#pragma once

#include <vector>

#include "imgui.h"
#include "tools/cabana/dbc/dbc.h"
#include "tools/cabana/streams/abstractstream.h"

class Sparkline {
public:
  void update(const cabana::Signal *sig, CanEventIter first, CanEventIter last, int range, ImVec2 sz, double window_end);
  inline double freq() const { return freq_; }
  bool isEmpty() const { return render_points_.empty(); }

  void draw(ImDrawList *draw_list, ImVec2 pos) const;

  ImVec2 size = {};
  double min_val = 0;
  double max_val = 0;

private:
  struct Point {
    double x, y;
  };
  void render(const CabanaColor &color, int range, ImVec2 sz, double window_end);

  std::vector<Point> points_;
  std::vector<ImVec2> render_points_;
  ImU32 color_ = 0;
  double window_end_ = 0;
  double xscale_ = 0;
  bool draw_individual_points_ = false;
  double freq_ = 0;
};