Searchbar route setup

src/app/catalogue/page.tsx

@@ -0,0 +1,102 @@
+"use client";
+
+import { useSearchParams, useRouter } from "next/navigation"; 
+import { useEffect, useState } from "react";
+import axios, { AxiosError } from "axios";
+import Cryptr from "cryptr";
+
+interface Paper {
+  _id: string;
+  exam: string;
+  finalUrl: string;
+  slot: string;
+  subject: string;
+  year: string;
+}
+
+const cryptr = new Cryptr(process.env.NEXT_PUBLIC_CRYPTO_SECRET ?? "default_crypto_secret");
+
+const Catalogue = () => {
+  const router = useRouter();  
+  const searchParams = useSearchParams();  
+  const subject = searchParams.get('subject');  
+  const [papers, setPapers] = useState<Paper[]>([]);
+  const [error, setError] = useState<string | null>(null);
+  const [loading, setLoading] = useState<boolean>(false);  
+
+  useEffect(() => {
+    if (subject) {
+      const fetchPapers = async () => {
+        setLoading(true);  
+
+        try {
+          const papersResponse = await axios.get("http://localhost:3000/api/papers", {
+            params: { subject },
+          });
+
+          const { res: encryptedPapersResponse } = papersResponse.data;
+          const decryptedPapersResponse = cryptr.decrypt(encryptedPapersResponse);
+          // console.log("Decrypted Papers Response:", decryptedPapersResponse); 
+
+          const papersData: Paper[] = JSON.parse(decryptedPapersResponse).papers;
+          setPapers(papersData);
+        } catch (error) {
+
+          if (axios.isAxiosError(error)) {
+            const axiosError = error as AxiosError<{ message?: string }>;
+            const errorMessage = axiosError.response?.data?.message || "Error fetching papers";
+            setError(errorMessage);
+
+          } else {
+            setError("Error fetching papers");
+          }
+
+        } finally {
+          setLoading(false);  
+        }
+      };
+
+      fetchPapers();
+    }
+  }, [subject]);  
+
+  return (
+    <div className="min-h-screen bg-gray-50 p-8">
+
+      <button onClick={() => router.push('/')} className="mb-4 px-4 py-2 bg-blue-500 text-white rounded-md">
+        Back to Search
+      </button>
+
+      <h1 className="text-2xl font-bold mb-4">Papers for {subject}</h1>
+      {error && <p className="text-red-500">{error}</p>}
+
+      {loading ? (
+        <p>Loading papers...</p>
+      ) : (
+        papers.length > 0 ? (
+          <div className="grid grid-cols-1 gap-4">
+
+            {papers.map((paper) => (
+              <div key={paper._id} className="border rounded-md p-4 shadow-md bg-white">
+
+                <h3 className="text-xl font-bold">Exam: {paper.exam}</h3>
+                <p>Slot: {paper.slot}</p>
+                <p>Subject: {paper.subject}</p>
+                <p>Year: {paper.year}</p>
+
+                <a href={paper.finalUrl} target="_blank" rel="noopener noreferrer" className="text-blue-500 hover:underline">
+                  View Paper
+                </a>
+
+              </div>
+            ))}
+          </div>
+        ) : (
+          <p>No papers available for this subject.</p>
+        )
+      )}
+    </div>
+  );
+};
+
+export default Catalogue;

src/app/components/searchbar.tsx

@@ -1,34 +1,79 @@
 "use client";
+
 import { useState } from "react";
+import axios from "axios";
 import { Search } from "lucide-react";
+import Cryptr from "cryptr";
+import { useRouter } from "next/navigation";  
+
+const cryptr = new Cryptr(
+  process.env.NEXT_PUBLIC_CRYPTO_SECRET ?? "default_crypto_secret"
+);
 
 const SearchBar = () => {
+  const router = useRouter();  
   const [searchText, setSearchText] = useState("");
+  const [suggestions, setSuggestions] = useState<string[]>([]);
+  const [error, setError] = useState<string | null>(null);
+
+  const handleSearchChange = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const text = e.target.value;
+    setSearchText(text);
+
+    if (text.length > 1) {
+      try {
+        const searchResponse = await axios.get("http://localhost:3000/api/search", {
+          params: { text },
+        });
+
+        const { res: encryptedSearchResponse } = searchResponse.data;
+        const decryptedSearchResponse = cryptr.decrypt(encryptedSearchResponse);
+        // console.log("Decrypted Search Response:", decryptedSearchResponse);
+
+        const { subjects } = JSON.parse(decryptedSearchResponse);
+        const suggestionList = subjects.map((subjectObj: { subject: string }) => subjectObj.subject);
+        setSuggestions(suggestionList);
+      } catch (error) {
+        setError("Error fetching suggestions");
+      }
+    } else {
+      setSuggestions([]);
+    }
+  };
 
-  const handleSearch = (event: React.FormEvent) => {
-    event.preventDefault();
-    console.log("Searching for:", searchText);
+  const handleSelectSuggestion = async (suggestion: string) => {
+    setSearchText(suggestion);
+    setSuggestions([]);
+    router.push(`/catalogue?subject=${encodeURIComponent(suggestion)}`);
   };
 
   return (
-    <div className="flex min-h-screen items-center justify-center bg-gray-50">
-      <form onSubmit={handleSearch} className="w-full max-w-md">
+    <div className="flex min-h-screen items-center justify-center bg-gray-50 flex-col">
+      <form className="w-full max-w-md">
         <div className="relative">
-          <input
-            type="text"
-            value={searchText}
-            onChange={(e) => setSearchText(e.target.value)}
-            placeholder="Search..."
-            className="w-full rounded-md border border-gray-300 px-4 py-2 pr-10 shadow-sm focus:border-indigo-500 focus:outline-none focus:ring-2 focus:ring-indigo-500"
-          />
-          <button
-            type="submit"
-            className="absolute inset-y-0 right-0 flex items-center pr-3"
-          >
+
+          <input type="text" value={searchText} onChange={handleSearchChange}
+            placeholder="Search..." className="w-full rounded-md border border-gray-300 px-4 py-2 pr-10 shadow-sm focus:border-indigo-500 focus:outline-none focus:ring-2 focus:ring-indigo-500"/>
+
+          <button type="submit" className="absolute inset-y-0 right-0 flex items-center pr-3">
             <Search className="h-5 w-5 text-gray-400" />
           </button>
+
         </div>
+        {suggestions.length > 0 && (
+          <ul className="absolute z-10 w-full bg-white border border-gray-300 rounded-md mt-2">
+            {suggestions.map((suggestion, index) => (
+
+              <li key={index} onClick={() => handleSelectSuggestion(suggestion)} className="cursor-pointer p-2 hover:bg-gray-100">
+                {suggestion}
+              </li>
+
+            ))}
+          </ul>
+        )}
       </form>
+
+      {error && <p className="mt-4 text-red">{error}</p>}
     </div>
   );
 };