#!/usr/bin/env bash
set -o errexit
set -o nounset
set -o pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=00_env.sh
. "$SCRIPT_DIR/00_env.sh"

section "Deleted But Open Files"

if ! require_cmd lsof; then
  warning "lsof is not installed or not in PATH. Install lsof or run equivalent tooling with appropriate privileges."
  exit 0
fi

warning "Read-only check. Full results may require elevated privileges."

deleted_output="$(lsof -nP +L1 2>/dev/null || true)"

if [[ -z "$deleted_output" ]]; then
  ok "No deleted open files detected by lsof."
  exit 0
fi

printf '%s\n' "$deleted_output" |
  awk '
    NR == 1 {
      printf "%-20s %-10s %-12s %s\n", "PROCESS", "PID", "SIZE", "PATH"
      next
    }
    {
      path = $9
      for (i = 10; i <= NF; i++) {
        path = path " " $i
      }
      printf "%-20s %-10s %-12s %s\n", $1, $2, $7, path
    }
  ' | tee -a "$LOG_FILE"

warning "Space from deleted files is released when the owning process closes the file or is safely restarted."