#include <iostream>
#include <string>
#include <stdio.h>
#include <cstring>
#include <map>
#include <stdlib.h>
#include <sstream>

using namespace std;

// Routing Table
// Wird später zur Laufzeit aus der Konfiguration geladen
map <string, string> routes;
map <string, string> ::iterator el;

// Basis Responseklasse
class Response{
    private: stringstream body_stream;
    public:string body(){
        body_stream.str("Das ist der Body der Baisklasse");
        return body_stream.str();
    };
    
    public: stringstream header_stream;
    public:void set_header(const string header){
        header_stream << header << "\n";
    };
    public: string get_header(){
        header_stream << "\n\n";
        return header_stream.str();
    }
};

class Foo : public Response{
    private: stringstream body_stream;
    public:string body(){
        body_stream.str("Das ist der Body der Klasse Foo");
        return body_stream.str();
    };
    public: string header(){
        this->set_header("Content-Type: text/plain");
        return this->get_header();
    };
};

class Bar : public Response{
    private: stringstream body_stream;
    public:string body(){
        body_stream.str("Das ist der Body der Klasse Bar");
        return body_stream.str();
    };
    public: string header(){
        this->set_header("Content-Type: text/plain; charset=UTF-8");
        return this->get_header();
    };
};

class NotFound : public Response{
    private: stringstream body_stream;
    public:string body(){
        body_stream.str("Die Seite wurde nicht gefunden");
        return body_stream.str();
    };
    public: string header(){
        this->set_header("Status: 404");
        this->set_header("Content-Type: text/html; charset=utf-8");
        return this->get_header();
    }    
};


int main(){
    string ns = "Foo";
    
    string url = getenv("REDIRECT_URL") ? getenv("REDIRECT_URL") : "/qwertz.chtml";
    // Diese Konfiguration wird später zur Laufzeit geladen
    routes["/foo.chtml"] = "Foo";
    routes["/bar.chtml"] = "Bar";
    string classname = routes[url];
    
    if( ! classname.compare("Foo") ){
        Foo *response = new Foo;
        cout << response->header();
        cout << response->body();
    }    
    else if( ! classname.compare("Bar") ){
        Bar *response = new Bar;
        cout << response->header();
        cout << response->body();
    }    
    else{
        NotFound *response = new NotFound;
        cout << response->header();
        cout << response->body();
    }

    return 0;  
}

     classname *response = new classname; // classname variabel
     cout << response->header();
     cout << response->body();