Duckstation/src/core/game_list.h

#pragma once
#include "types.h"
#include <optional>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>

class CDImage;

class SettingsInterface;

class GameList
{
public:
  struct GameDatabaseEntry
  {
    std::string code;
    std::string title;
    ConsoleRegion region;
  };

  using DatabaseMap = std::unordered_map<std::string, GameDatabaseEntry>;

  enum class EntryType
  {
    Disc,
    PSExe
  };

  struct GameListEntry
  {
    std::string path;
    std::string code;
    std::string title;
    u64 total_size;
    ConsoleRegion region;
    EntryType type;
  };

  using EntryList = std::vector<GameListEntry>;

  GameList();
  ~GameList();

  static const char* EntryTypeToString(EntryType type);

  static std::string GetGameCodeForImage(CDImage* cdi);
  static std::string GetGameCodeForPath(const char* image_path);
  static std::optional<ConsoleRegion> GetRegionForCode(std::string_view code);
  static std::optional<ConsoleRegion> GetRegionFromSystemArea(CDImage* cdi);
  static std::optional<ConsoleRegion> GetRegionForImage(CDImage* cdi);
  static std::optional<ConsoleRegion> GetRegionForPath(const char* image_path);

  const DatabaseMap& GetDatabase() const { return m_database; }
  const EntryList& GetEntries() const { return m_entries; }
  const u32 GetEntryCount() const { return static_cast<u32>(m_entries.size()); }

  void AddDirectory(std::string path, bool recursive);
  void SetDirectoriesFromSettings(SettingsInterface& si);
  void RescanAllDirectories();

  bool ParseRedumpDatabase(const char* redump_dat_path);
  void ClearDatabase();

private:
  struct DirectoryEntry
  {
    std::string path;
    bool recursive;
  };

  static bool IsExeFileName(const char* path);
  static bool GetExeListEntry(const char* path, GameListEntry* entry);

  bool GetGameListEntry(const char* path, GameListEntry* entry);
  void ScanDirectory(const char* path, bool recursive);

  DatabaseMap m_database;
  EntryList m_entries;

  std::vector<DirectoryEntry> m_search_directories;
};