FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS base
WORKDIR /app
EXPOSE 8080
# The .NET base image ships neither wget nor curl, which the container healthcheck needs.
# Copy a single static busybox binary named `wget` (busybox dispatches on argv[0]).
# This stays fully offline — no apt/network — matching the vendored Go builds.
COPY --from=busybox:1.36 /bin/busybox /usr/bin/wget

FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
WORKDIR /src
# Restore is its own cached layer: it only re-runs when the .csproj (deps) changes,
# not on every source edit. Critical here — NuGet restore is the slow step.
COPY NuGet.Config .
COPY ["FlatRender.StudioSvc/FlatRender.StudioSvc.csproj", "FlatRender.StudioSvc/"]
RUN dotnet restore "FlatRender.StudioSvc/FlatRender.StudioSvc.csproj"
COPY . .
# Single publish compiles + packages; --no-restore reuses the cached restore above.
RUN dotnet publish "FlatRender.StudioSvc/FlatRender.StudioSvc.csproj" \
    -c Release -o /app/publish --no-restore /p:UseAppHost=false

FROM base AS final
WORKDIR /app
COPY --from=build /app/publish .
ENTRYPOINT ["dotnet", "FlatRender.StudioSvc.dll"]