#pragma once

#include "esphome/core/component.h"
#include "esphome/components/uart/uart.h"
#include "esphome/components/sensor/sensor.h"
#include <TinyGPS++.h>

namespace esphome {
namespace gps {

class GPS;

class GPSListener {
 public:
  virtual void on_update(TinyGPSPlus &tiny_gps) = 0;
  TinyGPSPlus &get_tiny_gps();

 protected:
  friend GPS;

  GPS *parent_;
};

class GPS : public PollingComponent, public uart::UARTDevice {
 public:
  void set_latitude_sensor(sensor::Sensor *latitude_sensor) { latitude_sensor_ = latitude_sensor; }
  void set_longitude_sensor(sensor::Sensor *longitude_sensor) { longitude_sensor_ = longitude_sensor; }
  void set_speed_sensor(sensor::Sensor *speed_sensor) { speed_sensor_ = speed_sensor; }
  void set_course_sensor(sensor::Sensor *course_sensor) { course_sensor_ = course_sensor; }
  void set_altitude_sensor(sensor::Sensor *altitude_sensor) { altitude_sensor_ = altitude_sensor; }
  void set_satellites_sensor(sensor::Sensor *satellites_sensor) { satellites_sensor_ = satellites_sensor; }

  void register_listener(GPSListener *listener) {
    listener->parent_ = this;
    this->listeners_.push_back(listener);
  }
  float get_setup_priority() const override { return setup_priority::HARDWARE; }

  void loop() override;
  void update() override;

  TinyGPSPlus &get_tiny_gps() { return this->tiny_gps_; }

 protected:
  float latitude_ = -1;
  float longitude_ = -1;
  float speed_ = -1;
  float course_ = -1;
  float altitude_ = -1;
  int satellites_ = -1;

  sensor::Sensor *latitude_sensor_{nullptr};
  sensor::Sensor *longitude_sensor_{nullptr};
  sensor::Sensor *speed_sensor_{nullptr};
  sensor::Sensor *course_sensor_{nullptr};
  sensor::Sensor *altitude_sensor_{nullptr};
  sensor::Sensor *satellites_sensor_{nullptr};

  bool has_time_{false};
  TinyGPSPlus tiny_gps_;
  std::vector<GPSListener *> listeners_{};
};

}  // namespace gps
}  // namespace esphome
