Function generateConsolePipeCode

packages/devtools-vite/src/virtual-console.ts:23–341

(
  levels: Array<ConsoleLevel>,
  viteServerUrl: string,
)

 * Returns the inline code as a string - no imports needed since we use fetch.
 */
export function generateConsolePipeCode(
  levels: Array<ConsoleLevel>,
  viteServerUrl: string,
): string {
  const levelsArray = JSON.stringify(levels)

  return `
;(function __tsdConsolePipe() {
  // Detect environment
  var isServer = typeof window === 'undefined';
  var envKey = isServer ? '__TSD_SERVER_CONSOLE_PIPE_INITIALIZED__' : '__TSD_CONSOLE_PIPE_INITIALIZED__';
  var globalObj = isServer ? globalThis : window;
  
  // Only run once per environment
  if (globalObj[envKey]) return;
  globalObj[envKey] = true;

  var CONSOLE_LEVELS = ${levelsArray};
  var VITE_SERVER_URL = ${JSON.stringify(viteServerUrl)};

  // Store original console methods before we override them
  var originalConsole = {};
  for (var i = 0; i < CONSOLE_LEVELS.length; i++) {
    var level = CONSOLE_LEVELS[i];
    originalConsole[level] = console[level].bind(console);
  }

  // Simple inline batcher implementation
  var batchedEntries = [];
  var batchTimeout = null;
  var BATCH_WAIT = isServer ? 50 : 100;
  var BATCH_MAX_SIZE = isServer ? 20 : 50;

  function flushBatch() {
    if (batchedEntries.length === 0) return;
    
    var entries = batchedEntries;
    batchedEntries = [];
    batchTimeout = null;
    
    // Determine endpoint based on environment
    var endpoint = isServer 
      ? VITE_SERVER_URL + '/__tsd/console-pipe/server'
      : '/__tsd/console-pipe';
    
    // Send to Vite server via fetch
    fetch(endpoint, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ entries: entries }),
    }).catch(function( ) {
     // Swallow errors  
    });
  }

  function addToBatch(entry) {
    batchedEntries.push(entry);