// SPDX-License-Identifier: LGPL-3.0-or-later
// ST4-ESP32: ESP32 ST-4 autoguider port controller
// Based on arduino-st4 by Kevin Ferrare

#pragma once

#include <cstdint>

enum class ST4Direction : uint8_t {
    PLUS,
    MINUS,
    STOP
};

enum class ST4AxisId : uint8_t {
    RA = 0,
    DECLINATION = 1
};

enum class ST4PinLogic : uint8_t {
    ACTIVE_HIGH,
    ACTIVE_LOW
};

// Sidereal rate constants (from ASCOM ArduinoST4 Constants.cs)
namespace ST4Constants {
    constexpr double DEGREES_PER_SECOND = 360.0 / (24.0 * 3600.0);
    constexpr double RA_PER_SECOND = 1.0 / 3600.0;

    // Default sidereal rate multipliers (from ASCOM Driver.cs)
    // RA+: 8x slew + 1x earth rotation = 9x
    // RA-: 8x slew - 1x earth rotation = 7x
    // DEC: symmetric 8x
    constexpr double DEFAULT_RA_RATE_PLUS = 9.0;
    constexpr double DEFAULT_RA_RATE_MINUS = 7.0;
    constexpr double DEFAULT_DEC_RATE_PLUS = 8.0;
    constexpr double DEFAULT_DEC_RATE_MINUS = 8.0;

    constexpr uint32_t DEFAULT_BAUD_RATE = 57600;
    constexpr uint16_t DEFAULT_WS_PORT = 81;
    constexpr uint16_t DEFAULT_HTTP_PORT = 80;

    constexpr char VERSION[] = "2026.02.17";
}

struct ST4AxisState {
    bool active;
    ST4Direction direction;
    double position;
};

struct ST4State {
    bool connected;
    ST4AxisState ra;
    ST4AxisState dec;
};

struct ST4RateConfig {
    double raPlusMultiplier;
    double raMinusMultiplier;
    double decPlusMultiplier;
    double decMinusMultiplier;
};