SurfSense/surfsense_web/app/register/page.tsx

"use client";
import React, { useState, useEffect } from "react";
import { useRouter } from "next/navigation";
import Link from "next/link";
import { Logo } from "@/components/Logo";
import { AmbientBackground } from "../login/AmbientBackground";

export default function RegisterPage() {
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [confirmPassword, setConfirmPassword] = useState("");
  const [error, setError] = useState("");
  const [isLoading, setIsLoading] = useState(false);
  const router = useRouter();

  // Check authentication type and redirect if not LOCAL
  useEffect(() => {
    const authType = process.env.NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE || "GOOGLE";
    if (authType !== "LOCAL") {
      router.push("/login");
    }
  }, [router]);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    
    // Form validation
    if (password !== confirmPassword) {
      setError("Passwords do not match");
      return;
    }

    setIsLoading(true);
    setError("");

    try {
      const response = await fetch(
        `${process.env.NEXT_PUBLIC_FASTAPI_BACKEND_URL}/auth/register`,
        {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify({
            email,
            password,
            is_active: true,
            is_superuser: false,
            is_verified: false,
          }),
        }
      );

      const data = await response.json();

      if (!response.ok) {
        throw new Error(data.detail || "Registration failed");
      }

      // Redirect to login page after successful registration
      router.push("/login?registered=true");
    } catch (err: any) {
      setError(err.message || "An error occurred during registration");
    } finally {
      setIsLoading(false);
    }
  };

  return (
    <div className="relative w-full overflow-hidden">
      <AmbientBackground />
      <div className="mx-auto flex h-screen max-w-lg flex-col items-center justify-center">
        <Logo className="rounded-md" />
        <h1 className="my-8 text-xl font-bold text-neutral-800 dark:text-neutral-100 md:text-4xl">
          Create an Account
        </h1>

        <div className="w-full max-w-md">
          <form onSubmit={handleSubmit} className="space-y-4">
            {error && (
              <div className="rounded-md bg-red-50 p-4 text-sm text-red-500 dark:bg-red-900/20 dark:text-red-200">
                {error}
              </div>
            )}
            
            <div>
              <label htmlFor="email" className="block text-sm font-medium text-gray-700 dark:text-gray-300">
                Email
              </label>
              <input
                id="email"
                type="email"
                required
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                className="mt-1 block w-full rounded-md border border-gray-300 bg-white px-3 py-2 shadow-sm focus:border-blue-500 focus:outline-none focus:ring-blue-500 dark:border-gray-700 dark:bg-gray-800 dark:text-white"
              />
            </div>

            <div>
              <label htmlFor="password" className="block text-sm font-medium text-gray-700 dark:text-gray-300">
                Password
              </label>
              <input
                id="password"
                type="password"
                required
                value={password}
                onChange={(e) => setPassword(e.target.value)}
                className="mt-1 block w-full rounded-md border border-gray-300 bg-white px-3 py-2 shadow-sm focus:border-blue-500 focus:outline-none focus:ring-blue-500 dark:border-gray-700 dark:bg-gray-800 dark:text-white"
              />
            </div>

            <div>
              <label htmlFor="confirmPassword" className="block text-sm font-medium text-gray-700 dark:text-gray-300">
                Confirm Password
              </label>
              <input
                id="confirmPassword"
                type="password"
                required
                value={confirmPassword}
                onChange={(e) => setConfirmPassword(e.target.value)}
                className="mt-1 block w-full rounded-md border border-gray-300 bg-white px-3 py-2 shadow-sm focus:border-blue-500 focus:outline-none focus:ring-blue-500 dark:border-gray-700 dark:bg-gray-800 dark:text-white"
              />
            </div>

            <button
              type="submit"
              disabled={isLoading}
              className="w-full rounded-md bg-blue-600 px-4 py-2 text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
            >
              {isLoading ? "Creating account..." : "Register"}
            </button>
          </form>

          <div className="mt-4 text-center text-sm">
            <p className="text-gray-600 dark:text-gray-400">
              Already have an account?{" "}
              <Link href="/login" className="font-medium text-blue-600 hover:text-blue-500 dark:text-blue-400">
                Sign in
              </Link>
            </p>
          </div>
        </div>
      </div>
    </div>
  );
}