#!/bin/bash
echo "1. 查看已安装的脚本"
echo "2. 删除脚本"

declare user_choice
read -p "请输入您的选择：" user_choice

declare script_directory="/var/script"
echo "请输入脚本安装目录，默认是 ${script_directory}"
read -p "请输入：" script_directory

if [[ -z $script_directory ]]; then
    script_directory="/var/script"
elif ! [[ -d $script_directory ]]; then
    echo "该目录不存在"
    exit
fi

function list_scripts() {
    declare -a installed_scripts
    declare script_name
    declare script_count=0
    for script in "$script_directory"/* ; do
        if [[ $script == "${script_directory}/*" ]];then
            echo "该目录没有脚本"
            exit
        fi
        script_name=$(awk -F '.' '{print $1}' <<< "$(basename $script)")
        if [[ $script_name == "linuxtool" ]]; then
            continue
        fi
        script_count=$(( script_count+1 ))
        echo "${script_count}.${script_name}"
        installed_scripts[$script_count]=$script_name
    done
    if [ ${#installed_scripts[@]} == 0 ]; then
        echo "该目录没有脚本"
        exit
    fi
    echo "${installed_scripts[@]}"
}

case $user_choice in
'1')
    list_scripts
    ;;
'2')
    installed_scripts=($(list_scripts))
    read -p "请输入要删除的序号（多个用空格隔开）：" script_name
    for i in $script_name ; do
        if [[ $i =~ [1-${#installed_scripts[@]}] ]]; then
            echo "开始删除 ${installed_scripts[$i]}"
            (crontab -l 2>/dev/null | grep -v "${installed_scripts[$i]}") | crontab - && echo "已删除脚本的自动任务"
            rm -rf "$script_directory/${installed_scripts[$i]}" &> /dev/null
            echo "删除完成"
        fi
    done
    ;;
esac