#!/usr/bin/env bash

######################################################################
# 3) install dependencies for compiling and loading
######################################################################

set -eu

function archlinux() {
  echo "##[group]Running pacman -Syu"
  sudo btrfs filesystem resize max /
  sudo pacman -Syu --noconfirm
  echo "##[endgroup]"

  echo "##[group]Install Development Tools"
  sudo pacman -Sy --noconfirm base-devel bc cpio dhclient dkms fakeroot \
    fio gdb inetutils jq less linux linux-headers lsscsi nfs-utils parted \
    pax perf python-packaging python-setuptools qemu-guest-agent ksh samba \
    sysstat rng-tools rsync wget
  echo "##[endgroup]"
}

function debian() {
  export DEBIAN_FRONTEND="noninteractive"

  echo "##[group]Running apt-get update+upgrade"
  sudo apt-get update -y
  sudo apt-get upgrade -y
  echo "##[endgroup]"

  echo "##[group]Install Development Tools"
  sudo apt-get install -y \
    acl alien attr autoconf bc cpio curl dbench dh-python dkms fakeroot \
    fio gdb gdebi git ksh lcov isc-dhcp-client jq libacl1-dev libaio-dev \
    libattr1-dev libblkid-dev libcurl4-openssl-dev libdevmapper-dev \
    libelf-dev libffi-dev libmount-dev libpam0g-dev libselinux-dev \
    libssl-dev libtool libtool-bin libudev-dev linux-headers-$(uname -r) \
    lsscsi nfs-kernel-server pamtester parted python3 python3-all-dev \
    python3-cffi python3-dev python3-distlib python3-packaging \
    python3-setuptools python3-sphinx qemu-guest-agent rng-tools rpm2cpio \
    rsync samba sysstat uuid-dev watchdog wget xfslibs-dev zlib1g-dev
  echo "##[endgroup]"
}

function freebsd() {
  export ASSUME_ALWAYS_YES="YES"

  echo "##[group]Install Development Tools"
  sudo pkg install -y autoconf automake autotools base64 checkbashisms fio \
    gdb gettext gettext-runtime git gmake gsed jq ksh93 lcov libtool lscpu \
    pkgconf python python3 pamtester pamtester qemu-guest-agent rsync \
    sysutils/coreutils
  sudo pkg install -xy \
    '^samba4[[:digit:]]+$' \
    '^py3[[:digit:]]+-cffi$' \
    '^py3[[:digit:]]+-sysctl$' \
    '^py3[[:digit:]]+-packaging$'
  echo "##[endgroup]"
}

# common packages for: almalinux, centos, redhat
function rhel() {
  echo "##[group]Running dnf update"
  echo "max_parallel_downloads=10" | sudo -E tee -a /etc/dnf/dnf.conf
  sudo dnf clean all
  sudo dnf update -y --setopt=fastestmirror=1 --refresh
  echo "##[endgroup]"

  echo "##[group]Install Development Tools"
  sudo dnf group install -y "Development Tools"
  sudo dnf install -y \
    acl attr bc bzip2 curl dbench dkms elfutils-libelf-devel fio gdb git \
    jq kernel-rpm-macros ksh libacl-devel libaio-devel libargon2-devel \
    libattr-devel libblkid-devel libcurl-devel libffi-devel ncompress \
    libselinux-devel libtirpc-devel libtool libudev-devel libuuid-devel \
    lsscsi mdadm nfs-utils openssl-devel pam-devel pamtester parted perf \
    python3 python3-cffi python3-devel python3-packaging kernel-devel \
    python3-setuptools qemu-guest-agent rng-tools rpcgen rpm-build rsync \
    samba sysstat systemd watchdog wget xfsprogs-devel zlib-devel
  echo "##[endgroup]"
}

function tumbleweed() {
  echo "##[group]Running zypper is TODO!"
  sleep 23456
  echo "##[endgroup]"
}

