/*
 * .============.
 * // M A K E / \
 * // C++ DEV / \
 * // E A S Y / \/ \
 * ++ ----------. \/\ .
 * \\ \ \ /\ /
 * \\ \ \ /
 * \\ \ \ /
 * -============'
 *
 * Copyright (c) 2025 Hevake and contributors, all rights reserved.
 *
 * This file is part of cpp-tbox (https://github.com/cpp-main/cpp-tbox)
 * Use of this source code is governed by MIT license that can be found
 * in the LICENSE file in the root of the source tree. All contributing
 * project authors may be found in the CONTRIBUTORS.md file in the root
 * of the source tree.
 */
#include "variables.h"

#include <tbox/base/json.hpp>

namespace tbox {
namespace util {

Variables::Variables() { }

Variables::~Variables() {
 CHECK_DELETE_RESET_OBJ(var_map_);
 parent_ = nullptr;
}

IMPL_COPY_FUNC(Variables)

IMPL_MOVE_RESET_FUNC(Variables)

void Variables::swap(Variables &other) {
 std::swap(var_map_, other.var_map_);
 std::swap(parent_, other.parent_);
}

void Variables::copy(const Variables &other) {
 parent_ = other.parent_;
 if (other.var_map_ != nullptr) {
 if (var_map_ == nullptr)
 var_map_ = new VariableMap;
 *var_map_ = *other.var_map_;
 }
}

bool Variables::define(const std::string &name, const Json &js_init_value) {
 if (var_map_ == nullptr)
 var_map_ = new VariableMap;

 auto result = var_map_->emplace(name, js_init_value);
 return result.second;
}

bool Variables::undefine(const std::string &name) {
 if (var_map_ == nullptr)
 return false;

 auto iter = var_map_->find(name);
 if (iter == var_map_->end())
 return false;

 var_map_->erase(iter);

 if (var_map_->empty())
 CHECK_DELETE_RESET_OBJ(var_map_);

 return true;
}

bool Variables::has(const std::string &name, bool local_only) const {
 if (var_map_ != nullptr) {
 auto iter = var_map_->find(name);
 if (iter != var_map_->end())
 return true;
 }

 //! 本节点找不到,就找父节点
 if (!local_only && parent_ != nullptr)
 return parent_->has(name);

 return false;
}

bool Variables::get(const std::string &name, Json &js_out_value, bool local_only) const {
 if (var_map_ != nullptr) {
 auto iter = var_map_->find(name);
 if (iter != var_map_->end()) {
 js_out_value = iter->second;
 return true;
 }
 }

 //! 本节点找不到,就找父节点
 if (!local_only && parent_ != nullptr)
 return parent_->get(name, js_out_value);

 return false;
}

bool Variables::set(const std::string &name, const Json &js_new_value, bool local_only) {
 if (var_map_ != nullptr) {
 auto iter = var_map_->find(name);
 if (iter != var_map_->end()) {
 iter->second = js_new_value;
 return true;
 }
 }

 //! 本节点找不到,就找父节点
 if (!local_only && parent_ != nullptr)
 return parent_->set(name, js_new_value);

 return false;
}

void Variables::toJson(Json &js) const {
 if (var_map_ != nullptr)
 js = *var_map_;
 else
 js = Json::object();
}

}
}