#!/usr/bin/env bash

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# O comando para usar este script é:
# curl -sSL https://linite.linuxuniverse.com.br | bash

export mainrelease="DISTRIB_RELEASE=22.04"

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export NEEDRESTART_MODE=a
export DEBIAN_FRONTEND=noninteractive

export list00="docker.io docker-buildx \
net-tools speedtest-cli whois w3m w3m-img netdiscover iperf arp-scan traceroute sshpass fail2ban network-manager \
libatasmart-bin smartmontools zip unzip p7zip-full 7zip p7zip cifs-utils rsnapshot rclone iotop \
haveged beep stress lm-sensors cmatrix btop inxi tree hwloc figlet dialog \
gpm tmux xinit xorg openbox pavucontrol caja epiphany-browser gparted gnome-disk-utility terminator rdesktop"

# samba samba-dsdb-modules samba-vfs-modules 

function sysctlconf {
echo -e "kernel.sysrq=1
vm.panic_on_oom=1
vm.swappiness=10
kernel.panic=5
#net.ipv4.ip_forward=1
#net.ipv6.conf.all.disable_ipv6=1
#net.ipv6.conf.default.disable_ipv6=1" | sudo tee -a /etc/sysctl.conf
}

function journaladjust {
echo "$password" | sudo -S echo -e "Storage=persistent
SystemMaxUse=5G
SystemKeepFree=10G" | sudo tee -a /etc/systemd/journald.conf
}

function tmpfstab {
echo "$password" | sudo -S echo -e "
# Temp to ram!
tmpfs /tmp tmpfs defaults 0 0
tmpfs /var/tmp tmpfs defaults 0 0" | sudo tee -a /etc/fstab
}

function netplan1 {
echo -e "
#network:
#    ethernets:
#        renderer: NetworkManager
#        enp4s0:
#            addresses: [192.168.250.10/24]
#            gateway4: 192.168.250.1
#            dhcp4: no
##           optional: true
#            nameservers:
#              addresses: [192.168.250.1]
#              #addresses: [200.225.197.34, 200.225.197.37] 
#              #addresses: [200.175.89.139, 200.175.5.139]
#              #addresses: [8.8.4.4, 8.8.8.8]
#              #addresses: [1.1.1.1, 1.0.0.1]
#    version: 2" | sudo tee -a /etc/netplan/00-installer-config.yaml

echo -e "
#network:
#  ethernets:
#    eth0:
#      dhcp4: true
#      optional: true

#    eth1: # THIS!
#      dhcp4: no
#      optional: true
#      addresses: [172.16.1.2/24]
#  version: 2" | sudo tee -a /etc/netplan/00-installer-config.yaml
}

function smbconfig {
  sudo mkdir -p /etc/samba/
  curl -sSL https://raw.githubusercontent.com/urbancompasspony/docker/main/SAMBA_Model/smbAD.conf | sudo tee /etc/samba/SMB-AD-Model.conf
}

function beep {
  wget https://raw.githubusercontent.com/urbancompasspony/linux.cheat.sheet/main/beep/beep.sh -O /home/administrador/.beep.sh
  sudo bash /home/administrador/.beep.sh
  echo "@reboot sleep 60; bash /home/administrador/.beep.sh" | tee /tmp/crontab_new
  sudo crontab -l | cat - /tmp/crontab_new | tee crontab.txt && sudo crontab crontab.txt
  rm /home/administrador/crontab.txt
}

function mkswap0 {
  [ -f /swapfile ] && {
    echo "." >/dev/zero
  } || {
    sudo dd if=/dev/zero of=/swapfile bs=1k count=1000000
    sudo chmod 0600 /swapfile
    sudo mkswap /swapfile; sudo swapon /swapfile
    echo "/swapfile none swap sw 0 0" | sudo tee -a /etc/fstab
  }
}

function motd00 {
  sudo apt update; sudo apt install figlet -y; sudo rm -R /etc/update-motd.d/*
  sudo wget https://raw.githubusercontent.com/urbancompasspony/server/main/MOTD/00-header -O /etc/update-motd.d/00-header
  sudo wget https://raw.githubusercontent.com/urbancompasspony/server/main/MOTD/20-sysinfo -O /etc/update-motd.d/20-sysinfo
  sudo wget https://raw.githubusercontent.com/urbancompasspony/server/main/MOTD/90-dynamic-motd -O /etc/update-motd.d/90-dynamic-motd
  sudo chmod +x /etc/update-motd.d/*
}

function installer {
  sudo apt install $1 --no-install-recommends -y

  mkdir -p /home/administrador/.config/openbox
  wget https://raw.githubusercontent.com/urbancompasspony/linux.cheat.sheet/main/Wayland/LabWC/menu.xml -O .config/openbox/menu.xml

