source: imaps-frontend/src/pages/Signup/Signup.jsx

import React, { useState } from "react";
import { Link, useNavigate } from "react-router-dom";
import illustration from "../../assets/illustration_img.png";
import styles from "./Signup.module.css";

export default function Signup() {
  const [name, setName] = useState("");
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [message, setMessage] = useState("");
  const [messageType, setMessageType] = useState(""); // New state to manage message type
  const navigate = useNavigate();

  const handleSubmit = async (e) => {
    e.preventDefault();

    const payload = {
      username: name,
      email: email,
      password: password,
    };

    try {
      const response = await fetch("http://localhost:8080/api/auth/register", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(payload),
      });

      if (response.ok) {
        setMessageType("success");
        setMessage("User registered successfully!");

        // Wait 3 seconds and then redirect to login page
        setTimeout(() => {
          navigate("/login");
        }, 3000);
      } else if (response.status === 409) {
        setMessageType("error");
        setMessage("Email is already taken.");
      } else {
        setMessageType("error");
        setMessage("Registration failed.");
      }
    } catch (error) {
      console.error("Error:", error);
      setMessageType("error");
      setMessage("Error registering user.");
    }
  };

  return (
    <div className={styles.wrapper}>
      <div className={styles.illustration}>
        <img src={illustration} alt="illustration" />
      </div>
      <div className={styles.form}>
        <div className={styles.heading}>CREATE AN ACCOUNT</div>
        <form onSubmit={handleSubmit}>
          <div>
            <label htmlFor="name">Username</label>
            <input
              type="text"
              id="name"
              value={name}
              onChange={(e) => setName(e.target.value)}
              placeholder="Enter your username"
              required
            />
          </div>
          <div>
            <label htmlFor="email">E-Mail</label>
            <input
              type="email"
              id="email"
              value={email}
              onChange={(e) => setEmail(e.target.value)}
              placeholder="Enter your email"
              required
            />
          </div>
          <div>
            <label htmlFor="password">Password</label>
            <input
              type="password"
              id="password"
              value={password}
              onChange={(e) => setPassword(e.target.value)}
              placeholder="Enter your password"
              required
            />
          </div>
          <button type="submit">Submit</button>

          {/* Display message with appropriate styling */}
          {message && (
            <p className={messageType === "success" ? styles.successMessage : styles.errorMessage}>
              {message}
            </p>
          )}
          <h2 align="center" className={styles.or}>
            OR
          </h2>
        </form>
        <p>
          Have an account? <Link to="/Login"> Login </Link>
        </p>
      </div>
    </div>
  );
}