# Dockerfile for building UEFI-bootable SparkOS image
# Creates a .img file with GPT partition table, ESP, and GRUB

FROM ubuntu:22.04 AS image-builder

# Install required tools (includes Qt6 and CMake)
COPY scripts/docker-image-install-tools.sh /tmp/
RUN /tmp/docker-image-install-tools.sh

WORKDIR /build

# Copy source files
COPY src/ ./src/
COPY Makefile .
COPY scripts/ ./scripts/
COPY config/ ./config/
COPY rootfs/ ./rootfs/

# Build the init binary and Qt6 GUI application
RUN make init
RUN make gui

# Install to rootfs
RUN make install

# Download a minimal Linux kernel (using Ubuntu's kernel for now)
COPY scripts/docker-image-download-kernel.sh /tmp/
RUN /tmp/docker-image-download-kernel.sh

# Create UEFI-bootable image with GPT partition table
COPY scripts/docker-image-create-uefi.sh /tmp/
RUN /tmp/docker-image-create-uefi.sh

# Final stage - export the image
FROM scratch AS export
COPY --from=image-builder /output/sparkos.img.gz /sparkos.img.gz