FROM golang:1.25.1-bookworm AS builder

WORKDIR /src

COPY go.mod go.sum ./
RUN --mount=type=cache,target=/root/.cache/go-build \
    --mount=type=cache,target=/go/pkg/mod \
    go mod download

COPY . .

RUN --mount=type=cache,target=/root/.cache/go-build \
    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
    go build -ldflags "-s -w" -o /out/ ./...

FROM gcr.io/distroless/static-debian11:nonroot

COPY --from=builder /out/block-game-backend /usr/local/bin/block-game-backend

USER nonroot:nonroot

ENTRYPOINT ["/usr/local/bin/block-game-backend"]