#pragma once

#include <cstdint>
#include <deque>
#include <memory>
#include <mutex>
#include <vector>

#include "media/encoded_video_meta.h"

namespace rk3588 {

class PacketRingBuffer {
public:
    explicit PacketRingBuffer(int window_sec = 20, int fps_hint = 25);

    void Push(std::shared_ptr<EncodedVideoFrameMeta> meta);
    std::vector<std::shared_ptr<EncodedVideoFrameMeta>> GetPacketsInRange(int64_t start_pts_ms,
                                                                          int64_t end_pts_ms) const;
    int64_t LatestPtsMs() const;
    size_t Size() const;
    void Clear();

private:
    struct Entry {
        int64_t pts_ms = 0;
        std::shared_ptr<EncodedVideoFrameMeta> meta;
    };

    mutable std::mutex mu_;
    std::deque<Entry> buf_;
    size_t max_packets_ = 0;
    int64_t last_pts_ms_ = 0;
};

}  // namespace rk3588