Endgame-Analyzer/download.h

117 lines
3.6 KiB
C++

#ifndef DYNAMIC_PROGRAM_DOWNLOAD_H
#define DYNAMIC_PROGRAM_DOWNLOAD_H
#include <boost/json.hpp>
#include <boost/json/src.hpp>
#include <cpr/cpr.h>
#include <iostream>
#include <fstream>
#include <variant>
#include "game_state.h"
// This helper function deduces the type and assigns the value with the matching key
template<class T>
void extract( boost::json::object const& obj, T& t, std::string_view key )
{
t = value_to<T>( obj.at( key ) );
}
namespace Hanabi {
Card tag_invoke(boost::json::value_to_tag<Card>,
boost::json::value const &jv) {
Hanabi::Card card{};
boost::json::object const &obj = jv.as_object();
extract(obj, card.rank, "rank");
extract(obj, card.suit, "suitIndex");
card.rank = 5 - card.rank;
return card;
}
Action tag_invoke(boost::json::value_to_tag<Action>, boost::json::value const &jv) {
Hanabi::Action action{};
uint8_t type;
boost::json::object const &obj = jv.as_object();
extract(obj, action.target, "target");
extract(obj, type, "type");
action.type = static_cast<ActionType>(type);
switch (action.type) {
case ActionType::color_clue:
case ActionType::rank_clue:
action.type = ActionType::clue;
break;
case ActionType::end_game:
case ActionType::vote_terminate:
action.type = ActionType::end_game;
break;
case ActionType::play:
case ActionType::discard:
break;
default:
throw std::runtime_error("Invalid game format, could not parse action type " + std::to_string(type));
}
return action;
}
void tag_invoke(boost::json::value_from_tag, boost::json::value &jv, Hanabi::Card const &card) {
jv = {{"suitIndex", card.suit}, {"rank", card.rank}};
}
}
std::vector<Hanabi::Card> parse_deck(const boost::json::value& deck_json) {
auto deck = boost::json::value_to<std::vector<Hanabi::Card>>(deck_json);
for(auto & card : deck) {
assert(card.rank < 5);
assert(card.rank >= 0);
assert(card.suit < 6);
assert(card.suit >= 0);
}
return deck;
}
std::vector<Hanabi::Action> parse_actions(const boost::json::value& action_json) {
return boost::json::value_to<std::vector<Hanabi::Action>>(action_json);
}
boost::json::object download_game_json(int game_id) {
std::string request_str = "https://hanab.live/export/" + std::to_string(game_id);
cpr::Response r = cpr::Get(cpr::Url(request_str));
if (r.header["content-type"] != "application/json; charset=utf-8") {
return {};
}
return boost::json::parse(r.text).as_object();
}
boost::json::object open_game_json(const char* filename) {
std::ifstream file(filename);
if (!file.is_open()) {
std::cout << "Failed to open " << filename << "." << std::endl;
return {};
}
std::string game_json ((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
return boost::json::parse(game_json).as_object();
}
void get_game(std::variant<int, const char*> game_spec) {
const boost::json::object game = [&game_spec](){
if (game_spec.index() == 0) {
return download_game_json(std::get<int>(game_spec));
} else {
return open_game_json(std::get<const char*>(game_spec));
}
}();
const std::vector<Hanabi::Card> deck = parse_deck(game.at("deck"));
const std::vector<Hanabi::Action> actions = parse_actions(game.at("actions"));
const unsigned num_players = game.at("players").as_array().size();
std::cout << deck.size() << std::endl;
std::cout << num_players;
}
#endif // DYNAMIC_PROGRAM_DOWNLOAD_H