ARG GOLANG_IMAGE=golang:1.24-alpine3.21
ARG BUILD_IMAGE=alpine:3.21

# Cross-Compilation
# https://www.docker.com/blog/faster-multi-platform-builds-dockerfile-cross-compilation-guide/
FROM --platform=$BUILDPLATFORM $GOLANG_IMAGE AS builder

ARG TARGETOS TARGETARCH TARGETVARIANT
ENV GOOS=$TARGETOS GOARCH=$TARGETARCH GOARM=$TARGETVARIANT

COPY . /dist/core

RUN cd /dist/core/internal/testhelper/ffmpeg && \
	go build

FROM $BUILD_IMAGE

COPY --from=builder /dist/core/internal/testhelper/ffmpeg/ffmpeg /usr/bin/ffmpeg

ENTRYPOINT ["/usr/local/bin/ffmpeg"]
WORKDIR /usr/local/bin