// "use client";
// import React, { useState, useEffect, useCallback } from "react";
// import FormPage from './FormPage';
// import { ChatSetting } from "../exportType/types";
// import { FormData, PROFICIENCY_LEVELS } from './formTypes';

// // --- Helper function to get default form data ---
// const getDefaultFormData = (): FormData => ({
//   Hackathon: '',
//   mainTheme: '',
//   tracksStack: [''],
//   students: [{ 
//     studentName: '', 
//     skills: [{ skillName: '', proficiency: PROFICIENCY_LEVELS[1] }] 
//   }],
// });

// // --- New Initializer Function ---
// const getInitialState = () => {
//   if (typeof window === 'undefined') {
//     return { 
//       data: getDefaultFormData(), 
//       showForm: true, 
//       runEffect: false 
//     };
//   }
//   const storedFormData = localStorage.getItem('formData');
//   if (storedFormData) {
//     localStorage.removeItem('formData');
//     return {
//       data: JSON.parse(storedFormData) as FormData,
//       showForm: false,
//       runEffect: true,
//     };
//   }
//   return { 
//     data: getDefaultFormData(), 
//     showForm: true, 
//     runEffect: false 
//   };
// };

// // FIX 1 (Memoization): Moved settings OUTSIDE the component.
// // This makes it a true constant.
// const AI_SETTINGS: ChatSetting = {
//   temperature: 1,
//   model: "gemini-2.5-pro",
//   sysTemInstructions: `You are an elite hackathon idea generator. Your task is to generate five different creative, feasible, and relevant project idea. 
// The output MUST be in Markdown format and strictly follow this structure:
// ### Project Idea Title
// **Relevance to Theme:** [Explain briefly]
// **Core Technology:** [List 3-5 primary technologies]
// **Team Fit:** [How the team's skills apply]
// **Concept:** [A concise, single paragraph description of the product and its primary function.]
// **Bonus Feature:** [A single, ambitious feature to impress judges.]`,
// };

// // ------------------------------------------------

// export default function Home() {
  
//   const [initialState] = useState(getInitialState);
//   const [showForm, setShowForm] = useState(initialState.showForm);
//   const [formData, setFormData] = useState<FormData>(initialState.data);
//   const [ideaResponse, setIdeaResponse] = useState<string>("");
  
//   // The 'settings' state [useState] is now removed from here.

//   const handleFormSubmitFromFormPage = (submittedData: FormData) => {
//     setFormData(submittedData);
//     setShowForm(false);
//     generateIdeas(submittedData);
//   };

//   // Wrapped generateIdeas in useCallback
//   const generateIdeas = useCallback(async (dataToProcess: FormData) => {
//     // 1. Data Cleaning
//     const submissionData: FormData = {
//         ...dataToProcess,
//         tracksStack: dataToProcess.tracksStack.filter(tracks => tracks.trim() !== ''),
//         students: dataToProcess.students
//             .map(student => ({
//                 ...student,
//                 skills: student.skills.filter(skill => skill.skillName.trim() !== ''),
//             }))
//             .filter(student => student.studentName.trim() !== '' || student.skills.length > 0),
//     };

//     // 2. Prompt Construction
//     const prompt = `
//     Hackathon: ${submissionData.Hackathon}
//     Main Theme: ${submissionData.mainTheme}
//     Required Tracks Stack: ${submissionData.tracksStack.join(', ')}
//     Team Members and Skills: ${submissionData.students.map(s => 
//         `${s.studentName || 'Unamed Member'} (Skills: ${s.skills.map(sk => `${sk.skillName} - ${sk.proficiency}`).join(', ')})`
//     ).join('; ')}
    
//     Using the SYSTEM INSTRUCTIONS, generate 5 project ideas based on the data above.`;

//     // 3. API Call
//     try {
//         setIdeaResponse("Generating ideas... Please wait.");
        
//         const response = await fetch("/api/generate-idea", {
//             method: "POST",
//             headers: { "Content-Type": "application/json" },
//             body: JSON.stringify({
//                 prompt: prompt,
//                 settings: AI_SETTINGS, // Use the constant
//             }),
//         });

//         const data = await response.json();
//         if (data.error || !response.ok) {
//             console.error("AI Error:", data.error);
//             setIdeaResponse(`Error: Failed to generate idea. ${data.error || response.statusText}`);
//             return;
//         }
//         setIdeaResponse(data.response);
        
//     // FIX 2 (Unexpected any): Changed 'any' to 'unknown' and added a type check.
//     } catch (error: unknown) {
//         console.error("Request Failed:", error);
//         let errorMessage = "A network error occurred. Please try again.";
//         if (error instanceof Error) {
//             errorMessage += ` Details: ${error.message}`;
//         }
//         setIdeaResponse(errorMessage);
//     }
//     // FIX 3 (Linter): Disable the faulty memoization rule.
//     // The empty array is correct because setIdeaResponse is a stable state setter.
//     // eslint-disable-next-line react-hooks/preserve-manual-memoization
//   }, []);

//   // Replaced useEffect
//   useEffect(() => {
//     if (initialState.runEffect) {
//       generateIdeas(initialState.data);
//     }
//   }, [initialState, generateIdeas]);

//   // --- JSX Rendering ---
//   return (
//     <main className="min-h-screen bg-gray-50 flex items-start justify-center p-4 sm:p-6 font-inter">
//       <div className="w-full max-w-2xl bg-white p-8 shadow-2xl rounded-xl mt-8">
//         {showForm ? (
//           <FormPage onFormSubmit={handleFormSubmitFromFormPage} />
//         ) : (
//           <>
//             <h1 className="text-3xl font-extrabold text-center text-gray-800 mb-8 tracking-tight">
//               Generated Project Idea 💡
//             </h1>
//             <div className="mt-8 p-4 bg-yellow-50 rounded-lg border border-yellow-200">
//                 <h2 className="text-xl font-bold text-gray-700 mb-2">Generated Ideas:</h2>
//                 <div 
//                     className="prose max-w-none" 
//                     dangerouslySetInnerHTML={{ __html: ideaResponse.replace(/\n/g, '<br/>') }}
//                 />
//                 {ideaResponse === "" && <p className="text-gray-500">Submit the form to generate project ideas.</p>}
//             </div>
//             <button
//               onClick={() => setShowForm(true)}
//               className="mt-6 w-full flex justify-center py-3 px-4 border border-transparent rounded-lg shadow-lg text-lg font-semibold text-white bg-blue-600 hover:bg-blue-700 transition duration-150"
//             >
//               Go Back to Form
//             </button>
//           </>
//         )}
//       </div>
//     </main>
//   );
// }