#!/bin/sh
# Copyright (C) Juewuy

[ -n "$__IS_MODULE_USERGUIDE_LOADED" ] && return
__IS_MODULE_USERGUIDE_LOADED=1

forwhat() {
    while true; do
        echo "-----------------------------------------------"
        echo -e "\033[30;46m 欢迎使用ShellCrash新手引导！ \033[0m"
        echo "-----------------------------------------------"
        echo -e "\033[33m请先选择你的使用环境： \033[0m"
        echo -e "\033[0m(你之后依然可以在设置中更改各种配置)\033[0m"
        echo "-----------------------------------------------"
        echo -e " 1 \033[32m路由设备配置局域网透明代理\033[0m"
        echo -e " 2 \033[36mLinux设备仅配置本机代理\033[0m"
        [ -f "$CFG_PATH.bak" ] && echo -e " 3 \033[33m还原之前备份的设置\033[0m"
        echo "-----------------------------------------------"
        read -pr "请输入对应数字 > " num
        case "$num" in
        "" | 1)
            # 设置运行模式
            redir_mod="Mix"
            echo "$cputype" | grep -Eq 'linux.*mips.*' && {
                if grep -qE '^TPROXY$' /proc/net/ip_tables_targets || modprobe xt_TPROXY >/dev/null 2>&1; then
                    redir_mod="Tproxy"
                else
                    redir_mod="Redir"
                fi
            }

            [ -z "$crashcore" ] && crashcore=meta
            setconfig crashcore "$crashcore"
            setconfig redir_mod "$redir_mod"
            setconfig dns_mod mix
            setconfig firewall_area '1'
            # 默认启用绕过CN-IP
            setconfig cn_ip_route ON
            # 自动识别IPV6
            [ -n "$(ip a 2>&1 | grep -w 'inet6' | grep -E 'global' | sed 's/.*inet6.//g' | sed 's/scope.*$//g')" ] && {
                setconfig ipv6_redir ON
                setconfig ipv6_support ON
                setconfig ipv6_dns ON
                setconfig cn_ipv6_route ON
            }
            # 设置开机启动
            if [ -f /etc/rc.common ] && [ "$(cat /proc/1/comm)" = "procd" ]; then
                /etc/init.d/shellcrash enable
            fi

            ckcmd systemctl && [ "$(cat /proc/1/comm)" = "systemd" ] && systemctl enable shellcrash.service >/dev/null 2>&1
            rm -rf "$CRASHDIR"/.dis_startup
            autostart=enable
            # 检测IP转发
            if [ "$(cat /proc/sys/net/ipv4/ip_forward)" = "0" ]; then
                echo "-----------------------------------------------"
                echo -e "\033[33m检测到你的设备尚未开启ip转发，局域网设备将无法正常连接网络，是否立即开启？\033[0m"
                read -pr "是否开启？(1/0) > " res
                [ "$res" = 1 ] && {
                    echo 'net.ipv4.ip_forward = 1' >>/etc/sysctl.conf
                    sysctl -w net.ipv4.ip_forward=1
                } && echo "已成功开启ipv4转发，如未正常开启，请手动重启设备！" || echo "开启失败！请自行谷歌查找当前设备的开启方法！"
            fi
            # 禁止docker启用的net.bridge.bridge-nf-call-iptables
            sysctl -w net.bridge.bridge-nf-call-iptables=0 >/dev/null 2>&1
            sysctl -w net.bridge.bridge-nf-call-ip6tables=0 >/dev/null 2>&1
            break
            ;;
        2)
            setconfig redir_mod "Redir"
            echo "$cputype" | grep -Eq "linux.*mips.*" && setconfig crashcore "clash"
            setconfig common_ports "OFF"
            setconfig firewall_area '2'
            break
            ;;
        3)
            mv -f "$CFG_PATH.bak" "$CFG_PATH"
            echo -e "\033[32m脚本设置已还原！\033[0m"
            echo -e "\033[33m请重新启动脚本！\033[0m"
            exit 0
            ;;
        *)
            errornum
            sleep 1
            ;;
        esac
    done
}

# 新手引导
userguide() {
    . "$CRASHDIR"/libs/check_dir_avail.sh
    forwhat

    # 检测小内存模式
    dir_size=$(dir_avail "$CRASHDIR")
    if [ "$dir_size" -lt 10240 ]; then
        echo "-----------------------------------------------"
        echo -e "\033[33m检测到你的安装目录空间不足10M，是否开启小闪存模式？\033[0m"
        echo -e "\033[0m开启后核心及数据库文件将被下载到内存中，这将占用一部分内存空间\033[0m"
        echo -e "\033[0m每次开机后首次运行服务时都会自动的重新下载相关文件\033[0m"
        echo "-----------------------------------------------"
        read -pr "是否开启？(1/0) > " res
        [ "$res" = 1 ] && {
            BINDIR=/tmp/ShellCrash
            setconfig BINDIR /tmp/ShellCrash "$CRASHDIR"/configs/command.env
        }
    fi

    # 启用推荐的自动任务配置
    . "$CRASHDIR"/menus/5_task.sh && task_recom

    # 小米设备软固化
    if [ "$systype" = "mi_snapshot" ]; then
        echo "-----------------------------------------------"
        echo -e "\033[33m检测到为小米路由设备，启用软固化可防止路由升级后丢失SSH\033[0m"
        read -pr "是否启用软固化功能？(1/0) > " res
        [ "$res" = 1 ] && mi_autoSSH
    fi

    # 提示导入订阅或者配置文件
    if [ ! -s "$CRASHDIR"/yamls/config.yaml ] && [ ! -s "$CRASHDIR"/jsons/config.json ]; then
        echo "-----------------------------------------------"
        echo -e "\033[32m是否导入配置文件？\033[0m(这是运行前的最后一步)"
        echo -e "\033[0m你必须拥有一份配置文件才能运行服务！\033[0m"
        echo "-----------------------------------------------"
        read -pr "现在开始导入？(1/0) > " res
        [ "$res" = 1 ] && inuserguide=1 && {
            . "$CRASHDIR"/menus/6_core_config.sh && set_core_config
            inuserguide=""
        }
    fi

    # 回到主界面
    echo "-----------------------------------------------"
    echo -e "\033[36m很好！现在只需要执行启动就可以愉快的使用了！\033[0m"
    echo "-----------------------------------------------"
    read -pr "立即启动服务？(1/0) > " res
    [ "$res" = 1 ] && start_core && sleep 2
    return 0
}