#include "meshtastic_header.h"

#include <cstdio>

namespace roro::meshtastic {

static uint32_t le32(const uint8_t* p) { return p[0] | p[1] << 8 | p[2] << 16 | static_cast<uint32_t>(p[3]) << 24; }

bool parseHeader(const uint8_t* data, size_t len, PacketHeader& out) {
    if (!data || len < kHeaderSize) return false;
    out.to = le32(data);
    out.from = le32(data + 4);
    out.id = le32(data + 8);
    out.flags = data[12];
    out.channelHash = data[13];
    out.nextHop = data[14];
    out.relayNode = data[15];
    return true;
}

std::string nodeId(uint32_t node) {
    if (node == kBroadcast) return "all";
    char s[10];
    std::snprintf(s, sizeof s, "!%08x", static_cast<unsigned>(node));
    return s;
}

}  // namespace roro::meshtastic