#include <linux/joystick.h>  
#include<fstream>
#include<iostream>
#include <thread>

enum class xbox_map{
    UP,
    DOWN,
    LEFT,
    RIGHT,
    X,
    Y,
    A,
    B,
    RESET,
    START,
    NONE
};

void judge_key(js_event& js,xbox_map& data_,int last_value);
using namespace std;

int main()
{

    xbox_map data_;
    int last_value;
    last_value=10;
    const char* file="/dev/input/js0";
    ifstream fin;
    fin.open(file,ios_base::binary | ios_base::in);
    struct js_event js;
    fstream data;
    data.open("data.txt",ios::out|ios::binary);
    while (1)
    {
        fin.read((char *) &js,sizeof(js));
        cout<<"time:"<<(int)js.time<<endl<<"number:"<<(int)js.number<<endl<<"type:"<<(int)js.type<<endl<<"value:"<<(int)js.value<<endl;
        judge_key(js,data_,last_value);
        last_value=js.value;
        cout<<"last_value:"<<last_value<<endl;
        cout<<endl;
        // data<<(int)js.number<<endl;
    }
    return -1;
}

 void judge_key(js_event& js,xbox_map& data_,int last_value)
  {
    if(js.type==1)
    {
      switch (js.number)
      {
        case 0:
        {
          if(last_value==0&&js.value==1)
          data_=xbox_map::A;
          else data_=xbox_map::NONE;
          break;
        }
        case 1: 
        {
          if(last_value==0&&js.value==1)
          data_=xbox_map::B;
          else
          data_=xbox_map::NONE;
          break;
        }
        case 2: 
        {
          if(last_value==0&&js.value==1)
          data_=xbox_map::X;
          else
          data_=xbox_map::NONE;
          break;
        }
        case 3:
        {
          if(last_value==0&&js.value==1) 
          data_=xbox_map::Y;
          else
          data_=xbox_map::NONE;
          break;        
        }
        
        case 6: 
        {
          if(last_value==0&&js.value==1)
          data_=xbox_map::START;
          else
          data_=xbox_map::NONE;
          break;
        }
        default:
        {
          data_=xbox_map::NONE;
          break;
        }

      }
    }
    else if(js.type==2)
    {
      switch(js.number)
      {
        case 6:{
          if(last_value==0&&js.value==32767)
          data_=xbox_map::DOWN;
          else if(last_value==0&&js.value==-32767)
          data_=xbox_map::UP;
          else
          data_=xbox_map::NONE;
          break;
        }

        case 7:{
          if(last_value==-0&&js.value==-32767)
          {
            data_=xbox_map::LEFT;
          }
          else if(last_value==0&&js.value==32767)
          data_=xbox_map::RIGHT;
          else
          data_=xbox_map::NONE;
          break;
        }

        default: 
        {
            data_=xbox_map::NONE;
            break;
        } 
      }
    }
    else{
      data_=xbox_map::NONE;
    }

  cout<<"(int)data_:"<<(int)data_<<endl;

  }