# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2026 Bryan Joshua Pedini

# Stage 1 · go builder
ARG GO_BUILDER=golang
ARG GO_VERSION=1.27.1-alpine
FROM ${GO_BUILDER}:${GO_VERSION} AS build

ARG GO_OS=linux
ARG GO_ARCH=amd64
ARG GIT_HOST
ARG REPO_ORG
ARG REPO_NAME
ARG APP_VERSION=latest
ARG COMMIT_ID=undefined

# Copy the project inside the builder container
WORKDIR $GOPATH/src/${GIT_HOST}/$REPO_ORG/$REPO_NAME/
# Download the modules first, so they are cached across source changes
COPY go.mod go.sum ./
RUN go mod download
COPY . .

# Build the static binary (pure-Go SQLite, no cgo)
RUN CGO_ENABLED=0 GOOS=${GO_OS} GOARCH=${GO_ARCH} \
    go build \
    -trimpath \
    -ldflags="-w -s -X 'main.APP_VERSION=${APP_VERSION}' -X 'main.COMMIT_ID=${COMMIT_ID}'" \
    -o /app .

# Stage 2 · scratch image
FROM scratch

# Copy only the binary from the build stage
COPY --from=build /app /app

# Execute the binary
ENTRYPOINT ["/app"]