#pragma once

#include <kinematics.h>
#include <message_types.h>

class MotionState {
  protected:
    virtual const char* name() const = 0;
    static constexpr const float (&default_feet_pos)[4][4] = KinConfig::default_feet_positions;
    body_state_t target_body_state;
    static constexpr float default_smoothing_factor = 0.06f;

    void lerpToBody(body_state_t& body_state, const float smoothing_factor = default_smoothing_factor) {
        body_state.xm = lerp(body_state.xm, target_body_state.xm, smoothing_factor);
        body_state.ym = lerp(body_state.ym, target_body_state.ym, smoothing_factor);
        body_state.zm = lerp(body_state.zm, target_body_state.zm, smoothing_factor);
        body_state.phi = lerp(body_state.phi, target_body_state.phi, smoothing_factor);
        body_state.psi = lerp(body_state.psi, target_body_state.psi, smoothing_factor);
    }

    void updateFeet(body_state_t& body_state, const float smoothing_factor = default_smoothing_factor) {
        if (target_body_state.feet != body_state.feet) {
            body_state.updateFeet(target_body_state.feet);
        }
    }

  public:
    virtual ~MotionState() {}

    virtual void begin() { ESP_LOGI("Gait Planner", "Starting %s", name()); }

    virtual void end() { ESP_LOGI("Gait Planner", "Ending %s", name()); }

    virtual void handleCommand(const CommandMsg& cmd) {}

    virtual void step(body_state_t& body_state, float dt = 0.02f) {}
};