Merge pull request #2 from CSCC012023/feature/signup

[CIT-9] Feature: Add basic user signup implementation

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+citrus/node_modules
+citrus/.pnp
+citrus/.pnp.js
+
+# testing
+/coverage
+
+# next.js
+citrus/.next/
+citrus/out/
+
+# production
+citrus/build
+
+# misc
+citrus/.DS_Store
+citrus/*.pem
+
+# debug
+citrus/npm-debug.log*
+citrus/yarn-debug.log*
+citrus/yarn-error.log*
+
+# local env files
+.env*.local
+.env
+
+# vercel
+citrus/.vercel
+
+# typescript
+citrus/*.tsbuildinfo
+citrus/next-env.d.ts

.pre-commit-config.yaml

@@ -0,0 +1,12 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+    -   id: check-json
+    -   id: check-added-large-files
+    -   id: pretty-format-json

citrus/.env.template

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+DATABASE_URL=

citrus/.eslintrc.json

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+{
+  "extends": "next/core-web-vitals"
+}

citrus/README.md

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+This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/basic-features/font-optimization) to automatically optimize and load Inter, a custom Google Font.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.

citrus/app/api/users/[id]/route.ts

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+import * as db from '../../../../lib/db'
+import { NextResponse } from 'next/server';
+
+// Retrieve a paginated list of all users in the database
+export async function GET(request: Request , { params }) {
+    const res = await db.query("SELECT * FROM _temp WHERE username = $1", [params.id]);
+    const user = res.rows;
+    return NextResponse.json(user);
+}

citrus/app/api/users/route.ts

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+import * as db from '../../../lib/db'
+import { NextResponse } from 'next/server';
+
+// Retrieve a paginated list of all users in the database
+export async function GET(request: Request) {
+    const { searchParams } = new URL(request.url);
+    const next_id = searchParams.get('next_cursor');
+    const prev_id = searchParams.get('prev_cursor');
+    const limit = searchParams.get('limit') || 10;
+    var query = "SELECT username FROM _temp";
+    var params = [];
+    // If no cursor is provided, return the first page
+    if (!next_id && !prev_id) {
+        query = query + " ORDER BY username DESC LIMIT $1";
+        params = [limit];
+    }
+    else if (next_id && prev_id) {
+        // If both cursors are provided, indicate an error
+        return NextResponse.json(
+            {error: "You must provide either a next_cursor or a prev_cursor, but not both"},
+            {status: 400});
+        }
+    else if (next_id) {
+        // If a next_cursor is provided, return the next page
+        query = query + " WHERE username > $1 ORDER BY username DESC LIMIT $2";
+        params = [next_id, limit];
+    }
+    else {
+        // If a prev_cursor is provided, return the previous page
+        query = query + " WHERE username < $1 ORDER BY username DESC LIMIT $2";
+        params = [prev_id, limit];
+    }
+    // Retrieve the users from the database
+    const res = await db.query(query, params);
+    const users = res.rows;
+    // Set up the new cursors to return
+    const next_cursor = users[users.length - 1].id;
+    const prev_cursor = users[0].id;
+
+    return NextResponse.json({
+        "next_cursor": next_cursor || null,
+        "prev_cursor": prev_cursor || null,
+        "limit": limit,
+        users });
+}
+
+// Endpoint to create a new user
+export async function POST(request: Request) {
+    const body = await request.json();
+    const username = body.username;
+    const password = body.password;
+    // Check if the username is already taken
+    const check = await db.query("SELECT * FROM _temp WHERE username = $1", [username]);
+    if (check.rows.length > 0) {
+        return NextResponse.json({error: "Username already taken"}, {status: 400});
+    }
+    // Create the new user
+    await db.query("INSERT INTO _temp (username) VALUES ($1)", [username]);
+    return NextResponse.json({username: username, message: "User created successfully"});
+}

citrus/app/globals.css

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+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+:root {
+  --foreground-rgb: 0, 0, 0;
+  --background-start-rgb: 214, 219, 220;
+  --background-end-rgb: 255, 255, 255;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --foreground-rgb: 255, 255, 255;
+    --background-start-rgb: 0, 0, 0;
+    --background-end-rgb: 0, 0, 0;
+  }
+}
+
+body {
+  color: rgb(var(--foreground-rgb));
+  background: linear-gradient(
+      to bottom,
+      transparent,
+      rgb(var(--background-end-rgb))
+    )
+    rgb(var(--background-start-rgb));
+}

citrus/app/layout.tsx

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+import './globals.css'
+import { Inter } from 'next/font/google'
+
+const inter = Inter({ subsets: ['latin'] })
+
+export const metadata = {
+  title: 'Citrus',
+  description: 'A next-generation experience sharing platform.',
+}
+
+export default function RootLayout({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  return (
+    <html lang="en">
+      <body className={inter.className}>{children}</body>
+    </html>
+  )
+}

