basic_string<CharT>::npos) {
            auto substr = buf.substr(0, pos);
            if (!substr.empty()) ret.push_back(substr);
            buf = buf.substr(pos + delimiterLength);
        } else {
            if (!buf.empty()) ret.push_back(buf);
            break;
        }
    }
    return ret;
}

inline std::vector<std::string> split(const std::string &string, const std::string_view &delimiter) {
    return split<char>(string, delimiter);
}

std::string &replace(std::string &string, const std::string &before, const std::string &after);

template <typename CharT>
std::basic_string<CharT> trimmed(const std::basic_string<CharT> &string) {
    static const CharT *whitespace = std::is_same_v<CharT, char> ? reinterpret_cast<const CharT *>("\t\n\v\f\r ")
                                                                 : reinterpret_cast<const CharT *>(L"\t\n\v\f\r ");
    auto begin = string.find_first_not_of(whitespace);
    if (begin == std::basic_string<CharT>::npos) return std::basic_string<CharT>();
    auto end = string.find_last_not_of(whitespace);
    if (end == std::basic_string<CharT>::npos) return std::basic_string<CharT>();
    return string.substr(begin, end - begin + 1);
}
bool equal(std::string_view lhs, std::string_view rhs, bool caseSensitivity = true);
size_t utf8Length(const std::string &text);
std::string_view utf8At(const std::string &text, size_t index);
size_t utf8CharacterByteSize(const char *character);
std::wstring stringToWString(const std::string &string);
std::string wstringToString(const std::wstring &string);

} // namespace StringUtility

} // namespace Amass

#endif // STRINGUTILITY_H