#!/usr/bin/env bash
# Unpack pinned Chromium builds of uBlock Origin Lite and Dark Reader into the
# Jarvis browser state directory. The helper loads these on the next start.
set -euo pipefail

UBOL_VERSION="${JARVIS_UBOL_VERSION:-2026.825.1619}"
DARK_READER_VERSION="${JARVIS_DARK_READER_VERSION:-4.9.129}"
ROOT="${JARVIS_BROWSER_EXTENSIONS:-${XDG_STATE_HOME:-$HOME/.local/state}/jarvis/browser/extensions}"
UBOL_URL="https://github.com/uBlockOrigin/uBOL-home/releases/download/${UBOL_VERSION}/uBOLite_${UBOL_VERSION}.chromium.zip"
DARK_READER_URL="https://github.com/darkreader/darkreader/releases/download/v${DARK_READER_VERSION}/darkreader-chrome-mv3.zip"

manifest_version() {
  local file="$1"
  [[ -f "$file" ]] || return 1
  python3 - "$file" << 'PY'
import json, sys
try:
    print(json.load(open(sys.argv[1], encoding="utf-8")).get("version", ""))
except Exception:
    raise SystemExit(1)
PY
}

install_zip() {
  local name="$1" url="$2" version="$3" dest="$4"
  local current=""
  current="$(manifest_version "${dest}/manifest.json" || true)"
  if [[ "$current" == "$version" ]]; then
    echo "${name} ${version} already installed"
    return 0
  fi
  local tmp
  tmp="$(mktemp -d)"
  trap 'rm -rf "$tmp"' RETURN
  echo "downloading ${name} ${version}"
  curl -fsSL -o "${tmp}/ext.zip" "$url"
  rm -rf "${tmp}/unpack"
  mkdir -p "${tmp}/unpack"
  unzip -q "${tmp}/ext.zip" -d "${tmp}/unpack"
  local manifest
  manifest="$(find "${tmp}/unpack" -name manifest.json -print -quit)"
  if [[ -z "$manifest" ]]; then
    echo "error: ${name} archive has no manifest.json" >&2
    exit 1
  fi
  local src
  src="$(dirname "$manifest")"
  local got
  got="$(manifest_version "${src}/manifest.json")"
  if [[ "$got" != "$version" ]]; then
    echo "error: ${name} archive version ${got} does not match ${version}" >&2
    exit 1
  fi
  rm -rf "$dest"
  mkdir -p "$(dirname "$dest")"
  mv "$src" "$dest"
  echo "installed ${name} ${version} at ${dest}"
  rm -rf "$tmp"
  trap - RETURN
}

mkdir -p "$ROOT"
install_zip "uBlock Origin Lite" "$UBOL_URL" "$UBOL_VERSION" "${ROOT}/ublock-origin-lite"
install_zip "Dark Reader" "$DARK_READER_URL" "$DARK_READER_VERSION" "${ROOT}/dark-reader"