#!/usr/bin/env bash
# Minimal local supervisor for the LineUp app server. It is intentionally the
# only process manager for this binary; the Hermes Adapter has its own script.
set -euo pipefail

DIR="$(cd "$(dirname "$0")" && pwd)"
BIN="$DIR/bin/lineup-server"
CONFIG="$DIR/configs/lineup.yaml"
LOG="$DIR/appserver.log"
PIDFILE="$DIR/lineup-server.pid"
RUNTIME_ENV="$DIR/.env"

# Deployment secrets live beside the service, never in lineup.yaml. Viper maps
# LINEUP_AGENT_SHARED_SECRET to agent.shared_secret automatically.
if [[ -f "$RUNTIME_ENV" ]]; then
  set -a
  # shellcheck disable=SC1090
  source "$RUNTIME_ENV"
  set +a
fi

is_running() {
  [[ -f "$PIDFILE" ]] && kill -0 "$(<"$PIDFILE")" 2>/dev/null
}

start() {
  if is_running; then
    echo "LineUp App Server 已在运行 PID=$(<"$PIDFILE")"
    return
  fi
  cd "$DIR"
  nohup setsid "$BIN" -config "$CONFIG" >> "$LOG" 2>&1 < /dev/null &
  echo "$!" > "$PIDFILE"
  echo "LineUp App Server 已启动 PID=$(<"$PIDFILE")"
}

stop() {
  if is_running; then
    kill "$(<"$PIDFILE")"
    echo "LineUp App Server 已停止"
  fi
  rm -f "$PIDFILE"
}

case "${1:-start}" in
  start) start ;;
  stop) stop ;;
  restart) stop; start ;;
  status) is_running && echo "LineUp App Server 运行中 PID=$(<"$PIDFILE")" || echo "LineUp App Server 未运行" ;;
  *) echo "用法: $0 {start|stop|restart|status}"; exit 2 ;;
esac