#!/bin/bash

## Build xmonad and install packages to make it run at full capacity

prebuild () {
    # TODO this can be integrated into stack with nix
    # for x11
    make_pkgs=(libx11 libxrandr libxss)
    # for alsa
    make_pkgs=(alsa-lib)
    # for iwlib
    make_pkgs=(wireless_tools)
    # for x11-xft
    make_pkgs+=(libxft)
    # for xmobar
    make_pkgs+=(libxpm)

    sudo pacman --noconfirm -S "${make_pkgs[@]}"
}

build () {
    stack install
}

query='.[].success |
objects |
.root.tree |
..|.left?.data, ..|.right?.data, .data? |
select(. != null) |
.fulfillment |
select(. != null) |
add | select(. != null)'

jq_type () {
    echo "$1" | jq --raw-output "select(.type==\"$2\") | .name" | sort | uniq
}

postbuild () {
    # these are extra packages that pertain to processes outside xmonad but are
    # still required/desired to make it work correctly
    xmonad_pkgs=(xinit autorandr picom)

    raw=$(xmonad --deps | jq "$query")

    mapfile -t official < <(jq_type "$raw" "Official")
    mapfile -t local < <(jq_type "$raw" "AUR")

    if ! pacman -Si "${official[@]}" > /dev/null; then
        echo "At least one official package doesn't exist."
        exit 1
    fi

    if ! yay -Si "${local[@]}"; then
        echo "At least one local package doesn't exist."
        exit 1
    fi
    
    sudo pacman --noconfirm -S "${xmonad_pkgs[@]}" "${official[@]}"
    yay --needed --noconfirm --norebuild --removemake -S "${local[@]}"
}

prebuild
build
postbuild