esphome-dev/esphome/components/template/number/template_number.cpp

#include "template_number.h"
#include "esphome/core/log.h"

namespace esphome {
namespace template_ {

static const char *const TAG = "template.number";

void TemplateNumber::setup() {
  if (this->f_.has_value() || !this->optimistic_)
    return;

  this->pref_ = global_preferences.make_preference<float>(this->get_object_id_hash());
  float value;
  if (!this->pref_.load(&value)) {
    if (!isnan(this->initial_value_))
      value = this->initial_value_;
    else
      value = this->traits.get_min_value();
  }
  this->publish_state(value);
}

void TemplateNumber::update() {
  if (!this->f_.has_value())
    return;

  auto val = (*this->f_)();
  if (!val.has_value())
    return;

  this->publish_state(*val);
}

void TemplateNumber::control(float value) {
  this->set_trigger_->trigger(value);

  if (this->optimistic_) {
    this->publish_state(value);
    this->pref_.save(&value);
  }
}
void TemplateNumber::dump_config() {
  LOG_NUMBER("", "Template Number", this);
  ESP_LOGCONFIG(TAG, "  Optimistic: %s", YESNO(this->optimistic_));
  LOG_UPDATE_INTERVAL(this);
}

}  // namespace template_
}  // namespace esphome