package com.gszc.service;

import com.alibaba.fastjson.JSONObject;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.text.DecimalFormat;

@Service
public class CountService {

    public JSONObject VATCount(String companyType,String invoiceType,String taxType,double money) throws Exception{

        JSONObject result = new JSONObject();
        switch (companyType){
            case "1": //有限公司
            case "2": //个人独资企业
            case "3": //合伙人企业
                result = VATCountDetail(invoiceType,taxType, money);
                break;
            case "4": //个体工商户，纳税性质只有小规模纳税人
                result = VATCountDetail(invoiceType,"1", money);
                break;
            default:
                throw new Exception("公司类型不正确");
        }
        return result;
    }

    private JSONObject VATCountDetail(String invoiceType,String taxType,double money) throws Exception{
        if(money <= 0){
            throw new Exception("金额须大于0");
        }
        JSONObject jsonObject = new JSONObject();
        double result = 0;
        double rate = 0;
        switch (taxType){
            case "1":
                rate = 0.033;
                break;
            case "2":
                rate = 0.066;
                break;
            case "3":
                rate = 0.143;
                break;
            default:
                throw new Exception("纳税性质不正确");
        }

        if(invoiceType.equals("1")){//普票类型
            if(money <= 300000){
                rate = 0;
            }
            result = money * rate;
        }else if(invoiceType.equals("2")){//专票类型
            result = money * rate;
        }else {
            throw new Exception("开票类型不正确");
        }

        BigDecimal b = new BigDecimal(result);
        BigDecimal r = new BigDecimal(rate * 100);

        BigDecimal keep = b.setScale(2, BigDecimal.ROUND_HALF_UP);
        BigDecimal ratePercent = r.setScale(2, BigDecimal.ROUND_HALF_UP);

        jsonObject.put("money",keep);
        jsonObject.put("rate",ratePercent);
        return jsonObject;
    }

    public BigDecimal PITCount(String type,String produceType,double money) throws Exception{
        double result = 0;
        if(type.equals("1")){
            double amount=money-5000;
            double a = 36000 * 0.03-2520,
                    b = (144000 - 36000) * 0.10-16920,
                    c = (300000 - 144000) * 0.20-31920,
                    d = (420000 - 300000) * 0.25-52920,
                    e = (660000 - 420000) * 0.30-85920,
                    f = (960000 - 660000) * 0.35-181920;
            if(amount<=36000){
                result = result + amount * 0.03;
            }
            if(amount>36000&&amount<=144000){
                result = result+(amount-36000)*0.10+a;
            }
            if(amount>144000&&amount<=300000){
                result = result+(amount-144000)*0.20+a+b;
            }
            if(amount>300000&&amount<=420000){
                result = result+(amount-300000)*0.25+a+b+c;
            }
            if(amount>420000&&amount<=660000){
                result = result+(amount-420000)*0.30+a+b+c+d;
            }
            if(amount>660000&&amount<=960000){
                result = result+(amount-660000)*0.35+a+b+c+d+e;
            }
            if(amount>960000){
                result = result+(amount-960000)*0.45+a+b+c+d+e+f;
            }

        }else if(type.equals("2")){
            double a = 30000/1.03*0.05,
                    b=(90000-30000)/1.03*0.10,
                    c=(300000-90000)/1.03*0.20,
                    d=(500000-300000)/1.03*0.30;
            if(produceType.equals("1")){//核定征收

                if(money<=30000){
                    result = result + money/1.03*0.05;
                }
                if(money>30000&&money<=90000){
                    result = result + money/1.03*0.10+a;
                }
                if(money>90000&&money<=300000){
                    result = result + money/1.03*0.20+a+b;
                }
                if(money>300000&&money<=500000){
                    result = result + money/1.03*0.30+a+b+c;
                }
                if(money>500000){
                    result = result + money/1.03*0.35+a+b+c+d;
                }

            }else if(produceType.equals("2")){//累进税率
                if(money<=30000){
                    result = result + money/1.03*0.05;
                }
                if(money>30000&&money<=90000){
                    result = result + (money-30000)/1.03*0.10+(a-1500);
                }
                if(money>90000&&money<=300000){
                    result = result + (money-90000)/1.03*0.20+a-1500+b-10500;
                }
                if(money>300000&&money<=500000){
                    result = result + (money-300000)/1.03*0.30+a-1500+b-10500+c-40500;
                }
                if(money>500000){
                    result = result + (money-500000)/1.03*0.35+a+b+c+d-1500-10500-40500-65500;
                }
            }else{
                throw new Exception("方式类型不正确");
            }

        }else {
            throw new Exception("专票类型不正确");
        }
        BigDecimal b = new BigDecimal(result);
        return b.setScale(2, BigDecimal.ROUND_HALF_UP);
    }

}