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

CMD=${1:-help}
PIDFILE="/tmp/merlin-daemon.pid"
LOGFILE="/tmp/merlin-daemon.log"

case "$CMD" in
  start)
    if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
      echo "Merlin already running (pid $(cat "$PIDFILE"))"
      exit 0
    fi
    conda run -n cf python -m merlin.daemon >> "$LOGFILE" 2>&1 &
    echo $! > "$PIDFILE"
    echo "Merlin started (pid $!). Logs: $LOGFILE"
    ;;
  stop)
    if [ -f "$PIDFILE" ]; then
      kill "$(cat "$PIDFILE")" 2>/dev/null && echo "Merlin stopped"
      rm -f "$PIDFILE"
    else
      echo "Merlin not running"
    fi
    ;;
  restart)
    bash "$0" stop
    sleep 1
    bash "$0" start
    ;;
  status)
    if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
      echo "Running (pid $(cat "$PIDFILE"))"
      curl -s http://localhost:8522/status | python3 -m json.tool
    else
      echo "Stopped"
    fi
    ;;
  logs)
    tail -f "$LOGFILE"
    ;;
  test)
    conda run -n cf pytest tests/ -v
    ;;
  *)
    echo "Usage: $0 start|stop|restart|status|logs|test"
    ;;
esac