# ModelRouter GUI Windows builder
# Self-sufficient cross-compilation environment for the embedded llmsproxy core
# AND for packaging the Windows NSIS installer.
#
# Produces inside a mounted workspace:
#   - llmsproxy.exe (Go, windows/amd64, luajit tag) + lua51.dll
#   - ModelRouter Setup <ver>.exe  (electron-builder --win nsis; requires wine
#     so the uninstaller is generated — set USE_SYSTEM_WINE=true)
#
# Build:   docker build -t modelrouter/win-builder cmd/gui/docker/win-builder
# Usage:   make gui-win-docker   (or cmd/gui/scripts/dist-win-docker.sh)
#
# This image is the SINGLE wine provider for the NSIS step, so a host that has
# no / broken wine (e.g. amd64-only Debian: no syswow64 -> c0000135) can still
# produce a real installer. The NSIS step MUST run inside this image; running it
# on the host was how the 1.3.0 264 KB degenerate exe got shipped.
#
# LuaJIT source is fetched from gitcode.com (CN-reachable mirror) with github
# fallback; pass --build-arg LUAJIT_REPO to override.

FROM golang:1.25

ARG LUAJIT_REPO=https://gitcode.com/openresty/luajit2.git

# i386 arch is required for wine32 (the NSIS uninstaller step runs a win32 exe
# through wine's wow64 path, which needs the 32-bit runtime under /usr/lib/i386).
RUN dpkg --add-architecture i386 \
 && apt-get update -qq \
 && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq \
      gcc-mingw-w64-x86-64 make ca-certificates git \
      # NSIS step needs node + the electron-builder toolchain
      nodejs npm \
      # wine (32+64) for generating the NSIS uninstaller
      wine64 wine32:i386 \
 && rm -rf /var/lib/apt/lists/*

# electron-builder resolves the uninstaller via the system wine when
# USE_SYSTEM_WINE=true (or by default on Linux without a toolset). Pin it.
ENV USE_SYSTEM_WINE=true
ENV WINEDEBUG=-all
ENV ELECTRON_BUILDER_CACHE=/workspace/cmd/gui/.cache

# LuaJIT cross-compiled for Windows; keeps lua51.dll and the cgo import lib
# (libluajit-5.1.dll.a -> libluajit-5.1.a in the mingw lib dir).
# NOTE: $LUAJIT_REPO deliberately unquoted in "sh -c" — quoting the ARG would
#       embed literal quotes into the URL.
RUN git clone --depth 1 $LUAJIT_REPO /opt/luajit2 \
 || git clone --depth 1 https://github.com/openresty/luajit2 /opt/luajit2 \
 && cd /opt/luajit2 \
 && make HOST_CC=gcc CROSS=x86_64-w64-mingw32- TARGET_SYS=Windows TARGET_XCFLAGS=-DLUAJIT_ENABLE_LUA52COMPAT \
 && cp src/libluajit-5.1.dll.a /usr/x86_64-w64-mingw32/lib/libluajit-5.1.a

# Go proxy mirror for builds behind GFW-ish networks; overridable at runtime.
ENV GOPROXY=https://goproxy.cn,direct

WORKDIR /workspace
CMD ["/bin/bash"]