PluginConfig.js

function parseJson(raw, fallback) {
  try {
    return JSON.parse(String(raw || ""))
  } catch (e) {
    return fallback
  }
}

function normalizeMode(value) {
  var mode = String(value || "").toLowerCase().replace(/\s+/g, "")
  if (mode === "win31" || mode === "win3.1" || mode === "windows31" || mode === "windows3.1") return "win31"
  if (mode === "winxp" || mode === "xp" || mode === "windowsxp") return "win31"
  if (mode === "badges" || mode === "badge" || mode === "hints") return "badges"
  return ""
}

function numberOr(value, fallback) {
  var n = Number(value)
  return isFinite(n) && n >= 0 ? n : fallback
}

function merge(fileRaw, payloadRaw) {
  var file = parseJson(fileRaw, {})
  if (!file || typeof file !== "object" || Array.isArray(file)) file = {}
  var payload = parseJson(payloadRaw, {})
  if (!payload || typeof payload !== "object" || Array.isArray(payload)) payload = {}

  var win31 = file.win31 && typeof file.win31 === "object" ? file.win31 : {}
  var mode = normalizeMode(payload.mode) || normalizeMode(file.defaultMode) || "badges"
  var duration = numberOr(payload.duration, numberOr(file.duration, 15000))
  var showTitle = payload.showTitle !== undefined ? !!payload.showTitle : (win31.showTitle !== false)

  return {
    mode: mode,
    duration: duration,
    showTitle: showTitle
  }
}

if (typeof module !== "undefined" && module.exports) {
  module.exports = {
    parseJson: parseJson,
    normalizeMode: normalizeMode,
    merge: merge
  }
}