#!/bin/sh

echo -e "\033[36m====================================================\033[0m"
echo -e "\033[36m   网络拓扑自动侦测脚本 (单臂/双臂路由自动适配)     \033[0m"
echo -e "\033[36m====================================================\033[0m"

# 核心逻辑：去 UCI 配置库里查水表，看看有没有注册 wan 接口
if uci -q get network.wan >/dev/null; then
    echo -e "\033[32m✅ 检测到 WAN 接口配置 (判断为：硬路由/双臂模式)\033[0m"
    
    echo " -> [1/3] 将 WAN 口协议设置为 dhcp (获取上游网络)..."
    uci set network.wan.proto='dhcp'
    
    echo " -> [2/3] 将 LAN 口设置为静态 IP: 192.168.100.1 (充当主网关)..."
    uci set network.lan.proto='static'
    uci set network.lan.ipaddr='192.168.100.1'
    uci set network.lan.netmask='255.255.255.0'
    
else
    echo -e "\033[33m⚠️ 未检测到 WAN 接口配置 (判断为：软路由/单臂/旁路由模式)\033[0m"
    
    echo " -> [1/3] 将 LAN 口协议从 static 切换为 dhcp (请求上游分配IP)..."
    uci set network.lan.proto='dhcp'
    
    echo " -> [2/3] 清除旧的静态 IP 残留，防止底层冲突..."
    uci delete network.lan.ipaddr >/dev/null 2>&1
    uci delete network.lan.netmask >/dev/null 2>&1
fi

echo " -> [3/3] 提交修改并重启网络服务 (请耐心等待 6-8 秒)..."
uci commit network
/etc/init.d/network restart

sleep 6

echo -e "\033[32m🎉 搞定！当前 br-lan 接口的最新状态如下：\033[0m"
ip addr show br-lan | grep inet
echo -e "\033[36m====================================================\033[0m"