// Copyright (c) 2026 Juhapekka Piiroinen <jp@1337.fi>
// All Rights Reserved.
// AmoosedWeb project: https://amoosed.com
#pragma once
#include "AmoosedWeb/Game.hpp"
#include "AmoosedWeb/Reader.hpp"
#include <array>
#include <string>
#include <string_view>

namespace amoosed {
// An engine adapter owns one session per game instance. Refresh stages a new
// verified index and catalogue, then swaps them together. A failed refresh
// leaves the last verified in-memory snapshot available for offline play.
// The member key is supplied per fetch and is never retained by this object.
class GameSession {
 public:
  GameSession(std::string game_id, std::string game_version);
  bool refresh_hosted(HttpHost& http, CryptoHost& crypto, std::string& error,
                      bool allow_rollback = false, MediaDecoder* media = nullptr,
                      ReaderFailure* failure = nullptr);
  bool refresh_external(HttpHost& http, CryptoHost& crypto, std::string_view key_file,
                        std::string& error, bool allow_rollback = false,
                        MediaDecoder* media = nullptr,
                        ReaderFailure* failure = nullptr);
  bool fetch_item(std::string_view item_id, const std::array<std::uint8_t, 32>* member_key,
                  HttpHost& http, CryptoHost& crypto, OutputHost& output,
                  DownloadResult& result, std::string& error,
                  MediaDecoder* media = nullptr,
                  ReaderFailure* failure = nullptr) const;
  bool ready() const { return ready_; }
  const GameCatalogue& catalogue() const { return catalogue_; }
  const std::string& index_digest() const { return index_digest_; }
 private:
  bool accept(IndexResult&& candidate, HttpHost& http, CryptoHost& crypto,
              std::string& error, bool allow_rollback, MediaDecoder* media,
              ReaderFailure* failure);
  std::string game_id_, game_version_, index_digest_;
  AppIndex index_;
  GameCatalogue catalogue_;
  bool ready_ = false;
};
}