#!/bin/sh -e

if [ "$(uname -s)" = "Darwin" ]; then
	READLINK="greadlink"
	if ! command -v "${READLINK}" >/dev/null 2>&1; then
		READLINK="readlink"
	fi
else
	READLINK="readlink"
fi

install_files() {
	target_dir="$1"
	source_dir="$("${READLINK}" -f "${2:-.}")"
	target_filename_prefix="${3}"

	mkdir -vp "${target_dir}"
	target_dir="$("${READLINK}" -f "${target_dir}")"

	if [ ! -d "${source_dir}" ]; then
		echo "Source directory ${source_dir} does not exist, skipping."
		return
	fi
	for f in "${source_dir}"/*; do
		case "$(basename "$f")" in
		dotfiles)
			(install_files "${target_dir}" "$f" .)
			;;
		*.jq)
			tmpfile="$(mktemp)"
			if [ -f "$f" ]; then
				tmpfile="$(mktemp)"
				target_file="${target_dir}/$(basename "$f" .jq)"
				if [ -f "$target_file" ]; then
					cat "$target_file"
				else
					echo "{}"
				fi | jq "$(cat "$f")" > "$tmpfile"
				mv -v "$tmpfile" "$target_file"
			else
				echo "Expected source file with .jq extension not to be a directory."
				exit 1
			fi
			;;
		*)
			if [ -d "$f" ]; then
				(install_files "${target_dir}/${target_filename_prefix}$(basename "$f")" "$f")
			else
				cp -v "$f" "${target_dir}/${target_filename_prefix}$(basename "$f")"
			fi
			;;
		esac
	done
}

remove_file() {
	local path="$1" sha256hash="${2:-}"
	if [ ! -f "$path" ]; then
		return
	fi
	if [ -n "${sha256hash}" ] && ! sha256sum -c - <<< "${sha256hash} ${path}" >/dev/null 2>/dev/null; then
		return
	fi
	rm -v "$path"
}

###

install_files "${HOME}" home
install_files "/etc" etc

if command -v fc-cache >/dev/null 2>&1; then
	fc-cache -f
fi

if command -v systemctl >/dev/null 2>&1; then
	systemctl --user disable tweak-cpu-usage
	remove_file "${HOME}/.config/systemd/user/tweak-cpu-usage.service" 6abf4488aa268b0171cb400270e2531c8fb067ebe8216c72d337f8c056952f9e
	remove_file "${HOME}/.local/bin/tweak-cpu-usage" 7da1938cdf78e583140638848f8bf8a268c2710e4fa3462bca8373e438d67491
fi

# KDE 6
if command -v kwriteconfig6 >/dev/null 2>&1; then
	# set sans font to what we define in fontconfig
	for key in "General:font" "General:menuFont" "General:toolBarFont" "WM:activeFont"; do
		IFS=: read group key <<<"$key"
		kwriteconfig6 --file kdeglobals --group "$group" --key "$key" "Sans Serif,9,-1,5,400,0,0,0,0,0,0,0,0,0,0,1"
	done
	# set smallest sans font
	kwriteconfig6 --file kdeglobals --group "General" --key "smallestReadableFont" "Sans Serif,8,-1,5,400,0,0,0,0,0,0,0,0,0,0,1"
	# set mono font to what we define in fontconfig
	kwriteconfig6 --file kdeglobals --group "General" --key "fixed" "Monospace,9,-1,5,400,0,0,0,0,0,0,0,0,0,0,1"
fi