#!/bin/bash
# MUA - Mikes Unraid Agent
# SysVinit-Service-Script (rc.mua)
# Unraid nutzt SysVinit, kein systemd.
# Wird installiert nach /etc/rc.d/rc.mua

PLUGIN_DIR="/usr/local/emhttp/plugins/mua"
SERVER="$PLUGIN_DIR/mcp/server.php"
PIDFILE="/var/run/mua.pid"
LOGFILE="/var/log/plugins/mua.log"
PORT=3002
PHP_BIN="/usr/bin/php"

# PHP-Binary finden (Fallback)
if [ ! -x "$PHP_BIN" ]; then
    PHP_BIN=$(command -v php 2>/dev/null)
fi

start() {
    if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
        echo "  MUA läuft bereits (PID $(cat "$PIDFILE"))"
        return 0
    fi
    if [ ! -f "$SERVER" ]; then
        echo "  FEHLER: Server-Datei nicht gefunden: $SERVER"
        return 1
    fi
    # Server starten (detached)
    nohup "$PHP_BIN" -S 0.0.0.0:$PORT "$SERVER" >> "$LOGFILE" 2>&1 &
    echo $! > "$PIDFILE"
    sleep 1
    if kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
        echo "  MUA gestartet (PID $(cat "$PIDFILE"), Port $PORT)"
        return 0
    else
        echo "  FEHLER: MUA konnte nicht gestartet werden"
        cat "$LOGFILE" 2>/dev/null | tail -5
        return 1
    fi
}

stop() {
    if [ -f "$PIDFILE" ]; then
        local pid=$(cat "$PIDFILE")
        if kill -0 "$pid" 2>/dev/null; then
            kill "$pid" 2>/dev/null
            sleep 1
            kill -0 "$pid" 2>/dev/null && kill -9 "$pid" 2>/dev/null
            echo "  MUA gestoppt (PID $pid)"
        fi
        rm -f "$PIDFILE"
    else
        # Fallback: per Port suchen
        local pid=$(lsof -ti :$PORT 2>/dev/null)
        if [ -n "$pid" ]; then
            kill "$pid" 2>/dev/null
            echo "  MUA gestoppt (PID $pid, per Port)"
        else
            echo "  MUA läuft nicht"
        fi
    fi
}

status() {
    if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
        echo "  MUA läuft (PID $(cat "$PIDFILE"), Port $PORT)"
        return 0
    else
        echo "  MUA läuft nicht"
        return 1
    fi
}

case "$1" in
    start)   start ;;
    stop)    stop ;;
    restart) stop; start ;;
    status)  status ;;
    *)
        echo "Usage: $0 {start|stop|restart|status}"
        exit 1
        ;;
esac