function findTokenInText(text) {
  if (!text) {
    return "";
  }

  const queryIndex = text.indexOf("?");
  if (queryIndex === -1) {
    return "";
  }

  const rawQueryText = text.slice(queryIndex + 1);
  const hashIndex = rawQueryText.indexOf("#");
  const queryText =
    hashIndex === -1 ? rawQueryText : rawQueryText.slice(0, hashIndex);
  const search = new URLSearchParams(queryText);
  return search.get("token") || "";
}

export function extractTokenFromUrl(url) {
  if (!url) {
    return "";
  }

  const directToken = findTokenInText(url);
  if (directToken) {
    return directToken;
  }

  const hashIndex = url.indexOf("#");
  if (hashIndex === -1) {
    return "";
  }

  return findTokenInText(url.slice(hashIndex + 1));
}

export function getCurrentWebviewUrl() {
  // #ifdef H5
  return window.location.href || "";
  // #endif

  // #ifdef APP-PLUS
  if (typeof plus === "undefined" || !plus.webview) {
    return "";
  }

  const currentWebview =
    plus.webview.currentWebview() || plus.webview.getLaunchWebview();

  if (!currentWebview || typeof currentWebview.getURL !== "function") {
    return "";
  }

  return currentWebview.getURL() || "";
  // #endif

  return "";
}

export function getCurrentWebviewToken() {
  return extractTokenFromUrl(getCurrentWebviewUrl());
}