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

SCRIPT_DIR="$(dirname -- "$(readlink -f -- "${BASH_SOURCE[0]}")")"
STACKS_DIR="${STACKS_DIR:-$SCRIPT_DIR}"
docker_args=(--rm -v "$STACKS_DIR:/app")
dclint_args=()

if [[ -t 1 ]]; then
	docker_args+=(-t)
fi

# Scan immediate stack directories without recursing into their subdirectories.
shopt -s nullglob
for stack_dir in "$STACKS_DIR"/*/; do
	stack_dir="${stack_dir%/}"
	dclint_args+=("/app/${stack_dir##*/}")
done

if ((${#dclint_args[@]} == 0)); then
	printf 'No stack directories found in %s\n' "$STACKS_DIR" >&2
	exit 1
fi

case "${1:-}" in
"")
	;;
--fix)
	dclint_args+=(--fix)
	;;
*)
	printf 'Usage: %s [--fix]\n' "${0##*/}" >&2
	exit 2
	;;
esac

exec docker run "${docker_args[@]}" \
	zavoloklom/dclint \
	"${dclint_args[@]}"