#!/bin/bash

LOGGER_BIN="/usr/bin/logger -ist '$0'"
UUID=$(system_profiler SPHardwareDataType | awk '/UUID/ { print $3; }')
HOSTNAME=$(hostname -s)
BACKUPDIR="$HOME/Library/Mobile Documents/com~apple~CloudDocs/BACKUP/$HOSTNAME - $UUID"

# Check for Homebrew to be present, install if it's missing
if test ! $(which brew); then
    echo "Installing homebrew..."
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
fi
BREW_BIN=$(which brew)
BREW_PREFX=$(brew --prefix)
CASK_DIR=$(brew --caskroom)

# Update homebrew recipes
$BREW_BIN update
MACKUP_DIR="$HOME/Library/Mobile Documents/com~apple~CloudDocs/Mackup"
MACKUP_BIN=$(which mackup)
$MACKUP_BIN -f backup

mkdir -vp "$BACKUPDIR"
pushd "$BACKUPDIR" >/dev/null
cp -vf Brewfile{,.bak}
$BREW_BIN bundle dump --describe --quiet --force | $LOGGER_BIN
popd >/dev/null