#!/usr/bin/env bash
#
# CleanClip - one-command installer
#
#   curl -fsSL https://is.gd/cleanclip | bash
#
# Installs Hammerspoon (if needed), drops in CleanClip, locks the Hammerspoon
# preferences to a clean background setup, and launches it. Works with no
# developer tools installed (downloads Hammerspoon straight from GitHub).

set -euo pipefail

GIST_RAW="https://gist.githubusercontent.com/spbavarva/d6e29e12d3fc8572b62c8523ffccc2a6/raw"
LUA_NAME="cleanclip.lua"
HS_DIR="$HOME/.hammerspoon"
APP_DIR="$HS_DIR/cleanclip"
HS_PREF="org.hammerspoon.Hammerspoon"

ask() {  # prompts work even under `curl ... | bash`; no terminal => assume yes
  local prompt="$1" reply=""
  { read -r -p "$prompt" reply </dev/tty; } 2>/dev/null || reply=""
  echo "$reply"
}
say()  { printf '\033[1;36m▸ %s\033[0m\n' "$1"; }
ok()   { printf '\033[1;32m✓ %s\033[0m\n' "$1"; }
warn() { printf '\033[1;33m! %s\033[0m\n' "$1"; }

[ "$(uname)" = "Darwin" ] || { warn "macOS only. Aborting."; exit 1; }

echo
say "CleanClip installer"
echo "  Auto-cleans Claude Code copies + adds a clipboard-history popup (tap"
echo "  left ⌥ + left ⌘). Installs Hammerspoon if you don't already have it."
echo
case "$(ask 'Continue? [Y/n] ')" in [nN]*) echo "Cancelled."; exit 0 ;; esac

# --- 1. Hammerspoon ---------------------------------------------------------
if [ -d "/Applications/Hammerspoon.app" ]; then
  ok "Hammerspoon already installed."
elif command -v brew >/dev/null 2>&1; then
  say "Installing Hammerspoon via Homebrew..."; brew install --cask hammerspoon; ok "Installed."
else
  say "Downloading Hammerspoon from GitHub (no Homebrew needed)..."
  tmp="$(mktemp -d)"; trap 'rm -rf "$tmp"' EXIT
  url="$(curl -fsSL https://api.github.com/repos/Hammerspoon/hammerspoon/releases/latest \
        | grep 'browser_download_url' | grep '\.zip' | head -1 | cut -d'"' -f4)"
  [ -n "$url" ] || { warn "Could not find Hammerspoon download URL."; exit 1; }
  curl -fsSL -o "$tmp/hs.zip" "$url"
  unzip -q "$tmp/hs.zip" -d "$tmp"
  if [ -w /Applications ]; then mv "$tmp/Hammerspoon.app" /Applications/
  else warn "Need your password to move Hammerspoon into /Applications."; sudo mv "$tmp/Hammerspoon.app" /Applications/; fi
  ok "Installed."
fi

# --- 2. CleanClip script ----------------------------------------------------
say "Installing CleanClip..."
mkdir -p "$APP_DIR"
curl -fsSL -o "$APP_DIR/$LUA_NAME" "$GIST_RAW/$LUA_NAME"
ok "Saved to $APP_DIR/$LUA_NAME"

# --- 3. Wire up init.lua (idempotent; strips any older version) -------------
touch "$HS_DIR/init.lua"
clean_init="$(grep -v -e 'CleanClip managed block' -e 'cleanclip' \
              -e 'claude-clipboard-cleaner' -e 'Claude Clipboard Cleaner' \
              "$HS_DIR/init.lua" 2>/dev/null || true)"
printf '%s\n' "$clean_init" > "$HS_DIR/init.lua"
{
  printf '\n-- CleanClip managed block (auto-generated by installer)\n'
  printf 'dofile("%s/%s")\n' "$APP_DIR" "$LUA_NAME"
} >> "$HS_DIR/init.lua"
ok "Hammerspoon config wired up."

# --- 4. Lock Hammerspoon preferences ----------------------------------------
# Launch-at-login, dock/menu icon, console-on-top are enforced by cleanclip.lua
# on load. Here we set the ones with no Lua API:
defaults write "$HS_PREF" HSUploadCrashData -bool false 2>/dev/null || true   # crash data OFF
defaults write "$HS_PREF" SUEnableAutomaticChecks -bool true 2>/dev/null || true  # updates ON
defaults write "$HS_PREF" "cleanclip.menuBarVisible" -bool true 2>/dev/null || true # show icon
defaults write "$HS_PREF" "cleanclip.welcomed" -bool false 2>/dev/null || true     # show welcome card
ok "Preferences set (crash reporting off, updates on, menu icon on)."

# --- 5. Launch / reload -----------------------------------------------------
say "Launching Hammerspoon..."
osascript -e 'tell application "Hammerspoon" to quit' >/dev/null 2>&1 || true
sleep 1
open -a Hammerspoon

# --- 6. Accessibility (required for the clipboard shortcut) ------------------
echo
ok "Installed!"
echo
warn "One manual step — the ⌥⌘ clipboard popup needs Accessibility permission:"
echo "  Allow 'Hammerspoon' under System Settings → Privacy & Security → Accessibility."
echo "  Opening that page for you now..."
open "x-apple.systempreferences:com.apple.preference.security?Privacy_Accessibility" >/dev/null 2>&1 || true
echo
echo "Then: copies auto-clean, and tapping left ⌥ + left ⌘ opens your clipboard history. 🎉"
echo "(A styled welcome card will appear once Hammerspoon finishes loading.)"