interstellar_ai/app/page.tsx

"use client";
import React, { useState, useEffect, useRef } from 'react';
import Header from './components/Header';
import AI from './components/AI';
import FAQ from './components/Faq'; // Ensure the import path is correct
import Documentation from './components/Documentation'; // Ensure the import path is correct
import History from './components/History';
import Models from './components/Models';
import Credits from './components/Credits';
import Head from 'next/head';
import './styles/master.css';

const LandingPage: React.FC = () => {
  const [showDivs, setShowDivs] = useState(true);
  const [view, setView] = useState<'AI' | 'FAQ' | 'Documentation' | 'Credits'>('AI'); // Added 'Credits' here
  const conversationRef = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const scrollToBottom = () => {
      const conversation = conversationRef.current;
      if (conversation) {
        conversation.scrollTop = conversation.scrollHeight;
      }
    };

    scrollToBottom();

    const observer = new MutationObserver(scrollToBottom);
    if (conversationRef.current) {
      observer.observe(conversationRef.current, {
        childList: true,
        subtree: true,
      });
    }

    return () => {
      if (conversationRef.current) {
        observer.disconnect();
      }
    };
  }, []);

  const toggleDivs = () => {
    setShowDivs(prevState => !prevState);
  };

  const handleViewChange = (view: 'AI' | 'FAQ' | 'Documentation' | 'Credits') => { // Added 'Credits' here as well
    setView(view);
    if (view !== 'AI') {
      setShowDivs(false);
    }
  };

  return (
    <>
        <Header
          toggleDivs={toggleDivs}
          showDivs={showDivs}
          onViewChange={handleViewChange}
          showHistoryModelsToggle={true}
          showToggle={view === 'AI'} // Pass the condition here
          />
      <div className="container">
        <div className={`left-panel ${showDivs ? 'visible' : 'hidden'}`}>
          {showDivs && (
            <div className="history-models">
              <History />
              <Models />
            </div>
          )}
        </div>
        <div className={`conversation-container ${showDivs ? 'collapsed' : 'expanded'}`} ref={conversationRef}>
          {view === 'AI' && <AI />}
          {view === 'FAQ' && <FAQ />}
          {view === 'Documentation' && <Documentation />}
          {view === 'Credits' && <Credits />} {/* Now Credits will render properly */}
        </div>
      </div>
    </>
  );
};

export default LandingPage;