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

# Show disk usage by administrator and by stable folder.
# Usage:
#   scripts/ops/netgescon-storage-report.sh
#   scripts/ops/netgescon-storage-report.sh --root storage/app/amministratori
#   scripts/ops/netgescon-storage-report.sh --admin KPL9F3XP

ROOT_DIR="storage/app/amministratori"
FILTER_ADMIN=""

while [[ $# -gt 0 ]]; do
  case "$1" in
    --root)
      ROOT_DIR="$2"
      shift 2
      ;;
    --admin)
      FILTER_ADMIN="$2"
      shift 2
      ;;
    *)
      echo "Unknown option: $1"
      echo "Usage: $0 [--root <dir>] [--admin <code>]"
      exit 1
      ;;
  esac
done

if [[ ! -d "$ROOT_DIR" ]]; then
  echo "Error: root dir not found: $ROOT_DIR"
  exit 1
fi

echo "== ROOT =="
echo "$ROOT_DIR"
echo

echo "== SPACE BY ADMINISTRATOR =="
if [[ -n "$FILTER_ADMIN" ]]; then
  if [[ ! -d "$ROOT_DIR/$FILTER_ADMIN" ]]; then
    echo "Error: administrator not found: $FILTER_ADMIN"
    exit 1
  fi
  du -sh "$ROOT_DIR/$FILTER_ADMIN"
else
  du -sh "$ROOT_DIR"/* 2>/dev/null | sort -h || true
fi

echo

echo "== SPACE BY STABILE =="
if [[ -n "$FILTER_ADMIN" ]]; then
  STABILI_DIR="$ROOT_DIR/$FILTER_ADMIN/stabili"
  if [[ -d "$STABILI_DIR" ]]; then
    du -sh "$STABILI_DIR"/* 2>/dev/null | sort -h || echo "No stabili folders in $STABILI_DIR"
  else
    echo "No stabili dir for administrator: $FILTER_ADMIN"
  fi
else
  for admin_dir in "$ROOT_DIR"/*; do
    [[ -d "$admin_dir" ]] || continue
    admin_code="$(basename "$admin_dir")"
    stabili_dir="$admin_dir/stabili"
    if [[ -d "$stabili_dir" ]]; then
      echo "-- $admin_code --"
      du -sh "$stabili_dir"/* 2>/dev/null | sort -h || echo "No stabili folders"
      echo
    fi
  done
fi