#pragma once

#include <array>
#include <vector>

namespace roro {

struct ChannelSighting {
    int channel;
    int rssi;
};

// How crowded each 2.4 GHz Wi-Fi channel (1..13) is, from the access points a scan saw. A 20 MHz
// network spills onto the channels up to two away, less the further it is; a strong signal
// counts more than a faint one. Index 0 is unused.
std::array<float, 14> channelLoad(const std::vector<ChannelSighting>& sightings);

// The least crowded of the non-overlapping channels 1, 6 and 11 (the lowest on a tie).
int quietestChannel(const std::array<float, 14>& load);

}  // namespace roro