#pragma once

#include <cstddef>
#include <cstdint>
#include <vector>

namespace roro::lora {

// What a Sweep pass says about the band (M3, Q98): one RSSI reading (dBm) per step.
struct SweepPeak {
    uint32_t hz;
    int dbm;
};
struct SweepStats {
    int floor = 0;  // the median: the band's noise floor, whatever a few signals do
    int top = 0;    // the strongest reading
    std::vector<SweepPeak> peaks;  // at most 3, strongest first, each a local maximum >= 10 dB above the floor
};

SweepStats summarize(const int8_t* dbm, size_t steps, uint32_t fromHz, uint32_t stepHz);

// The waterfall's colours: a reading between `low` and `high` dBm as 0..255, then RGB565 along
// black, blue, cyan, green, yellow, red.
uint8_t heatLevel(int dbm, int low, int high);
uint16_t heatColor(uint8_t level);

}  // namespace roro::lora