# pre_install 钩子在安装文件复制到系统之前运行
pre_install() {
    echo "stop ftp service"
    systemctl stop vsftpd.service

}

# post_install: 在软件包安装后执行
post_install() {

    echo "user add tms and kdm"

    useradd tms
    usermod -m -d /media/cinema tms
    usermod -m -d /media/cinema tms
    useradd kdm
    usermod -m -d /media/kdm kdm
    usermod -m -d /media/kdm kdm


    echo "Checking vsftpd config and bakup"

    [ -f /etc/vsftpd.conf ] && mv /etc/vsftpd.conf /etc/vsftpd.conf.bakup
    [ -f /etc/pam.d/vsftpd ] && mv /etc/pam.d/vsftpd /etc/pam.d/vsftpd.bakup


    mv /etc/vsftpd.conf.tms /etc/vsftpd.conf
    mv /etc/pam.d/vsftpd.tms /etc/pam.d/vsftpd


    echo "start vsftpd.service"

    systemctl start vsftpd.service
    systemctl enable vsftpd.service
}

# pre_remove: 在软件包卸载前执行
pre_remove() {
    echo "Stopping and disabling pure-ftpd.service..."
    systemctl stop vsftpd.service
    systemctl disable vsftpd.service    
}

# post_remove: 在软件包卸载后执行
post_remove() {
    echo "Reloading systemd configuration after removal..."
    [ -f /etc/vsftpd.conf.bakup ] && mv /etc/vsftpd.conf.bakup /etc/vsftpd.conf
    [ -f /etc/pam.d/vsftpd.bakup ] && mv /etc/pam.d/vsftpd.bakup  /etc/pam.d/vsftpd

}