#!/bin/bash
# LQMDRetrieval 服务管理脚本

APP_DIR="$(cd "$(dirname "$0")" && pwd)"
PID_FILE="$APP_DIR/logs/server.pid"
LOG_FILE="$APP_DIR/logs/server.log"

start() {
    if [ -f "$PID_FILE" ]; then
        PID=$(cat "$PID_FILE")
        if kill -0 "$PID" 2>/dev/null; then
            echo "服务已在运行 (PID: $PID)"
            return 1
        fi
    fi

    mkdir -p "$APP_DIR/logs"
    cd "$APP_DIR"
    nohup python run_server.py > "$LOG_FILE" 2>&1 &
    echo $! > "$PID_FILE"
    echo "服务已启动 (PID: $(cat "$PID_FILE"))"
}

stop() {
    if [ -f "$PID_FILE" ]; then
        PID=$(cat "$PID_FILE")
        if kill -0 "$PID" 2>/dev/null; then
            kill "$PID"
            echo "服务已停止 (PID: $PID)"
        else
            echo "服务未运行"
        fi
        rm -f "$PID_FILE"
    else
        echo "服务未运行"
    fi
}

restart() {
    stop
    sleep 2
    start
}

status() {
    if [ -f "$PID_FILE" ]; then
        PID=$(cat "$PID_FILE")
        if kill -0 "$PID" 2>/dev/null; then
            echo "服务正在运行 (PID: $PID)"
        else
            echo "服务未运行 (PID 文件存在但进程不存在)"
        fi
    else
        echo "服务未运行"
    fi
}

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