#include "game.h"

#include <iostream>
#include <sstream>

Game::Game(int id) : id_{ id }
{
}

void Game::push_back(const std::vector<int>& draw)
{
    draws.push_back(draw);
}

bool Game::is_valid(int blue, int red, int green) const
{
    for (const auto& draw : draws)
    {
        if (draw[0] > blue or draw[1] > red or draw[2] > green)
        {
            return false;
        }
    }
    return true;
}

int Game::power() const
{
    int blue{}, red{}, green{};
    for (const auto& draw : draws)
    {
        blue  = std::max(draw[0], blue);
        red   = std::max(draw[1], red);
        green = std::max(draw[2], green);
    }

    return blue * red * green;
}

std::string Game::to_string() const
{
    std::ostringstream out;
    out << "Game " << id_ << ": ";
    for (const auto& draw : draws)
    {
        out << draw[0] << " " << draw[1] << " " << draw[2] << ";";
    }

    return out.str();
}

Game Game::from_string(const std::string& line)
{
    std::istringstream in(line);

    std::string id;
    in >> skip<game_t> >> id;
    id.pop_back();
    Game game{ std::stoi(id) };

    int n;
    std::string kind;
    std::vector<int> draw{ 0, 0, 0};

    while (in >> n >> kind)
    {
        char sep{ kind.back() };
        if (sep == ';' or sep == ',')
        {
            kind.pop_back();
        }
        else
        {
            sep = ';';
        }

        if (kind == "blue")
        {
            draw[0] += n;
        }
        else if (kind == "red")
        {
            draw[1] += n;
        }
        else if (kind == "green")
        {
            draw[2] += n;
        }

        if (sep == ';')
        {
            game.push_back(draw);
            draw = { 0, 0, 0 };
        }
    }

    return game;
}