{ lib
, fetchFromMega
, fetchFromMediafire
, fetchurl
, mkWindowsApp
, wine
, wineArch
, unzip
, makeDesktopItem
, makeDesktopIcon
, copyDesktopItems
, copyDesktopIcons
, legacy-version ? false
}:
let uid = "pkmn-infinite-fusion";
in mkWindowsApp rec {
  pname = "Pokemon Infinite Fusion";
  version = if legacy-version
    then "4.9.2"
    else "5.2.1";
  meta.homepage = "https://www.pokecommunity.com/showthread.php?t=347883";
  meta.description = "This game re-introduces the DNA Splicers from Black and White 2... Except this time, you can use it on EVERY Pokémon!";

  dontUnpack = true;
  src = if legacy-version
  then fetchFromMega rec {
    name = "infinitefusion_${version}-full.zip";
    url = "https://mega.nz/file/kg9UxbAI#G-bG8rv1HkOqTkza4R1TCcNFihc0C9ir21GtcMD6FPo";
    hash = "sha256-YTEVoQ6Dml5XBb9jSkzKHCWs4MAtdULSsnkJHp7uUCY=";
    assert_exists = [ name ];
  }
  else fetchFromMediafire rec {
    name = "infinitefusion_preloaded_${version}_full.zip";
    url = "https://www.mediafire.com/file/2eqpi1qq74yl1gb/infinitefusion_preloaded_5.2.1_full.zip/file";
    hash = "sha256-JyalBh2ikwAbNm1SUg2oYXnLKbg2jG0ZmBUjoFOhGuk=";
    assert_exists = [ name ];
  };

  inherit wine wineArch;
  nativeBuildInputs = [ copyDesktopItems copyDesktopIcons ];

  installPhase = ''
    runHook preInstall
    ln -s $out/bin/.launcher $out/bin/${lib.escapeShellArg pname}
    runHook postInstall
  '';

  winAppInstall = ''
    ${unzip}/bin/unzip ${src} -d "$WINEPREFIX/drive_c/${uid}"
  '' + lib.optionalString legacy-version ''
    mkdir -vp "$WINEPREFIX/drive_c/windows/fonts"
    cp -v "$WINEPREFIX/drive_c/${uid}/Fonts/"* "$WINEPREFIX/drive_c/windows/fonts/"
  '';

  # v5+
  fileMap."$HOME/.local/share/${uid}/AppData/infinitefusion"
    = "drive_c/users/$USER/AppData/Roaming/infinitefusion";
  # legacy
  fileMap."$HOME/.local/share/${uid}/Saved Games"
    = "drive_c/users/$USER/Saved Games";

  winAppRun = if legacy-version
  then ''
    $WINE start /unix "$WINEPREFIX"/drive_c/${uid}/Game.exe "$ARGS"
  ''
  else ''
    $WINE start /unix "$WINEPREFIX"/drive_c/${uid}/"Pokemon Infinite Fusion".exe "$ARGS"
  '';

  desktopItems = [
    (makeDesktopItem {
      name = pname;
      exec = pname;
      icon = uid;
      desktopName = pname;
      categories = ["Game"];
    })
  ];

  desktopIcon = makeDesktopIcon {
    name = uid;
    icoIndex = 0;
    src = fetchurl {
      url = "https://static.wikia.nocookie.net/infinitefusion/images/e/e6/Site-logo.png";
      hash = "sha256-TupD2OHsJnH/SntZUqvjoBvIZziRN+Wv8S0nMLQ7UQE=";
    };
  };

}