using System;
using UnityEngine;

namespace GFGGame
{
    public class NumberUtil
    {

        public static string GetChiniseNumberText(int num)
        {
            int numInUnit = 0;
            int numInTen = 0;
            string strInUnit = "";
            string strInTen = "";
            if (num == 0)
            {
                return "零";
            }
            if (num <= 10)
            {
                return GameConst.CHINESE_NUMBER[num - 1];
            }
            else if (num < 20)
            {
                numInUnit = num - 10;
                strInUnit = GameConst.CHINESE_NUMBER[numInUnit - 1];
                return "十" + strInUnit;
            }
            else if (num < 100)
            {
                numInTen = Mathf.FloorToInt(num / 10);
                strInTen = GameConst.CHINESE_NUMBER[numInTen - 1];
                numInUnit = num % 10;
                if (numInUnit == 0)
                {
                    return strInTen + "十";
                }
                else
                {
                    strInUnit = GameConst.CHINESE_NUMBER[numInUnit - 1];
                    return strInTen + "十" + strInUnit;
                }
            }
            return "未知";
        }
        public static string GetOldChiniseNumberText(int num)
        {
            int numInUnit = 0;
            int numInTen = 0;
            string strInUnit = "";
            string strInTen = "";
            if (num == 0)
            {
                return "零";
            }
            if (num <= 10)
            {
                return GameConst.CHINESE_NUMBER_OLD[num - 1];
            }
            else if (num < 20)
            {
                numInUnit = num - 10;
                strInUnit = GameConst.CHINESE_NUMBER_OLD[numInUnit - 1];
                return "拾" + strInUnit;
            }
            else if (num < 100)
            {
                numInTen = Mathf.FloorToInt(num / 10);
                strInTen = GameConst.CHINESE_NUMBER_OLD[numInTen - 1];
                numInUnit = num % 10;
                if (numInUnit == 0)
                {
                    return strInTen + "拾";
                }
                else
                {
                    strInUnit = GameConst.CHINESE_NUMBER_OLD[numInUnit - 1];
                    return strInTen + "拾" + strInUnit;
                }
            }
            return "未知";
        }
        public static string GetChiniseNumberWeekText(int num)
        {
            if (num >= 0 && num < GameConst.CHINESE_NUMBER.Length)
            {
                return GameConst.CHINESE_WEEK_NUMBER[num];
            }
            return "未知";
        }

        public static string ChangeNumberUnit(int num, int unit = 10000)
        {
            int count = num / unit;
            if (count > 0)
            {
                return string.Format("{0}万", count);
            }
            return num.ToString();
        }

        /// <summary>
        /// 计算折扣-- 一位小数向上取整
        /// </summary>
        /// <param name="originalPrice">原始的价格</param>
        /// <param name="discountedPrice">现在的价格</param>
        /// <returns></returns>
        public static string CalculateDiscount(double originalPrice, double discountedPrice)
        {
            double discountRate = discountedPrice / originalPrice;
            double doubleNum = Math.Ceiling(discountRate * 100) / 10;
            var roundedNumStr = doubleNum.ToString("0.0");
            return roundedNumStr;
        }
    }
}