// Check for saved session on page load
window.addEventListener("DOMContentLoaded", function () {
  const savedToken = localStorage.getItem("chatToken");
  const savedUsername = localStorage.getItem("chatUsername");
  const savedPhone = localStorage.getItem("chatUserPhone");

  if (savedToken && savedUsername) {
    currentUserPhone = savedPhone;
    validateToken(savedToken, savedUsername);
  }

  // Auto-resize textarea
  const messageInput = document.getElementById("messageInput");
  messageInput.addEventListener("input", function () {
    this.style.height = "auto";
    this.style.height = Math.min(this.scrollHeight, 100) + "px";
  });

  // Update mobile detection on resize
  window.addEventListener("resize", function () {
    isMobile = window.innerWidth <= 768;
    if (!isMobile) {
      // On desktop, ensure chats panel is visible
      document.getElementById("chatsPanel").classList.remove("active");
    }
  });
});