#pragma once
#include <Arduino.h>

// Stand-in for the TMRh20 RF24 library. Enum values match RF24 1.x so the
// static_asserts in Comms.cpp still check HexapodProtocol.h.
enum rf24_pa_dbm_e { RF24_PA_MIN = 0, RF24_PA_LOW, RF24_PA_HIGH, RF24_PA_MAX, RF24_PA_ERROR };
enum rf24_datarate_e { RF24_1MBPS = 0, RF24_2MBPS, RF24_250KBPS };

// A simulated radio. Packets the simulation puts "on air" (hxsim_radio_send)
// are only received if this radio's channel, data rate, address and static
// payload size match the sender's, just like the real nRF24L01. The RX FIFO
// holds 3 packets; extra packets are dropped.
class RF24 {
public:
  RF24(uint16_t ce_pin, uint16_t csn_pin) { (void)ce_pin; (void)csn_pin; }
  bool begin();
  bool isChipConnected();
  void setPayloadSize(uint8_t size) { payload_size_ = size > 32 ? 32 : size; }
  void openReadingPipe(uint8_t pipe, const uint8_t* address);
  void openWritingPipe(const uint8_t*) {}
  void setPALevel(rf24_pa_dbm_e, bool = true) {}
  bool setDataRate(rf24_datarate_e rate) { data_rate_ = rate; return true; }
  void setChannel(uint8_t ch) { channel_ = ch > 125 ? 125 : ch; }
  void setRetries(uint8_t, uint8_t) {}
  void startListening() { listening_ = true; }
  void stopListening() { listening_ = false; }
  bool available();
  void read(void* buf, uint8_t len);
  bool write(const void*, uint8_t) { return false; }   // the robot never transmits

private:
  uint8_t payload_size_ = 32;
  uint8_t channel_ = 76;
  rf24_datarate_e data_rate_ = RF24_1MBPS;
  uint8_t address_[5] = {};
  bool pipe_open_ = false;
  bool listening_ = false;
};