#include "shell.h"

Shell::Commands::Commands()
{
    if(created) throw CommandsAlreadyCreatedException();
    created=true;
}

void Shell::Commands::add(Command* cmd){
    commands.push_back(cmd);
}

size_t Shell::Commands::howMany(){
    return commands.size();
}

int Shell::Commands::launch(const vector<string>* args){
    for(unsigned int i=0; i<commands.size(); i++){
        if((commands[i]->getName())==args->operator [](0)){
            return commands[i]->execute(args);
        }
    }
    throw CommandNotFoundException();
}

bool Shell::Commands::created = false;