# Install dependencies
case "$1" in
  almalinux8)
    echo "##[group]Enable epel and powertools repositories"
    sudo dnf config-manager -y --set-enabled powertools
    sudo dnf install -y epel-release
    echo "##[endgroup]"
    rhel
    echo "##[group]Install kernel-abi-whitelists"
    sudo dnf install -y kernel-abi-whitelists
    echo "##[endgroup]"
    ;;
  almalinux9|centos-stream9)
    echo "##[group]Enable epel and crb repositories"
    sudo dnf config-manager -y --set-enabled crb
    sudo dnf install -y epel-release
    echo "##[endgroup]"
    rhel
    echo "##[group]Install kernel-abi-stablelists"
    sudo dnf install -y kernel-abi-stablelists
    echo "##[endgroup]"
    ;;
  archlinux)
    archlinux
    ;;
  debian*)
    debian
    echo "##[group]Install Debian specific"
    sudo apt-get install -yq linux-perf dh-sequence-dkms
    echo "##[endgroup]"
    ;;
  fedora*)
    rhel
    ;;
  freebsd*)
    freebsd
    ;;
  tumbleweed)
    tumbleweed
    ;;
  ubuntu*)
    debian
    echo "##[group]Install Ubuntu specific"
    sudo apt-get install -yq linux-tools-common libtirpc-dev \
      linux-modules-extra-$(uname -r)
    if [ "$1" != "ubuntu20" ]; then
      sudo apt-get install -yq dh-sequence-dkms
    fi
    echo "##[endgroup]"
    echo "##[group]Delete Ubuntu OpenZFS modules"
    for i in $(find /lib/modules -name zfs -type d); do sudo rm -rvf $i; done
    echo "##[endgroup]"
    ;;
esac

# This script is used for checkstyle + zloop deps also.
# Install only the needed packages and exit - when used this way.
test -z "${ONLY_DEPS:-}" || exit 0

# Start services
echo "##[group]Enable services"
case "$1" in
  freebsd*)
    # add virtio things
    echo 'virtio_load="YES"' | sudo -E tee -a /boot/loader.conf
    for i in balloon blk console random scsi; do
      echo "virtio_${i}_load=\"YES\"" | sudo -E tee -a /boot/loader.conf
    done
    echo "fdescfs /dev/fd fdescfs rw 0 0" | sudo -E tee -a /etc/fstab
    sudo -E mount /dev/fd
    sudo -E touch /etc/zfs/exports
    sudo -E sysrc mountd_flags="/etc/zfs/exports"
    echo '[global]' | sudo -E tee /usr/local/etc/smb4.conf >/dev/null
    sudo -E service nfsd enable
    sudo -E service qemu-guest-agent enable
    sudo -E service samba_server enable
    ;;
  debian*|ubuntu*)
    sudo -E systemctl enable nfs-kernel-server
    sudo -E systemctl enable qemu-guest-agent
    sudo -E systemctl enable smbd
    ;;
  *)
    # All other linux distros
    sudo -E systemctl enable nfs-server
    sudo -E systemctl enable qemu-guest-agent
    sudo -E systemctl enable smb
    ;;
esac
echo "##[endgroup]"

# Setup Kernel cmdline
CMDLINE="console=tty0 console=ttyS0,115200n8"
CMDLINE="$CMDLINE selinux=0"
CMDLINE="$CMDLINE random.trust_cpu=on"
CMDLINE="$CMDLINE no_timer_check"
case "$1" in
  almalinux*|centos*|fedora*)
    GRUB_CFG="/boot/grub2/grub.cfg"
    GRUB_MKCONFIG="grub2-mkconfig"
    CMDLINE="$CMDLINE biosdevname=0 net.ifnames=0"
    echo 'GRUB_SERIAL_COMMAND="serial --speed=115200"' \
      | sudo tee -a /etc/default/grub >/dev/null
    ;;
  ubuntu24)
    GRUB_CFG="/boot/grub/grub.cfg"
    GRUB_MKCONFIG="grub-mkconfig"
    echo 'GRUB_DISABLE_OS_PROBER="false"' \
      | sudo tee -a /etc/default/grub >/dev/null
    ;;
  *)
    GRUB_CFG="/boot/grub/grub.cfg"
    GRUB_MKCONFIG="grub-mkconfig"
    ;;
esac

case "$1" in
  archlinux|freebsd*)
    true
    ;;
  *)
    echo "##[group]Edit kernel cmdline"
    sudo sed -i -e '/^GRUB_CMDLINE_LINUX/d' /etc/default/grub || true
    echo "GRUB_CMDLINE_LINUX=\"$CMDLINE\"" \
      | sudo tee -a /etc/default/grub >/dev/null
    sudo $GRUB_MKCONFIG -o $GRUB_CFG
    echo "##[endgroup]"
    ;;
esac

# reset cloud-init configuration and poweroff
sudo cloud-init clean --logs
sleep 2 && sudo poweroff &
exit 0