using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace ProgramCalculator
{
    /// <summary>
    /// 翻譯單元,負責數學表達式與CSharp表達式之間的轉化等操作
    /// </summary>
    class TranslateUnit
    {
        /// <summary>
        /// 將數學表達式轉化為C#程序
        /// </summary>
        /// <param name="express">用戶輸入的數學表達式</param>
        /// <returns>返回C#程序</returns>
        public static string TranslateToCSharp(string express)
        {
            string s = "";
            if (File.Exists(Function.GetPathOfFunctionDll()))
            {
                s += "using "+Function.FunctionNameSpace + ";\n";
            }
             
            s += 
             "using System;\n" +
             "namespace ComputeUnit\n" +
             "{\n" +
                "public class Compute\n" +
                "{\n" +
                "   public static double GetResult()\n" +
                "   {\n" +
                "      return "+  TranslateToCSharpExpress(express) + ";\n"+
                "   }\n" +
                "}" +
            "}\n";

            return s;

        }

        /// <summary>
        /// 將數學表達式,轉化為C#表達式
        /// </summary>
        /// <param name="mathExpress"></param>
        /// <returns></returns>
        private static string TranslateToCSharpExpress(string mathExpress)
        {
           //未完成的功能,TranslateToCSharpExpress
            return mathExpress;
        }
    }
}