# syntax=docker/dockerfile:1

# The build argument `APP` is used to select the appropriate binary
# for the target OS.
# The binary specified by `APP` must exist in the `dist-files` stage.
ARG APP=${APP:-pebble}

# Set the base image dynamically based on the target OS
FROM --platform=${TARGETPLATFORM} scratch AS linux-base
FROM --platform=${TARGETPLATFORM} mcr.microsoft.com/windows/nanoserver:ltsc2022 AS windows-base

# Use build arguments to select the appropriate binary for Linux
FROM linux-base AS linux
ARG APP
ARG TARGETOS
ARG TARGETARCH
COPY --from=dist-files --chmod=0755 /${TARGETOS}/${TARGETARCH}/${APP} /app
ENTRYPOINT [ "/app" ]

# Use build arguments to select the appropriate binary for Windows
FROM windows-base AS windows
ARG APP
ARG TARGETOS
ARG TARGETARCH
COPY --from=dist-files /${TARGETOS}/${TARGETARCH}/${APP}.exe /app.exe
ENTRYPOINT [ "/app.exe" ]

# Final stage: dynamically select between Linux and Windows stages based on TARGETOS argument
FROM ${TARGETOS} AS final
ARG EXPOSE_PORTS
# Expose the specified ports
EXPOSE ${EXPOSE_PORTS}
# Add test configuration files
COPY ./test/ /test/