#!/usr/bin/env bash
set -euo pipefail

# Usage: ./build.sh [poller|web|all] [commit message]
#   web   — build/push ONLY the web image (use this for web iterations so the
#           poller image is never rebuilt/repushed)
#   poller— build/push ONLY the poller image (touch deliberately)
#   all   — both (default)
#
# Deploy pins images by SHA (compose.*.yml ship :latest as a convenience only).

REG="docker.adamksmith.xyz"

cd "$(dirname "$0")"

TARGET="${1:-all}"
case "$TARGET" in
    poller) TARGETS="poller" ;;
    web)    TARGETS="web" ;;
    all)    TARGETS="poller web" ;;
    *) echo "usage: $0 [poller|web|all] [message]" >&2; exit 1 ;;
esac
MSG="${2:-Build and push images}"

# Stage and commit all changes
git add -A
if git diff --cached --quiet; then
    echo "No changes to commit, using HEAD"
else
    git commit -m "${MSG}"
fi

SHA=$(git rev-parse --short HEAD)

for target in ${TARGETS}; do
    img="${REG}/jbod-${target}"
    echo "Building ${img}:${SHA}"
    docker build --target "${target}" -t "${img}:${SHA}" -t "${img}:latest" .
    echo "Pushing ${img}:${SHA}"
    docker push "${img}:${SHA}"
    docker push "${img}:latest"
done

echo "Done (${TARGET}): ${REG}/jbod-{${TARGETS// /,}}:${SHA}"