#!/usr/bin/env bash
# Build embedded Windows core inside the self-sufficient builder image.
#   - image has LuaJIT pre-built: /opt/luajit2/src/{lua51.dll, libluajit-5.1.dll.a}
#   - import lib already installed at image build (libluajit-5.1.a, mingw lib dir)
# Outputs: cmd/gui/bin/{llmsproxy.exe, lua51.dll}
set -euo pipefail

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

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

if ! docker image inspect "$IMAGE" >/dev/null 2>&1; then
  echo "[win-core] building image $IMAGE ..."
  docker build -t "$IMAGE" "$ROOT/cmd/gui/docker/win-builder"
fi

mkdir -p "$BIN_DIR"

echo "[win-core] cross-building llmsproxy.exe (windows/amd64, luajit) + lua51.dll ..."
docker run --rm \
  -v "$ROOT":/workspace \
  -e GOPROXY="$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"
  '
echo "[win-core] done: $BIN_DIR/llmsproxy.exe"