#!/usr/bin/env bash
# CrushPaper installer
#   curl -fsSL https://crushpaper.pages.dev/install.sh | bash
#
# Downloads the latest CrushPaper.zip from crushpaper.pages.dev, checks its
# SHA-256 against version.json, installs to /Applications (or ~/Applications)
# and opens it. Files fetched with curl are not quarantined, so there's no
# "can't be opened" dialog. Read this script before running it; it's short.
set -euo pipefail

SITE="${CRUSHPAPER_SITE:-https://crushpaper.pages.dev}"
APP_NAME="CrushPaper.app"
BUNDLE_ID="com.crushpaper.app"

bold=$'\033[1m'; dim=$'\033[2m'; yellow=$'\033[33m'; red=$'\033[31m'; reset=$'\033[0m'
say()  { printf '%s\n' "${yellow}▍${reset} $*"; }
fail() { printf '%s\n' "${red}✗ $*${reset}" >&2; exit 1; }

[[ "$(uname -s)" == "Darwin" ]] || fail "CrushPaper is a Mac app."
major="$(sw_vers -productVersion | cut -d. -f1)"
(( major >= 14 )) || fail "Needs macOS 14 Sonoma or later (you have $(sw_vers -productVersion))."

tmp="$(mktemp -d)"
trap 'rm -rf "$tmp"' EXIT

say "Checking latest version…"
curl -fsSL "$SITE/version.json" -o "$tmp/version.json" || fail "Couldn't reach $SITE"
field() { plutil -extract "$1" raw -o - "$tmp/version.json" 2>/dev/null || true; }
version="$(field version)"
zip_url="$(field zip)"
expected_sha="$(field sha256)"
[[ -n "$zip_url" ]] || zip_url="$SITE/download/CrushPaper.zip"
[[ "$zip_url" == https://* ]] || fail "Refusing non-HTTPS download: $zip_url"

say "Downloading CrushPaper ${version:-latest}…"
curl -fL --progress-bar "$zip_url" -o "$tmp/CrushPaper.zip" || fail "Download failed."

if [[ -n "$expected_sha" ]]; then
  actual_sha="$(shasum -a 256 "$tmp/CrushPaper.zip" | awk '{print $1}')"
  [[ "$actual_sha" == "$expected_sha" ]] || fail "Checksum mismatch, not installing. Expected $expected_sha, got $actual_sha."
  say "Checksum OK."
fi

ditto -x -k "$tmp/CrushPaper.zip" "$tmp/unpacked"
[[ -d "$tmp/unpacked/$APP_NAME" ]] || fail "Zip didn't contain $APP_NAME."

dest="/Applications"
[[ -w "$dest" ]] || { dest="$HOME/Applications"; mkdir -p "$dest"; }

if pgrep -xq CrushPaper; then
  say "Quitting running CrushPaper…"
  osascript -e "quit app id \"$BUNDLE_ID\"" >/dev/null 2>&1 || true
  for _ in 1 2 3 4 5 6 7 8 9 10; do pgrep -xq CrushPaper || break; sleep 0.3; done
fi

rm -rf "${dest:?}/$APP_NAME"
ditto "$tmp/unpacked/$APP_NAME" "$dest/$APP_NAME"
xattr -dr com.apple.quarantine "$dest/$APP_NAME" 2>/dev/null || true

say "Installed to ${bold}$dest/$APP_NAME${reset}"
open "$dest/$APP_NAME"
printf '%s\n' "" "  ${bold}⌘⇧T${reset} opens your board. Crush something." \
  "  ${dim}Uninstall: rm -rf \"$dest/$APP_NAME\"${reset}" ""