From 2ac7a5de52eda9d70983117dc650bc3ee979a4e5 Mon Sep 17 00:00:00 2001
From: Sasza Stanczew <sasza@stanczew.com>
Date: Mon, 16 Feb 2026 12:58:59 +0100
Subject: [PATCH] tibia WORKS!

---
 modules/tibia.nix | 113 +++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 102 insertions(+), 11 deletions(-)

diff --git a/modules/tibia.nix b/modules/tibia.nix
index a69c7c5..86abf06 100644
--- a/modules/tibia.nix
+++ b/modules/tibia.nix
@@ -1,14 +1,105 @@
-{ pkgs, ... }: {
-  nixpkgs.overlays = [
-    (self: super: {
-      tibia = super.tibia.overrideAttrs (old: {
-	src = builtins.path { path = "/home/sasza/Gry/tibia.x64.tar.gz"; name = "tibia.tar.gz"; };
-      });
-    })
-  ];
-  # paczki
-  environment.systemPackages = with pkgs; [
-    tibia
+{ config, pkgs, lib, ... }:
 
+let
+
+  # Inline legacy libxml2 (2.9.x) because modern Nixpkgs removed it
+  libxml2_2_9 = pkgs.stdenv.mkDerivation {
+    pname = "libxml2-2.9";
+    version = "2.9.14";
+
+    src = pkgs.fetchurl {
+      url = "https://download.gnome.org/sources/libxml2/2.9/libxml2-2.9.14.tar.xz";
+      sha256 = "sha256-YNdKJX0czsBHXnScui8hVZ5IE577pv8oIkNXx8eY3+4=";
+    };
+
+    nativeBuildInputs = [ pkgs.pkg-config ];
+    buildInputs = [ pkgs.zlib pkgs.xz ];
+
+    configureFlags = [
+      "--disable-static"
+      "--without-python"
+    ];
+
+    enableParallelBuilding = true;
+  };
+
+  # Wrapper for the real client
+  tibiaClientWrapper = pkgs.writeShellScriptBin "tibia-client" ''
+    #!/usr/bin/env bash
+    export LD_LIBRARY_PATH="${pkgs.nss}/lib:${pkgs.libxkbfile}/lib:${pkgs.nspr}/lib:${libxml2_2_9}/lib:$LD_LIBRARY_PATH"
+    exec steam-run "$HOME/.local/share/CipSoft GmbH/Tibia/packages/Tibia/bin/client" "$@"
+  '';
+  # Script that patches Tibia's package.json
+  tibiaPatcher = pkgs.writeShellScriptBin "tibia-patch" ''
+    #!/usr/bin/env bash
+    set -e
+
+    PKGDIR="$HOME/.local/share/CipSoft GmbH/Tibia/packages/Tibia"
+    PKGJSON="$PKGDIR/package.json"
+    LOCALWRAPPER="$PKGDIR/tibia-client-wrapper"
+
+    if [ ! -f "$PKGJSON" ]; then
+      echo "package.json not found — run the launcher once first."
+      exit 0
+    fi
+
+    # Create wrapper INSIDE the Tibia package directory
+    cat > "$LOCALWRAPPER" <<EOF
+#!/usr/bin/env bash
+export LD_LIBRARY_PATH="${pkgs.nss}/lib:${pkgs.libxkbfile}/lib:${pkgs.nspr}/lib:${libxml2_2_9}/lib:\$LD_LIBRARY_PATH"
+exec /run/current-system/sw/bin/tibia-client "\$@"
+EOF
+    chmod +x "$LOCALWRAPPER"
+
+    # Patch JSON to use the local wrapper (relative path!)
+    sed -i 's#"executable": "bin/client"#"executable": "tibia-client-wrapper"#' "$PKGJSON"
+
+    echo "Tibia client patched to use tibia-client-wrapper."
+  '';
+
+  tibiaLauncherWrapper = pkgs.writeShellScriptBin "tibia" ''
+    #!/usr/bin/env bash
+    set -e
+
+    LAUNCHER="$HOME/Gry/Tibia/Tibia"
+
+    if [ ! -x "$LAUNCHER" ]; then
+      echo "Tibia launcher not found at:"
+      echo "  $LAUNCHER"
+      exit 1
+    fi
+
+    tibia-patch
+
+    export LD_LIBRARY_PATH="${pkgs.nss}/lib:${pkgs.libxkbfile}/lib:${pkgs.nspr}/lib:${libxml2_2_9}/lib:$LD_LIBRARY_PATH"
+    exec steam-run "$LAUNCHER"
+  '';
+
+  tibiaDirect = pkgs.writeShellScriptBin "tibia-direct" ''
+    #!/usr/bin/env bash
+
+    CLIENT="$HOME/.local/share/CipSoft GmbH/Tibia/packages/Tibia/bin/client"
+
+    if [ ! -x "$CLIENT" ]; then
+      echo "Tibia client not found."
+      echo "Run the official launcher once so it downloads the client."
+      exit 1
+    fi
+
+    export LD_LIBRARY_PATH="${pkgs.nss}/lib:${pkgs.libxkbfile}/lib:${pkgs.nspr}/lib:${libxml2_2_9}/lib:$LD_LIBRARY_PATH"
+
+    exec steam-run "$CLIENT"
+  '';
+
+in
+{
+  environment.systemPackages = [
+    pkgs.steam-run
+    libxml2_2_9
+    tibiaClientWrapper
+    tibiaPatcher
+    tibiaLauncherWrapper
+    tibiaDirect
   ];
 }
+