#! /bin/bash

if [ -z "$1" ] || [ "$1" = "--help" ]; then
  printf "%s\n" "Usage: app-cleaner.sh /path/to/app.app"
  exit 0
fi

IFS=$'\n'

red=$(tput setaf 1)
normal=$(tput sgr0)

printf "%s\n" "Finding app data…"
sleep 1

locations=(
  "$HOME/Library"
  "$HOME/Library/Application Scripts"
  "$HOME/Library/Application Support"
  "$HOME/Library/Application Support/CrashReporter"
  "$HOME/Library/Containers"
  "$HOME/Library/Caches"
  "$HOME/Library/HTTPStorages"
  "$HOME/Library/Group Containers"
  "$HOME/Library/Internet Plug-Ins"
  "$HOME/Library/LaunchAgents"
  "$HOME/Library/Logs"
  "$HOME/Library/Preferences"
  "$HOME/Library/Preferences/ByHost"
  "$HOME/Library/Saved Application State"
  "$HOME/Library/WebKit"
  "/Applications"
  "/Library"
  "/Library/Application Support"
  "/Library/Application Support/CrashReporter"
  "/Library/Caches"
  "/Library/Extensions"
  "/Library/Internet Plug-Ins"
  "/Library/LaunchAgents"
  "/Library/LaunchDaemons"
  "/Library/Logs"
  "/Library/Preferences"
  "/Library/PrivilegedHelperTools"
  "/private/var/db/receipts"
  "/usr/local/bin"
  "/usr/local/etc"
  "/usr/local/opt"
  "/usr/local/sbin"
  "/usr/local/share"
  "/usr/local/var"
  "/usr/local/libexec"
  $(getconf DARWIN_USER_CACHE_DIR | sed "s/\/$//")
  $(getconf DARWIN_USER_TEMP_DIR | sed "s/\/$//")
)

paths=()
app_name=$1
bundle_identifier=$2

for location in "${locations[@]}"; do
  paths+=($(find "$location" -iname "*$app_name*" -maxdepth 1 -prune 2>&1 | grep -v "No such file or directory" | grep -v "Operation not permitted" | grep -v "Permission denied"))
done

if [ -n "$bundle_identifier" ]; then
  for location in "${locations[@]}"; do
    paths+=($(find "$location" -iname "*$bundle_identifier*" -maxdepth 1 -prune 2>&1 | grep -v "No such file or directory" | grep -v "Operation not permitted" | grep -v "Permission denied"))
  done
fi

if [ ${#paths[@]} -eq 0 ]; then
  printf "%s\n" "No data found…"
  exit 0
fi

paths=($(printf "%s\n" "${paths[@]}" | sort -u));

printf "%s\n" "${paths[@]}"

printf "$red%s$normal" "Move app data to trash (y or n)? "
read -r answer
if [ "$answer" = "y" ]; then
  printf "%s\n" "Moving app data to trash…"
  sleep 1
  posixFiles=$(printf ", POSIX file \"%s\"" "${paths[@]}" | awk '{print substr($0,3)}')
  osascript -e "tell application \"Finder\" to delete { $posixFiles }" > /dev/null
  printf "%s\n" "Done"

  app_name="$(echo "$app_name" | tr ' ' '-')"
  brew list "$app_name" && brew uninstall --force --zap "$app_name"
fi