FROM alpine:latest AS builder

WORKDIR /build

RUN apk add rustup build-base
# todo: arm64 target
RUN rustup-init --default-host x86_64-unknown-linux-musl --default-toolchain stable --profile default -y

ENV PATH=/root/.cargo/bin:$PATH
ENV RUSTFLAGS='-C link-arg=-s'

RUN cargo install cargo-chef --locked

# build dependencies first to cache
FROM builder AS recipe-builder
COPY . .
RUN cargo chef prepare --recipe-path recipe.json

FROM builder AS binary-builder
COPY --from=recipe-builder /build/recipe.json recipe.json
RUN cargo chef cook --release --recipe-path recipe.json --target x86_64-unknown-linux-musl

COPY Cargo.toml /build/
COPY Cargo.lock /build/

# this needs to match workspaces in Cargo.toml
COPY lib/libpk /build/lib/libpk
COPY services/api/ /build/services/api

RUN cargo build --bin api --release --target x86_64-unknown-linux-musl

FROM scratch 

COPY --from=binary-builder /build/target/x86_64-unknown-linux-musl/release/api /api