Create the register page on appYour-Seo-Source/qwik#2

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# Repo & Issue Metadata
Repo: qwik: No description provided.
Issue Title: create the register page on app

You have previously changed these files:
<changed_file file_path="starters/e2e/e2e.register.spec.ts">
--- 
+++ 
@@ -0,0 +1,38 @@
+import { test, expect } from "@playwright/test";
+
+test.describe("registration page", () => {
+  test("navigate to registration page", async ({ page }) => {
+    await page.goto("/register");
+    await expect(page).toHaveURL("/register");
+  });
+
+  test("fill out and submit registration form", async ({ page }) => {
+    await page.goto("/register");
+    await page.fill('input[name="username"]', "testUser");
+    await page.fill('input[name="email"]', "testuser@example.com");
+    await page.fill('input[name="password"]', "password123");
+    await page.click('button[type="submit"]');
+    await expect(page).toHaveURL("/dashboard");
+    await expect(page.locator(".welcome-message")).toContainText("Welcome, testUser");
+  });
+
+  test("verify registration with invalid email", async ({ page }) => {
+    await page.goto("/register");
+    await page.fill('input[name="username"]', "testUser");
+    await page.fill('input[name="email"]', "notanemail");
+    await page.fill('input[name="password"]', "password123");
+    await page.click('button[type="submit"]');
+    await expect(page.locator('input[name="email"]')).toHaveCSS("border-color", "red");
+    await expect(page.locator(".error-message")).toContainText("Please enter a valid email address");
+  });
+
+  test("verify registration with short password", async ({ page }) => {
+    await page.goto("/register");
+    await page.fill('input[name="username"]', "testUser");
+    await page.fill('input[name="email"]', "testuser@example.com");
+    await page.fill('input[name="password"]', "pass");
+    await page.click('button[type="submit"]');
+    await expect(page.locator('input[name="password"]')).toHaveCSS("border-color", "red");
+    await expect(page.locator(".error-message")).toContainText("Password must be at least 8 characters");
+  });
+});
</changed_file>
<changed_file file_path="src/pages/register.tsx">
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+++ 
@@ -0,0 +1,63 @@
+import React, { useState } from 'react';
+
+// Placeholder for an actual API call
+async function registerUser(userData) {
+  console.log('Registering user:', userData);
+  // Simulate API call
+  return new Promise((resolve) => setTimeout(() => resolve({ success: true }), 1000));
+}
+
+const RegisterPage = () => {
+  const [username, setUsername] = useState('');
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+
+  const validateForm = () => {
+    if (!email.includes('@')) {
+      setError('Please enter a valid email address');
+      return false;
+    }
+    if (password.length < 8) {
+      setError('Password must be at least 8 characters');
+      return false;
+    }
+    return true;
+  };
+
+  const handleSubmit = async (event) => {
+    event.preventDefault();
+    setError('');
+
+    if (!validateForm()) return;
+
+    const response = await registerUser({ username, email, password });
+    if (response.success) {
+      console.log('User registered successfully');
+      // Redirect to dashboard or show success message
+    } else {
+      setError('Registration failed');
+    }
+  };
+
+  return (
+    <form onSubmit={handleSubmit}>
+      <div>
+        <label htmlFor="username">Username</label>
+        <input id="username" value={username} onChange={(e) => setUsername(e.target.value)} />
+      </div>
+      <div>
+        <label htmlFor="email">Email</label>
+        <input id="email" type="email" value={email} onChange={(e) => setEmail(e.target.value)} />
+      </div>
+      <div>
+        <label htmlFor="password">Password</label>
+        <input id="password" type="password" value={password} onChange={(e) => setPassword(e.target.value)} />
+      </div>
+      {error && <div style={{ color: 'red' }}>{error}</div>}
+      <button type="submit">Register</button>
+    </form>
+  );
+};
+
+export default RegisterPage;
</changed_file>
<changed_file file_path="src/routes.ts">
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+++ 
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+import { lazy } from 'react';
+import { RouteObject } from 'react-router-dom';
+import Register from './pages/register.tsx';
+
+const routes: RouteObject[] = [
+  // Assuming there are other routes defined here
+  {
+    path: '/register',
+    element: <Register />,
+  },
+  // Other routes continue here
+];
</changed_file>
<changed_file file_path="src/api/register.ts">
--- 
+++ 
@@ -0,0 +1,26 @@
+import { ResponseData } from './global.d';
+
+interface RegistrationData {
+  username: string;
+  email: string;
+  password: string;
+}
+
+async function registerUser(data: RegistrationData): Promise<ResponseData> {
+  const response = await fetch('/api/register', {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify(data),
+  });
+
+  if (!response.ok) {
+    const errorData = await response.json();
+    throw new Error(errorData.message || 'Failed to register user');
+  }
+
+  return response.json();
+}
+
+export { registerUser };
</changed_file>

