#!/usr/bin/env bash
# One-shot Windows release build for the GUI — ENTIRELY inside docker.
#
#   1) cross-compile the embedded core in docker (llmsproxy.exe + lua51.dll)
#   2) electron-builder NSIS packaging ALSO inside docker (wine for the
#      uninstaller step lives in the image — see Dockerfile). This is the fix
#      for the 1.3.0/1.4.0 broken installers: the host had amd64-only wine
#      (no syswow64 -> c0000135), which made electron-builder silently emit a
#      264 KB degenerate exe without its 86 MB payload.
#
# Outputs: cmd/build/gui-dist/"ModelRouter Setup <version>.exe"
#          cmd/build/gui-dist/modelrouter-gui-<version>-x64.nsis.7z
#
# Needs:   docker (any machine; no host mingw/wine/node required)
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../../.." && pwd)"
IMAGE="${WIN_BUILDER_IMAGE:-modelrouter/win-builder}"
PROXY="${GOPROXY:-https://goproxy.cn,direct}"
CACHE_VOL="modelrouter-eb-cache"

command -v docker >/dev/null || { echo "docker required"; exit 1; }

if ! docker image inspect "$IMAGE" >/dev/null 2>&1; then
  echo "[dist-win-docker] building image $IMAGE (first run, ~5-10 min)..."
  docker build -t "$IMAGE" "$ROOT/cmd/gui/docker/win-builder"
fi

docker volume create "$CACHE_VOL" >/dev/null 2>&1 || true

# 1) embedded core + 2) NSIS packaging — both inside the image so wine and node
# are the image's, never the host's. electron-builder downloads electron + nsis
# toolchains into ~/.cache on first run; the mounted volume keeps that warm so
# subsequent builds are incremental instead of re-fetching ~400 MB.
echo "[dist-win-docker] cross-compiling core + electron-builder NSIS in docker ..."
docker run --rm \
  -v "$ROOT":/workspace \
  -v "$CACHE_VOL":/root/.cache \
  -e GOPROXY="$PROXY" \
  -w /workspace \
  "$IMAGE" bash -c '
    set -euo pipefail
    cp /opt/luajit2/src/lua51.dll /workspace/cmd/gui/bin/lua51.dll
    GOOS=windows GOARCH=amd64 CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc \
      go build -buildvcs=false -tags luajit -trimpath \
      -o /workspace/cmd/gui/bin/llmsproxy.exe ./cmd/llmsproxy
    echo "  -> core built"
    # wine needs one prefix initialization so its wow64 runtime (syswow64/ntdll)
    # exists — the exact thing that was missing on the broken host. Use a shared
    # prefix in the cache volume so it is initialized only on the first run.
    export WINEPREFIX=/root/.cache/wineprefix
    if [ ! -f "$WINEPREFIX/drive_c/windows/syswow64/ntdll.dll" ]; then
      echo "  -> initializing wine prefix (first run)"
      WINEDEBUG=-all wineboot -i || true
    fi
    cd /workspace/cmd/gui
    # node_modules ships in the repo (host npm install already ran); reuse it.
    npx electron-builder --win nsis
  '

echo "[dist-win-docker] verifying artifacts ..."
"$ROOT/packaging/verify-dist.sh" "$ROOT/cmd/build/gui-dist"

echo "[dist-win-docker] done"