#!/bin/bash

set -euo pipefail

script_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"

if ! command -v shellcheck >/dev/null 2>&1; then
  echo "Error: shellcheck has not been installed." >&2
  exit 1
fi

source_files="$("$script_dir/list-source-files" "$script_dir")"

cd "$script_dir"

bash_scripts=()
while IFS= read -r file; do
  [ -n "$file" ] || continue
  IFS= read -r first_line < "$file" || first_line=
  case "$first_line" in
    '#!'*bash*) bash_scripts+=("$file");;
  esac
done <<<"$source_files"

if [ "${#bash_scripts[@]}" -eq 0 ]; then
  echo "Error: no Bash scripts found under scripts/." >&2
  exit 1
fi

shellcheck -x -P SCRIPTDIR "${bash_scripts[@]}"