citrus/app/page.tsx

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+import Image from 'next/image'
+
+export default function Home() {
+  return (
+    <main className="flex min-h-screen flex-col items-center justify-between p-24">
+      <div className="z-10 w-full max-w-5xl items-center justify-between font-mono text-sm lg:flex">
+        <p className="fixed left-0 top-0 flex w-full justify-center border-b border-gray-300 bg-gradient-to-b from-zinc-200 pb-6 pt-8 backdrop-blur-2xl dark:border-neutral-800 dark:bg-zinc-800/30 dark:from-inherit lg:static lg:w-auto  lg:rounded-xl lg:border lg:bg-gray-200 lg:p-4 lg:dark:bg-zinc-800/30">
+          Get started by editing&nbsp;
+          <code className="font-mono font-bold">app/page.tsx</code>
+        </p>
+        <div className="fixed bottom-0 left-0 flex h-48 w-full items-end justify-center bg-gradient-to-t from-white via-white dark:from-black dark:via-black lg:static lg:h-auto lg:w-auto lg:bg-none">
+          <a
+            className="pointer-events-none flex place-items-center gap-2 p-8 lg:pointer-events-auto lg:p-0"
+            href="https://vercel.com?utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
+            target="_blank"
+            rel="noopener noreferrer"
+          >
+            By{' '}
+            <Image
+              src="/vercel.svg"
+              alt="Vercel Logo"
+              className="dark:invert"
+              width={100}
+              height={24}
+              priority
+            />
+          </a>
+        </div>
+      </div>
+
+      <div className="relative flex place-items-center before:absolute before:h-[300px] before:w-[480px] before:-translate-x-1/2 before:rounded-full before:bg-gradient-radial before:from-white before:to-transparent before:blur-2xl before:content-[''] after:absolute after:-z-20 after:h-[180px] after:w-[240px] after:translate-x-1/3 after:bg-gradient-conic after:from-sky-200 after:via-blue-200 after:blur-2xl after:content-[''] before:dark:bg-gradient-to-br before:dark:from-transparent before:dark:to-blue-700 before:dark:opacity-10 after:dark:from-sky-900 after:dark:via-[#0141ff] after:dark:opacity-40 before:lg:h-[360px]">
+        <Image
+          className="relative dark:drop-shadow-[0_0_0.3rem_#ffffff70] dark:invert"
+          src="/next.svg"
+          alt="Next.js Logo"
+          width={180}
+          height={37}
+          priority
+        />
+      </div>
+
+      <div className="mb-32 grid text-center lg:mb-0 lg:grid-cols-4 lg:text-left">
+        <a
+          href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={`mb-3 text-2xl font-semibold`}>
+            Docs{' '}
+            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
+              -&gt;
+            </span>
+          </h2>
+          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
+            Find in-depth information about Next.js features and API.
+          </p>
+        </a>
+
+        <a
+          href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800 hover:dark:bg-opacity-30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={`mb-3 text-2xl font-semibold`}>
+            Learn{' '}
+            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
+              -&gt;
+            </span>
+          </h2>
+          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
+            Learn about Next.js in an interactive course with&nbsp;quizzes!
+          </p>
+        </a>
+
+        <a
+          href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={`mb-3 text-2xl font-semibold`}>
+            Templates{' '}
+            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
+              -&gt;
+            </span>
+          </h2>
+          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
+            Explore the Next.js 13 playground.
+          </p>
+        </a>
+
+        <a
+          href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={`mb-3 text-2xl font-semibold`}>
+            Deploy{' '}
+            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
+              -&gt;
+            </span>
+          </h2>
+          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
+            Instantly deploy your Next.js site to a shareable URL with Vercel.
+          </p>
+        </a>
+      </div>
+    </main>
+  )
+}

citrus/app/signup/page.tsx

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+"use client"
+
+import Image from "next/image"
+
+import { useState, FormEvent } from 'react';
+
+const Signup = (): JSX.Element => {
+  const [name, setName] = useState<string>('');
+  const [email, setEmail] = useState<string>('');
+  const [password, setPassword] = useState<string>('');
+
+  const handleSubmit = async (e: FormEvent<HTMLFormElement>) => {
+    e.preventDefault();
+
+    // Handle form submission here
+    const res = await fetch('/api/users', {
+        method: 'POST',
+        body: JSON.stringify({"username": name}),
+    });
+    console.log(res);
+  };
+
+  return (
+    <div>
+      <h1>Sign Up</h1>
+      <form onSubmit={handleSubmit}>
+        <div>
+          <label>Name:</label>
+          <input
+            type="text"
+            value={name}
+            onChange={(e) => setName(e.target.value)}
+          />
+        </div>
+        <div>
+          <label>Email:</label>
+          <input
+            type="email"
+            value={email}
+            onChange={(e) => setEmail(e.target.value)}
+          />
+        </div>
+        <div>
+          <label>Password:</label>
+          <input
+            type="password"
+            value={password}
+            onChange={(e) => setPassword(e.target.value)}
+          />
+        </div>
+        <button type="submit">Sign Up</button>
+      </form>
+    </div>
+  );
+};
+
+export default Signup;

citrus/lib/db.js

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+const { Pool } = require("pg");
+
+const pool = new Pool({
+    connectionString: process.env.DATABASE_URL
+});
+
+export const query = (text, params, callback) => {
+    return pool.query(text, params, callback)
+}
+
+export const getClient = () => {
+    return pool.connect()
+}