MicroJSON.h

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/*
 * This is a part of the Uniot project.
 * Copyright (C) 2016-2025 Uniot <contact@uniot.io>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <Arduino.h>


 
namespace uniot {
namespace JSON {
 
class Array;

class Object {
 public:
  Object(String &out) : mOut(out), mFirst(true) {
    mOut += "{";
  }

  inline Object &put(const String &key, const String &value, bool quote = true) {
    _begin(key);
    mOut += (quote ? "\"" + value + "\"" : value);
    return *this;
  }

  inline Object &put(const String &key, int value) {
    return put(key, String(value), false);
  }

  inline Array putArray(const String &key);

  inline Object putObject(const String &key);

  inline void close() {
    mOut += "}";
  }
 
 private:
  String &mOut;  
  bool mFirst;   

  inline void _begin(const String &key) {
    if (!mFirst) {
      mOut += ",";
    }
    mOut += "\"" + key + "\":";
    mFirst = false;
  }
};

class Array {
 public:
  Array(String &out) : mOut(out), mFirst(true) {
    mOut += "[";
  }

  inline Array &append(const String &value, bool quote = true) {
    _begin();
    mOut += (quote ? "\"" + value + "\"" : value);
    return *this;
  }

  inline Array &append(int value) {
    return append(String(value), false);
  }

  inline Array appendArray();

  Object appendObject();

  inline void close() {
    mOut += "]";
  }
 
 private:
  String &mOut;  
  bool mFirst;   

  inline void _begin() {
    if (!mFirst) mOut += ",";
    mFirst = false;
  }
};
 
inline Array Object::putArray(const String &key) {
  _begin(key);
  return Array(mOut);
}
 
inline Object Object::putObject(const String &key) {
  _begin(key);
  return Object(mOut);
}
 
inline Array Array::appendArray() {
  _begin();
  return Array(mOut);
}
 
inline Object Array::appendObject() {
  _begin();
  return Object(mOut);
}
 
}  // namespace JSON
}  // namespace uniot