#include "dbcc/message.h"

#include <algorithm>
#include <iostream>
#include <limits>

namespace ad {
namespace dbcc {

std::istream& operator>>(std::istream& in, Message& msg)
{
    // Parse the message ID.
    in >> msg.id_;

    // Parse the name of the message
    std::string name;
    in >> name;
    msg.name_ = name.substr(0, name.length() - 1);

    // Parse the message length
    in >> msg.dlc_;

    // Parse the sender
    in >> msg.from_;

    in.ignore(std::numeric_limits<std::streamsize>::max(), '\n');

    // As long as there is a signal, parse the signal
    while (in) {
        Signal sig;
        in >> sig;
        if (in) {
            msg.AppendSignal(sig);
        }
    }

    in.clear();
    return in;
}

std::set<std::string> Message::To() const
{
    std::set<std::string> collection;
    for (auto sig : signals_) {
        auto to_list = sig.To();
        collection.insert(to_list.begin(), to_list.end());
    }

    return collection;
}

} // namespace dbcc
} // namespace ad