Relevant files in this PR:

<relevant_file file_path="src/api/register.ts">
import { test, expect } from "@playwright/test";

test.describe("registration page", () => {
  test("navigate to registration page", async ({ page }) => {
    await page.goto("/register");
    await expect(page).toHaveURL("/register");
  });

  test("fill out and submit registration form", async ({ page }) => {
    await page.goto("/register");
    await page.fill('input[name="username"]', "testUser");
    await page.fill('input[name="email"]', "testuser@example.com");
    await page.fill('input[name="password"]', "password123");
    await page.click('button[type="submit"]');
    await expect(page).toHaveURL("/dashboard");
    await expect(page.locator(".welcome-message")).toContainText("Welcome, testUser");
  });

  test("verify registration with invalid email", async ({ page }) => {
    await page.goto("/register");
    await page.fill('input[name="username"]', "testUser");
    await page.fill('input[name="email"]', "notanemail");
    await page.fill('input[name="password"]', "password123");
    await page.click('button[type="submit"]');
    await expect(page.locator('input[name="email"]')).toHaveCSS("border-color", "red");
    await expect(page.locator(".error-message")).toContainText("Please enter a valid email address");
  });

  test("verify registration with short password", async ({ page }) => {
    await page.goto("/register");
    await page.fill('input[name="username"]', "testUser");
    await page.fill('input[name="email"]', "testuser@example.com");
    await page.fill('input[name="password"]', "pass");
    await page.click('button[type="submit"]');
    await expect(page.locator('input[name="password"]')).toHaveCSS("border-color", "red");
    await expect(page.locator(".error-message")).toContainText("Password must be at least 8 characters");
  });
});

</relevant_file>

<section id="A">
import React, { useState } from 'react';

// Placeholder for an actual API call
async function registerUser(userData) {
  console.log('Registering user:', userData);
  // Simulate API call
  return new Promise((resolve) => setTimeout(() => resolve({ success: true }), 1000));
}

</section id="A">
<section id="B">
const RegisterPage = () => {
  const [username, setUsername] = useState('');
  const [email, setEmail] = useState('');
  const [password, setPassword] = useState('');
  const [error, setError] = useState('');

  const validateForm = () => {
    if (!email.includes('@')) {
      setError('Please enter a valid email address');
      return false;
    }
    if (password.length < 8) {
      setError('Password must be at least 8 characters');
      return false;
    }
    return true;
  };

</section id="B">
<section id="C">
  const handleSubmit = async (event) => {
    event.preventDefault();
    setError('');

    if (!validateForm()) return;

    const response = await registerUser({ username, email, password });
    if (response.success) {
      console.log('User registered successfully');
      // Redirect to dashboard or show success message
    } else {
      setError('Registration failed');
    }
  };

</section id="C">
<section id="D">
  return (
    <form onSubmit={handleSubmit}>
      <div>
        <label htmlFor="username">Username</label>
        <input id="username" value={username} onChange={(e) => setUsername(e.target.value)} />
      </div>
      <div>
        <label htmlFor="email">Email</label>
        <input id="email" type="email" value={email} onChange={(e) => setEmail(e.target.value)} />
      </div>
      <div>
        <label htmlFor="password">Password</label>
        <input id="password" type="password" value={password} onChange={(e) => setPassword(e.target.value)} />
      </div>
      {error && <div style={{ color: 'red' }}>{error}</div>}
      <button type="submit">Register</button>
    </form>
  );
};

export default RegisterPage;
</section id="D">

# Request
• Modify the Register component to call the registration API function on form submission. Import the registration API function from "src/api/register.ts" and use it in the form's onSubmit handler to send the user's registration data to the backend.
• Add error handling and user feedback mechanisms, such as displaying error messages or redirecting the user to a success page upon successful registration.