status_page_item.h

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#ifndef SENSESP_UI_UI_OUTPUT_H
#define SENSESP_UI_UI_OUTPUT_H
 
#include <ArduinoJson.h>
#include <functional>
#include <map>
 
#include "Arduino.h"
#include "sensesp/system/observablevalue.h"
#include "sensesp/system/valueconsumer.h"
#include "sensesp/system/valueproducer.h"
 
namespace sensesp {
 
constexpr char kUIOutputDefaultGroup[] = "Default";
constexpr int kUIOutputDefaultOrder = 1000;
 
class StatusPageItemBase {
 public:
  StatusPageItemBase(String name, String group, int order)
      : name_(name), group_(group), order_(order) {}
 
  String& get_name() { return name_; }
 
  virtual JsonDocument as_json() = 0;
 
  static const std::map<String, StatusPageItemBase*>* get_status_page_items() {
    return &status_page_items_;
  }
 
 protected:
  String name_;
  String group_ = kUIOutputDefaultGroup;
  int order_ = kUIOutputDefaultOrder;
  static std::map<String, StatusPageItemBase*> status_page_items_;
};
 
template <typename T>
class StatusPageItem : public StatusPageItemBase, public ObservableValue<T> {
 public:
  StatusPageItem(String name, const T& value, String group, int order)
      : StatusPageItemBase(name, group, order), ObservableValue<T>(value) {
          status_page_items_[name] = this;
  }
 
  protected:
    virtual JsonDocument as_json() override{
    JsonDocument obj;
    obj["name"] = name_;
    obj["value"] = this->get();
    obj["group"] = group_;
    obj["order"] = order_;
    return obj;
  }
};
 
}  // namespace sensesp
 
#endif