//
//  IAPUserData.cpp
//  TileManor
//
//  Created by 徐炼新 on 2024/9/30.
//

#include "IAPUserData.hpp"
#include "IAPConf.hpp"

NS_IAPSHOP_BEGIN

IAPUserData* IAPUserData::_instance = nullptr;

IAPUserData* IAPUserData::getInstance(){
    if(!_instance){
        _instance = new IAPUserData();
    }
    return _instance;
}

IAPUserData::IAPUserData(){
    init();
}

IAPUserData::~IAPUserData() {
    saveVectorString(_buyInfos, "buyInfos");
}

void IAPUserData::init(){
    // 提取用户本地购买信息
    _buyInfos = loadVectorString("buyInfos");
}

void IAPUserData::addBuyInfo(std::string commodityID){
    _buyInfos.push_back(commodityID);
    
    saveVectorString(_buyInfos, "buyInfos");
}

void IAPUserData::addBuyInfo(std::vector<std::string> commodityIDs){
    for(const auto& commodityID : commodityIDs){
        _buyInfos.push_back(commodityID);
    }
    
    saveVectorString(_buyInfos, "buyInfos");
}

std::vector<std::string> IAPUserData::getBuyInfos(){
    return _buyInfos;
}

void IAPUserData::clearBuyInfo(){
    _buyInfos.clear();
    
    saveVectorString(_buyInfos, "buyInfos");
}

// 序列化 vector<string> 为单个字符串
std::string IAPUserData::serialize(const std::vector<std::string>& vec) {
    std::ostringstream oss;
    for (size_t i = 0; i < vec.size(); ++i) {
        if (i != 0) oss << ",";  // 使用逗号作为分隔符
        oss << vec[i];
    }
    return oss.str();
}

// 反序列化单个字符串为 vector<string>
std::vector<std::string> IAPUserData::deserialize(const std::string& str) {
    std::vector<std::string> vec;
    std::istringstream iss(str);
    std::string item;
    while (std::getline(iss, item, ',')) {  // 以逗号为分隔符
        vec.push_back(item);
    }
    return vec;
}

// 保存 vector<string>
void IAPUserData::saveVectorString(const std::vector<std::string>& vec, const std::string& key) {
    auto userDefault = cocos2d::UserDefault::getInstance();
    std::string serializedData = serialize(vec);
    userDefault->setStringForKey(key.c_str(), serializedData);
    userDefault->flush();
}

// 读取 vector<string>
std::vector<std::string> IAPUserData::loadVectorString(const std::string& key) {
    auto userDefault = cocos2d::UserDefault::getInstance();
    std::string serializedData = userDefault->getStringForKey(key.c_str(), "");
    return deserialize(serializedData);
}


NS_IAPSHOP_END