#pragma once
#include <map>
#include <string>
#include <vector>

typedef int (*FUNCTION)(const std::string &s);

static std::vector<std::string> Verbs{"Quit", "Exit", "Go", "Move", "Look"};
static std::vector<std::string> Nouns{"Object", "Door", "North", "South", "East",
                                      "West",   "Up",   "Down",  "Left",  "right"};

class CommandParser {
private:
    std::map<std::string, FUNCTION> commands;

public:
    CommandParser();

    bool AddCommand(std::string c, FUNCTION f);
    void RemoveCommand(std::string c);

    std::vector<std::string> Verb(std::stringstream &sentences);
    std::vector<std::string> Noun(std::stringstream &sentences);

    inline friend void swap(CommandParser& lhs, CommandParser& rhs)
    {
        using std::swap;
        swap(lhs.commands, rhs.commands);
    }


    static inline void CommandUnrecognized() { printf("I don't know how to do that.\n"); }
    int Parse();
};