# syntax=docker/dockerfile:1
#
# Builder
#
ARG NIX_SUBSTITUTERS=https://cache.nixos.org

FROM nixos/nix:2.31.3 AS builder

ARG NIX_SUBSTITUTERS
RUN tee -a /etc/nix/nix.conf <<EOF
extra-experimental-features = nix-command flakes
filter-syscalls = false
substituters = $NIX_SUBSTITUTERS
EOF

RUN cp "$(nix build nixpkgs#cacert --print-out-paths)/etc/ssl/certs/ca-bundle.crt" /tmp/ca-bundle.crt

COPY . /tmp/build
WORKDIR /tmp/build

RUN --mount=type=ssh GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null" nix build '.#docker_env'

# Export the built closure to a folder
RUN mkdir /tmp/nix-store-closure
RUN cp -R $(nix-store -qR result/) /tmp/nix-store-closure



#
# Runner
#

FROM scratch

WORKDIR /app

ENV PATH="$PATH:/app/bin"

ENV SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
ENV NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
COPY --from=builder /tmp/ca-bundle.crt /etc/ssl/certs/ca-bundle.crt

COPY --from=builder /tmp/nix-store-closure /nix/store
COPY --from=builder /tmp/build/result /app

CMD ["/app/bin/natter"]
