Function installConsoleInterceptor

Source

export function installConsoleInterceptor(): () => void {
  if (interceptorInstalled) {
    return () => {
      // no-op cleanup when already installed by another consumer
    };
  }

  if (globalThis.window === undefined) {
    return () => {
      // no console interception in non-browser environments (Main process, Node.js)
      // This is intentional and safe - logging in Main process goes directly to DevTools
    };
  }

  for (const level of LOG_LEVELS) {
    const original =
      assignableConsole[level]?.bind(console) ?? console.log.bind(console);
    originalConsoleMethods.set(level, original);

    assignableConsole[level] = (...args: unknown[]) => {
      logCollector.addEntry(level, args);
      original(...args);
    };
  }

  // Wrap console group methods to track hierarchy
  const originalGroupCollapsed = console.groupCollapsed.bind(console);
  const originalGroup = console.group.bind(console);
  const originalGroupEnd = console.groupEnd.bind(console);

  console.groupCollapsed = (...args: unknown[]) => {
    // Extract label from first argument
    const label = args.length > 0 ? String(args[0]) : "Group";
    logCollector.enterGroup(label);
    originalGroupCollapsed(...args);
  };

  console.group = (...args: unknown[]) => {
    // Extract label from first argument
    const label = args.length > 0 ? String(args[0]) : "Group";
    logCollector.enterGroup(label);
    originalGroup(...args);
  };

  console.groupEnd = () => {
    logCollector.exitGroup();
    originalGroupEnd();
  };

  interceptorInstalled = true;

  return () => {
    if (!interceptorInstalled) return;
    for (const level of LOG_LEVELS) {
      const original = originalConsoleMethods.get(level);
      if (original) {
        assignableConsole[level] = original;
      }
    }

    // Restore group methods
    console.groupCollapsed = originalGroupCollapsed;
    console.group = originalGroup;
    console.groupEnd = originalGroupEnd;

    interceptorInstalled = false;
    originalConsoleMethods.clear();
  };
}
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