#!/bin/bash
# Fake systemctl für lokale Tests: verwaltet den Mock-llama.cpp-Prozess.
# Simuliert: systemctl stop|start|status <service>
#
# Umgebungsvariablen (vom Router geerbt):
#   FAKE_SYSTEMD_PIDFILE   PID-Datei des Mocks (Default /tmp/mock_upstream_pid)
#   FAKE_SYSTEMD_PORT      Mock-Port (Default 18080)
#   FAKE_SYSTEMD_PROFILE_DIR  Profil-Dir für den Mock
#   FAKE_SYSTEMD_MOCK      Mock-Skript (Default dev/mock_upstream.py)
#   FAKE_SYSTEMD_LOG       Log-Datei (Default /tmp/mock_upstream_fake.log)

CMD="${1:-}"
PIDFILE="${FAKE_SYSTEMD_PIDFILE:-/tmp/mock_upstream_pid}"
PORT="${FAKE_SYSTEMD_PORT:-18080}"
PROFILE_DIR="${FAKE_SYSTEMD_PROFILE_DIR:-}"
MOCK="${FAKE_SYSTEMD_MOCK:-dev/mock_upstream.py}"
LOG="${FAKE_SYSTEMD_LOG:-/tmp/mock_upstream_fake.log}"

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

case "$CMD" in
  stop)
    if is_running; then
      PID="$(cat "$PIDFILE")"
      kill "$PID" 2>/dev/null || true
      for _ in $(seq 1 50); do
        kill -0 "$PID" 2>/dev/null || break
        sleep 0.1
      done
      if kill -0 "$PID" 2>/dev/null; then
        kill -9 "$PID" 2>/dev/null || true
      fi
      rm -f "$PIDFILE"
    fi
    exit 0
    ;;
  start)
    if ! is_running; then
      MOCK_PROFILE_DIR="$PROFILE_DIR" MOCK_PORT="$PORT" \
        python3 "$MOCK" >>"$LOG" 2>&1 &
      echo $! > "$PIDFILE"
    fi
    exit 0
    ;;
  status)
    is_running && exit 0 || exit 3
    ;;
  *)
    exit 0
    ;;
esac