#!/bin/bash
. ./lib

options=()
if [ -f /usr/bin/yaourt ]; then
  options+=("Upgrade with yaourt" "yaourt -Syua")
  aurhelper=1
fi
if [ -f /usr/bin/packer ]; then
  options+=("Upgrade with packer" "packer -Syu")
  aurhelper=1
fi
if [ ! "$aurhelper" = "1" ]; then
  options+=("Install yaourt" "")
  options+=("Install packer" "")
  options+=("" "")
fi
options+=("Upgrade" "pacman -Syu")
options+=("Clean" "pacman -Sc")
options+=("" "")
options+=("Edit pacman.conf" "")
options+=("Edit mirrorlist" "")
options+=("" "")
if [ -f /var/lib/pacman/db.lck ]; then
  options+=("Remove db.lck" "rm /var/lib/pacman/db.lck")
  options+=("" "")
fi
if [ ! -f /usr/bin/downgrade ]; then
  options+=("Install downgrade" "")
  options+=("" "")
fi
if [ "$aurhelper" = "1" ]; then
  if [ ! -f /usr/bin/yaourt ]; then
    options+=("Install yaourt" "")
  fi
  if [ ! -f /usr/bin/packer ]; then
    options+=("Install packer" "")
  fi
fi

sel=$(whiptail --backtitle "$apptitle" --title "Updates Menu :" --menu "" --cancel-button "Back" 0 0 0 \
  "${options[@]}" \
  3>&1 1>&2 2>&3)
if [ ! "$?" = "0" ]; then
  exit 1
fi

checkaurdependencies(){
  if [ ! -f /usr/bin/automake ]; then
    pacman -S --needed base-devel
  fi
  if [ ! $(id -u "aurbuilder") ]; then
    newpass=$(< /dev/urandom tr -dc "@#*%&_A-Z-a-z-0-9" | head -c16)
    useradd -r -N -M -d /home/.aurbuilder -s /usr/bin/nologin aurbuilder
    echo -e "$newpass\n$newpass\n"|passwd aurbuilder
    newpass=""
  fi
  if [ ! -f /etc/sudoers.d/aurbuilder ]; then
    echo "aurbuilder ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/aurbuilder
    echo "root ALL=(aurbuilder) NOPASSWD: ALL" >> /etc/sudoers.d/aurbuilder
  fi
}
checkarchlinuxfrrepo(){
  if [ ! $(cat /etc/pacman.conf | grep "archlinuxfr") ]; then
    echo "[archlinuxfr]" >> /etc/pacman.conf
    echo "SigLevel = Never" >> /etc/pacman.conf
    echo 'Server = http://repo.archlinux.fr/$arch' >> /etc/pacman.conf
    pacman -Syy
  fi
}

clear
case $sel in
  'Upgrade') pacman -Syu;;
  'Upgrade with yaourt')
    checkaurdependencies
    sudo -u aurbuilder yaourt -Syua
  ;;
  'Upgrade with packer')
    checkaurdependencies
    sudo -u aurbuilder packer -Syu
  ;;
  'Clean') pacman -Sc;;
  'Edit pacman.conf') nano /etc/pacman.conf;;
  'Edit mirrorlist') nano /etc/pacman.d/mirrorlist;;
  'Remove db.lck') rm /var/lib/pacman/db.lck;;
  'Install downgrade')
    checkarchlinuxfrrepo
    pacman -S --needed downgrade
  ;;
  'Install yaourt')
    if(confirm "Yaourt allow you to access the AUR applications.\nBecause is not possible to compile applications as root,\nthis installer create an aurbuilder user.\n\nInstall yaourt ?") then
      clear
      checkaurdependencies
      checkarchlinuxfrrepo
      pacman -S --needed yaourt
    fi
  ;;
  'Install packer')
    if(confirm "Packer allow you to access the AUR applications.\nBecause is not possible to compile applications as root,\nthis installer create an aurbuilder user.\n\nInstall packer ?") then
      clear
      checkaurdependencies
      checkarchlinuxfrrepo
      pacman -S --needed packer
    fi
  ;;
esac

exit 0