mozilla.org/devtools-user/";

/**
 * Get the MDN URL for the specified header.
 *
 * @param {string} header Name of the header for the baseURL to use.
 *
 * @return {string} The MDN URL for the header, or null if not available.
 */
function getHeadersURL(header) {
  const lowerCaseHeader = header.toLowerCase();
  const idx = SUPPORTED_HEADERS.findIndex(
    item => item.toLowerCase() === lowerCaseHeader
  );
  return idx > -1
    ? `${MDN_URL}Web/HTTP/Reference/Headers/${SUPPORTED_HEADERS[idx] + getGAParams()}`
    : null;
}

/**
 * Get the MDN URL for the specified HTTP status code.
 *
 * @param {string} HTTP status code for the baseURL to use.
 *
 * @return {string} The MDN URL for the HTTP status code, or null if not available.
 */
function getHTTPStatusCodeURL(statusCode, panelId) {
  return (
    (SUPPORTED_HTTP_CODES.includes(statusCode)
      ? `${MDN_URL}Web/HTTP/Reference/Status/${statusCode}`
      : MDN_STATUS_CODES_LIST_URL) + getGAParams(panelId)
  );
}

/**
 * Get the URL of the Timings tag for Network Monitor.
 *
 * @return {string} the URL of the Timings tag for Network Monitor.
 */
function getNetMonitorTimingsURL() {
  return `${USER_DOC_URL}network_monitor/request_details/#network-monitor-request-details-timings-tab`;
}

/**
 * Get the URL for Performance Analysis
 *
 * @return {string} The URL for the documentation of Performance Analysis.
 */
function getPerformanceAnalysisURL() {
  return `${USER_DOC_URL}network_monitor/performance_analysis/`;
}

/**
 * Get the URL for Filter box
 *
 * @return {string} The URL for the documentation of Filter box.
 */
function getFilterBoxURL() {
  return `${USER_DOC_URL}network_monitor/request_list/#filtering-by-properties`;
}

/**
 * Get the MDN URL for Tracking Protection
 *
 * @return {string} The MDN URL for the documentation of Tracking Protection.
 */
function getTrackingProtectionURL() {
  return `${MDN_URL}Web/Privacy/Guides/Firefox_tracking_protection${getGAParams()}`;
}

/**
 * Get the MDN URL for CORS error reason, falls back to generic cors error page
 * if reason is not understood.
 *
 * @param {int} reason: Blocked Reason message from `netmonitor/src/constants.js`
 *
 * @returns {string} the MDN URL for the documentation of CORS errors
 */
function getCORSErrorURL(reason) {
  // Map from blocked reasons from netmonitor/src/constants.js to the correct
  // URL fragment to append to MDN_URL
  const reasonMap = new Map([
    [1001, "CORSDisabled"],
    [1002, "CORSDidNotSucceed"],
    [1003, "CORSRequestNotHttp"],
    [1004, "CORSMultipleAllowOriginNotAllowed"],
    [1005, "CORSMissingAllowOrigin"],
    [1006, "CORSNotSupportingCredentials"],
    [1007, "CORSAllowOriginNotMatchingOrigin"],
    [1008, "CORSMIssingAllowCredentials"],
    [1009, "CORSOriginHeaderNotAdded"],
    [1010, "CORSExternalRedirectNotAllowed"],
    [1011, "CORSPreflightDidNotSucceed"],
    [1012, "CORSInvalidAllowMethod"],
    [1013, "CORSMethodNotFound"],
    [1014, "CORSInvalidAllowHeader"],
    [1015, "CORSMissingAllowHeaderFromPreflight"],
  ]);
  const urlFrag = reasonMap.get(reason) || "";
  return `${MDN_URL}Web/HTTP/Guides/CORS/Errors/${urlFrag}`;
}

module.exports = {
  getHeadersURL,
  getHTTPStatusCodeURL,
  getNetMonitorTimingsURL,
  getPerformanceAnalysisURL,
  getFilterBoxURL,
  getTrackingProtectionURL,
  getCORSErrorURL,
};
PK