Function discoverServer

chrome-extension/panel.js:656–921

(quietMode = false)

// Server discovery function (extracted to be reusable)
async function discoverServer(quietMode = false) {
  // Cancel any ongoing discovery operations before starting a new one
  cancelOngoingDiscovery();

  // Create a new AbortController for this discovery process
  discoveryController = new AbortController();
  isDiscoveryInProgress = true;

  // In quiet mode, we don't show the connection status until we either succeed or fail completely
  if (!quietMode) {
    connectionStatusDiv.style.display = "block";
    statusIcon.className = "status-indicator";
    statusText.textContent = "Discovering server...";
  }

  // Always update the connection banner
  updateConnectionBanner(false, null);

  try {
    console.log("Starting server discovery process");

    // Add an early cancellation listener that will respond to page navigation/refresh
    discoveryController.signal.addEventListener("abort", () => {
      console.log("Discovery aborted via AbortController signal");
      isDiscoveryInProgress = false;
    });

    // Common IPs to try (in order of likelihood)
    const hosts = ["localhost", "127.0.0.1"];

    // Add the current configured host if it's not already in the list
    if (
      !hosts.includes(settings.serverHost) &&
      settings.serverHost !== "0.0.0.0"
    ) {
      hosts.unshift(settings.serverHost); // Put at the beginning for priority
    }

    // Add common local network IPs
    const commonLocalIps = ["192.168.0.", "192.168.1.", "10.0.0.", "10.0.1."];
    for (const prefix of commonLocalIps) {
      for (let i = 1; i <= 5; i++) {
        // Reduced from 10 to 5 for efficiency
        hosts.push(`${prefix}${i}`);
      }
    }

    // Build port list in a smart order:
    // 1. Start with current configured port
    // 2. Add default port (3025)
    // 3. Add sequential ports around the default (for fallback detection)
    const ports = [];

    // Current configured port gets highest priority
    const configuredPort = parseInt(settings.serverPort, 10);
    ports.push(configuredPort);

    // Add default port if it's not the same as configured