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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PID_FILE="$ROOT_DIR/.doclink-web.pid"
PORT="${1:-${PORT:-}}"

stop_by_pid() {
  local pid="$1"
  if [[ -z "${pid:-}" ]]; then
    return 1
  fi

  if kill -0 "$pid" 2>/dev/null; then
    kill "$pid"
    echo "Stopped DocLink Web process $pid"
    return 0
  fi

  echo "Process $pid is not running anymore."
  return 0
}

if [[ -n "${PORT:-}" ]]; then
  if command -v lsof >/dev/null 2>&1; then
    PIDS="$(lsof -ti tcp:"$PORT" 2>/dev/null || true)"
    if [[ -n "${PIDS:-}" ]]; then
      for PID in $PIDS; do
        stop_by_pid "$PID"
      done
      rm -f "$PID_FILE"
      exit 0
    fi
  fi
  echo "No process found listening on port $PORT."
fi

if [[ ! -f "$PID_FILE" ]]; then
  echo "No pid file found. If the server is running in another terminal, stop it with Ctrl+C."
  exit 0
fi

PID="$(cat "$PID_FILE" 2>/dev/null || true)"
if [[ -z "${PID:-}" ]]; then
  rm -f "$PID_FILE"
  echo "Pid file was empty. Removed it."
  exit 0
fi

if kill -0 "$PID" 2>/dev/null; then
  kill "$PID"
  echo "Stopped DocLink Web process $PID"
else
  echo "Process $PID is not running anymore."
fi

rm -f "$PID_FILE"