#!/bin/sh

ifconfig $@ | awk '
    # 接口名称（蓝色加粗），处理 mtu 数值为青色
    /^[a-z]+[0-9]+:/ {
        interface = substr($0, 1, index($0, ":")+0)  # 提取接口名（如 "em0:"）
        rest = substr($0, length(interface)+1)        # 剩余部分（flags、mtu 等）

        # 处理状态标志（UP/BROADCAST/RUNNING/SIMPLEX/MULTICAST）
        if (match(rest, /<[^>]+>/)) {
            flags_str = substr(rest, RSTART, RLENGTH)
            gsub(/UP/, "\033[32mUP\033[0m", flags_str)        # UP 绿色
            gsub(/BROADCAST/, "\033[33mBROADCAST\033[0m", flags_str)  # BROADCAST 黄色
            gsub(/RUNNING/, "\033[32mRUNNING\033[0m", flags_str)      # RUNNING 绿色
            gsub(/SIMPLEX/, "\033[34mSIMPLEX\033[0m", flags_str)      # SIMPLEX 蓝色
            gsub(/MULTICAST/, "\033[35mMULTICAST\033[0m", flags_str)  # MULTICAST 紫色
            rest = substr(rest, 1, RSTART-1) flags_str substr(rest, RSTART+RLENGTH)
        }

        # 手动处理 mtu 后的数字
        if (match(rest, /mtu [0-9]+/)) {
            mtu_str = substr(rest, RSTART, RLENGTH)
            split(mtu_str, parts, " ")
            colored_mtu = "mtu \033[36m" parts[2] "\033[0m"
            rest = substr(rest, 1, RSTART-1) colored_mtu substr(rest, RSTART+RLENGTH)
        }

        printf "\033[1;34m%s\033[0m%s\n", interface, rest
        next
    }

    # IPv4 地址（inet 黄色，IP 和子网掩码绿色）
    /inet / {
        sub(/inet /, "\033[33minet \033[0m")
        gsub(/(([0-9]+\.){3}[0-9]+)|(0x[0-9a-fA-F]{8})/, "\033[32m&\033[0m")
        print
        next
    }

    # IPv6 地址（inet6 紫色，地址蓝色）
    /inet6 / {
        sub(/inet6 /, "\033[35minet6 \033[0m")
        gsub(/([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}/, "\033[34m&\033[0m")
        print
        next
    }

    # MAC 地址（lladdr 标签紫色，MAC 地址红色）
    /lladdr / {
        sub(/lladdr /, "\033[35mlladdr \033[0m")
        gsub(/([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}/, "\033[31m&\033[0m")
        print
        next
    }

    # 默认行（白色无格式）
    { print "\033[0m" $0 "\033[0m" }
'