{ pkgs ? import <nixpkgs> {}, fetchgog }:

let

desktopItem = pkgs.makeDesktopItem {
    desktopName = "stronghold-crusader";
    name = "stronghold-crusader";
    exec = "@out@/bin/stronghold_crusader";
    icon = "stronghold-crusader";
    terminal = "False";
    type = "Application";
    categories = "Game;StrategyGame";
    genericName = "Stronghold Crusader";
};

desktopItemExtreme = pkgs.makeDesktopItem {
    desktopName = "stronghold-crusader-extreme";
    name = "stronghold-crusader-extreme";
    exec = "@out@/bin/stronghold_crusader_extreme";
    icon = "stronghold-crusader-extreme";
    terminal = "False";
    type = "Application";
    categories = "Game;StrategyGame";
    genericName = "Stronghold Crusader Extreme";
};

in

pkgs.stdenv.mkDerivation rec {
    pname = "stronghold-crusaders";
    pversion = "1.41";
    name = "${pname}-${pversion}";

    src = fetchgog {
        name = "setup_${name}.exe";
        sha256 = "dbf5a71d99fff24ee19232b2c7e1f1e6cf6232db46fa53d6d22aae0050ca9915";
        fileid = "stronghold_crusader/en1installer0";
    };

    nativeBuildInputs = with pkgs; [ icoutils innoextract ];
    buildInputs = with pkgs; [ bash wine ];

    unpackPhase = ''
        mkdir -p $out/share/stronghold-crusader
        cd $out/share/stronghold-crusader
        innoextract $src
        mkdir -p $out/share/icons
        wrestool -x -t 14 Stronghold\ Crusader.exe > $out/share/icons/stronghold-crusader.ico
        wrestool -x -t 14 Stronghold_Crusader_Extreme.exe > $out/share/icons/stronghold-crusader-extreme.ico
        rm -rf tmp
    '';

    installPhase = ''
        mkdir -p $out/bin
        mkdir -p $out/share/applications/

        cat << EOF > $out/bin/stronghold_crusader
#!${pkgs.bash}/bin/bash
cd $out/share/stronghold-crusader
${pkgs.wine}/bin/wine Stronghold\ Crusader.exe
EOF
        chmod +x $out/bin/stronghold_crusader
        install -Dm755 ${desktopItem}/share/applications/stronghold-crusader.desktop $out/share/applications/stronghold-crusader.desktop

        cat << EOF > $out/bin/stronghold_crusader_extreme
#!${pkgs.bash}/bin/bash
cd $out/share/stronghold-crusader
${pkgs.wine}/bin/wine Stronghold_Crusader_Extreme.exe
EOF
        chmod +x $out/bin/stronghold_crusader_extreme
        install -Dm755 ${desktopItemExtreme}/share/applications/stronghold-crusader-extreme.desktop $out/share/applications/stronghold-crusader-extreme.desktop
    '';

    meta = with pkgs.stdenv.lib; {
        description = "A realtime strategy game.";
        homepage = https://www.gog.com/game/stronghold_crusader;
        license = licenses.unfree;
        maintainers = [{
            email = "jakob-nixos@truh.at";
            github = "truh";
            name = "Jakob Klepp";
        }];
        platforms = platforms.linux;
    };
}