#!/bin/sh
set -eu

TARGET="${TARGET_PATH:-/home/zenn/Collection}"

case "$TARGET" in
  /*) ;;
  *)
    echo "[last-signal] refused non-absolute target path: $TARGET"
    exit 1
    ;;
esac

if [ -L "$TARGET" ]; then
  echo "[last-signal] refused symbolic-link target: $TARGET"
  exit 1
fi

if [ ! -d "$TARGET" ]; then
  if [ -e "$TARGET" ]; then
    echo "[last-signal] refused non-directory target: $TARGET"
    exit 1
  fi
  echo "[last-signal] target directory not found: $TARGET"
  exit 0
fi

TARGET_REAL="$(CDPATH= cd "$TARGET" && pwd -P)"
if [ "$TARGET_REAL" = "/" ]; then
  echo "[last-signal] refused filesystem root"
  exit 1
fi

find "$TARGET_REAL" -mindepth 1 -maxdepth 1 -exec rm -rf -- {} +
echo "[last-signal] deleted contents of: $TARGET_REAL"