  [ $(arch) = "aarch64" ] && {
    sudo apt install linux-modules-extra-raspi -y
    return
  } || {
    sudo apt install qemu-system qemu-utils qemu-user qemu-kvm qemu-guest-agent libvirt-clients libvirt-daemon-system bridge-utils virt-manager ovmf dnsmasq genisoimage -y
    sudo usermod -aG libvirt administrador
    sudo usermod -aG libvirt-qemu administrador
    return
  }
}

[ "$EUID" -ne 0 ] || {
  clear
  echo "Não execute esse script como Root agora!"
  exit
  }

sysversion=$(cat /etc/lsb-release | awk -F: '/RELEASE/ {print $0}' | awk '{print $1}')

[ $sysversion = "$mainrelease" ] && {
  echo . > /dev/null
} || {
  clear; echo ""; echo "SISTEMA INADEQUADO. SAINDO...."
  sleep 10
  exit
}

[ -f /home/administrador/.installed ] && {
  clear; echo ""; echo "Sistema já configurado. Saindo..."; echo ""; sleep 3
  exit
} || {
  clear
  echo ""
  echo "Bem vindo ao Preparo de Sistema - v1.0"
  echo "Se esta executando esse comando apos instalar o Ubuntu Server AutoInstaller, a senha padrao eh: ubuntu"
  sleep 5
  echo "5"; sleep 1
  echo "4"; sleep 1
  echo "3"; sleep 1
  echo "2"; sleep 1
  echo "1"; sleep 1
  clear; echo "Preparando sistema...."; echo ""
  curl -sSL https://raw.githubusercontent.com/urbancompasspony/bashrc/main/install.sh | bash
  . .bashrc
  clear; echo "Criando SWAP caso não exista"
  mkswap0
  clear; echo "Removendo pacotes inuteis"; echo ""
  sudo apt purge needrestart cloud-init snapd unattended-upgrades plank deja-dup evolution evolution-data-server bluez blueman bluetooth -y
  clear; echo "Atualizando o sistema"; echo ""
  sudo apt update
  sudo apt upgrade -y
  sudo apt autoremove -y
  clear; echo "Instalando pacotes...."
  installer "$list00"
  sleep 3
  clear; echo "Validando usuario Administrador para CONTAINERS"
  sudo usermod -aG docker administrador
  sleep 3
  clear; echo "Desativando serviços inuteis"
  sudo systemctl disable NetworkManager-wait-online.service
  sudo systemctl mask NetworkManager-wait-online.service
  sudo systemctl disable systemd-networkd-wait-online.service
  sudo systemctl mask systemd-networkd-wait-online.service
  sleep 3
  clear; echo "Aplicando recursos extras ao SYSCTL"
  sysctlconf
  sleep 3
  clear; echo "Ajustando MOTD"
  motd00
  sleep 3
  clear; echo "Ajustando JOURNAL"
  journaladjust
  sleep 3
  clear; echo "Adicionando modelo Netplan"
  netplan1
  sleep 3
  clear; echo "Criando novos /tmp"
  tmpfstab
  sleep 3
  clear; echo "Definindo permissoes ao LibVirt"
  sudo chmod 777 /var/run/libvirt/libvirt-sock
  sleep 3
  clear; echo "Adicionando modelo SAMBA AD"
  smbconfig
  sleep 3
  clear; echo "Criando um Beep bonitinho se tiver speaker no servidor!"
  beep
  sleep 3
  clear; echo "Instalação concluida!"
  sleep 5
  touch /home/administrador/.installed
  sudo reboot
}

exit 1