#ifndef SHELL_H
#define SHELL_H
#include <iostream>
#include <sys/wait.h>
#include <unistd.h>
#include <cstdlib>
#include <sstream>
#include <string>
#include <cstring>
#include <vector>
#include <csignal>
#include <commands.h>
using std::string;
using std::cin;
using std::cout;
using std::cerr;
using std::string;
using std::vector;
using std::istringstream;
using std::nullptr_t;

class Shell
{
    static bool undoingLine;
    Commands cmds;
    string ps;
    string name;
    void (*shellSetup)(Shell *);

    class IsUndoingLineException {};

    int launch(vector<string>* args);
    int execute(vector<string>* args);
    static void EofHandler(int);
    string* read_line();
    vector<string>* split_line(string* line);
public:
    Shell( string n="msh", string ps="MSH$",void (*s)(Shell*)=0);
    string getPs() const;
    void setPs(const string &value);
    string getName() const;
    void setName(const string &value);
    void loop();

    //for in-shell commands
    void addCmd(Command *cmd);
    size_t howManyCmds();
};

#endif // SHELL_H