#!/usr/bin/env bash

# Provisions arch linux. Should be run from a non-root user, after the bootstrap
# script (and reboot).

set -e

PWD=$(dirname $0)

pacman='sudo pacman --needed --noconfirm'
pacaur='pacaur --needed --noconfirm'

exists() { command -v "$1" >/dev/null; }


########################################
#
# Bootstrap
#
########################################

if ! ping -c1 google.com >/dev/null; then
    >&2 echo "No internet connection detected!"
    exit 1
elif [[ $(id -u) == 0 ]]; then
    >&2 echo "Should not be run as root!"
    exit 2
fi

# Essential utilities
$pacman -S wget git curl tree rsync openssh dnsutils

# Set up pacaur (AUR helper)
if ! exists pacaur; then
    TEMP="$(mktemp -d)"
    function cleanup {
        rm -rf "$TEMP"
    }
    trap cleanup EXIT

    pushd "$TEMP"
    curl -o PKGBUILD https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h=cower && makepkg --needed --noconfirm --skippgpcheck -sri
    curl -o PKGBUILD https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h=pacaur && makepkg --needed --noconfirm --skippgpcheck -sri
    popd

    if ! exists pacaur; then
        >&2 echo "Pacaur wasn't successfully installed"
        exit 3
    fi
fi


## Bootstrap
# Helpful utilities
$pacaur -S ripgrep tmux hub gist bc keybase-bin cronie
sudo systemctl enable cronie.service

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.d/99-sysctl.conf && sudo sysctl --system

if [[ -z $SERVER ]]; then
    if exists crontab; then
        [[ -f $PWD/crontab ]] && crontab "$PWD/crontab"
    fi

    hookdest=/etc/pacman.d/hooks
    sudo mkdir -p "$hookdest"
    for hook in $PWD/$hookdest/*.hook; do
        [[ -f $hookdest/${hook##*/} ]] || sudo ln -svf "$hook" "$hookdest/"
    done

    # desktop essentials
    $pacaur -S \
        xorg-xinit xorg-server \
        lightdm lightdm-webkit2-greeter \
        bspwm sxhkd compton rvxt-unicode rvxt-unicode-terminfo \
        xcb-proto polybar \
        dunst libnotify \
        feh sxiv maim slop-opengl neofetch-git pass youtube-dl xdotool \
        redshift chromium chromium-widevine \
        alsa-utils \
        dictd dict-gcide \
        arc-gtk-theme

    # fonts
    $pacaur -S ttf-fira-{mono,sans} ttf-dejavu ttf-liberation ttf-font-awesome
fi