#include "of_util.h"
#include <chrono>
#include <iomanip>
#include <sstream>

namespace ofen {
void CMutBuffer::push(const char* data, int len)
{
    std::lock_guard<std::mutex> lock(mutex_);
    buffer_.insert(buffer_.end(), data, data + len);
}
int CMutBuffer::index_of(const char* data, int len, int start_pos)
{
    std::lock_guard<std::mutex> lock(mutex_);
    if (start_pos < 0 || start_pos >= static_cast<int>(buffer_.size()) || len <= 0) {
        return -1;
    }
    auto it = std::search(buffer_.begin() + start_pos, buffer_.end(), data, data + len);
    if (it != buffer_.end()) {
        return std::distance(buffer_.begin(), it);
    }
    return -1;
}
void CMutBuffer::remove_of(int start_pos, int len)
{
    std::lock_guard<std::mutex> lock(mutex_);
    if (start_pos < 0 || start_pos >= static_cast<int>(buffer_.size()) || len <= 0) {
        return;
    }
    auto end_pos = std::min(start_pos + len, static_cast<int>(buffer_.size()));
    buffer_.erase(buffer_.begin() + start_pos, buffer_.begin() + end_pos);
}

const char* CMutBuffer::get_data() const
{
    return buffer_.data();
}

int CMutBuffer::get_len() const
{
    return static_cast<int>(buffer_.size());
}

void CMutBuffer::clear()
{
    std::lock_guard<std::mutex> lock(mutex_);
    buffer_.clear();
}
OfUtil::OfUtil()
{
}
OfUtil::~OfUtil()
{
}
ofString OfUtil::now_time()
{
    auto now = std::chrono::system_clock::now();
    auto time_t_now = std::chrono::system_clock::to_time_t(now);
    std::tm tm_now;
#if defined(_WIN32) || defined(_WIN64)
    localtime_s(&tm_now, &time_t_now);
#else
    localtime_r(&time_t_now, &tm_now);
#endif
    std::ostringstream oss;
    oss << std::put_time(&tm_now, "%Y-%m-%d %H:%M:%S");
    return oss.str();
}
}   // namespace ofen