using connor_zwcadm.util;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ZwSoft.ZwCAD.ApplicationServices;

namespace connor_zwcadm.commands {
   public abstract class AbstractCADCommand {
      protected KCADUtil KCADUtil { get; }
      protected string File_Path { get; }

      protected AbstractCADCommand(string file_path, bool checkFile = true) {
         File_Path = file_path;
         if (!string.IsNullOrWhiteSpace(file_path) && file_path.Contains(":")) {
            KCADUtil = new KCADUtil(file_path);
         }
         else if(checkFile) {
            throw new Exception("请先使用cad保存文件后再进行操作");
         }
      }

      protected abstract void InitCommand();

      protected abstract void ExecuteCommand();

      protected void ClearCache() {
         if (KCADUtil != null) {
            KCADUtil.CloseDatabse();
         }
      }

      public void Execute() {
         InitCommand();
         try {
            ExecuteCommand();
         }
         finally {
            ClearCache();
         }
      }
   }
}