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

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

#include <algorithm>
#include <string>
#include <regex>

NS_IAP_BEGIN

IAPUserData* IAPUserData::_instance = nullptr;

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

void IAPUserData::init(){
    
}

void IAPUserData::addBuyInfo(std::string commodityID){
    buyInfos.push_back(commodityID);
}

UserBuyType IAPUserData::getUserBuyType(){
    // 如果没有购买记录
    if(buyInfos.size() == 0) return UserBuyType::NoShopping;
    
    auto conf = IAPConf::getInstance();
    vector<GoodsInfo> goodInfos;
    conf->getAllGoods(goodInfos);
    
    struct SortVec{
        std::string id;
        float price;
        bool isSpecial;
    };
    vector<SortVec> vec;
    
    std::regex re(R"(\d+(\.\d{1,2})?)");  // 匹配整数或最多两位小数的数字
    for(const auto& goodInfo : goodInfos){
        bool isSpecial = goodInfo.style == "special" ? true : false;
        std::smatch match;
        if (std::regex_search(goodInfo.cost, match, re)) {
            SortVec sv;
            sv.id = goodInfo.id;
            sv.price = std::stof(match[0]);    // 提取价格
            sv.isSpecial = isSpecial;
            vec.push_back(sv);
        } else {
            log("IAPUserData::getUserBuyType : 转换失败");
        }
    }
    // 按照价格排序 , 价格相同按照是否为special商品排序
    sort(vec.begin(), vec.end(), [](SortVec a,SortVec b){
        if(std::fabs(a.price - b.price) < 1e-9) return a.price < b.price;
        if(a.isSpecial)return true;
        if(b.isSpecial)return false;
        return true;
    });
    
    bool onlySpecial = true;
    bool isBuyExpensive = false;
    for(const auto& buyInfo : buyInfos){
        
        for(size_t i = 0; i < vec.size(); i++){
            if(buyInfo != vec[i].id)continue;
            if(!vec[i].isSpecial) onlySpecial = false;
            if(i == vec.size() - 1) isBuyExpensive = true;
        }
        
    }
    
    // 购买过最贵商品
    if(isBuyExpensive)return UserBuyType::LotShopping;
    // 仅购买Special商品
    if(onlySpecial)return UserBuyType::LittleShopping;
    // 正常购物
    return UserBuyType::NormalShopping;
}

NS_IAP_END