#!/bin/sh

set -eu

IMAGE_NAME="${IMAGE_NAME:-debian13-source-stack}"
PREFIX="${PREFIX:-/usr/local}"
SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
SOURCES_DIR="${SOURCES_DIR:-$SCRIPT_DIR/../sources}"
FETCH_SCRIPT="$SCRIPT_DIR/../fetch-sources.sh"

if ! command -v podman >/dev/null 2>&1; then
    echo "Error: Podman is required." >&2
    exit 1
fi

SOURCES_DIR="$SOURCES_DIR" "$FETCH_SCRIPT"

# macOS reports arm64 where Linux (and Debian multiarch) call it aarch64.
ARCH=$(uname -m)
[ "$ARCH" = arm64 ] && ARCH=aarch64

echo "Building image $IMAGE_NAME with podman (prefix $PREFIX) ..."
exec podman build --build-context sources="$SOURCES_DIR" \
    --build-arg PREFIX="$PREFIX" --build-arg MULTIARCH="$ARCH-linux-gnu" \
    --tag "$IMAGE_NAME" "$SCRIPT_DIR"